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 language | English |
|---|---|
| Pages (from-to) | 9515-9521 |
| Number of pages | 7 |
| Journal | Ceramics International |
| Volume | 45 |
| Issue number | 7 |
| DOIs | |
| State | Published - May 2019 |
Keywords
- Glass
- High temperature strength
- Polysilazane
- Polysiloxane
- TiB
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