Paper Title:

Preparation and Characterization of Fused Silica Micro-Powders and Ceramics

Periodical Advanced Materials Research (Volume 412)
Main Theme Chinese Ceramics Communications II
Edited by Cheng Zhang and Jin Hu
Pages 129-132
DOI 10.4028/www.scientific.net/AMR.412.129
Citation Jin Ye Niu et al., 2011, Advanced Materials Research, 412, 129
Online since November, 2011
Authors Jin Ye Niu, Zhi Wei Chen, Liu Feng, Zheng Min Li, Min Tan
Keywords Fused Silica, Lactic Acid Dispersant, Slip Casting
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Abstract

Fused silica micro-powders with D50 of 1.8μm were firstly prepared by ball milling. Effects of milling time on particle size distribution and microstructures of the powders were discussed. Then, the green compacts with volume density of 1.86g/cm3 was obtained by slip casting with lactic acid as dispersant. Effects of lactic acid content on apparent viscosity of the slurry, thickness and density of the green compacts were investigated. Finally, fused silica ceramics with thermal expansion coefficient of 0.56∙10-6/°C, bending strength of 64MPa and volume density of 1.94g/cm3 were prepared.