Synthesis of aluminum nitride fibres from aluminum silicate fibres by carbothermal reduction method

摘要

Aluminum nitride (AlN) fibres were synthesized bycarbothermal reduction of aluminum silicate fibres and carbonblack in a flowing nitrogen atmosphere. XRD and SEM wereemployed to study the phase structure, chemical composition andmorphologies of the products. It is suggested that aluminumsilicate fibres can be converted into AlN fibres by carbothermalreduction. SEM confirmed that the fibres maintained themorphologies of aluminum silicate fibres during reduction, buttheir details of surface have been altered. A carbothermal nitridingmodel of the aluminum silicate fibres has been developed.