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Bonding mechanism of ultrasonically soldered silica glasses using tin-titanium solder filler

  • Xiaowei Wu
  • , Zhuolin Li*
  • , Xiaoguo Song
  • , Hongjie Dong
  • , Xiaoyu Yang
  • , Yuanliang Li
  • , Shoujing Wei
  • , Junhong Fu
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Harbin Institute of Technology Weihai
  • Shandong Institute of Shipbuilding Technology

Research output: Contribution to journalArticlepeer-review

Abstract

In this work, the ultrasonic assisted active metal soldering of silica glasses was successfully achieved using Sn-2Ti solder filler at a low soldering temperature of 250 °C in ambient atmosphere. A nano-crystalline layer of R-TiO2 with an average thickness of 7.6 nm formed at the interface between silica glasses and Sn-2Ti solder filler, which verified that a sono-oxidation reaction has occurred during the ultrasonic assisted active metal soldering process. The soldered butt joints exhibited an average tensile strength of 25.3 MPa.

Original languageEnglish
Article number131490
JournalMaterials Letters
Volume310
DOIs
StatePublished - 1 Mar 2022

Keywords

  • Bonding
  • Fracture
  • Interface
  • Intermetallic compounds
  • Microstructure
  • Oxidation

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