We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
基于硅橡胶基可加工前驱体的低温烧结 CaZnSi<sub>2</sub>O<sub>6</sub> 玻璃陶瓷.
- Authors
李鹏虎; 金海云; 刘怀东; 王昭; 高乃奎
- Abstract
The applications of ceramics are limited by their high sintering temperatures and poor processability. The ceramizable silicone rubber composites were prepared using kilchoanite as a ceramic filler, low-melting-point glass frit as a flux, and nano SiO2 as a reinforcing agent. The CaZnSi2O6 glass ceramics were sintered at 1 000℃ using the ceramizable composites as machinable precursors. The effect of the mass fraction of silicone rubber and the content of glass frit on the mechanical properties of the ceramics was studied. The effect of Bi2O3 as a secondary flux on the microstructure, flexural strength and dielectric properties of the ceramics was investigated. The results show that the flexural strength of the ceramic samples increase first and then decrease with reducing the mass fraction of silicone rubber or increasing the content of glass frit. The maximum flexural strength of the ceramic samples without Bi2O3 sintered at 1 000℃ is 90.54 MPa, and the linear contraction is only 15%. A proper content of Bi2O3 not only improve the density of microstructure and increase the flexural strength to 110.48 MPa, but also decrease the tanδ of the ceramics at power frequency and high temperature obviously, and improve the breakdown strength of the ceramics at power frequency. The precursors in this study have a good processability and could complete the sintering of ceramics with different sizes and shapes.
- Subjects
SILICONE rubber; FLEXURAL strength; DIELECTRIC strength; DIELECTRIC properties; HIGH temperatures; CERAMICS
- Publication
Acta Materiae Compositae Sinica, 2023, Vol 40, Issue 8, p4813
- ISSN
1000-3851
- Publication type
Article
- DOI
10.13801/j.cnki.fhclxb.20221027.001