剑桥大学出版社期刊
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作者:... Zehui Du , Christopher A. Schuh , Chee Lip Gan
来源:[J].MRS Communications(IF 1.25), 2017, Vol.7 (4), pp.747-754
摘要:Shape memory ceramics show potential for energy damping and actuation applications. In particular, small-scale structures of zirconia-based ceramics demonstrate significantly enhanced shape memory and superelastic properties compared with their bulk counterparts, mainly because a...
作者:Arvind R. Kalidindi , Christopher A. Schuh
来源:[J].Journal of Materials Research(IF 1.713), 2017, Vol.32 (11), pp.1993-2002
摘要:Grain boundary segregation can reduce the driving force for grain growth in nanocrystalline materials and help retain fine grain sizes. However, grain boundary segregation is enthalpically driven, and so a stabilized nanocrystalline state should undergo a disordering process as t...
作者:Tongjai Chookajorn , Mansoo Park , Christopher A. Schuh
来源:[J].Journal of Materials Research(IF 1.713), 2015, Vol.30 (2), pp.151-163
摘要:Grain boundary (GB) segregation can markedly improve the stability of nanostructured alloys, where the fraction of GB sites is inherently large. Here, we explore the concept of entropically supported GB segregation in alloys with a tendency to phase-separate and its role in ...
作者:Oliver K. Johnson , Christopher A. Schuh
来源:[J].Journal of Materials Research(IF 1.713), 2016, Vol.31 (9), pp.1171-1184
摘要:While materials design in the context of texture dependent properties is well developed, theoretical tools for microstructure design in the context of grain boundary sensitive properties have not yet been established. In the present work, we present an invertible relationship bet...
作者:Christopher A. Schuh , Corinne E. Packard , Alan C. Lund
来源:[J].Journal of Materials Research(IF 1.713), 2006, Vol.21 (3), pp.725-736
摘要:Technical issues surrounding the use of nanoindentation at elevated temperatures are discussed, including heat management, thermal equilibration, instrumental drift, and temperature-induced changes to the shape and properties of the indenter tip. After characterizing and man...
作者:Christopher A. Schuh , Alan C. Lund
来源:[J].Journal of Materials Research(IF 1.713), 2004, Vol.19 (7), pp.2152-2158
摘要:We propose a nucleation theory-based analysis for incipient plasticity during nanoindentation and predict the statistical distribution of rate-dependent pop-in events for many nominally identical indentations on the same surface. In the framework of stress-assisted, thermally act...
作者:Christopher A. Schuh , John S. Vetrano ...
来源:[J].Journal of Materials Research(IF 1.713), 2011, Vol.26 (11), pp.1341-1383
摘要:The material characterization toolbox has recently experienced a number of parallel revolutionary advances, foreshadowing a time in the near future when material scientists can quantify material structure evolution across spatial and temporal space simultaneously. This will ...
作者:Jose San Juan , Maria L. Nó , Christopher A. Schuh
来源:[J].Journal of Materials Research(IF 1.713), 2011, Vol.26 (19), pp.2461-2469
摘要:Shape memory alloys (SMA) undergo reversible martensitic transformation in response to changes in temperature or applied stress, resulting in the properties of superelasticity and shape memory. At present, there is high scientific and technological interest to develop these ...
作者:Tiffany D. Ziebell , Christopher A. Schuh
来源:[J].Journal of Materials Research(IF 1.713), 2012, Vol.27 (9), pp.1271-1284
摘要:Characterizing the residual stress of thick nanocrystalline electrodeposits poses several unique challenges due to their fine grain structure, thickness distribution, and matte surface. We use a three-dimensional profilometry-based approach that addresses each of these compl...
作者:Hidetoshi Somekawa , Christopher A. Schuh
来源:[J].Journal of Materials Research(IF 1.713), 2012, Vol.27 (9), pp.1295-1302
摘要:The effects of temperature and alloying elements on deformation in the high-strain-rate regime were investigated by testing fine-grained magnesium alloys with an average grain size of 2 ∼ 3 μm by a nanoindentation technique. The dynamic hardness measurements aligned well wit...

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