非氧化物陶瓷超细粉的制备

非氧化物陶瓷以优异的综合性能,在冶金、化工、机械、电子等领域有着广阔的应用前景.为了制备出适于烧结的非氧化物陶瓷超细粉体,人们进行了大量的研究工作.本文综述了非氧化物陶瓷超细粉的研究进展,其中涉及机械粉碎法、金属元素反应法、金属氧化物碳热还原(氮化)法、聚合物热解法、气相化学反应法及溶剂热合成法等,并对金属氧化物碳热还原(氮化)法的进展进行了较为详细的描述.

Synthesis of Ultrafine Powders of Non-Oxide Ceramics

Non-oxide ceramics have a wide application in many fields, such as metallurgy, chemical engineering, mechanical engineering and electronics, due to their excellent properties. A lot of efforts have been made to synthesize sinerable ultrafine powders of non-oxide ceramics. In this paper, the progress of preparing ultrafine powders of non-oxide ceramics was reviewed. It involves mechanical grinding, reaction of elemental metal, carbothermal reduction (nitridation) of metal oxide, py-rolysis of polymer, chemical vapour deposition, and solvothermal synthesis. In particularly, the progress of carbothermal reduction (nitridation) was detailedly described.