The rare earth powder characterization system is constituent of properties of crystal, surface, particle, powder and usage. 晶粒特性、表面特性、颗粒特性、颗粒群特性和应用特性等五方面构成了稀土粉体性能的评价体系。
Phase constituent and microstructure of a new particle reinforced Al matrix composites have been observed by XRD and SEM, which is prepared by molten reaction based on a new developed in-situ Al-K_2ZrF_6-KBF_4 system. 开发了原位合成Al-K2ZrF6-KBF4新体系,利用熔体反应法成功制备了新型颗粒增强铝基复合材料。
The effects of different doses of the raw materials in ZrO_2-B_4C-C towards the calcined and sintered products were investigated by hot pressing. The phase constituent analysis, particle size, microstructure, relative density and chemical analysis were carried out towards the calcined or sintered products. 采用固相反应和热压烧结方法研究了ZrO2B4CC体系反应原料的不同掺量对产物相组成的影响规律,并对烧结体进行了物相分析、粒度分析、显微结构分析、相对密度和化学分析。
Starting from the dynamics of the constituent particle of the system, this theory can be used to discuss the properties of the nuclear matter according to the principle of the statistic thermodynamics. 这一理论从系统成分粒子的动力学出发,按统计热力学的方法来讨论体系的性质。