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Redox Behavior of Palladium Ion in Oxide Glasses

Published online by Cambridge University Press:  15 February 2011

Masaru Yamashita
Affiliation:
Department of Optical Materials, Osaka National Research Institute, AIST., 1–8-3 1, Midorigaoka, Ikeda, 563 Japan, yamashita_m@onri.go.jp
Junji Nishii
Affiliation:
Department of Optical Materials, Osaka National Research Institute, AIST., 1–8-3 1, Midorigaoka, Ikeda, 563 Japan, yamashita_m@onri.go.jp
Tomoko Akai
Affiliation:
Department of Optical Materials, Osaka National Research Institute, AIST., 1–8-3 1, Midorigaoka, Ikeda, 563 Japan, yamashita_m@onri.go.jp
Hiroshi Yamanaka
Affiliation:
Department of Optical Materials, Osaka National Research Institute, AIST., 1–8-3 1, Midorigaoka, Ikeda, 563 Japan, yamashita_m@onri.go.jp
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Abstract

Reduction and separation of Pd were investigated in soda-lime-alumino-borosilicate glass. The dependence on raw materials, melting atmosphere, concentration of Pd and melting temperature was examined by electrochemical oxygen activity measurement, optical absorbance, X-ray diffraction and microscopic observation. Pd ions were slowly reduced during melting and metal particles were formed. The separation was enhanced in a reducing atmosphere, at high temperature, for long melting periods and with high concentration of Pd. Pd metal particles of about 10 to 30 μm in diameter were observed by SEM and X-ray diffraction.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

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