Engineering Commons^™

Ultra-High Temperature Thermal And Mechanical Properties Of Zrb2-Based Ceramics, Greg Hilmas, Bill Fahrenholtz

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Advanced Characterization Of Composite Ultra High Temperature Ceramic Systems, W.E. Lee, Emily Eakins, Heather Jackson, Doni Jayaseelan

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

High Temperature Mechanical, Oxidation And Shock Resistance Properties Of Hot Pressed And Spark Plasma Sintered Tib2-Based Ceramics, Bikramjit Basu, G.B. Raju, V. Jayaram, K.P.J. Reddy

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Microstructures And Thermal Conductivities Of Hot-Pressed Zrb2-Sic Ceramics With A Variety Of Sic Sources, Seongwon Kim, Chang-Sup Kwon, Sung-Min Lee, Yoon-Suk Oh, Hyung-Tae Kim, Byung-Koog Jang

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Where We Are With The Understanding Of Metal/Ceramic Interactions: The Case Of Transition Metal Borides, A. Passerone, F. Valenza, C. Artini, M.L. Muolo

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Correlation Of Shear Strength Between Longitudial And Transverse Specimens, Erasto A. Fernandez

LSU New Orleans Theses and Dissertations

In this thesis, new methods for shear strength are proposed and backed up through extensive experimentation, ABAQUS models and data analysis of Titanium welds of three different alloys. The results are compared with those obtained by using the procedure outlined by AWS B4 for calculating Shear Strength in the transverse and longitudinal directions; this equation is widely used by the American Welding Society (AWS) and all those in search of more efficient designs involving welding.

It is a well-documented issue that the equation provided by AWS yields a large discrepancy between the values for shear strength of longitudinal and transverse …

A Cost Effective Screening Technique For Testing Uhtc Materials Using An Oxyacetylene Torch Flame, Anish Paul, Saranya Venugopal, Jon Binner, Bala Vaidhyanathan, Andrew Heaton, Peter Brown

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Uhtc-Based Hot Structures For Space Re-Entry: Lesson Learned And Future Perspectives, Luigi Scatteia

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Assessing Lean Systems Using Variability Mapping, Ahmed Deif

Industrial Technology and Packaging

A new approach to assess lean manufacturing based on system's variability is proposed. The assessment utilizes a new tool called variability source mapping (VSMII) which focuses on capturing and reducing variability across the production system. The new tool offers a new metric called variability index to measure the overall variability level of the system. Based on the mapping and the new metric, VSMII suggests a variability reduction plan guided by a recommendation list of both lean techniques as well as production control policies. An industrial application is used to demonstrate the new tool. Results show that VSMII managed to reduce …

Single Inverted Pendulum System Controller: System Study And Comparison, Cheng Cheng

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Cheng Cheng on May 15, 2012.

Solid State Diffusion Bonding Of Zrc To Zr-Based Alloys, Andrew Gillen, Lyndon Edwards, Daniel Riley, George Franks

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Joining Of Ultra-High Temperature Ceramics, Laura Silvestroni, Diletta Sciti, Laura Esposito, Andreas Glaeser

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Fusion Welding Of Zrb2-Based Ceramics, H.J. Brown, W.G. Fahrenholtz, G.E. Hilmas

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Amorphous Ni/Al Nanoscale Laminates As High-Energy Intermolecular Reactive Composites, Karthik Guda Vishnu, Mathew Cherukara, Hojin Kim, Alejandro Strachan

Birck and NCN Publications

We use molecular dynamics simulations to explore the potential use of amorphous metals in intermolecular reactive composites. Our simulations show that amorphous Ni/Al nanolaminates lead to an increase in temperature of up to 260 K over their crystalline counterparts; this increase corresponds to over 20% of the heat of fusion and can be explained in terms of the amorphization energy. The reactions are diffusion controlled and crystallization is observed in laminates with relatively long periods where high temperatures are experienced for sufficiently long times prior to intermixing; the effect of this process on the energetics and time involved in the …

Low Temperature Synthesis And Sintering Of Mechanically Activated Zrb2 Powders, Mustafa Tuncer

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Rehabilitation And Exercise Machine, Judith M. Burnfield, Yu Shu, Thad W. Buster, Carl Nelson

Department of Mechanical and Materials Engineering: Faculty Publications

An improved rehabilitation and exercise machine is provided which allows a person with physical limitations, disabilities or chronic conditions to use the machine in order to rehabilitate their muscles, improve joint flexibility, and enhance cardiovascular fitness.

A Pressure Gauge Based On Gas Density Measurement From Analysis Of The Thermal Noise Of An Atomic Force Microscope Cantilever, Dongjin Seo, Mark R. Paul, Willian A. Ducker

Faculty Publications

We describe a gas-density gauge based on the analysis of the thermally-driven fluctuations of an atomic force microscope (AFM) cantilever. The fluctuations are modeled as a ring-down of a simple harmonic oscillator, which allows fitting of the resonance frequency and damping of the cantilever, which in turn yields the gas density. The pressure is obtained from the density using the known equation of state. In the range 10–220 kPa, the pressure readings from the cantilever gauge deviate by an average of only about 5% from pressure readings on a commercial gauge. The theoretical description we use to determine the pressure …

In-Situ Imaging And Strain Determination During Fracture In A Sic/Sic Ceramic Matrix Composite, Joaquin Ramirez, F. Stoltzenburg, K.T. Faber, J. Almer, D. Singh, J. Routbort

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Microstructure Formation Pathways In Tantalum Carbides, Gregory Thompson, Robert Morris, Billie Wang, Bardford Schulz, Nick Deleon, Christopher Weinberger, Daniel Butts, Stephan Diepetrio, Lawrence Matson

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Program, Engineering Conferences International

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

First Principles Investigation On Chemical Bonding Of Transition Metal Borides And Carbides, Junshan Wang, Yanchun Zhou

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Fabrication Of Tac-Hfc Ceramics For Ultra-High Temperature Applications, Omar Cedillos, Doni Jayaseelan, Bill Lee

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Poster 4. Microstructure And Mechanical Properties Of Zrb2-Nb Composites, Sun Xin

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Densification And High Temperature Properties Of Zrb2 And Tib2-Based Composites, Neha Gupta, G.B. Raju, Bikramjit Basu

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Microstructure, Tribological Response, And Mechanical Properties Of Fiber Bonded Silicon Carbide Ceramics, M.C. Vera, J. Ramirez, J. Martinez, M. Singh

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Elevated Temperature Deformation Mechanisms In Ta2c, Nicholas De Leon, Billie Wang, Gregory Thompson, Christopher Weinberger

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Effects Of Carbon On The Processing And Thermal Properties Of Hot Pressed Zrb2, Greg Harrington, Greg Hilmas, William Fahrenholtz

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Ultra High Temperature Mechanical Testing Of Zrb2 Ceramics, Eric Neuman, Gregory Hilmas, William Fahrenholtz

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Characterization Of Mechanically Activated Zirconium Diboride (Zrb2) Powders, Mustafa Tuncer

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.

Ultra-High Temperature Ceramics Research At Afrl, M.K. Cinibulk, T.A. Parthasarathy

Ultra-High Temperature Ceramics: Materials For Extreme Environmental Applications II

No abstract provided.