粒度增大 meaning in English

coarsening

After heat treatments , the granularity of powders increases and ultraf ine grains decreases . cracks appear on the surface of powders . so the rigidity of powders descends
热处理后粉末的粒度增大，微细颗粒的比例减小，表面出现裂纹，降低了粉末的硬度，同时粉末团聚作用减弱。
With the optimum parameter , the obtained composite particle have many changes compared with uncoated graphite , such as the increase of coating ratio , particle size and decrease of specific surface area , et al
在最佳包覆工艺条件下，所得复合粉体相对未处理石墨氧化物含量(包覆率)增加、粒度增大与表面积减小。
The appropriate calcinations temperature is about 700 , and the tetragonal sno2 phase crystal structure of the particles remained unchanged when sb was doped to it . as the calcinations temperature increasing and the calcinations time prolong , the size of particles grows and the crystallization tend to be complete . study on the electrical properties of ato powders prepared by hydrothermal synthesis was performed in - depth , the most optimal electrical properties are obtained at doping ratio of 11 percent
水热法制备的ato纳米粉体在热处理温度700左右较为适宜，锑的掺杂并未改变粉体的四方相金红石结构，随锑掺杂量的增加，粉体的粒度变小；随热处理温度的升高和热处理时间的延长， ato粉体的粒度增大，晶体结构趋于完整。