动性------------------------------------------------------------------------------------------------ ——————————————————————————————————————还能够加快填充速度,从而提高生产效率。3 结论合理的干压工艺和良好的粉体性能是干压成形时获得高致密度坯体的两个必要条件。万方数据[5 ] [6] 张锐.陶瓷工艺学[M ] .化学工业出版社,2007. PathakI,c,Mlshra and sinte “ ng 23 3.1 双向加压并涂抹脱模剂、合理的加压压力、加压速度、保压时间有利于高致密度坯体的获得;3. 2合理的颗粒粒度及颗粒级配、适量的粘结剂及水分含量、流动性好的粉料容易获得高致密度的坯体。参考文献[1] zheng ence sK , BhattacharyaD , eta1 . synthe sis ------------------------------------------------------------------------------------------------ —————————————————————————————————————— of characte “ stics Mate “ als Y— Ba — Cu — oxide and supe卜, conductors[J ]. science Technology(B) 2004.110(2 ) :1192131. [7] Al — QureshiHA,GalIotto die A,KleinAfor N.ontheme — pactionpowdermeta “ urgy [J]. , JournaIofMaterialsProcessin gs