材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
β-窒化ケイ素単結晶のせん断変形特性の分子動力学法による研究
尾方 成信北川 浩広崎 尚登安本 弘昭
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2000 年 49 巻 3 号 p. 257-262

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The deformation properties of β-silicon nitride under shear loading are investigated by molecular dynamics simulation using a three body empirical potential. Two cases of shear deformation, {1010} ‹0001› and {1010} ‹1210›, are analyzed, which are reported as the slip systems on the basis of experimental observation. The ideal shear strength of the β single crystal along these directions is somewhat smaller than the one of α-silicon nitride single crystal reported previously. Slip deformations take place in narrow bands, thickness of which are very thin. For the {1010} ‹0001› case, itis almost equal to the distance between the nearest neighbor atoms and for the {1010} ‹1210› case about 0.4nm.

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