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| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-524 |
| Subject |
Effects of Sintering Condition and MgO-Dopping on Temperature Electrical Conductivity of AlN Ceramics sintered with Y2O3 |
| Authors |
Dongsu Yu*, Jong-Young Kim1, Eunsil Lee
Ceramicware Center, Korea Institute of Ceramic Engineering and Technol, Korea
1Korea Institute of Ceramic Engineering and Technol, Korea
|
| Abstract |
High temperature electrical conductivity of Aluminum Nitride (AlN) ceramics sintered with Y2O3 as a sintering aid has been investigated with respect to various sintering conditions and MgO-dopant. When magnesium oxide is added as a dopant, spinel phases are formed as second phases, which affects the electrical properties. The effect leads to reduction of activation energy and increased electrical resistivity. This is a result of removal of some Al2O3 impurity that makes carrier decrease. When the sintering temperature decreases, grain growth was reduced, which leads to a reduction of activation energy and increased electrical resistivity. |
| E-mail |
luckykick@naver.com |
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121st General Meeting of the KCS