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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 9, Number 1
BKCSDE 9(1)
January 20, 1988

Title	Electrical Conductivity of the System ThO2-Ho2O3
Author	Seung Koo Cho, Sung Ho Park, Keu Hong Kim*, Jae Shi Choi
Keywords
Abstract	The electrical conductivitv of the system ThO2-Ho2O3was measured in the temperature range 600-1100℃ and PO2range 10-5-2×10-1 atm. The mean value of activation energy was 1.45 eV. The observed conductivity dependence on PO2 was PO21/4 at PO2's above 10-3 atm and was independent on oxygen partial pressure at PO2's below 10-3 atm. It is suggested that these dependences are due to a mixed ionic plus electron hole conduction by Vo defect.
Page	21 - 24
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