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The effect of La 2 O 3 additive on a SnO 2 -based varistor material sintered at 1350°C for 80min was investigated. It was found that La 2 O 3 significantly decreases the grain size and improves the non-linear electrical properties of SnO 2 -based varistors. The sample with 1.00mol% La 2 O 3 has the best non-linear electrical property...
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