| 摘要 |
A zinc oxide composition for non-linear resistor which includes ZnO, Pr6O11, CoO and Cr2O3 is provided to have improved sinterability and breakdown voltage suitable for manufacturing compact arrester of power transmission and power transformation by comprising additional ingredient such as terbium oxide(Tb4O7). The composition is formed by adding 0.1 to 3.0mol.% of terbium oxide(Tb4O7) to a composition consisting of 90.0 to 98.8mol.% of zinc oxide(ZnO), 0.5 to 1.0mol.% of praseodymium oxide(Pr6O11), 0.5 to 5.0mol.% of cobalt oxide(CoO) and 0.1 to 1.0mol.% of chromium oxide(Cr2O3). The composition is useful for manufacturing arrester of power transmission and power transformation with reduced loss of electric current.
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