Coal Waste as a Promising Raw Material for the Production of Heat-Resistant Refractory β-Sialon Ceramics
- 作者: Kost L.1, Lebedeva L.1, Shpirt M.1
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隶属关系:
- Institute of Fossil Fuels
- 期: 卷 53, 编号 6 (2019)
- 页面: 357-361
- 栏目: Article
- URL: https://journals.rcsi.science/0361-5219/article/view/177010
- DOI: https://doi.org/10.3103/S0361521919060041
- ID: 177010
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The β- and 15R-sialons were obtained from coal waste (carbonaceous rocks) at the Institute of Fossil Fuels (IGI) for the first time in the world. Ceramics based on β-sialon powder made from carbonaceous rock by compression sintering possessed increased cracking resistance, as compared to that of known analogues, even when heated in a plasma flow at 2000°C. In this case, other characteristics of the ceramics, such as strength and thermal coefficient of linear expansion, are also in the acceptable ranges of characteristics for such materials. The full-scale tests of odd-shaped products at temperatures to 1420–1450°C did not cause destruction and cracking; this fact demonstrates the applicability of carbonaceous rocks of a certain composition as raw materials for the production of heat-resistant refractory nitride ceramics based on β-sialon. Technical requirements imposed on the composition of carbonaceous rocks suitable for the production of β-sialon found in the course of this study and technical characteristics of β- and 15R-sialon ceramics obtained from carbonaceous rocks are reported.
作者简介
L. Kost
Institute of Fossil Fuels
编辑信件的主要联系方式.
Email: lyudmilakost@rambler.ru
俄罗斯联邦, Moscow, 119071
L. Lebedeva
Institute of Fossil Fuels
Email: Shpirt@yandex.ru
俄罗斯联邦, Moscow, 119071
M. Shpirt
Institute of Fossil Fuels
编辑信件的主要联系方式.
Email: Shpirt@yandex.ru
俄罗斯联邦, Moscow, 119071