Sintering characteristics of environmentally friendly porous ceramics prepared by self-sintering of desert sand

被引：5
作者：
Wang, Wenbin [1 ]
Wang, Zidong [1 ]
Wang, Shigang [1 ]
Shi, Zhiming [1 ]
机构：
[1] Inner Mongolia Univ Technol, Sch Mat Sci & Engn, Hohhot 010051, Peoples R China
来源：
MATERIALS LETTERS | 2022年 / 324卷
关键词：
Ceramics; Microstructure; Phase transformation; Porous materials; Sintering; PHASE-TRANSFORMATION; QUARTZ;
D O I：
10.1016/j.matlet.2022.132694
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Natural desert sand has particle shapes and a relatively high content of silica and other useful chemical compositions. Porous quartz ceramics were prepared by self-sintering of three kinds of screened desert sands, and the composition, particle size, phase transformation, microstructure and properties of the ceramics were investigated. Experimental results showed that the particle size of desert sand was dominant in sintering of ceramics and the gradation changed the ratio of silica to feldspar phases, which was increased with an increase in particle size. The low-melting feldspar phases were primary to generate self-sinterability. The obtained ceramics with open, open-closed and closed pores can be prepared from large, medium and small sand particles, respectively.
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页数：5
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