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Displaying 8101 - 8125 of 143816

Variational Methods for Microstructural Evolution

October 12, 2021
Author(s)
W Carter, J E. Taylor, John W. Cahn
The application of variational methods and gradient flows to principles of microstructural evolution are reviewed. For the cases considered in this paper, gradient flows specify a trajectory along with the free energy decreases most rapidly. The gradient

Vector-Valued Phase Field Model for Crystallization and Grain Boundary Formation

October 12, 2021
Author(s)
R Kobayashi, James A. Warren, W Carter
We propose a new model for calculation of the crystallization and impingement of many particles with differing orientations. Based on earlier phase field models, a vector order parameter is introduced, and thus orientation of crystal/disordered interfaces

Virial Coefficients of Mixtures

October 12, 2021
Author(s)
J H. Dymond, K N. Marsh, R C. Wilhoit, Michael D. Frenkel
This critical compilation of virial coefficients of mixtures is a sequel to The Virial Coefficients of Pure Gases and Mixtures, by J.H. Dymonand E.B. Smith (Oxford Universi Press, 1979) and a companion of Virial Coefficients of Gases and Gas Mixtures

Virtual Sensor Simulation Study of Flow During Resin Transfer Molding Process

October 12, 2021
Author(s)
S R. Kueh, S G. Advani, Richard~undefined~undefined~undefined~undefined~undefined Parnas
In any manufacturing environment, on-line sensing can play an important part in controlling the quality of the final product. Having a sensor embedded within the part itself is often the most effective means of monitoring its condition at various stages of

Viscous Flow Creep in Ceramics Containing Secondary Crystalline Phases

October 12, 2021
Author(s)
Q Jin, D S. Wilkinson, G C. Weatherly, William E. Luecke, Sheldon M. Wiederhorn
Experimental observations of the creep response of a Y 20 3-fluxed Si 3N 4 containing secondary crystalline phases(SP)are presented.The widths of grain-boundary amorphous films before and after creep have been characterized by using transmission electron

Visualization and Quantification of Forced In-Plane Flow Through Deformable Porous Media

October 12, 2021
Author(s)
H L. Friedman, R A. Johnson, V Gussev, A V. Neimark, D R. Salem, Richard~undefined~undefined~undefined~undefined~undefined Parnas
Fluid flow in liquid molding processes and in other applications involving porous media is often characterized with a permeability tensor and modeled by d'Arcy's law. The permeability is a sensitive function of pore structure which, in deformable materials

Volumetric and Size Characterization of Void Morphologies in Thermally Sprayed Metallic Deposits Using Scattering Techniques

October 12, 2021
Author(s)
T Keller, W. Wagner, J Ilavsky, Andrew J. Allen, N Margadant, S Siegmann, J Pisacka, G Barbezat, R Enzl
The complex void microstructure of thermally sprayed deposits may be approximated by three major void syste(interlamellar pores, intralamellar cracks, and volumetric globular voids), each with different volume fractions,anisotropies, sizes and shapes. This

Wear Analysis of UHMWPE Using a Load Sum Method

October 12, 2021
Author(s)
M C. Shen, Stephen M. Hsu, John A. Tesk, A Christou
An accelerated wear test pro-cedure has been developed for wear screening of ultra-high molecular weight polyethylene (UHMWPE) using a new wear tester. Results showed that the test procedure was able to discriminate known wear level samples within seven
Displaying 8101 - 8125 of 143816
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