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7.1: Invited Paper : Characteristics of Pure MgO Powders Added to an MgO Film
Author(s) -
Lee MinSuk,
Choi IlShin,
Kim Chang Sung,
Kim Yong Jun,
Heo Eun Gi,
Park HyoungBin,
Kim Young Sun,
Choe Deok Hyeon
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb05708.x
Subject(s) - crystallinity , materials science , chemical engineering , thermal , mineralogy , composite material , chemistry , thermodynamics , physics , engineering
Pure MgO powders were synthesized using wet chemical and thermal processes. Purity and crystallinity were used as indicators determining the synthesis. From this, we obtained highly pure and crystalline MgO powders. Using these powders, we could achieve 15∼20V lower firing voltage and 10∼15% higher efficiency, depending on the extent of the partly covered area and on sealing temperature. The improvement was proved to be due to surface states that were absent in an MgO film.