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A study on relationship between orientation evolution and coarsening behavior of Cu6Sn5 grains formed on polycrystalline cu substrate

  • Ming Yang
  • , Xin Ma
  • , Ming Yu Li*
  • *Corresponding author for this work
  • Harbin Institute of Technology Shenzhen
  • Yik Shing Tat Industrial Co., Ltd.

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The coarsening behavior of Cu6Sn5 grains formed at the Sn37Pb/Polycrystalline Cu interface is investigated in terms of their orientation evolution during solid-state aging. The results show that the coarsening behavior of the interfacial Cu6Sn5 grains during solid-state aging are quite different from that during liquid-state soldering. The occurrence of the coarsening in the solid-sate reaction is caused by the different surface energies between two adjacent grains. In addition, the texture morphologies of the interfacial grains affect their coarsening rates. In particular, the interfacial Cu6Sn5 grains formed at 200 °C exhibit a texture with the [0001] direction normal to the interface after 16 days of aging at 150 °C, and the formation of this texture accelerates the coarsening process of the interfacial Cu6Sn5 grains.

Original languageEnglish
Title of host publicationMaterial Science and Environmental Engineering
PublisherTrans Tech Publications
Pages64-69
Number of pages6
ISBN (Print)9783038351009
DOIs
StatePublished - 2014
Externally publishedYes
Event2nd International Conference on Material Science and Environmental Engineering, MSEE 2014 - Changsha, Hunan, China
Duration: 21 Mar 201423 Mar 2014

Publication series

NameAdvanced Materials Research
Volume937
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Material Science and Environmental Engineering, MSEE 2014
Country/TerritoryChina
CityChangsha, Hunan
Period21/03/1423/03/14

Keywords

  • Coarsening
  • Crystal orientation
  • Interfacial reaction
  • Polycrystalline Cu

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