Dissolution and evolution of interfacial oxides improving the mechanical properties of solid state bonding joints

doi:10.1016/j.matdes.2018.08.003

CORC > 金属研究所 > 中国科学院金属研究所

	Dissolution and evolution of interfacial oxides improving the mechanical properties of solid state bonding joints
	Xie, BJ ; Sun, MY ; Xu, B 2; Wang, CY ; Li, DZ ; Li, YY
刊名	MATERIALS & DESIGN
	2018-11-05
卷号	157 页码:437-446
关键词	Hot compression bonding Interfacial oxides Mechanical properties TEM Interface healing
ISSN号	0264-1275
DOI	10.1016/j.matdes.2018.08.003
英文摘要	The mechanical properties of solid state bonding joints have always been greatly deteriorated due to surface oxide scales. Here, we report a method to completely heal solid state bonding joints with recovered mechanical properties by hot compression bonding and post-holding treatment. Using scanning electron microscopy and transmission electron microscopy, we discovered that the recovery of mechanical properties of the bonding joint is attributed to the dissolution and evolution of the interfacial oxides. While holding the joint at 1200 degrees C, the interfacial oxides (MnCr2O4) gradually decomposed. With the decomposed oxygen ions diffusing toward the matrix, oxide particles precipitated around both sides of the interface, forming the particle precipitation zone (PPZ). As the holding time increased, the width of the PPZ increased and the oxide precipitates in the PPZ transformed from MnCrxAl2-xO4 to MnxAl3-xO4 and finally to gamma-Al2O3, depending on the local oxygen activity. After holding for 24 h, the interfacial oxides completely decomposed and only a few nano-scale gamma-Al2O3 oxide precipitates remained dispersed far away from the bonding interface, leading to the recovery of the mechanical properties of the bonding joints. This recovery mechanism may be of great importance to the design and manufacture of high-quality heavy bonding joints. (C) 2018 Elsevier Ltd. All rights reserved.
学科主题	Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000443826600041
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79835]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xie, BJ,Sun, MY,Xu, B,et al. Dissolution and evolution of interfacial oxides improving the mechanical properties of solid state bonding joints[J]. MATERIALS & DESIGN,2018,157:437-446.
APA	Xie, BJ,Sun, MY,Xu, B,Wang, CY,Li, DZ,&Li, YY.(2018).Dissolution and evolution of interfacial oxides improving the mechanical properties of solid state bonding joints.MATERIALS & DESIGN,157,437-446.
MLA	Xie, BJ,et al."Dissolution and evolution of interfacial oxides improving the mechanical properties of solid state bonding joints".MATERIALS & DESIGN 157(2018):437-446.