2,861 Result(s)
within
Materials Science
Zheng-**ong **
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Article
Silicon Transport in Lateral Silicide Growth of CrSi2
Silicide formation and growth are studied in three geometries: conventional planar thin films, lateral diffusion couples formed by depositing metal layers on Si islands, and device geometry couples formed by d...
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Article
Degradation of Micron-Sized Silicide Lines on Polycrystalline Silicon
The thermal stability of silicide fine lines on undoped CVD polycrystalline silicon was investigated. Heat treatments were in vacuum at temperatures up to 950°C. We observed that fine silicide lines on undoped...
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Article
Nb Contacts to GaAs: Thermal Stability and Phase Formation
The applicability of Nb as a Schottky barrier on GaAs depends to a large extent on the thermal stability of the contacts. In this study, bulk diffusion couple and phase diagram studies in addition to thin film...
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Article
XPS study of La2CuO4 and La1.85Sr0.15CuO4
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Article
EXAFS study of glassy Fe79Si11B10: The effects of structural relaxation
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Article
Superconducting properties of mixtures of Y1Ba2Cu3O9−x and Y1.8Ba0.2Cu1O5−y
The superconducting properties of heat-treated mixtures of Y1Ba2Cu3O9−x (A) and Y1.8Ba0.2Cu1O5−y (B) have been studied. As the concentration of B increases, the Meissner effect decreases, while the resistance jum...
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Chapter
A Study on Longitudinal Compressive Strength of FRP-Composites
The failure mechanism of FRP-composites under longitudinal compressive stress is studied. Considering the effect of the initial curvature of the fibre and the yielding in shear of matrix, etc., a new formula t...
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Article
Interfacial reactions in the Nb/GaAs system
Solid-state reactions between niobium and gallium arsenide in both thin film and bulk forms were studied in the temperature range 400 to 1000 °C using transmission electron microscopy (TEM), metallography, sca...
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Article
Structural Phase Diagram and Superconducting Behavior of the Ba1-Xkxbio3 System
We have determined the crystal structures of five phases in the Bal-xKxBiO3 system for 0≤x≤0.5 and 10K≤T≤473K. Superconductivity occurs only in a cubic perovskite phase with the maximum Tc at the transition to an...
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Article
Superconducting and Structural Properties of the (Ba0.6K0.4) (Bi1-YSbY)O3 System
Single-phase samples of (Ba1-xKx)(Bi1-xSby)O3 have been synthesized over a limited compositional range using a two-step procedure: high-temperature firing in a low oxygen partial pressure followed by low-temperat...
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Article
Kinetics of Ordering in Fe3Al: Experiment
Alloys near the Fe3Al stoichiometry were prepared far from thermodynamic equilibrium by rapid solidification methods. These highly disordered materials were then annealed at low temperatures to develop B2 and D03
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Article
Hydrogen Bonding, and Microvoids in a-Si:H: a Proton NMR Study
The cw proton NMR spectra, spin lattice relaxation times Tx and free induction decay times T*2 were measured in various a-Si:H films deposited by rf-sputtering. All spectra exhibited broad and narrow components, ...
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Article
Characterization of a-Si:H,Cl and a-Sic:H Films Prepared by Electron Cyclotron Resonance Plasma
Microwave excited electron cyclotron resonance (ECR) plasmas have been used to fabricate a-Si:H,Cl and a-SiC:H films. By varying the absorbed microwave power, highly photoconductive a-Si:H,Cl films were obtain...
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Chapter
Fracture Toughness of Hybrid Short Fiber Composite
Based on the hypotheses of mechanics behavior of a hybrid short fiber composite, the fracture toughness of the material is determined with linear elastic fracture mechanics. The experiments are conducted on co...
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Article
Fabrication and microstructure-mechanical property relationships in Ce-TZPs
Ceria-stabilized tetragonal zirconia polycrystals(Ce-TZPs) have been fabricated via conventional sintering of commercially available electrofused and electrorefined CeO2-doped ZrO2 powder at 1550°C for various pe...
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Article
The crystallography of bainite in a medium-carbon steel containing Si, Mn, and Mo
A composite microstructure consisting of upper bainite laths and lower bainite plates, both carbide-free, plate (twinned) martensite, and carbon-enriched retained austenite, was produced by air-cooling a mediu...
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Article
A boundary element simulation of the unsteady motion of a sphere in a cylindrical tube containing a viscoelastic fluid
A boundary element method is used to simulate the unsteady motion of a sphere falling under gravity along the centreline of a cylindrical tube containing a viscoelastic fluid. The fluid is modelled by the uppe...
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Article
Thermal activation model of endurance limit
A thermal activation model of the endurance limit is proposed in the present study. It can quantitatively explain the effects of temperature and frequency on the endurance limit of metals at or below room temp...
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Article
Growth and characterization of Al2O3 insulator gate on p-InP and p-Si by metallorganic chemical vapour deposition at low temperatures
Metallorganic chemical vapour deposition of Al2O3 from Al(O-C3H7)3 via pyrolysis at low (∼280 °C) temperature was investigated with the goal of producing high quality Al2O3/p-InP (1 0 0) and Al2O3/p-Si (1 0 0) in...
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Article
Fabrication and microstructure-mechanical property relationships in Ce-TZPs
Ceria-stabilized tetragonal zirconia polycrystals(Ce-TZPs) have been fabricated via conventional sintering of commercially available electrofused and electrorefined CeO2-doped ZrO2 powder at 1550°C for various pe...
