Evaluation of interfacial fracture strength in micro-components with different free-edge shape

Evaluation of interfacial fracture strength in micro-components with different free-edge shape

The strength against interfacial fracture nucleation from the free-edge of micro-scale bimaterial cantilevers consisting of silicon (Si) and copper (Cu) components is evaluated by using specimens with different free-edge shape. The fracture strength of Type A (90°/90° edge) specimens represented by...

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Autores principales: Yoshimasa TAKAHASHI, Kazuya AIHARA, Itaru ASHIDA, Kimitaka HIGUCHI, Yuta YAMAMOTO, Shigeo ARAI, Shunsuke MUTO, Nobuo TANAKA
Formato: article
Lenguaje:EN
Publicado: The Japan Society of Mechanical Engineers 2016
Materias:
micro-components
silicon
copper
interface
free-edge
fracture nucleation
strength
fracture mechanics
hydrogen embrittlement
Mechanical engineering and machinery
TJ1-1570
Acceso en línea:https://doaj.org/article/027c913eac234f478ef92a92a36b7d30
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spelling oai:doaj.org-article:027c913eac234f478ef92a92a36b7d302021-11-26T06:58:32ZEvaluation of interfacial fracture strength in micro-components with different free-edge shape2187-974510.1299/mej.16-00108https://doaj.org/article/027c913eac234f478ef92a92a36b7d302016-08-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/6/3_16-00108/_pdf/-char/enhttps://doaj.org/toc/2187-9745The strength against interfacial fracture nucleation from the free-edge of micro-scale bimaterial cantilevers consisting of silicon (Si) and copper (Cu) components is evaluated by using specimens with different free-edge shape. The fracture strength of Type A (90°/90° edge) specimens represented by the near-edge stress normal to the interface (σθθ) is significantly scattered. On the other hand, the fracture strength of Type B (135°/135° edge) specimens represented by the stress intensity factor of σθθ shows very good agreement. This indicates that the introduction of a sharp wedge at the free-edge is an effective measure for the evaluation of fracture strength that is unique to the interface. Such characteristics are also found to be unaltered by the plasticity of Cu component. The advantage of Type B specimen is then applied to the evaluation of the effect of gaseous environment on the fracture strength. There is no eminent reduction of strength value in hydrogen (H2)-containing gas, indicating that Si/Cu interface is relatively resistant against hydrogen embrittlement.Yoshimasa TAKAHASHIKazuya AIHARAItaru ASHIDAKimitaka HIGUCHIYuta YAMAMOTOShigeo ARAIShunsuke MUTONobuo TANAKAThe Japan Society of Mechanical Engineersarticlemicro-componentssiliconcopperinterfacefree-edgefracture nucleationstrengthfracture mechanicshydrogen embrittlementMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 6, Pp 16-00108-16-00108 (2016)
institution DOAJ
collection DOAJ
language EN
topic micro-components
silicon
copper
interface
free-edge
fracture nucleation
strength
fracture mechanics
hydrogen embrittlement
Mechanical engineering and machinery
TJ1-1570
spellingShingle micro-components
silicon
copper
interface
free-edge
fracture nucleation
strength
fracture mechanics
hydrogen embrittlement
Mechanical engineering and machinery
TJ1-1570
Yoshimasa TAKAHASHI
Kazuya AIHARA
Itaru ASHIDA
Kimitaka HIGUCHI
Yuta YAMAMOTO
Shigeo ARAI
Shunsuke MUTO
Nobuo TANAKA
Evaluation of interfacial fracture strength in micro-components with different free-edge shape
description The strength against interfacial fracture nucleation from the free-edge of micro-scale bimaterial cantilevers consisting of silicon (Si) and copper (Cu) components is evaluated by using specimens with different free-edge shape. The fracture strength of Type A (90°/90° edge) specimens represented by the near-edge stress normal to the interface (σθθ) is significantly scattered. On the other hand, the fracture strength of Type B (135°/135° edge) specimens represented by the stress intensity factor of σθθ shows very good agreement. This indicates that the introduction of a sharp wedge at the free-edge is an effective measure for the evaluation of fracture strength that is unique to the interface. Such characteristics are also found to be unaltered by the plasticity of Cu component. The advantage of Type B specimen is then applied to the evaluation of the effect of gaseous environment on the fracture strength. There is no eminent reduction of strength value in hydrogen (H2)-containing gas, indicating that Si/Cu interface is relatively resistant against hydrogen embrittlement.
format article
author Yoshimasa TAKAHASHI
Kazuya AIHARA
Itaru ASHIDA
Kimitaka HIGUCHI
Yuta YAMAMOTO
Shigeo ARAI
Shunsuke MUTO
Nobuo TANAKA
author_facet Yoshimasa TAKAHASHI
Kazuya AIHARA
Itaru ASHIDA
Kimitaka HIGUCHI
Yuta YAMAMOTO
Shigeo ARAI
Shunsuke MUTO
Nobuo TANAKA
author_sort Yoshimasa TAKAHASHI
title Evaluation of interfacial fracture strength in micro-components with different free-edge shape
title_short Evaluation of interfacial fracture strength in micro-components with different free-edge shape
title_full Evaluation of interfacial fracture strength in micro-components with different free-edge shape
title_fullStr Evaluation of interfacial fracture strength in micro-components with different free-edge shape
title_full_unstemmed Evaluation of interfacial fracture strength in micro-components with different free-edge shape
title_sort evaluation of interfacial fracture strength in micro-components with different free-edge shape
publisher The Japan Society of Mechanical Engineers
publishDate 2016
url https://doaj.org/article/027c913eac234f478ef92a92a36b7d30
work_keys_str_mv AT yoshimasatakahashi evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
AT kazuyaaihara evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
AT itaruashida evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
AT kimitakahiguchi evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
AT yutayamamoto evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
AT shigeoarai evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
AT shunsukemuto evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
AT nobuotanaka evaluationofinterfacialfracturestrengthinmicrocomponentswithdifferentfreeedgeshape
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