Characterization of anorthite-based porcelain prepared by using wollastonite as a calcium source
- Resource Type
- Article
- Authors
- Shumei Wang; Xiaoling Qi; Jilin Hu; Xiuying Tian
- Source
- Journal of Ceramic Processing Research, 16(3), pp.361-365 Jun, 2015
- Subject
- 재료공학
- Language
- English
- ISSN
- 2672-152X
1229-9162
The porcelain based on anorthite (CaO • Al2O3 • 2SiO2) has been developed using wollastonite (CaO • SiO2) as a calcium source. The slip casting was applied to obtain green body with high-strength. The sintering behaviors of the green specimens were evaluated by determining linear shrinkage, water absorption, bulk density and flexural strength. It was found that the anorthite porcelain fired at 1215 o C had excellent technical properties such as water absorption: 0.00% and flexural strength: 109.5 MPa. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis results showed the high flexural strength was due to the densification of microstructures and the formation of high crystalline content in the porcelain body. In addition, thermal expansion performance and appearance quality of the final product were discussed.