Articles
  • Effect of sintering temperature on properties of lightweight porous ceramics prepared by foam impregnation method

  • Zhili Cuia, Shiming Xiaob, Xianli Luob, Yunxuan Liub, Ming Liub, Yuyun Zengb, Xiaoli Zhongb, Hong Zhengb, and Haifeng Guob,*

  • aSchool of Mechanics and photoelectric Physics, Anhui University of Science& Technology,, Huainan 232001, PR China
    bEngineering & Technology Research Center for Environmental Protection Materials and Equipment of Jiangxi Province, College of Materials and Chemical Engineering, Pingxiang University, Pingxiang 337055, PR China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this paper, cheap mineral materials were used as the base materials of lightweight porous ceramics prepared through foam impregnation method. The effect of the sintering temperature on the properties of the prepared porous ceramics was studied. The porous ceramic was mainly composed of amorphous silicon oxide, crystalline cordierite and mullite phases, and a small amount of alumina phase. As the sintering temperature increased, the porosity of porous ceramics gradually decreased from 94% to 92%, and the bulk density increased from 0.173 gcm-3 at 1100 ℃ to 0.194 gcm-3 at 1200 ℃. The best sintering temperature was 1180 ℃. The porosity of the porous ceramics sintered at 1180 ℃ was 92.14%, the volume weight was 0.189 gcm-3, the shrinkage rate was 15.80%, the compressive strength was 0.79 MPa, and the thermal conductivity was 0.295 Wm-1k-1. The lightweight porous ceramic has high porosity, low density and good thermal insulation, as well as low cost, having great potential for application in fields such as thermal insulation, adsorption, and environmental protection


Keywords: lightweight porous ceramic, sintering temperature, porosity, compressive strength, thermal insulation.

This Article

  • 2023; 24(5): 835-840

    Published on Oct 31, 2023

  • 10.36410/jcpr.2023.24.5.835
  • Received on Jul 17, 2023
  • Revised on Aug 17, 2023
  • Accepted on Sep 17, 2023

Correspondence to

  • Haifeng Guo

  • Engineering & Technology Research Center for Environmental Protection Materials and Equipment of Jiangxi Province, College of Materials and Chemical Engineering, Pingxiang University, Pingxiang 337055, PR China
    Tel : +86 799 6682008 Fax: +86 799 6682008

  • E-mail: guohaifeng720@163.com