CAJ | 학술논문

采用不同的温度制度对添加剂进行煅烧合成，并制备ZnO压敏陶瓷电阻。通过TG-DTA、SEM、XRD等测试手段研究了不同煅烧工艺合成添加剂对压敏陶瓷的影响，并对ZnO压敏陶瓷电阻的电气性能进行了测试研究。研究结果表明，添加剂经过煅烧生成了成分均一的复合氧化物，有利于压敏陶瓷结构的均匀，经过850℃、90 min煅烧制得的ZnO压敏陶瓷电位梯度为243 V/mm，压比达到1.68，老化系数为0.85，2 ms方波300 A电流冲击通过率为100%，表现出较好的综合电气性能。
채용불동적온도제도대첨가제진행단소합성，병제비ZnO압민도자전조。통과TG-DTA、SEM、XRD등측시수단연구료불동단소공예합성첨가제대압민도자적영향，병대ZnO압민도자전조적전기성능진행료측시연구。연구결과표명，첨가제경과단소생성료성분균일적복합양화물，유리우압민도자결구적균균，경과850℃、90 min단소제득적ZnO압민도자전위제도위243 V/mm，압비체도1.68，노화계수위0.85，2 ms방파300 A전류충격통과솔위100%，표현출교호적종합전기성능。
Additives powder was calcined under different temperature schedules and then ZnO varistor ceramics were prepared. The effects of additives calcination on the ceramics were studied by TG-DTA, SEM and XRD, and the electrical properties of the prepared varistor ceramics were measured. The results show that a homogeneous composite oxide is generated and it is helpful to the structural uniformity of the ceramics. The ZnO varistor ceramic with additives calcined at 850℃ for 90 min exhibits excellent electrical properties. Its potential gradient is 243 V/mm, its voltage ratio reaches 1.68, its aging coefifcient is 0.85 and the passing rate of 300 A 2 ms rectangular current test is 100%.