| MnO_2掺杂ZnPrCoCrO基压敏陶瓷制备 |
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| 引用本文： | 赵鸣,石钰,王志龙,杨乐,申鹏.MnO_2掺杂ZnPrCoCrO基压敏陶瓷制备[J].电子元件与材料,2012,31(4):10-12. |
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| 作者姓名： | 赵鸣 石钰 王志龙 杨乐 申鹏 |
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| 作者单位： | 1. 白云鄂博矿稀土及铌资源高效利用省部共建教育部重点实验室,内蒙古包头 014010;内蒙古科技大学材料与冶金学院,内蒙古 包头014010
2. 内蒙古科技大学材料与冶金学院,内蒙古 包头,014010 |
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| 基金项目： | 内蒙古自然科学基金资助项目(No.20080404MS0804) |
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| 摘 要： | 采用传统氧化物陶瓷工艺制备了掺杂MnO2(摩尔分数0～1.5%)的ZnO-Pr6O11-Co2O3-Cr2O3(ZnPrCoCrO)基压敏陶瓷。利用XRD、SEM及I-V特性测试等表征了所制陶瓷的微观结构和电学特性。结果表明:1 350℃下烧结1 h所制掺杂0.5%MnO2的ZnPrCoCrO陶瓷具有最佳的高压压敏性能:相对密度为99%、非线性系数为110、压敏电压强度为2 840 V/mm、漏电流密度为11.4×10–6A/cm2。
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| 关 键 词： | 压敏陶瓷 ZnO MnO2 Pr6O11 |
Preparation of MnO2 doped ZnPrCoCrO based varistor ceramics |
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| ZHAO Ming
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SHI Yu
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WANG Zhilong
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YANG Le
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SHEN Peng.Preparation of MnO2 doped ZnPrCoCrO based varistor ceramics[J].Electronic Components & Materials,2012,31(4):10-12. |
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| Authors: | ZHAO Ming SHI Yu WANG Zhilong YANG Le SHEN Peng |
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| Affiliation: | 1.Key Laboratory for Proficient Exploration Rare Earth and Niobium Co-founded by the Ministry of Education and the Province,Inner Mongolia University of Science & Technology,Baotou 014010,Inner Mongolia Autonomous Rejion,China;2.College of Material and Metallurgy,Inner Mongolia University of Science & Technology,Baotou 014010,Inner Mongolia Autonomous Rejion,China) |
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| Abstract: | ZnO-Pr6O11-Co2O3-Cr2O3(ZnPrCoCrO) based varistor ceramics doped with 0-1.5%(mole fraction) MnO2 were prepared by traditional ceramic process.The microstructure and I-V characteristics of these ceramics were examined by XRD,SEM and I-V tests.The results show that the ceramic doped with 0.5%(mole fraction) MnO2 sintered at 1 350 ℃ for 1 h exhibits the optimum high-voltage properties with a relative density of 99%,a nonlinear coefficient of 110,a breakdown voltage strength of 2 840 V/mm and a leakage current density of 11.4×10–6 A/cm2. |
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| Keywords: | varistor ceramics ZnO MnO2 Pr6O11 |
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