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Effect of PSO and TiB 2 content on the high temperature adhesion strength of SiBCNO ceramic

  • Xin'gang Luan
  • , Sen Chang
  • , Rong Yu
  • , Yun Zou
  • , Ralf Riedel
  • , Laifei Cheng
  • Northwestern Polytechnical University Xian
  • Technische Universität Darmstadt
  • China National Nuclear Corporation

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

In the present work, SiBCNO-based ceramic as high temperature adhesives are fabricated by polymer derived ceramic route. The effect of polysiloxane (PSO) and TiB 2 on the microstructure and high temperature strength is studied, and the toughing effect of TiB 2 is discussed. The highest adhesion strength of the joint (S12) reached up to 18.95 MPa at room temperature and 12.3 MPa at 1000 °C in vacuum after pyrolysis at 1000 °C in air for 2 h. It is interesting to find that the crystallization of nano-SiO 2 reinforces the strength and thermal stability of glass phase with the addition of PSO, besides, the TiB 2 plays the important role in improving adhesion strength by bearing load and facilitating the formation of stable SiO 2 -B 2 O 3 -TiO 2 glass.

Original languageEnglish
Pages (from-to)9515-9521
Number of pages7
JournalCeramics International
Volume45
Issue number7
DOIs
StatePublished - May 2019

Keywords

  • Glass
  • High temperature strength
  • Polysilazane
  • Polysiloxane
  • TiB

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