介绍了传统非等离子体法制备球形粉体方法——雾化法和喷雾造粒法，分析了其在热喷涂球形粉体制备过程中存在的优势和局限性。综述了等离子球化技术在热喷涂粉体材料领域中的应用现状，并深入讨论了感应等离子体球化过程中不同的工艺条件对粉体球化率和形貌的影响：原料粉体状态决定了球化后粉体的平均粒径，降低粉体原始粒径可以提高熔融程度，粒径分布较窄的原始粉体有利于得到高球形度粉体；适当增大输入功率和工作气体流量，可降低细小颗粒的粘附现象；工作气体的种类会影响等离子焰炬的热焓值；送粉速率需要结合粉体性质择优选取。这些关键影响因素对热喷涂粉体性能的调控机制，以及深入认识等离子体作用条件下的热喷涂粉体球化机理，提供了有力的理论支撑。总结和展望了感应等离子球化技术在热喷涂陶瓷粉体材料制备中存在的问题和发展方向，感应等离子体球化技术作为制备高纯度、无污染热喷涂球形粉体材料的一种新技术，具有广阔的应用前景。

The paper introduced the traditional method for preparation of spherical powder—atomization and spray granulation method, and analyzed the advantages and limitations in thermal spraying during the preparation of spherical powder with the method above. The current application of plasma spheroidizing technology in thermal spraying powder materials was reviewed and the influences of different process conditions in inductive plasma spheroidizing on the powder spheroidization rate and surface morphology were discussed: the state of raw material powder determined the average particle size of the powder after spheroidizing, and reducing the original particle size of powder can improve the molten. Narrow particle size distribution of raw powder was helpful to get powder of degree. Increasing the input power and working gas flow properly can reduce the adhesion of fine particles. The type of working gas affected the enthalpy of plasma torch. The powder feeding rate should be selected according to the powder properties. These key factors provided powerful theoretical support for the regulation mechanism of the properties of thermal spray powder and further understanding the spheroidization mechanism of thermal spray powder with the action of plasma. The problems and development direction of inductive plasma spheroidization in preparation of thermal spraying ceramic powders were summarized and prospected. As a new technique for preparing spherical powder materials with high purity and without pollution, inductive plasma spheroidization has a board prospect of application.