Paper Title:

Preparation and Characterization of Stable ZrB2-Based Ultra-High Temperature Ceramics Slurry by Aqueous Gelcasting

Periodical Key Engineering Materials (Volumes 368 - 372)
Main Theme High-Performance Ceramics V
Edited by Wei Pan and Jianghong Gong
Pages 1756-1757
DOI 10.4028/www.scientific.net/KEM.368-372.1756
Citation Hui Zhang et al., 2008, Key Engineering Materials, 368-372, 1756
Online since February, 2008
Authors Hui Zhang, Yong Jie Yan, Zheng Ren Huang, Xue Jian Liu, Dong Liang Jiang
Keywords Gelcasting, Slurry, Zirconium Diboride
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Abstract

Stable ZrB2-based ultra-high temperature ceramic slurries were prepared and characterized with a solid content 40 vol% by aqueous gelcasting which was suitable to form high quality and complexshaped ceramic parts. In the present work, Ammonium Citrate Tribasic (ACT) was used as the dispersant. The properties of ZrB2 slurry, and the influencing factors were investigated by conventional techniques such as sedimentation tests, particle size distribution measurements, electrokinetic measurements and rheological analysis. High solids loading and low viscosity slurry was obtained by controlling the optimal conditions for the ZrB2-based ceramic powders.