R4: Mineral sciences of the Earth surface

[R4-03] Amorphous nanoparticles: clay minerals?

*Katsuhiro Tsukimura¹, Kazuko Manpuku¹, Yoko Miyoshi¹, Masaya Suzuki¹, Tetsuichi Takagi¹, Shin-ichiro Wada² (1. AIST, 2. Kyusyu Univ.)

Keywords:amorphous nanoparticles, plasticity, clay minerals, specific surface area, kaolinite

Comparison of several categories of clays shows that specific surface area is proportional to the amount of amorphous nanoparticles. In kaolin and in bentonite, specific surface area is positively correlated with the amount of amorphous nanoparticles. It is known that plasticity is proportional to specific surface area. Therefore, the plasticity of clay is proportional to the amount of amorphous nanoparticles.