2-エチルヘキサン酸塩の熱分解によるZrO_2-CaO系薄膜の作製

概要

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ZrO_2-CaO thin films have been prepared by thermal decomposition of 2-ethylhexanoate. Butanol solutions of Zr and Ca 2-ethylhexanoate containing 0 to 80 mol% CaO were coated on Al_2O_3 ceramic substrates, dried at room temperature and 110℃, and then thermally decomposed at 550℃. The above operation was repeated eleven times, and then the specimens were finally heated at various temperatures from 550 to 1400℃. Results of X-ray diffraction and electric conductivity measurements showed that the thin films prepared from the coating solutions with compositions of 13 and 17 mol% CaO by final heating at 1200℃ had the highest X-ray diffraction intensity and electric conductivity, respectively. Activation energies for conduction were 0.78 to 1.36 eV, and a maximum value of 1.36 eV was obtained when CaO content in the coating solution was 20 mol%.
社団法人日本セラミックス協会の論文
1997-11-01