The secondary particle sphere of xonotlite yielded by konilite is of hollow structure, however, for the carbon white fibrous crystal just stacked densely and balling up is poor.
由粉石英制备的硬硅钙石二次粒子球具有中空结构，而白炭黑对应样品则以纤维聚集成的块体为主，成球差。
2
Densification process of carbonfibrous preform is divided into two procedures, CVI stage and SCVD stage.
炭纤维预形体的的增密工艺可分为CVI阶段和SCVD阶段。
3
Catalytic cracking oil slurry after filtration separation can be used to manufacture carbon black, needle coke, carbonfibrous material, plasticizer and so on.