Combustion synthesis of high‐purity β‐SiAlON fine powders using natural kaolin

Abstract

Significance Single‐phase β‐SiAlON particles with submicron size were prepared via combustion synthesis (CS) using natural kaolin, Si, and Al as raw materials under a nitrogen atmosphere of 1 MPa. Kaolin could not only act as the raw material to provide the source of oxygen, but also act as the diluent to reduce the reaction temperature by eliminating the structural water during reaction process.

Reaction characteristics of combustion synthesis of β-SiAlON using different additives

“…Combustion synthesis (CS) is a recognized alternative to conventional methods of powders synthesis for producing various industrial materials [11][12][13][14], particularly ceramics [15][16][17][18]. This process exploits a self-sustaining regime that utilizes the heat generated during a strongly exothermic reaction.…”