La2O3-doped 0.6Y(2)O(3)-0.4YCr(0.5)Mn(0.5)O(3) composite NTC ceramics for wide range of temperature sensing

CORC > 新疆理化技术研究所 > 中国科学院新疆理化技术研究所 > 新疆维吾尔自治区电子信息材料与器件重点实验室

	La2O3-doped 0.6Y(2)O(3)-0.4YCr(0.5)Mn(0.5)O(3) composite NTC ceramics for wide range of temperature sensing
	Zhang Bo; Zhao Qing; Chang Aimin; Huang Xia; Hou Juan; Zhao Pengjun; Ji Guang
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2013
卷号	581 期号:12 页码:573-578
关键词	Wide temperature range NTC thermistors Perovskites La2O3
ISSN号	0925-8388
通讯作者	Zhao, Q
中文摘要	Ceramic compositions based on 0.6Y(2)O(3)-0.4YCr(0.5)Mn(0.5)O(3) doped with La2O3 were prepared by solid state reaction at different calcining temperatures, and sintered at 1550 and 1600 degrees C. XRD patterns have shown that there exists a LaCr0.5Mn0.5O3 phase when the amount of La2O3 increases to 5.0 wt% in the calcined powders. Major phases presented in the sintered ceramics are Y2O3 phase and orthorhombic perovskite phase isomorphic to YCrO3. The obtained q25, B25/150 and B700/1000 constants of the La2O3-doped NTC thermistors are in the range of 105-106 X cm, 3600-3800 K and 6000-6600 K, respectively. The electrical conductivity in these compounds may be due to the presence of Cr3+, Cr4+, Mn3+ and Mn4+ on octahedral sites. The resistance almost does not change when the aging time is from 600 to 1000 h. Such ceramics could be used as potential candidates for NTC thermistors in a wide temperature range from ambient to 1100 degrees C.
学科主题	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	National Natural Science Foundation of China 51102276; Natural Science Foundation of Xinjiang of China 2010211A59; High Technology Research and Development Program of Xinjiang of China 201116147; National High Technology Research and Development Program of China 2012 AA091102
公开日期	2013-11-07
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/2627]
专题	新疆理化技术研究所_新疆维吾尔自治区电子信息材料与器件重点实验室
作者单位	Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China; Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang Bo,Zhao Qing,Chang Aimin,et al. La2O3-doped 0.6Y(2)O(3)-0.4YCr(0.5)Mn(0.5)O(3) composite NTC ceramics for wide range of temperature sensing[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2013,581(12):573-578.
APA	Zhang Bo.,Zhao Qing.,Chang Aimin.,Huang Xia.,Hou Juan.,...&Ji Guang.(2013).La2O3-doped 0.6Y(2)O(3)-0.4YCr(0.5)Mn(0.5)O(3) composite NTC ceramics for wide range of temperature sensing.JOURNAL OF ALLOYS AND COMPOUNDS,581(12),573-578.
MLA	Zhang Bo,et al."La2O3-doped 0.6Y(2)O(3)-0.4YCr(0.5)Mn(0.5)O(3) composite NTC ceramics for wide range of temperature sensing".JOURNAL OF ALLOYS AND COMPOUNDS 581.12(2013):573-578.