Effect of h-BN on Sintering Behavior, Microstructures and Mechanical Properties of YAG Bulk Composites

Shi Bin Li; Jie Guang Song; Hong Ying Ru; Xiao Bo Bai

doi:10.4028/www.scientific.net/KEM.697.395

Paper Titles

Thermal Insulation Property of Nanostructured Alumina Coated Zirconia Thermal Barrier Coating
p.377

Effect of the Cooling Ways on the Properties and Microstructure of ZrO₂/ZrW₂O₈ Ceramic Composites
p.381

Influence of Temperature on the Order-Disorder Transition in Gd₂Zr₂O₇
p.386

Synthesis and Characterization of LaMgAl₁₁O₁₉ as Thermal Barrier Coatings Material
p.390

Effect of h-BN on Sintering Behavior, Microstructures and Mechanical Properties of YAG Bulk Composites
p.395

Synthesis and Characterization of Magnesium Aluminate Spinel Porous Ceramics by Novel Molten Salt Method
p.399

Preparation and Performance of Neutron Absorbing Dysprosium Oxide Ceramic
p.404

Characterization of SiO₂ Aerogel/SiO₂ Fiber Composites Prepared by Sol-Gel Method
p.409

Mechanically Strong and Hierarchical Porous Silica Ceramics via Gelcasting-Lyophilization
p.414

HomeKey Engineering MaterialsKey Engineering Materials Vol. 697Effect of h-BN on Sintering Behavior,...

Effect of h-BN on Sintering Behavior, Microstructures and Mechanical Properties of YAG Bulk Composites

Abstract:

The shell structure YAG composite powders with different volume fraction (15, 20 and 25vol%) micro h-BN have been prepared by co-precipitation process. The bulk composites were performed by pressure sintering at 1600°C under a pressure of 30MPa in vacuum. The mechanical properties (elastic modulus, hardness, and fracture toughness) and relative density of the composites were investigated detailedly. Furthermore, phase composition and microstructure of the composites were analyzed thoroughly by X-ray diffraction, scanning electron microscopy. Meanwhile, good machinability is maintained due to the low hardness of the second phase.