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

Hui Zhang; Yong Jie Yan; Zheng Ren Huang; Xue Jian Liu; Dong Liang Jiang

doi:10.4028/www.scientific.net/KEM.368-372.1756

Paper Titles

Microstructure of ZrB₂–SiC Composite Fabricated by Spark Plasma Sintering
p.1743

Pressureless Sintering of Ultra-High Temperature ZrB₂-SiC Ceramics
p.1746

Oxidation Kinetics of ZrB₂-SiC Composites
p.1750

Oxidation of Short Carbon Fiber Reinforced ZrB₂-SiC Ceramics under Atmospheric and Oxyacetylene Torch Conditions
p.1753

Preparation and Characterization of Stable ZrB₂-Based Ultra-High Temperature Ceramics Slurry by Aqueous Gelcasting
p.1756

Reactive Synthesis and Mechanical Properties of ZrB₂-SiC-ZrC Composites
p.1758

Properties and Microstructure of an HfB₂-HfC-SiC Ultra High Temperature Ceramics
p.1761

Effect of Iron Additive on the Sintering Behavior of Hot-Pressed ZrC-W Composites
p.1764

Combustion Synthesis of Si₃N₄ from Si/NH₄Cl at Low Nitrogen Pressure
p.1767

HomeKey Engineering MaterialsKey Engineering Materials Vols. 368-372Preparation and Characterization of Stable...

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

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.