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2016

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Articles 1 - 30 of 101

Full-Text Articles in Other Materials Science and Engineering

Zirconium Diboride, Hexagonal Boron Nitride, And Amorphous Alumina Thin Films For High Temperature Applications, David Murdock Stewart Dec 2016

Zirconium Diboride, Hexagonal Boron Nitride, And Amorphous Alumina Thin Films For High Temperature Applications, David Murdock Stewart

Electronic Theses and Dissertations

The use of microelectronic sensors and actuators in harsh, high temperature environments, such as power plants, turbine engines, and industrial manufacturing, could greatly improve the safety, reliability, and energy efficiency of these processes. The primary challenge in implementing this technology is the breakdown and degradation of thin films used in fabricating these devices when exposed to high temperatures >800 °C and oxidizing atmospheres. Zirconium diboride, hexagonal boron nitride, and amorphous alumina are candidate materials for use as thin film sensor components due to their high melting temperatures and stable phases. Zirconium diboride thin films have metallic-like electrical conductivity and remain …


Temperature Dependent Mechanical Behavior Of Solid Acids, Ryan Scott Ginder Dec 2016

Temperature Dependent Mechanical Behavior Of Solid Acids, Ryan Scott Ginder

Doctoral Dissertations

Existing literature data on the creep behavior of superprotonic solid acids, which is important for their use in fuel cell applications, is scant and unreliable. Steady state creep behavior for the model material system cesium hydrogen sulfate (CHS) is probed using nanoindentation and corroborated using uniaxial compression testing. To facilitate nanoindentation creep result interpretation, a radial flow model of power law indentation creep is developed. This model is compared with the related model from Bower, et. al. for several pre-existing literature datasets showing that the nonlinear, steady state creep law underpinning both appears valid for power law indentation creep.


Strategies For Controlling Bulk Heterojunction Morphology, Zach Daniel Seibers Dec 2016

Strategies For Controlling Bulk Heterojunction Morphology, Zach Daniel Seibers

Doctoral Dissertations

Organic photovoltaic devices have been extensively studied as a means to produce sustainable energy. However, the performance of organic-photovoltaic (OPV) devices is dependent upon a number of factors including the morphology of the active layer, device architecture, and processing conditions. Recent research has indicated that fullerenes in the bulk heterojunction are entropically driven to the silicon and air interfaces upon crystallization of P3HT, which occurs during thermal annealing. The first chapter of this research focuses on investigating the structure and function of end-tethered poly(3-hexylthiophene) chains to a transparent electrode as an anode buffer layer. Neutron reactivity reveals that these P3HT …


Evaluation Of Efficiency Of Various Materials To Shield From Radiation In Space Using The Monte Carlo Transport Code Called Fluka, Roman Savinov Dec 2016

Evaluation Of Efficiency Of Various Materials To Shield From Radiation In Space Using The Monte Carlo Transport Code Called Fluka, Roman Savinov

Master's Theses

The purpose of this study is to improve spacecraft shielding from radiation in space. It focuses on the evaluation of shielding efficiency of different materials. The efficiency of a shield is evaluated by the dose profile within the shield and the amount of dose absorbed by a target using the Monte Carlo transport code called FLUKA. The output of this code is validated by recreating the experiments from published papers and comparing the results. Once the FLUKA’s output is validated, the efficiency of sixteen materials, subject to SPE and GCR sources, are evaluated. The efficiency comparison is made by fixing …


Creation And Evaluation Of Polymer/Multiwall Carbon Nanotube Films For Structural Vibration Control And Strain Sensing Properties, Weiwei Lin Nov 2016

Creation And Evaluation Of Polymer/Multiwall Carbon Nanotube Films For Structural Vibration Control And Strain Sensing Properties, Weiwei Lin

FIU Electronic Theses and Dissertations

Multifunctional materials both with damping properties and strain sensing properties are very important. They promise to be more weight-efficient, and provide volume-efficient performance, flexibility and potentially, less maintenance than traditional multi-component brass-board systems.

The goal of this dissertation work was to design, synthesize, investigate and apply polyaniline/Multiwall carbon nanotube (PANI/MWCNT) and polyurethane (PU) /MWCNT composites films for structural vibration control and strain sensors using free layer damping methods and static and dynamic strain sensing test methods.

The PANI/MWCNT was made by in situ polymerization of PANI in the presence of MWCNT, then frit compression was used to make circular and …


Effect Of Thickness Of Anode Functional Layer On Electrochemical Performance Of Ni-Ce0.8gd0.2o1.9 Anode-Supported Solid Oxide Fuel Cells, Xueping Guo, Kaiping Peng, Chan Zheng, Wei Li, Wenzhe Chen Oct 2016

Effect Of Thickness Of Anode Functional Layer On Electrochemical Performance Of Ni-Ce0.8gd0.2o1.9 Anode-Supported Solid Oxide Fuel Cells, Xueping Guo, Kaiping Peng, Chan Zheng, Wei Li, Wenzhe Chen

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Study On Impact And Friction Properties Of Za45si3cu Alloy, Weihe Shi Oct 2016

Study On Impact And Friction Properties Of Za45si3cu Alloy, Weihe Shi

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Modelling The Evaporation Of Aluminum In Ti–6al–4v Alloy Melted With Electron Beam And Laser, Xuan Wang, Liang Wang, Liang S. Luo, Yan Q. Su, Xin Z. Li, Rui R. Chen, Jing J. Guo, Heng Z. Fu Oct 2016

Modelling The Evaporation Of Aluminum In Ti–6al–4v Alloy Melted With Electron Beam And Laser, Xuan Wang, Liang Wang, Liang S. Luo, Yan Q. Su, Xin Z. Li, Rui R. Chen, Jing J. Guo, Heng Z. Fu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Study On Criterion Of Fabricating Columnar Dendrite Structure Dz466 Superalloy Based On Lmc Process, Xun Sun Oct 2016

Study On Criterion Of Fabricating Columnar Dendrite Structure Dz466 Superalloy Based On Lmc Process, Xun Sun

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Numerical Modeling And Seismic Assessment Of Smart Isolation System For High-Speed Railway Rc Bridge Subjected To Near-Field Ground Motions, Lingkun Chen Oct 2016

Numerical Modeling And Seismic Assessment Of Smart Isolation System For High-Speed Railway Rc Bridge Subjected To Near-Field Ground Motions, Lingkun Chen

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Research Of Obtaining Of Composite Materials Based On Aluminum Matrix, Dmitry Kuis, Alexandr Volochko, Artem Shegidevich, Nikolay Svidunovich Oct 2016

Research Of Obtaining Of Composite Materials Based On Aluminum Matrix, Dmitry Kuis, Alexandr Volochko, Artem Shegidevich, Nikolay Svidunovich

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Research Of 3d Graphene Reinforced Aluminum Matrix Composites By Semisolid Processing, Mei Tang, Zhengbing Xu, Jianmin Zeng, Guoqiang He Oct 2016

Research Of 3d Graphene Reinforced Aluminum Matrix Composites By Semisolid Processing, Mei Tang, Zhengbing Xu, Jianmin Zeng, Guoqiang He

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


On The Lcf Behavior Of Cast Ni-Based Superalloy K3 Influenced By Eb-Pvd Nicocraly Coating At 1073 K, Tianquan Liang, Yili Wang, Yujie Li, Xiaoming Shen, Jianmin Zeng Oct 2016

On The Lcf Behavior Of Cast Ni-Based Superalloy K3 Influenced By Eb-Pvd Nicocraly Coating At 1073 K, Tianquan Liang, Yili Wang, Yujie Li, Xiaoming Shen, Jianmin Zeng

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Effect Of Er On Microstructure And Electrochemical Performance Of Al–Zn–In Anode, Zhengbing Xu Oct 2016

Effect Of Er On Microstructure And Electrochemical Performance Of Al–Zn–In Anode, Zhengbing Xu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Molecular Dynamics Studies Of The Adsorption Behavior Of Methyl 3-((2-Mercaptophenyl)Imino)Butanoate As Corrosion Inhibitors On Copper Surface, Jianlin Sun, Sang Xiong, Xudong Yan, Yang Xu Oct 2016

Molecular Dynamics Studies Of The Adsorption Behavior Of Methyl 3-((2-Mercaptophenyl)Imino)Butanoate As Corrosion Inhibitors On Copper Surface, Jianlin Sun, Sang Xiong, Xudong Yan, Yang Xu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Numerical Simulation Of Mechanical Wave Propagation During Solidification Of Zl205a Alloy, Wang Rujia, Wu Shi Ping, Chen Wei Oct 2016

Numerical Simulation Of Mechanical Wave Propagation During Solidification Of Zl205a Alloy, Wang Rujia, Wu Shi Ping, Chen Wei

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Effect Of Heat Input On Microstructure And Formability Of Dp980 Steel Welded Joints By Fiber Laser Welding, Qian Sun Oct 2016

Effect Of Heat Input On Microstructure And Formability Of Dp980 Steel Welded Joints By Fiber Laser Welding, Qian Sun

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Materials Processing For Building High Field Magnets, Ke Han Oct 2016

Materials Processing For Building High Field Magnets, Ke Han

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Numerical Simulation And Experiments Analysis On Stiffness Control Mechanism Of Hyperboloid Shallow Shells, Zhao Lihong, Yu Haiping, Xing Zhongwen, Lei Chengxi, Wu Bin Oct 2016

Numerical Simulation And Experiments Analysis On Stiffness Control Mechanism Of Hyperboloid Shallow Shells, Zhao Lihong, Yu Haiping, Xing Zhongwen, Lei Chengxi, Wu Bin

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


The Influence Of Welding Parameters On Initial Instability Dynamics During Solidification, Fengyi Yu, Yanhong Wei, Xiaohong Zhan Oct 2016

The Influence Of Welding Parameters On Initial Instability Dynamics During Solidification, Fengyi Yu, Yanhong Wei, Xiaohong Zhan

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Prediction Of The Graphite Morphology And Nodularity Based On The Quantitative Sample Solidification Cooling Curves, Han Ye, Chao Li, Qingyou Han, Xiangjie Yang Oct 2016

Prediction Of The Graphite Morphology And Nodularity Based On The Quantitative Sample Solidification Cooling Curves, Han Ye, Chao Li, Qingyou Han, Xiangjie Yang

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Physical Simulation Of The Effect Of Mechanical Vibration On Feeding Flow During Solidification Of Paste Alloy, Chen Wei, Wu Shi Ping, Wang Rujia Oct 2016

Physical Simulation Of The Effect Of Mechanical Vibration On Feeding Flow During Solidification Of Paste Alloy, Chen Wei, Wu Shi Ping, Wang Rujia

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Analysis Of Optimal Process Conditions And Mechanical Properties On Nanocomposites According To Structural Changes Of Halloysite Nanotubes, Yun-Hae Kim, Soo-Jeong Park, Antonio Norio Nakagaito Oct 2016

Analysis Of Optimal Process Conditions And Mechanical Properties On Nanocomposites According To Structural Changes Of Halloysite Nanotubes, Yun-Hae Kim, Soo-Jeong Park, Antonio Norio Nakagaito

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Influence Of Pressure Field In Melts On Microstructure Formation In Solidification Processing, Milan Rakita, Qingyou Han Oct 2016

Influence Of Pressure Field In Melts On Microstructure Formation In Solidification Processing, Milan Rakita, Qingyou Han

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Research On Photocatalytic Properties Of Tio2–Graphene Composites With Different Morphologies, Guang Hu, Jian Yang, Dong Zhao, Ying Chen, Yan Cao Oct 2016

Research On Photocatalytic Properties Of Tio2–Graphene Composites With Different Morphologies, Guang Hu, Jian Yang, Dong Zhao, Ying Chen, Yan Cao

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Ferromagnetic Shape Memory Alloy Microwires, Xuexi Zhang, Mingfang Qian, Hehe Zhang, Lin Geng Oct 2016

Ferromagnetic Shape Memory Alloy Microwires, Xuexi Zhang, Mingfang Qian, Hehe Zhang, Lin Geng

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Numerical Simulation Of Magnetic Properties Of Nano-Structured Nd2fe14b/Α-Fe Multi-Layered Composite Magnets, Lianxi Hu Oct 2016

Numerical Simulation Of Magnetic Properties Of Nano-Structured Nd2fe14b/Α-Fe Multi-Layered Composite Magnets, Lianxi Hu

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Temperature Filed Numerical Simulation Of Laser Welding For Ta15 Titanium Alloy By Coupling Thermal And Phase Transformation, Wenmin Ou, Yanhong Wei, Xiaohong Zhan, Gaoyang Mi Oct 2016

Temperature Filed Numerical Simulation Of Laser Welding For Ta15 Titanium Alloy By Coupling Thermal And Phase Transformation, Wenmin Ou, Yanhong Wei, Xiaohong Zhan, Gaoyang Mi

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Finite Element Simulation And Experimental Study Of The Effect Of Combining Ultrasonic Vibration With Ecap Process On Pure Aluminum 1050, Saeed Bagherzadeh, Yanfei Liu, Karen Abrinia, Qingyou Han Oct 2016

Finite Element Simulation And Experimental Study Of The Effect Of Combining Ultrasonic Vibration With Ecap Process On Pure Aluminum 1050, Saeed Bagherzadeh, Yanfei Liu, Karen Abrinia, Qingyou Han

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.


Research On The Impact Of Geometric Parameter On The Cross-Section Precision, Yang Hong Liang, Xing Zhong Wen, Hao Zhao Oct 2016

Research On The Impact Of Geometric Parameter On The Cross-Section Precision, Yang Hong Liang, Xing Zhong Wen, Hao Zhao

The 8th International Conference on Physical and Numerical Simulation of Materials Processing

No abstract provided.