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weichang木虫 (著名写手)
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15金币找到3篇Physics Reviews B文献
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（1） H. Van Swygenhoven and P. M. Derlet, Phys. Rev. B 64, 224105 (2001). （2） A. Hasnaoui, H. Van Swygenhoven and P. M. Derlet, Phys. Rev. B 66, 184112 (2002). （3）26. H. Van Swygenhoven, P. M. Derlet and A. Hasnaoui, Phys. Rev. B 66, 024101 (2002). 篇名我也不知道，我是从一篇论文的参考文献里找到上面3篇文献的信息。 相信如果学校里有征订Physics Reviews数据库的，查起来是很方便的，靠作者和起页码就能找到。 找到请发我邮箱。谢谢。 artherxwc@163.com。 找到后请回复：我找到了，已发往你邮箱（避免他人重复劳动），我会付你另外的9金币的。谢谢。 |
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Toby_John
铁杆木虫 (职业作家)
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weichang(金币+2,VIP+0):非常感谢。 4-13 10:38
weichang(金币+2,VIP+0):非常感谢。 4-13 10:38
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H. Van Swygenhoven and P. M. Derlet Paul Scherrer Institute, 5232 Villigen, Switzerland Received 8 March 2001; revised 21 June 2001; published 20 November 2001 Molecular-dynamics computer simulations of a model Ni nanocrystalline sample with a mean grain size of 12 nm under uniaxial tension is reported. The microscopic view of grain-boundary sliding is addressed. Two atomic processes are distinguished in the interfaces during sliding: atomic shuffling and stress-assisted free-volume migration. The activated accommodation processes under high-stress and room-temperature conditions are grain-boundary and triple-junction migration, and dislocation activity. 全文请到下面网盘下载： http://www.91files.com/?BW2F6O4BZOIJTUN0978J |
2楼2009-04-13 00:07:47
Toby_John
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weichang(金币+2,VIP+0):非常感谢 4-13 10:46
weichang(金币+2,VIP+0):非常感谢 4-13 10:46
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A. Hasnaoui, H. Van Swygenhoven, and P. M. Derlet Paul Scherrer Institute, Villigen, CH-5232, Switzerland Received 2 July 2002; published 27 November 2002 Large scale molecular dynamics (MD) simulations are used to simulate the plastic deformation of a nanocrystalline model Ni sample with an average grain size of 5 nm containing 125 grains at 800 K up to 4.0% plastic strain. For the first time in MD simulation, emerging shear planes involving several grain boundaries have been observed indicating cooperative plastic deformation activity between grains. It is found that three mechanisms have been involved in the development of such shear planes: grain-boundary migration, continuity of shear plane via intragranular slip, and rotation and coalescence of grains. 全文请到下面网盘下载： http://www.91files.com/?BHJLNRD14UCBWMCN62DC |
3楼2009-04-13 00:11:13
Toby_John
铁杆木虫 (职业作家)
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weichang(金币+2,VIP+0):非常感谢。 4-13 10:49
weichang(金币+2,VIP+0):非常感谢。 4-13 10:49
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H. Van Swygenhoven, P. M. Derlet, and A. Hasnaoui Paul Scherrer Institute, Villigen, CH-5232, Switzerland Received 22 February 2002; published 24 June 2002 The present work deals with the atomic mechanism responsible for the emission of partial dislocations from grain boundaries (GB’s) in nanocrystalline metals. It is shown that in 12 and 20 nm grain size samples GB’s containing GB dislocations can emit a partial dislocation during deformation by local atomic shuffling and stress-assisted free volume migration. The free volume is often emitted or absorbed in a neighboring triple junction. It is further suggested that the degree of delocalization surrounding the grain boundary dislocation determines whether atomic shuffling can associate displacements into the Burgers vector necessary to emit a partial dislocation. Temporal analysis of atomic configurations during dislocation emission indicates that creation and propagation of the partial might be separate processes. 全文请到下面网盘下载 http://www.91files.com/?2O8SQI707GP073Q9O1LP |
4楼2009-04-13 00:13:05
weichang
木虫 (著名写手)
prince_of_persia
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5楼2009-04-13 10:55:55