Search Results - "Dregia, S. A."

Homogeneous carbon doping of magnesium diboride by high-temperature, high-pressure synthesis by Susner, M. A., Bohnenstiehl, S. D., Dregia, S. A., Sumption, M. D., Yang, Y., Donovan, J. J., Collings, E. W.

“…We have used high-pressure, high-temperature synthesis at 1500–1700 °C and 10 MPa to create homogeneously C-substituted MgB2 from a B4C + Mg mixture. X-ray…”
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Grain growth in anisotropic systems: comparison of effects of energy and mobility by Kazaryan, A., Wang, Y., Dregia, S.A., Patton, B.R.

“…Grain growth in systems of anisotropic grain boundary energy and mobility is investigated by computer simulations in a two-dimensional textured polycrystalline…”
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Computer simulation of texture evolution during grain growth: effect of boundary properties and initial microstructure by Ma, N, Kazaryan, A, Dregia, S.A, Wang, Y

“…We investigate orientation selection during grain growth by computer simulation in two-dimension using the phase-field method. The model characterizes…”
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Solute segregation transition and drag force on grain boundaries by Ma, N., Dregia, S.A., Wang, Y.

“…We investigate solute segregation and transition at grain boundaries and the corresponding drag effect on grain boundary migration. A continuum model of grain…”
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Phase stability of bcc Zr in Nb/Zr thin film multilayers by Thompson, G.B., Banerjee, R., Dregia, S.A., Fraser, H.L.

“…A change in phase stability from hcp Zr to bcc Zr occurs in Nb/Zr multilayers when the bilayer thickness is reduced to the nanometer scale. This phase…”
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Segregation and wetting transition at dislocations by MA, N, SHEN, C, DREGIA, S. A, WANG, Y

“…We investigate solute segregation and wetting transition at dislocations and the corresponding drag effect on dislocation glide using a continuum model…”
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Polymorphic phase stability in thin multilayers by Dregia, S.A., Banerjee, R., Fraser, H.L.

“…A new model has been presented to account for structural stability in thin-film multilayers, based on classical thermodynamics of the competition between bulk…”
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Phase stability in Al/Ti multilayers by Banerjee, R., Zhang, X.-D., Dregia, S.A., Fraser, H.L.

“…Structural stabilities in thin-film Al/Ti multilayers have been studied using transmission electron microscopy. It is shown that models based on…”
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On the theory of grain growth in systems with anisotropic boundary mobility by Kazaryan, A., Patton, B.R., Dregia, S.A., Wang, Y.

“…We analyze grain growth kinetics in systems with anisotropic grain boundary mobility. In contrast to most previous studies of grain growth dynamics, we relax…”
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Epitaxial growth of magnesia and spinel on sapphire during incongruent reduction in molten magnesium by Kumar, P., Dregia, S. A., Sandhage, K. H.

“…The types and structures of oxide phases produced during the incongruent reduction of sapphire (single-crystal Al2O3) by molten magnesium were examined…”
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Experimental determination of the peritectic transition temperature of MgB2 in the Mg–B phase diagram by Bohnenstiehl, S.D., Susner, M.A., Dregia, S.A., Sumption, M.D., Donovan, J., Collings, E.W.

“…•We have created a high pressure, high temperature material synthesis apparatus.•This apparatus is programmable and capable of various thermal analysis…”
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Surface island formation with localized stresses by Boyne, A., Rauscher, M.D., Dregia, S.A., Wang, Y.

“…Motivated by recently reported experimental observations, the role of surface structures in the formation of surface islands by the…”
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Energy of (110) twist boundaries in Ag/Ni and its variation with induced strain by ALLAMEH, S. M, DREGIA, S. A, SHEWMON, P. G

“…The energy of (110) twist boundaries in the Ag/Ni system, as a function of twist angle, has been calculated using the embedded atom method (EAM). Two major…”
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Thermal analysis of MgB2 formation by BOHNENSTIEHL, S, DREGIA, S. A, SUMPTION, M. D, COLLINGS, E. W

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Erratum: “A comparison of pseudomorphic bcc phase stability in Zr/Nb and Ti/Nb thin film multilayers” [J. Mater. Res. 19, 707 (2004)] by Thompson, G B, Banerjee, R, Dregia, S A, Miller, M K, Fraser, H L

“…This article was originally published in [J. Mater. Res. 19, 707 (2004)] and was incorrectly printed. The correct version appears below…”
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A Comparison of Pseudomorphic Bcc Phase Stability in Zr/Nb and Ti/Nb Thin Film Multilayers by Thompson, G.B., Banerjee, R., Dregia, S.A., Miller, M.K., Fraser, H.L.

“…A series of Nb-rich Zr/Nb and Ti/Nb multilayers were sputter deposited. Upon a reduction in thickness, a pseudomorphic bcc phase was stabilized in the Zr and…”
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Morphological variations in flame-deposited diamond by Frey, E.A., Tamhane, A., Rebello, J.H.D., Dregia, S.A., Subramaniam, V.V.

“…An oxy-acetylene flame, impinging vertically upward on an Si(001) substrate, is systematically examined for morphological variations in the resulting diamond…”
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Stability of f.c.c. titanium in titanium/aluminum multilayers by Banerjee, Rajarshi, Dregia, Suliman A., Fraser, Hamish L.

“…Crystal structures of as-sputtered Ti/Al multilayers are studied with special emphasis on the formation of f.c.c.-Ti and the effect of coherency strains on…”
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Concurrent spinodal decomposition and surface roughening in thin solid films by Boyne, A., Dregia, S. A., Wang, Y.

“…A computational model based on the phase field method is developed to investigate the morphological evolution of a thin solid film undergoing concurrent…”
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Epitaxial pore-free gadolinia-doped ceria thin films on yttria-stabilized zirconia by RF magnetron sputtering by Ansari, Haris M., Rauscher, Michael D., Dregia, Suliman A., Akbar, Sheikh A.

“…A thin film of gadolinia-doped ceria (GDC) grown on (001) single crystal of yttria-stabilized zirconia (YSZ) was produced by RF magnetron sputtering using a…”
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