Results 191 to 200 of about 17,880 (239)

Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation

Nature, 2017
Next-generation high-performance structural materials are required for lightweight design strategies and advanced energy applications. Maraging steels, combining a martensite matrix with nanoprecipitates, are a class of high-strength materials with the potential for matching these demands.
Jiang, S., Wang, H., Wu, Y., Liu, X., Chen, H., Yao, M., Gault, B., Ponge, D., Raabe, D., Hirata, A., Chen, M., Wang, Y., Lu, Z.   +12 more
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O-lattice analyses of interfacial misfit. I. General considerations

Philosophical Magazine A, 1993
Abstract Misfits between lattice points of intersecting crystals and between corresponding lattice planes are analysed using O-lattice constructions referred to both direct and reciprocal spaces. O-lattice planes are described by the same expression as the ‘Moire planes’ formed by the mismatch of correlated planes, which facilitates the study of the O ...
W.-Z. Zhang, G. R. Purdy
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Influence of lattice misfit on heterojunction bipolar transistors with lattice-mismatched InGaAs bases

Journal of Applied Physics, 1988
AlGaAs/InGaAs/GaAs heterojunction bipolar transistors (HBTs) with lattice-mismatched InGaAs bases have been studied for determining the effect of misfit defects on device performance. Defect structures were investigated using scanning cathodoluminescence and transmission electron microscopy.
Y. Ashizawa, S. Akbar, W. J. Schaff, L. F. Eastman, E. A. Fitzgerald, D. G. Ast   +5 more
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Thermodynamic properties and lattice misfit of Ir-based superalloys

Intermetallics, 2013
Abstract First principles calculation reveals that the temperature-dependent heat capacities of Ir and four Ir3X (X = Ti, Nb, Zr, and Hf) phases at a certain temperature are very close to each other due to their similar densities of states of phonons, and for each phase, the difference between CP and CV is also very small.
C.P. Liang, H.R. Gong
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The role of lattice misfit in epitaxy

Critical Reviews in Solid State and Materials Sciences, 1978
Abstract Epitaxy is the phenomenon in which the orientation of a crystal 0 which grows on a crystalline substrate S, usually different from 0, is related to that of S, even though their normal lattices do not match at their common interface. Apart from its fundamental interest, epitaxy is important in view of its application in the fabrication of ...
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Morphologies of epitaxial islands on a lattice-misfitted substrate

Chinese Physics B, 2008
Under certain growth conditions for systems with a film/substrate lattice misfit, the deposited material is known to aggregate into island-like shapes. We have obtained an analytical expression of the total free energy, which consists of strain energy, surface energy and interfacial energy of a coherent island/substrate system, and the change of ...
Wang Jian-Ping, Zhou Wang-Min, Wang Chong-Yu, Yin Shu-Yuan   +3 more
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Lattice Misfit and Decomposition in Ni-Al-Mo Alloys

MRS Proceedings, 1989
ABSTRACTThe effect of lattice mismatch δ between the γ-matrix and γ'-precipitates on the decomposition process of Ni-Al-Mo alloys has been investigated. The results show that for δ = 0 spherical precipitates are formed without any orientational correlation. For δ > 0 non-spherical particles, aligned along <100>, are produced.
Hector Calderon, Gernot Kostorz
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Heteroepitaxy of Large-Misfit Systems: Role of Coincidence Lattice

Crystal Research and Technology, 2000
We present a detailed study about the epitaxial growth of various modern materials systems with large lattice misfit to GaAs substrates. The epitaxial alignment during the initial stage of growth and the misfit accommodation process are determined by the particular interface structures which we have investigated by high-resolution transmission electron
A. Trampert, K.H. Ploog
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Phase diagram of a model alloy with lattice misfit

Physica A: Statistical Mechanics and its Applications, 2000
Abstract The influence of elastic interactions on the phase diagram of a two-dimensional model binary alloy with antiferromagnetic nearest and ferromagnetic next-nearest-neighbor-type interactions is studied by Monte Carlo simulations and finite size scaling techniques.
D Fischer, P Nielaba
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Critical Misfits for Lattice-Matched Strained Monolayers

1988
Epitaxial thin layers or multilayers can now be grown with a high degree of perfection using ultra high vacuum evaporation techniques. Although it is still in general difficult to predict which material can be grown onto a particular substrate, a number of qualitative guidelines may be extracted from existing theories.
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