Preparation of In Situ Growth Multiscale β-Sialon Grain-Reinforced AlO-Based Composite Ceramic Tool Materials.

A kind of multiscale β-sialon grain-reinforced AlO matrix composite ceramic tool material, named ASN, was prepared and studied. For the ASN, β-sialon (molecular formula: SiAlON) was synthesized in situ by a hot-pressing and solid-solution reaction process. A total of six samples were prepared at varying sintering temperatures and holding times under vacuum conditions.