Articles
  • Fabrication and characterization of a novel foam ceramic material based on coal gasification slags 

  • Hudie Yuan, Hongfeng Yin*, Yun Tang, Yalou Xin, Xilou Pu and Hao Zhang

  • Provincial Experimental Teaching Demonstration Center for Functional Materials, College of Materials Science & Engineering, Xi’an University of Architecture & Technology, 710055 Xi’an, China

Abstract

In this paper, the feasibility of recycling coal gasification slag by high temperature foaming process to fabricate foal ceramic insulation board has been investigated. Silicon carbide (SiC) was added as the foam agent, and the foaming mechanism was also discussed. The results showed that utilization rate of the coal gasification prepared to the foam ceramic new wall material was up to 77% and the best dosage of SiC was 3%. Moreover, the relatively optimum parameters were obtained at the sintering temperature of 1,160 ºC for 3h with 77% slags, 20% clay and 3% SiC. Furthermore, compression strength reaches 1.18 MPa, the bulk density and heat conductivity coefficient value are 0.21 g/cm3 and 0.05 W/(m·k), respectively.


Keywords: Foam ceramic, Walling material, Coal gasification slag; SiC, Heat conductivity coefficient

This Article

  • 2020; 21(6): 640-646

    Published on Dec 31, 2020

  • 10.36410/jcpr.2020.21.6.640
  • Received on Apr 3, 2020
  • Revised on Jun 19, 2020
  • Accepted on Jul 16, 2020

Correspondence to

  • Hongfeng Yin

  • Provincial Experimental Teaching Demonstration Center for Functional Materials, College of Materials Science & Engineering, Xi’an University of Architecture & Technology, 710055 Xi’an, China
    Tel : +86 29 82205245 Fax: +86 29 82205245

  • E-mail: yinhongfeng@xauat.edu.cn