Preparation and property of porous calcium silicate ceramic by two‐step ultrafast high‐temperature sintering

Author:

Liu Qiang1,Guo Shichang1,Leng Senlin2ORCID,Zhang Hong1,Cao Zhenzhu1

Affiliation:

1. College of Chemical Engineering Inner Mongolia University of Technology Hohhot P. R. China

2. College of Material and Chemical Engineering Tongren University Tongren P. R. China

Abstract

AbstractPorous calcium silicate ceramic has been prepared by ultrafast high‐temperature process in several minutes. The effect of sintering current and starch content on the phase composition, pore structure, compressive strength, and air permeability have been investigated. Homogeneous pores can be formed during the fast decomposition of calcium silicate hydrate, calcium carbonate, and starch. The optimized composition shows the high compressive strength (over 7 MPa), porosity (60.8%), and air permeability (379.4 L/m2 s). Results showed that the ultrafast high‐temperature sintering method can achieve homogenous porous structure in much shorter time than conventional furnace sintering.

Publisher

Wiley

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