Results 271 to 280 of about 90,850 (290)

Oxide Precipitate Nucleation via Coherent Seed -Oxide Phases

ECS Meeting Abstracts, 2006
Abstract not Available.
Gudrun Kissinger, Jarek Dabrowski
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Preferential growth of coherent precipitates at grain boundary

Materials Letters, 2020
Abstract Coherent precipitates are known to be more effective than their incoherent counterparts in pinning grain boundaries and impact the properties of alloys. In the present work, we showed the location preference of coherent M23C6 and NiAl precipitates formed at the grain boundaries in an Al-containing austenitic steel.
Hongyuan Wen, Bingbing Zhao, Xianping Dong, Feng Sun, Lanting Zhang   +4 more
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Formation of coherent precipitates of platinum in sapphire

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1999
Abstract The surface region of sapphire was modified by implantation of Pt ions. Single crystalline α-Al 2 O 3 samples were implanted at room temperature with 160 keV Pt ions to fluences from 1 × 10 14 to 5 × 10 16 Pt + /cm 2 . For doses up to 10 15 Pt + /cm 2 , 80% of the implanted ions occupy substitutional sites in the Al sublattice.
E Alves, R.C da Silva, O Conde, M.F da Silva, J.C Soares   +4 more
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Coherency-induced morphological instability in NiAl-type precipitate

Proceedings, annual meeting, Electron Microscopy Society of America, 1993
In many commercial alloys, phase transformation involves nucleation and growth of coherent precipitates. The elastic strain fields around individual coherent precipitates and the overlap of such strain fields constitute an “elastically constrained system” in which the precipitates exhibit shape transition and anomalous coarsening behavior.
G. Ghosh, G. B. Olson, M. E. Fine
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Coherent predictand areas for spatially coherent precipitation downscaling

2013
Statistical downscaling aims at finding relationships between local precipitation (predictand) and large-scale predictor fields, in various contexts, from medium-term forecasting to climate change impact studies. For distributed hydrological modelling the downscaled precipitation spatial fields have furthermore to be coherent over possibly large river ...
Radanovics, S., Vidal, Jean-Philippe, Sauquet, Eric, Ben Daoud, A., Bontron, G.   +4 more
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Coherent precipitation of copper in Super304H austenite steel

Materials Science and Engineering: A, 2013
Abstract The precipitation behavior of copper-rich phase in an austenitic stainless steel and the interface structure between the precipitates and the matrix have been investigated combining transmission electron microscopy and coarsening analysis. The fine dispersed Cu precipitates were spherical and highly stable in the austenite matrix, with the ...
J.W. Bai, P.P. Liu, Y.M. Zhu, X.M. Li, C.Y. Chi, H.Y. Yu, X.S. Xie, Q. Zhan   +7 more
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Semi-coherent precipitation of silicon nitride in silicon

Proceedings, annual meeting, Electron Microscopy Society of America, 1988
Implantation of nitrogen into silicon, followed by high-temperature annealing causes formation of silicon nitride. At high doses, continuous polycrystalline layers are formed, while at lower doses, discrete precipitates are formed. These precipitates show preferred orientation with the silicon matrix. This paper presents the results of characterization
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A model for coherency strengthening of large precipitates

Scripta Materialia, 2014
In precipitation strengthening, the lattice misfit between precipitate and matrix produces a strain field around precipitates, which impedes dislocation movement. In this paper, a strengthening model is presented, which delivers the stress increment associated with the strain field around large homogeneous spherical precipitates.
M.R. Ahmadi, E. Povoden-Karadeniz, B. Sonderegger, K.I. Öksüz, A. Falahati, E. Kozeschnik   +5 more
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Macroscale stress induced stabilization of coherent precipitates

Journal of Crystal Growth, 2022
R.M. Raghavendra, Anurag Jha, Ganesh Iyer, Arun Kumar, Anandh Subramaniam   +4 more
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Shape instability during precipitate growth in coherent solids

Acta Metallurgica et Materialia, 1995
Abstract The effect of coherent elastic strain on shape instabilities during growth of a single precipitate in an elastically anisotropic cubic system is examined. A general phenomenological field approach to phase transformation kinetics is employed.
Y. Wang, A.G. Khachaturyan
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