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The effect of crystal structure of SiO2 on the wettability of AgCuTi–SiO2f/SiO2 system

  • Q. Ma
  • , Z. R. Li
  • , H. W. Niu
  • , Z. Y. Wang
  • , J. Ba
  • , J. L. Qi*
  • , J. C. Feng
  • , P. He
  • , J. Ma
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Harbin Institute of Technology Weihai
  • Zhengzhou Research Institute of Mechanical Engineering

Research output: Contribution to journalArticlepeer-review

Abstract

Fused silica was root cause of poor wettability of SiO2f/SiO2. SiO2f/SiO2 was composed of SiO2 in different states, which mean crystallized SiO2 formed fused silica and amorphous SiO2 formed quartz fibers. Wetting results show with holding time increasing, wetting angle of AgCuTi-crystallized SiO2 decreased from 137° to 87° meaning poor wettability. Besides, Ti3O5 and Ti2O3 particles formed. While, wetting angle of AgCuTi-amorphous SiO2 decreased from 110° to 43° indicating good wettability. Cu3Ti3O reaction layer formed. Thus, the crystal structure of SiO2 determined reaction product in wetting interface, which was a dominating influence on the wettability of AgCuTi–SiO2f/SiO2 system.

Original languageEnglish
Pages (from-to)124-127
Number of pages4
JournalVacuum
Volume157
DOIs
StatePublished - Nov 2018

Keywords

  • Composite materials
  • Crystal structure
  • Fused silica
  • Quartz fibers
  • Wettability

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