| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Coating and Thin Film Materials for Energy, Aerospace, Environment and Biological Applications
|
| Presentation Title |
Synthesis of Magnesium Oxide based Insulation Coating Powder by Co-precipitation |
| Author(s) |
Bong-Gu Kim, Hyun-Hee Choi, Jung-Hun Son, SeungCheol Yang, Yun-ki Byeun, Min Serk Kwon, Asimiyu Tiamiyu, Jing Zhang, Yeon-Gill Jung |
| On-Site Speaker (Planned) |
Bong-Gu Kim |
| Abstract Scope |
Magnesia is currently employed as a coating material for forming insulation layers on semiconductors, metals, etc., due to its superior electrical insulation property compared to silicate or alumina. However, the insulating quality of MgO is degraded owing to high hygroscopicity, surface staining, and surface defects. In order to improve these problems, powders of a new binary system were synthesized by substituting various transition metal ions for some Mg ions in MgO, based on co-precipitation method using chloride precursors as starting materials. The characteristics of powders, such as size, shape, microstructure, were evaluated according to the type and content of substitutional element, slurry pH, and the amount and type of catalyst. As a result, the optimum powder composition in the binary system could be derived for forming the MgO-based insulation coating layer with the more improved characteristics, compared to that of the insulation layer using only MgO, |