Properties of silicon carbide ceramics from gelcasting and pressureless sintering

被引：60

作者：

Zhang, Jingxian ^{[1
]}

Jiang, Dongliang ^{[1
]}

Lin, Qingling ^{[1
]}

Chen, Zhongming ^{[1
]}

Huang, Zhengren ^{[1
]}

机构：

[1] Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

MATERIALS & DESIGN | 2015年 / 65卷

基金：

中国国家自然科学基金;

关键词：

Silicon carbide; Gelcasting; Pressureless sintering; Mechanical properties; MECHANICAL-PROPERTIES; MICROSTRUCTURE;

D O I：

10.1016/j.matdes.2014.08.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, dense silicon carbide ceramics were prepared by aqueous gelcasting and pressureless sintering using dextrin as the carbon source. The influence of carbon content and solid content on the microstructure and mechanical properties of green and as sintered SiC samples was studied. It was shown that the carbon content should be 1 wt% or higher for the fully densification of silicon carbide ceramics. The influence of solid content on the green density and the mechanical properties of SiC ceramics was studied. The optimal solid content with 1 wt% carbon as sintering additives is around 52 vol%. Results showed that dextrin is an effective carbon source for developing SiC ceramics by aqueous gelcasting and pressureless sintering method. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：12 / 16

页数：5

共 24 条

[1]

[Anonymous], 2006, 65692006 GBT AQSIQ P

[2]

[Anonymous], J EUR CERAM SOC, DOI DOI 10.1016/J.JEURCERAMSOC.2003.12.023

[3] Oxygen inhibition and the influence of pH on the inverse emulsion polymerization of the acrylic monomers [J].