Materials Science and Engineering Commons^™

Hydraulic Balsa Wood Rising Bridge, Kaitlyn Greenfield

All Undergraduate Projects

What is the solution to allowing tall vessels to navigate past a vehicle bridge that is less than 10 [ft] above the water? To answer this question, a balsa wood bridge was designed, constructed, and tested. The bridge needed to articulate by mechanical means, allow for travel through the bridge, and be able to withstand ample force while the main structure only being constructed of balsa wood and glue. The project was analyzed in sections. These sections include: the bridge structure and its members, the hydraulic lift, and the pins needed for the bridge and hydraulic lift to operate. The …

Valorization Of Xylan In Agroforestry Waste Streams, Harrison Appiah

Graduate Theses, Dissertations, and Problem Reports (ETD)

Valorization of Xylan in Agroforestry Waste Streams.

Harrison Appiah

Microwave-assisted deep eutectic solvent and gamma-valerolactone metallic chloride catalyzed conversion of xylan to furfural were investigated using a 2x3 factorial experimental design at two levels of percent microwave power, reaction time, and catalyst concentration. The levels of each factor studied were (20%, 60% microwave power, 2, 4 minutes, and 10, 20mg) respectively. The effect of three metallic chloride catalysts (LiCl, FeCl3.6H20, CuCl2) on the conversion of xylan to furfural was also investigated. The gamma-valerolactone-ferric chloride sent system exhibited the highest mean yield of furfural (56.50%). The next highest furfural yield of …

Atomic-Scale Simulation Of Dissipation And Adhesion During Interactions Between Mineral Surfaces, Baochi Doan

Electronic Theses and Dissertations, 2020-2023

Adhesion and dissipation during surface interactions are important phenomena with wide applications in materials science, including cold-spray technology for additive manufacturing and stiction in MEMS (Mircro ElectroMechanical Systems). In planet formation theories, energy dissipation in collisions between mineral grains is important to the formation of dust-grain aggregates and planetesimals. Early contact mechanics theories such as Hertz and Johnson-Kendall-Roberts have laid theoretical foundations for understanding these phenomena. Recently, there are breakthroughs in using non-equilibrium thermodynamics methods to elucidate dissipation. For example, the Green-Kubo method can calculate transport coefficients based on the Fluctuation-Dissipation theorem, and Jarzynski equality can be used to determine …

Processing Of 3d Porous Biomaterial Scaffolds To Enhance The In Vitro Breast Cancer Tumor Microenvironment, Zi Wang

Electronic Theses and Dissertations, 2020-2023

Tumors contain heterogeneous cell populations within the tumor microenvironment (TME). TME supports tumor progression and development via the function of multiple cell types and cell-extracellular matrix (ECM) interactions. 3D porous biomaterial scaffolds can be a type of in vitro tumor models to mimic TME ECM. Current tumor models lack structural complexity replicating tumor ECM, tunable mechanical properties, and have limited mass exchange between cells and their microenvironment. In this work, we firstly developed scaffolds with a hierarchical pore structure via the Freeze-FRESH(FF) fabrication technique that combines 3D printing and freeze-casting. Later, we studied the effect of varying processing parameters and …

Properties And Structures Of Alkali Molybdenum Iron Phosphate Glasses For Nuclear Waste Immobilization, Jincheng Bai

Doctoral Dissertations

"The development of glasses to immobilize nuclear wastes requires a detailed understanding of how composition affects the critical properties required to design wasteforms, including thermal stability and chemical durability. Those properties depend on the molecular-level structures of the glasses. The principal objective of this research was to develop a comprehensive understanding of the composition-structure-property relationships, including the effects of processing conditions, for glasses in the alkali- molybdenum-iron-phosphate systems that could then be used to inform the development of wasteforms of interest to the US Department of Energy.

The molecular-level structures of the alkali molybdenum iron phosphate glasses were analyzed by …

Solidification Cracking In Binary Al-Cu Alloys Additively Manufactured Through Laser Powder Bed Fusion, Keegan Muller

Electronic Theses and Dissertations, 2020-2023

Laser Powder Bed Fusion (LPBF) is an additive manufacturing technique with growing relevance in industry. However, alloys with a high susceptibility to micro-cracking during solidification cannot be feasibly manufactured through LPBF, such as in selected high-strength Al-alloys. The cracking susceptibility (CS) of Al-alloys varies with composition, so modeling CS with respect to composition is crucial in designing compatible alloys for LPBF. In a theoretical modeling of solidification cracking based on the Scheil equation, the relative CS is taken as the maximum value of |dT/d(fs^1/2)| when solidification is near completion. However, experimental observations of the crack density in Al-alloys suggest that …

(Quinolin-8-Yl) Tin Synthons In Transmetalation Reactions With Transition Metals Yield Multimetallic Organometallic Molecules And Clusters, Arjun Chandra Bhowmick

Dissertations and Theses

Transition metal (Hg, Ag, Pd, Ni, Sn, Cu) complexes and clusters form from the reaction of metal salts and QSnX (Q = quinolin-8-yl; X = Q or Cl) synthons. Our original intent was the use of Q2Hg, Q2Sn, or QSnCl as an ambiphilic ligand; however, we observed an apparent redox-trans metalation reaction in most of the cases. Bimetallic Hg-Ag complexes were prepared using Q2Hg as an ambiphilic ligand. Heterobimetallic (Ni-Sn and Pd-Sn) complexes were obtained from the reaction of NiCl2 (or PdCl2) with in situ generated QSnCl. Geometry and electronic configuration of the complexes were investigated using DFT methods. The …

Gas Pressure And Coating Distance For Nanohydroxyapatite Deposition On Stainless Steel 316l Using Flame Spray Technique, Angga Saputra, Utami Dyah Syafitri, Toto Sudiro, Gerald Ensang Timuda, Yessie Widya Sari

Journal of Metals, Materials and Minerals

 Metal implant coating engineering is needed to improve the surface biocompatibility properties of metals.  For this, coating metal surfaces with bioactive and biocompatible biomaterials will be an option. Having high biocompatibility as well as similarity in chemical properties, nanohydroxyapatite may be a candidate as biomaterials for coating the metal implant. The key to the success of metal implant plating is the formation of pores which increase the bioactivity and biocompatibility properties of the implant. In this study, nanohydroxyapatite was used to be coated on stainless steel type 316L (SS316L). To ensure that the coating works properly on the surface, an …

Analysis Of The Impact Factors From The Friction Stir Welding Process For Dissimilar Butt Joints Between Semi-Solid Cast Aluminum 356 And Aisi 1018 Carbon Steel, Worapong Boonchouytan, Jaknarin Chatthong, Rommador Burapa

Journal of Metals, Materials and Minerals

This research aimed to study the impacts of three different rotation speeds of 710, 1000, and 1400 rpm and three welding speeds of 40, 56, and 80 mm·min-1, on dissimilar butt joints between semi-solid aluminum 356 and AISI 1018 carbon steel. Welding tools were made from tungsten carbide material, and the offset was 0 mm. It was found that an increase in the rotation speed and welding speed caused accumulated heat, which led to the appropriate changes in the metallurgical structure. The rotation speed and welding speed factors had the impact on the greater blending of the two metals at …

Laser Powder Bed Fusion Of Ti6al4v-Xcu: Process Parameters, Thywill Ccphas Dzogbewu

Journal of Metals, Materials and Minerals

The original intent of coating biomedical and surgical devices surface with antibacterial agents is to prevent infections. However, the difference in the material properties between the biomedical devices and the coating materials causes the coating material to spall from the biomedical devices. To address the situation, the current research focused on investigating the possibility of using laser powder bed fusion process a subset of additive manufacturing technology to in situ alloy 1 at% Cu with Ti6Al4V. In situ alloying 1 at% Cu with Ti6Al4V would lead to the production of medical and surgical devices with inbuilt antibacterial property. To determine …

Development Of Chemically Grafted Multiwall Carbon Nanotube Onto Cellulose Fiber Sheet And Polyurethane Based Resin Composite For An Active Paper, Siripassorn Sukhkhawuttigit, Sarute Ummartyotin, Yingyot Infahsaeng

Journal of Metals, Materials and Minerals

Cellulose fibers (CFs) and carbon nanotubes (CNTs) were successfully developed on polyurethane substrate as a flexible composite paper. With small amount of CNTs, the composite was prepared by a suction filtration method. The existence of CNT additive in cellulose matrix was investigated based on the correlation of mechanical properties, thermal stability, and electrical properties. Although the highly transparent cellulose sheets impregnated with polyurethane were successfully fabricated, the low transmittance was obtained as the increasing of CNT additive. However, the dielectric properties of composite were enhanced with an addition of CNTs in the composite paper. The electrical conductivity was increased from …

Influence Of Cooling Conditions On Microstructure And Mechanical Property Of Sn-0.3ag-0.7cu Lead-Free Solder, Prajak Jattakul, Tavee Madsa, Piyawan Sunasuan, Niwat Mookam

Journal of Metals, Materials and Minerals

This research has investigated the influence of cooling conditions on the microstructure and mechanical properties i.e., tensile strength and microhardness of Sn-0.3Ag-0.7Cu lead-free solder. In the experiments, casting was performed at 300℃ with comparison between copper and stainless steel molds under slow and fast cooled conditions. X-ray diffractometer confirmed the presence of Cu6Sn5 and Ag3Sn phases in the solder matrix. Lead-free solder solidified under slow cooled conditions exhibited -Sn matrix with larger grain growth as compared to the fast cooled solder. The eutectic area of intermetallic compound (IMC) was found to increase with cooling rate. The tensile strength of slow …

Automated Control System For The Remote-Controlled Torch Positioner, Christopher Ferguson, Anna Abate, Kyle Cramer, Alex Sabitsch, Jacob Stefanko

Williams Honors College, Honors Research Projects

The goal of this project is to design and implement a controls system for Dr. Morscher’s burner rig. The rig serves to simulate jet turbine conditions and test how materials, specifically ceramic matrix composites, react under high temperatures and stresses. Currently, the location of the torch relies solely on manual adjustments and has no automated control system. The improved design will automatically adjust the torch position based on the desired temperature of the sample being tested, therefore maintaining a steady environment for the sample. The current method of manual adjustments for regulating temperature is a crude solution that does not …

Harrisburg University’S Face Shield Response For Health Care Workers, Matthew A. Walters

Experiential Learning Projects

This project was inducted into the Harrisburg University Digital Common's with a submittal event. The recording for this event can be accessed here: Harrisburg University’s Face Shield Response for Health Care Workers Submittal Event Recording

The pandemic has most definitely been a significant factor in how people operate throughout the past few years. The pandemic was first introduced at the end of 2019 and is still a current issue at the end of 2021. Close to the beginning of the pandemic, health care workers had found themselves with a shortage of protective gear to fight against the virus while working …

Material Analysis Of 3d Welded 5356 Aluminum Alloy, Ryan Fouts

Electronic Theses and Dissertations

Metal 3D printing has been reserved for aerospace and high-end automotive industries because of its cost. A gas metal arc welder (GMAW) on a rugged 3D printer frame could make metal additive manufacturing an option for more industries and consumers. 3D welded aluminum has not been examined in depth as an option for additive manufacturing (AM). Extensive tests are necessary to determine the correct settings to use a metal inert gas (MIG) welder for AM. Porosity within the welded material must be evaluated to better understand the additive process. The material properties of 3D welded aluminum will be tested and …

Biomechanical Investigation Of Plant Vascular Tissue For Bio-Inspired Design And Flexible Composites, Mukesh Roy

Electronic Theses and Dissertations

Since the inception of evolution, nature has continuously optimized all the natural materials. These optimizations are so efficient that scientists and engineers have started taking inspiration from nature. Such inspiration-based solutions provide sustainable development of new materials with enhanced structural properties and functionalities (such as stiffness, stability, toughness, self-healing etc.). This variety of properties and functionalities is mainly due to the hierarchical organization of such components. Abstraction of the hidden cues of the hierarchical organization, principles and underlying structure-function relations are some of the critical approaches of bioinspired materials design. Inspiration from animals and plants has helped develop the design …

Development Of A High Strength Composite Material Using Large Scale 3d Printing Applications Using Waste Plastic And Steel, Naga Sri Madhavareddy

Electronic Theses and Dissertations

This project focuses on developing a high strength composite material for largescale 3D printing applications using recycled materials like High-Density Polyethylene (HDPE) and Steel 430. This material has applications for in-space manufacturing (the Moon or Mars) as well as large-scale manufacturing on earth. In addition to creating a strong useful material, materials that are easily recycled, but are often not recycled, are used. Recycling plastic and metal reduces pollution, saves resources, reduces waste going to landfills, and prevents the destruction of habitats from the polymerization of new plastic and similarly mining new ore. The percentage of HDPE generated from recycled …

Effect Of Composition And Print Orientation On Thermal Conductivity Of 3d Printed Composites, Cory Jacques

Electronic Theses and Dissertations

Additive manufacturing (AM) technologies have become widely used for rapid prototyping and are beginning to be used for end-use applications. Fused Deposition Modeling (FDM) is a type of 3D printing where molten thermoplastic is extruded layer by layer to create parts. There is an increasing need for improvement and diversification of material properties to further extend the use of AM parts. AM parts have not been commonly used in heat transfer applications due to the limited availability of information on thermal conductivity of materials and the effects of printing orientation. A special apparatus was designed and built to experimentally test …

Actin Cytoskeleton Dynamics And Organization Modulated By Macromolecular Crowding, Cation Interaction, And Nanomaterials, Jinho Park

Electronic Theses and Dissertations, 2020-2023

The assembly of actin, the essential cytoskeleton protein, into filaments and bundles/networks is important in various cellular processes including cell movement and morphogenesis. Actin bundle formation occurs in crowded intracellular environments with the aid of actin-crosslinking proteins. The role of actin-crosslinking proteins such as fascin and a-actinin in bundle formation has been investigated, however, how intracellular environments affect actin crosslinker-induced bundle formation is unknown. In the first two parts of this dissertation, we explore the effects of macromolecular crowding and cation interactions on the organization and mechanics of actin crosslinker-induced bundles. To determine how changing environmental conditions modulate actin bundling, …

Supercapacitors From Nitrogen And Sulfur Co-Doped Graphene/Nickel Cobalt Sulfide, Nutthapong Poompiew

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research aims to develop high performance supercapacitors in term of capacitive efficiency, power density and long-term cycle stability. Supercapacitors are a kind of energy storages device which exhibit high power density when comparing with conventional batteries. However, most of them exhibits inefficient energy capacitance and long-term cycle stability. Thus, this research is focusing on development materials for using as supercapacitor electrodes. Thus, nitrogen and sulfur co-doped graphene and nickel cobalt compounds were synthesized using in situ hydrothermal process. This research is divided into two major parts (i) to sort out the optimum ratio of nickel and cobalt for the …

การเตรียมเซรามิกเซอร์โคเนียความหนาแน่นสูงจากเศษเจียระไนคิวบิกเซอร์โคเนีย, ณัชชา ปาลวัฒน์

Chulalongkorn University Theses and Dissertations (Chula ETD)

ในแต่ละปีอุตสาหกรรมเจียระไนเครื่องประดับคิวบิกเซอร์โคเนียในประเทศไทยมีปริมาณเศษเจียระไนคิวบิกเซอร์โคเนียปริมาณมากหลายร้อยตันถูกทิ้งอย่างสูญเปล่า จึงเกิดแนวคิดในการศึกษาวิจัยเพื่อพัฒนากระบวนการผลิตเซรามิกเซอร์โคเนียความหนาแน่นสูงโดยใช้เศษเจียระไนคิวบิกเซอร์โคเนียจากอุตสาหกรรมเป็นวัตถุดิบหลักในการทดลอง ร่วมกับการใช้สารตัวเติมแคลเซียมไดไฮโดรเจนฟอสเฟตเพื่อช่วยทำให้โครงสร้างเกิดเฟสของเหลวในขั้นตอนการเผาผนึก โดยทำการเตรียมตัวอย่างจากการนำเศษเจียระไนมาผ่านการเผาแคลไซน์ที่อุณหภูมิ 1000 องศาเซลเซียส เป็นเวลา 1 ชั่วโมง เพื่อกำจัดสิ่งเจือปนที่มาจากขั้นตอนการผลิตเครื่องประดับ ก่อนนำไปทำการบดผสมกับแคลเซียมไดไฮโดรเจนฟอสเฟตในอัตราส่วนร้อยละ 5 และ 10 โดยน้ำหนัก บดผสมเป็นเวลา 24 และ 48 ชั่วโมง จากนั้นนำไปอัดขึ้นรูปที่ความดัน 50 MPa เพื่อให้ได้ชิ้นงานที่มีลักษณะเป็นแผ่นกลมขนาดเส้นผ่านศูนย์กลาง 20 mm และนำไปเผาผนึกที่อุณหภูมิ 1650 องศาเซลเซียส เป็นเวลา 1, 2 และ 4 ชั่วโมง และแบ่งการศึกษาเป็นการเปรียบเทียบการเผาผนึกแบบสถานะของแข็งที่ไม่มีการใช้เติมสารตัวเติม และการเผาผนึกแบบเฟสของเหลวที่มีการเติมสารตัวเติมช่วยในการเผาผนึก โดยจากผลการทดลองพบว่าเงื่อนไขที่ดีที่สุด คือ ชิ้นงานที่ผ่านกระบวนการบดผสมกับสารตัวเติมในอัตราส่วนร้อยละ 10 โดยน้ำหนัก บดผสมเป็นเวลา 24 ชั่วโมง และเผาผนึกเป็นเวลา 2 ชั่วโมง พบว่าได้ค่าความหนาแน่นสูงถึง 5.27 g/cm3 ค่าการดูดซึมน้ำร้อยละ 0.12 และมีค่าความแข็ง 6.72 GPa ดังนั้นจึงทำการเลือกเงื่อนไขนี้มาเตรียมเป็นชิ้นงานแท่งสี่เหลี่ยมขนาด 60x10x5 mm เพื่อนำไปทดสอบความแข็งแรงด้วยเทคนิค 3-point bending จากผลการทดสอบพบว่าค่าความต้านทานแรงดัดมีค่าเท่ากับ 90.66 MPa ซึ่งผลจากงานวิจัยนี้ชี้ให้เห็นว่าการใช้สารตัวเติมแคลเซียมไดไฮโดรเจนฟอสเฟตช่วยให้เกิดเฟสของเหลวในกระบวนการเผาผนึกที่ส่งผลต่อโครงสร้างทางจุลภาคและสมบัติทางกลของชิ้นงานเซรามิกเซอร์โคเนียความหนาแน่นสูง

Experimental Exploration Of Shared Magnetic Phases Between Diverse Systems Of Iron-Pnictide Superconductors, Ryan Scott Stadel

Graduate Research Theses & Dissertations

The exciting field of iron-pnictide superconductors offers unique opportunities for studying the relationship between magnetism and unconventional superconductivity. This is vital to developing an understanding of the microscopic origin of high-temperature superconductivity, which is itself an important step in harnessing such a potentially revolutionary technology.

Polycrystalline and crystalline samples are synthesized over a diverse collection of related iron-pnictide systems including (Ca,Sr,Ba)1-xNaxFe2As2, Ba(Fe1-xCox)2As2 (122s), and LaFeAs1-xPxO, and TbFeAs1-xPxO (1111s). These compounds are characterized through various types of neutron and x-ray diffraction on multiple instruments, as well as muon spin resonance, and magnetic susceptibility measurements.

A thorough investigation into the conditions under …

Morphology Control Of One-Dimensional Gallium Nitride Nanostructures By Modulating The Crystallinity Of Sacrificial Gallium Oxide Templates, Yun Taek Ko, Mijeong Park, Jingyeong Park, Jaeyun Moon, Yong Ho Choa, Young In Lee

Mechanical Engineering Faculty Research

In this study, we demonstrated a method of controllably synthesizing one-dimensional nanostructures having a dense or a hollow structure using fibrous sacrificial templates with tunable crystallinity. The fibrous ga2o3 templates were prepared by calcining the polymer/gallium precursor nanofiber synthesized by an electrospinning process, and their crystallinity was varied by controlling the calcination temperature from 500oC to 900oC. gaN nanostructures were transformed by nitriding the ga2o3 nanofibers using NH3 gas. All of the transformed gaN nanostructures maintained a one-dimensional structure well and exhibited a diameter of about 50 nm, but their morphology was clearly distinguished according to the crystallinity of the …

Direct Energy Deposition Of Mo Powder Prepared By Electrode Induction Melting Gas Atomization, Goo Won Roh, Eun Soo Park, Jaeyun Moon, Hojun Lee, Jongmin Byun

Mechanical Engineering Faculty Research

Molybdenum (Mo) is used to form a barrier layer for metal wiring in displays or semiconductor devices. Recently, researches have been continuously attempted to fabricate Mo sputtering targets through additive manufacturing. in this study, spherical Mo powders with an average particle size of about 37 um were manufactured by electrode induction melting gas atomization. Subsequently, Mo layer with a thickness of 0.25 mm was formed by direct energy deposition in which the scan speed was set as a variable. According to the change of the scan speed, pores or cracks were found in the Mo deposition layer. Mo layer deposited …

Using Machine Learning To Interpret Dice Rolls, Hunter Wimsatt, Aarohi Panzade, Kaaustaaub Shankar, Warren Campbell

SEAS Faculty Publications

Gamers use polyhedral dice that come with 4 sides (D4), 6 sides (D6), 8 sides (D8), 10 sides (D10), 12 sides (D12) and 20 sides (D20). All dice are unfair, some more than others. The goal of this project was to develop a machine learning and computer vision solution for the interpretation of dice rolls. When combined with an automated dice roller it would facilitate the study of dice unfairness. In the machine learning literature, Convolutional Neural Networks (CNNs) are the preferred method of computer classification of images. The CNN convolves images with different weights and biases through multiple layers …

Modeling Of Rare Earth Solvent Extraction Process For Flowsheet Design And Optimization, Vaibhav Kumar Srivastava

Theses and Dissertations--Mining Engineering

The separation and purification of rare earth elements (REEs) into individual products has been a topic of significant interest for researchers and engineers for many decades. The prime reason for such sustained interest is due to REEs’ demand and application in modern technology, as well as the challenges associated with their separation and purification. The chemical similarity of rare earth group elements is responsible for difficult separability which makes purification of individual elements challenging. Despite associated complications, processes such as solvent extraction (SX) and ion-exchange have been successfully utilized in the separation and production of REEs on pilot and commercial …

Damage Assessment Of Glass Fiber Composites Using Dielectric Spectroscopy And Thermally Stimulated Depolarization Current, Bryan Durham, Gayathri Kola, Mohammadkian Mahroumi, Vamsee Vadlamudi, Rassel Raihan, Kenneth Reifsnider, Minhazur Rahman, Monjur Morshed Rabby, Partha Pratim Das, Muthu Ram Prabhu Elenchezhian

Institute of Predictive Performance Methodologies (IPPM-UTARI)-Archive

A composite is generally defined as a material composed of two or more separate sub-materials that complement each other's characteristics when combined. Composites are widely used in several major industries due to their low density, high strength, and relatively predictable chemical and electrical properties. One of the significant challenges of integrating composites into more diverse fields is the ability to accurately and consistently test for damages. Due to the myriad number of microscopic structures available in composite materials, a single-use testing system is a large contributor to current research. One approach to the non-destructive testing of composites lies in exploiting …

Lightning Strike Response Of Composite Structures: A Review, Akhileshwar Pandey, Ashutosh Kumar Upadhyay, Karunesh Kumar Shukla

Journal of Metals, Materials and Minerals

Wind turbines and aircraft are generally made of less conductive carbon/glass composites. Significant damages may occur to these materials if they are struck by high energy lightning strikes. Damage and structural response of composites is essentially a multiphysics domain, involving thermal, electrical, magnetic and structural analysis. In this article, the fundamental physics of lightning, multiphysics analysis, numerical implementation and experimental studies about composite materials are reviewed. The relevant international standards and possible characterization methods of lightning strike damage are also reproduced in this article. In addition to this, the current and prospective technologies, to protect composite from lightning strikes are …

Wear Behavior Of Aluminium 6061 Alloy Reinforced With Coated/Uncoated Multiwalled Carbon Nanotube And Graphene, Vijee Kumar, Kempaiah Ujjaini Nagegowda, Satish Babu Boppana, Ramesh Sengottuvelu, Palanikumar Kayaroganam

Journal of Metals, Materials and Minerals

The current study deals with the fabrication and investigation of wear characteristics of Aluminium 6061(Al6061) hybrid metal matrix composites (MMCs) processed through powder metallurgy technique. Al6061 hybrid MMCs involving fixed 2 wt% of coated/uncoated multiwalled carbon nanotubes (MWCNTs) and varying weight percentages of graphene were fabricated through ball milling procedure. To enhance the scattering of MWCNTs in the matrix, MWCNTs were coated by means of copper through electroless deposition method. Dry sliding wear conduct of Al6061 MMCs was investigated using a pin-on-disc wear testing machine. It was found that at lower load, composites exhibited lower wear resistance than base alloy …

Improvement On Cost-Performance Ratio Of Fiberglass/Carbon Fiber Hybrid Composite, Nathawat Poopakdee, Warut Thammawichai

Journal of Metals, Materials and Minerals

Fiberglass composite (FG) is widely used as a metal substitute in general applications due to its corrosion and chemical resistance, relatively high strength, and low cost. Still, the FG is deficient in performance and relatively heavy for airframes. Carbon fiber composite (CF) is utilized instead as it has greater performance and lower weight. However, the CF is brittle and expensive. Thus, in this work, we combine FG and CF into two types of hybrid composites to achieve a cost-effective solution with greater or comparable mechanical properties to those of CF. The first one uses FG as core and CF as …