Annealing Effects on Conductivity and Microwave Dielectric Loss of MgTiO3 Ceramics

doi:10.1143/JJAP.50.065806

CORC > 化学研究所 > 中国科学院化学研究所

	Annealing Effects on Conductivity and Microwave Dielectric Loss of MgTiO3 Ceramics
	Zhu, Hong 1; Kuang, Xiao-Jun 2; Wang, Chun-Hai 3; Xia, Hai-Ting 3; Li, Lei 3; Hu, Peng 3; Jing, Xi-Ping 3; Tang, Zong-Xi 4; Zhao, Fei 5; Yue, Zhen-Xin 5
刊名	JAPANESE JOURNAL OF APPLIED PHYSICS
	2011-06-01
卷号	50 期号:6
ISSN号	0021-4922
DOI	10.1143/JJAP.50.065806
英文摘要	MgTiO3 ceramics were annealed in various atmospheres of air, O-2 and N-2 at a low temperature of 800 degrees C and the influences of annealing on the conductivity and microwave dielectric loss were investigated. The conductivity variation with the annealing atmosphere is consistent with the defect equilibrium 2O(O)(x) <-> 2V(O)(center dot center dot) + O-2 up arrow + 2e', indicating n-type conductance for MgTiO3. Annealing in air/O-2 is favorable for eliminating oxygen vacancies and electron defects and thus decreases the conductivity. The N-2-annealing increases the contents of oxygen vacancies and electron defects as well as the conductivity. Annealing in air/O-2/N-2 reduced the microwave dielectric loss irrespective of the contrary effects of air/O-2-annealing and N-2-annealing on the defects and conductivity, suggesting the frozen defects associated with the oxygen loss during the high-temperature sintering and the low-temperature N-2-annealing have negligible effects on microwave dielectric loss. Other factors, such as the release of thermally induced strain, may be responsible for the reduction of microwave dielectric loss due to the low-temperature annealing in air/O-2/N-2. (C) 2011 The Japan Society of Applied Physics
语种	英语
出版者	JAPAN SOC APPLIED PHYSICS
WOS记录号	WOS:000291741800060
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/71559]
专题	中国科学院化学研究所
通讯作者	Zhu, Hong
作者单位	1.Nanchang Univ, Dept Chem, Nanchang 330031, Peoples R China 2.Sun Yat Sen Univ, Sch Chem & Chem Engn, State Key Lab Optoelect Mat & Technol, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 4.Univ Elect Sci & Technol China, Coll Elect Engn, Chengdu 610054, Peoples R China 5.Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Hong,Kuang, Xiao-Jun,Wang, Chun-Hai,et al. Annealing Effects on Conductivity and Microwave Dielectric Loss of MgTiO3 Ceramics[J]. JAPANESE JOURNAL OF APPLIED PHYSICS,2011,50(6).
APA	Zhu, Hong.,Kuang, Xiao-Jun.,Wang, Chun-Hai.,Xia, Hai-Ting.,Li, Lei.,...&Yue, Zhen-Xin.(2011).Annealing Effects on Conductivity and Microwave Dielectric Loss of MgTiO3 Ceramics.JAPANESE JOURNAL OF APPLIED PHYSICS,50(6).
MLA	Zhu, Hong,et al."Annealing Effects on Conductivity and Microwave Dielectric Loss of MgTiO3 Ceramics".JAPANESE JOURNAL OF APPLIED PHYSICS 50.6(2011).