About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
17th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
| Presentation Title |
Graphene Coating by Mechanical Treatment to Provide Water Resistance to Aluminium Nitride Particles Used in Spray-Freeze Granulation Drying of Aqueous Slurries |
| Author(s) |
Junichi Tatami, Riko Yamazaki, Motoyuki Iijima, Naoki Kondo, Shinya Kawaguchi |
| On-Site Speaker (Planned) |
Junichi Tatami |
| Abstract Scope |
In order to provide water resistance to aluminum nitride particles used in spray-freeze granulation drying of aqueous slurry, graphene coating by mechanical treatment on the particles was investigated. The graphene-coated aluminum nitride particles showed excellent water resistance since the pH value of the aqueous suspension did not change and aluminum hydroxide was not detected even after stirring for a long time. The relative density of the aluminum nitride ceramics obtained with the composite particles was high, and their secondary phase was also found to be yttrium aluminate having less oxygen than those prepared without graphene coating, due to suppressed hydrolysis. |