山东化工
山東化工
산동화공
SHANDONG CHEMICAL INDUSTRY
2012年
9期
4-7
,共4页
ZnO压敏瓷%球磨时间%电性能
ZnO壓敏瓷%毬磨時間%電性能
ZnO압민자%구마시간%전성능
ZnO varistor%ball milling time%electrical property
粉体是ZnO压敏瓷制备的起点，粉料的混合性直接影响其综合电性能。采用不同球磨球磨时间制备氧化锌压敏瓷粉体，通过扫描电镜和x射线衍射分析，探讨球磨时间对氧化锌压敏瓷电性能和微观组织的影响。研究结果表明，球磨5h制备的粉体烧结后综合电性能最好，其电位梯度为356V／mm；非线性系数为36．4，漏电流为1．38μA，致密度98．6％。
粉體是ZnO壓敏瓷製備的起點，粉料的混閤性直接影響其綜閤電性能。採用不同毬磨毬磨時間製備氧化鋅壓敏瓷粉體，通過掃描電鏡和x射線衍射分析，探討毬磨時間對氧化鋅壓敏瓷電性能和微觀組織的影響。研究結果錶明，毬磨5h製備的粉體燒結後綜閤電性能最好，其電位梯度為356V／mm；非線性繫數為36．4，漏電流為1．38μA，緻密度98．6％。
분체시ZnO압민자제비적기점，분료적혼합성직접영향기종합전성능。채용불동구마구마시간제비양화자압민자분체，통과소묘전경화x사선연사분석，탐토구마시간대양화자압민자전성능화미관조직적영향。연구결과표명，구마5h제비적분체소결후종합전성능최호，기전위제도위356V／mm；비선성계수위36．4，루전류위1．38μA，치밀도98．6％。
Powders were the beginning of the zinc oxide - based varistors, which had indirectly effect on their electrical properties. Zinc oxide - based varistors were prepared by high- energy mechanical activation varistors were characterized by XRD subjecting the mixed powders to foe different time. The structural and electrical properties of ZnO and SEM analysis, as well as by electrical measurements. The result showed that 5h was the optimal milling time, coefficient reaching 36.4, leakage current of Key words :ZnO varistor; ball milling time ; which exhibited breakdown field of 356 V/mm, nonlinear 1.38μA, and the relative density of 98.6%. electrical property
