PLANAR CRYSTALLINITY-ALUMINA-COMPOSITE-OXIDE FINE-PARTICLE AGGREGATE, PLANAR CRYSTALLINITY-ALUMINA-COMPOSITE-OXIDE PARTICLE CONSISTING OF PLANAR CRYSTALLINITY-ALUMINA-COMPOSITE-OXIDE FINE-PARTICLE AGGREGATE, AND PRODUCTION METHOD OF PLANAR CRYSTALLINITY-ALUMINA-COMPOSITE-OXIDE FINE-PARTICLE AGGREGATE AND PLANAR CRYSTALLINITY-ALUMINA-COMPOSITE-OXIDE PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide: a fine particle aggregate in which a surface charge density is high, and when used as a resin filler, a film strength (a flexural strength, a bending elastic modulus, a load-deflection strength or the like) can be improved; and a fine particle aggregate which has a very large porosity (pore volume), and which enables a very light-weight compact to be obtained.SOLUTION: There is provided a planar crystallinity-alumina-composite-oxide fine-particle aggregate in which whisker-like alumina-composite-oxide fine particles have aggregated in a planar shape, the aggregate forming a crystallinity-alumina-composite-oxide particle having a card house structure.