EFFECTS OF THE SiO₂-B₂O₃ RATIO ON THE STRUCTURE AND PROPERTIES OF B₂O₃-ZnO-SiO₂-BaO-LiO₂-Al₂O₃-Na₂O-CaO PARENT GLASS AND GLASS-CERAMICS
| Autor: | Zijie Li, Feng He, Zheng Congcong, Yan Dongyang, Zhang Bing, Cao Xiuhua, Ren Haidong, Xie Junlin |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Ceramics-Silikáty, Vol 66, Iss 1, Pp 104-112 (2022) |
| Druh dokumentu: | article |
| ISSN: | 0862-5468 1804-5847 |
| DOI: | 10.13168/cs.2022.0005 |
| Popis: | The experimental results show that a decrease in the SiO₂/B₂O₃ ration reduced the glass transition temperature, but had little effect on the crystallisation temperature. The basic glass powder pressed into strip samples were sintered at a temperature of 630 to 690 °C. With a decrease in the SiO₂/B₂O₃ ratio, the structure of glass and glass-ceramics changed, and the same change also occurred in the crystal phase in the glass-ceramics. When the SiO₂/B₂O₃ ratio was 0.29, the glass-ceramics sintered at 670 °C reached the best properties, including the bending strength, density, and acid resistance. When the SiO₂/B₂O₃ ratio was 0.29, the coefficient of thermal expansion of the glass-ceramics sintered at different temperatures were maintained in the range of 6.3∼7.2×10-6 K-1. |
| Databáze: | Directory of Open Access Journals |
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