Microstructure and electrical properties of Mn-Co-Zn-Cu-O NTC thermistors
文献类型：期刊论文
| 作者 | CHAI Xueping; JIA Sulan |
| 刊名 | Gongneng Cailiao/Journal of Functional Materials
 |
| 出版日期 | 2011 |
| 卷号 | 42期号:5页码:911-913,917 |
| 关键词 | Electric conductivity Grain boundaries Manganese Microstructure Pumps Thermistors Zinc oxide |
| ISSN号 | 10019731 |
| 中文摘要 | 采用Mn2.3Co3.7ZnxCuyO4(x=0、0.03、0.06;y=0、0.05、0.08、0.1、0.2)体系制备负温度系数热敏电阻(NTCR),并通过EDS、SEM、FTIR研究了样品的微观结构和导电机理。结果表明,Mn-Co-O体系通过掺杂ZnO、CuO可以制备低阻高B型NTCR,当x=0.03,y=0.05可得到期望的电学参数。其中,Zn存在于四面体间隙,可以提升阻值B值;Cu同时存在于四面体间隙和八面体间隙,可以降阻值B值,部分CuO在晶界发生偏析。 |
| 英文摘要 | Series of Mn2.3Co3.7 ZnxCuyO4 (x=0, 0.03, 0.06; y=0, 0.05, 0.08, 0.1, 0.2) were used as negative-temperature-coefficient (NTC) thermistor. The microstructure and electrical properties of the samples were studied by EDS, SEM and FTIR. The results indicate that series of Mn-Co-O NTC ceramics with the relatively low electrical resistivity and high B constant were obtained by adding ZnO, CuO, when the x=0.03, y=0.05 led to the desired electrical parameters. The added Zn+ cations have a strong tendency to place themselves on the octahedral sites of the spinel lattice and lead to an increase in electrical resistivity and the B constant, but Cu2+ ions occupy both octahedral and tetrahedral sites and cause an decrease in those parameters. At the same time, we find that segregation of CuO occur at the grain boundary. |
| 收录类别 | CSCD |
| 公开日期 | 2012-11-29 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/1453]  |
| 专题 | 新疆理化技术研究所_材料物理与化学研究室 |
| 作者单位 | 塔里木大学机电学院;中国科学院新疆理化技术研究所 |
| 推荐引用方式 GB/T 7714 | CHAI Xueping; JIA Sulan. Microstructure and electrical properties of Mn-Co-Zn-Cu-O NTC thermistors[J]. Gongneng Cailiao/Journal of Functional Materials,2011,42(5):911-913,917. |
| APA | CHAI Xueping; JIA Sulan.(2011).Microstructure and electrical properties of Mn-Co-Zn-Cu-O NTC thermistors.Gongneng Cailiao/Journal of Functional Materials,42(5),911-913,917. |
| MLA | CHAI Xueping; JIA Sulan."Microstructure and electrical properties of Mn-Co-Zn-Cu-O NTC thermistors".Gongneng Cailiao/Journal of Functional Materials 42.5(2011):911-913,917. |
入库方式： OAI收割
来源：新疆理化技术研究所
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