| 다양한 분산제에 의한 AlN-Y2O3 혼합분말의 비수계 용매 중 분산특성 |
| 김신, 방상우, 황인준, 윤상옥, 신현호 |
| 강릉원주대학교 재료공학과 |
| Dispersion Characteristics of AlN-Y2O3 Powder Mixture by Various Dispersants in Non-aqueous Solvents |
| Shin Kim, Sang-Woo Bang, Injoon Hwang, Sang-Ok Yoon, Hyunho Shin |
| Departmernt of Materials Engineering, Gangneung-Wonju National University |
|
|
|
|
|
| ABSTRACT |
|
The dispersion characteristics of AlN-4.5 wt% $Y_2O_3$ powder mixture by various dispersants were investigated in ethanol and methyethly-ketone (MEK) solvents. In general, the cationic polymer dispersants demonstrated superior dispersion of the powder as compared to the non-ionic ester-type dispersants or anionic phosphate-ester-based ones. The dispersion performance of the cationic polymer dispersants was sensitive to the type of solvent. An anhydric maleic-acid-based graft copolymer dispersant, AFB-1521, demonstrated a very good dispersion capability in ethanol but exhibited a much inferior dispersion in MEK. On the other hand, the dispersion of the powder mixture was very good with a phosphate-ester-based block polymer dispersant, BYK-111, in MEK solvent, while dispersionwas much degraded in ethanol. |
| Key words:
Aluminum nitride, Yttria, Dispersion, Dispersant, Tape casting |
|
PDF Links
Full text via DOI
Download Citation 
