|本期目录/Table of Contents|

[1]马成建,刘云飞,吕忆农,等.Bi2O3掺杂对Ni-Mn-O基NTC热敏陶瓷显微结构及电性能的影响[J].南京工业大学学报(自然科学版),2014,36(06):1-6.[doi:10.3969/j.issn.1671-7627.2014.06.001]
 MA Chengjian,LIU Yunfei,LÜ Yinong,et al.Effects of Bi2O3 doping on microstructure and electrical properties of Ni-Mn-O based NTC ceramics[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(06):1-6.[doi:10.3969/j.issn.1671-7627.2014.06.001]
点击复制

Bi2O3掺杂对Ni-Mn-O基NTC热敏陶瓷显微结构及电性能的影响()
分享到:

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年06期
页码:
1-6
栏目:
出版日期:
2014-11-21

文章信息/Info

Title:
Effects of Bi2O3 doping on microstructure and electrical properties of Ni-Mn-O based NTC ceramics
文章编号:
1671-7627(2014)06-0001-06
作者:
马成建刘云飞吕忆农高虹丁健翔
南京工业大学 材料科学与工程学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
MA ChengjianLIU YunfeiLÜ YinongGAO HongDING Jianxiang
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
NTC热敏陶瓷 尖晶石 固相配位法 Bi2O3 电性能
Keywords:
NTC thermistor spinel solid-state coordination reaction Bi2O3 electrical property
分类号:
TQ174
DOI:
10.3969/j.issn.1671-7627.2014.06.001
文献标志码:
A
摘要:
采用固相配位反应法制备Ni0.6BixMn2.4-xO4(0≤x≤0.1)热敏陶瓷。采用X线衍射仪(XRD)、扫描电子显微镜(SEM)、能谱仪(EDS)和阻抗分析仪对陶瓷的相结构、显微结构、元素分布和电性能进行表征。结果表明:少量添加Bi2O3能显著提高材料的烧结性能,在1 000 ℃下达到致密化。在x=0时,材料保持单相立方尖晶石结构,当x≥0.02时,有杂相Bi2O3、Bi3.64Ni0.36O5.82、Bi7.47Ni0.53O11.73 及Bi2Ni2O5相继出现。随着Bi3+掺杂量的增加,陶瓷晶粒尺寸先增大后减小,伴随着显微结构的变化,材料的电阻率先减小后增大,材料常数B先增大后减小。
Abstract:
Ni0.6BixMn2.4-xO4(0≤x≤0.1)ceramics were prepared by solid-state coordination reaction.The phase,microstructure,elements distribution, and electrical properties were investigated by X-ray diffraction(XRD),scanning electron microscope(SEM),energy disperse spectroscopy(EDS), and precision impedance analyzer,respectively.Results showed that the sintering performance of the ceramic was improved by adding a small amount of Bi2O3,and dense ceramics obtained at 1 000 ℃.When x=0, the ceramic was single cubic spinel structure.The mixed phases, Bi2O3, Bi3.64Ni0.36O5.82,Bi7.47Ni0.53O11.73, and Bi2Ni2O5,appeared one by one while x≥0.02.As the Bi3+ content increased,the grain size increased firstly, and then decreased.The electrical resistivities decreased with the increasing of Bi3+ content(0≤x≤0.08),then turned to increase with the increasing of Bi3+ content(0.08<x≤0.1). The material constant B increased firstly, and then decreased.

参考文献/References:

[1] Feteira A.Negative temperature coefficient resistance(NTCR)ceramic thermistors:an industrial perspective[J].Journal of the American Ceramic Society,2009,92(5):967-983.
[2] Sickafus K E,Wills J M,Grimes N W.Structure of spinel[J].Journal of the American Ceramic Society,1999,82(12):3279-3292.
[3] de Györgyfalva G D C C,Reaney I M.Decomposition of NiMn2O4 spinel:an NTC thermistor material[J].Journal of the European Ceramic Society,2001,21(10/11):2145-2148.
[4] Torii Y,Tsuzuki A,Kato K,et al.Chemical processing and characterization of spinel-type thermistor powder in the Mn-Ni-Fe oxide system[J].Journal of Materials Science,1996,31(10):2603-2607.
[5] Sarrión M,Morales M.Preparation and characterization of NTC thermistors based on Fe2+δMn1-x-δNixO4[J].Journal of Materials Science,1995,30(10):2610-2615.
[6] 徐卫良,陈秀娟,杨建,等.B2O3对YCaZrVIG铁氧体微结构及性能的影响[J].人工晶体学报,2013,42(2):340-344.
[7] Wang W,Liu X,Zhao M,et al.Effect of V2O5 additive on the microstructure and electrical properties of Mn-Co-NiO NTC thermistor[J].Key Engineering Materials,2007,336-338:743-745.
[8] Wickham D G.Solid-phase equilibria in the system NiO-Mn2O3-O2[J].Journal of Inorganic and Nuclear Chemistry,1964,26(8):1369-1377.
[9] Fang D L,Lee C G,Koo B H.Preparation of ultra-fine FeNiMnO4 powders and ceramics by a solid-state coordination reaction[J].Metals and Materials International,2007,13(2):165-170.
[10] 王卫民,魏少红,杜记民,等.Bi2O3对MnCoNiO基NTC热敏半导体陶瓷显微结构和电性能影响[J].人工晶体学报,2009,38(增):316-320.
[11] 张其土.无机材料科学基础[M].上海:华东理工大学出版社,2007:81-82.
[12] Kingery W D,Bowen H K,Uhlmann D R.Introduction to ceramics [Z].2nd ed.Singapore:John Wiley & Sons,2004.
[13] Torikai N,Meguro T,Sasamoto T,et al.Preparation of fine particles of spinel-type Mn-Co-Ni oxide by freeze-drying[J].Journal of the Chemical Society of Japan,1984,6:785-791.
[14] Varghese J M,Seema A,Dayas K R.Microstructural,electrical and reliability aspects of Chromium doped Ni-Mn-Fe-O NTC thermistor materials[J].Materials Science and Engineering:B,2008,149(1):47-52.
[15] Zhang H,Chang A,Peng C.Preparation and characterization of Fe3+-doped Ni0.9Co0.8Mn1.3-xFexO4(0≤x≤0.7)negative temperature coefficient ceramic materials[J].Microelectronic Engineering,2011,88(9):2934-2940.
[16] 苏树兵,宋世庚,郑应智,等.CoMnCuO系NTC热敏电阻的复阻抗分析[J].材料科学与工程,2002,20(3):386-389.
[17] Yokoyama T,Meguro T,Shimada Y,et al.Preparation and electrical properties of sintered oxides composed of Mn1.5Co(0.25+X)Ni(1.25-X)O4(0≤X≤0.75)with a cubic spinel structure[J].Journal of Materials Science,2007,42(14):5860-5866.
[18] Yokoyama T,Meguro T,Nakamura M,et al.Fabrication and electrical properties of sintered bodies composed of Mn(1.75-1.25X)Co2.5XNi1.25(1-X)O4(0≤X≤0.6)with a cubic spinel structure[J].Journal of Ceramic Processing Research,2009,10(5):683-688.
[19] Metz R.Electrical properties of NTC thermistors made of manganite ceramics of general spinel structure:Mn3-x-xMxNxO4(0≤x+x’≤1; M and N being Ni,Co or Cu):Aging phenomenon study[J].Journal of Materials Science,2000,35(18):4705-4711.
[20] Kanade S A,Puri V.Properties of thick film Ni0.6Co0.4FeyMn2-yO4:(0≤y≤0.5)NTC ceramic[J].Journal of Alloys and Compounds,2009,475(1/2):352-355.
[21] Park K,Kim S J,Kim J G,et al.Structural and electrical properties of MgO-doped Mn1.4Ni1.2Co0.4-xMgxO4(0≤x≤0.25)NTC thermistors[J].Journal of the European Ceramic Society,2007,27(4):2009-2016.
[22] Ma C,Liu Y,Lu Y,et al.Preparation and characterization of Ni0.6Mn2.4O4 NTC ceramics by solid-state coordination reaction[J].Journal of Materials Science:Materials in Electronics,2013,24(12):5183-5188.

备注/Memo

备注/Memo:
收稿日期:2013-10-22
基金项目:江苏高校优势学科建设工程; 长江学者和创新团队发展计划(IRT1146)
作者简介:马成建(1988—),男,江苏阜宁人,博士生,主要研究方向为功能陶瓷制备与表征; 吕忆农(联系人),教授,E-mail:yinonglu@njtech.edu.cn; 刘云飞(联系人),副教授,E-mail:yfliu@njtech.edu.cn..
更新日期/Last Update: 2014-11-20