Intrinsic dielectric behavior of Mg2TiO4 spinel ceramic

被引：35

作者：

Li, Hao ^{[1
]}

Xiang, Rui ^{[1
]}

Chen, Xiaoqing ^{[1
]}

Hua, Haowei ^{[1
]}

Yu, Shengquan ^{[2
]}

Tang, Bin ^{[3
,4
]}

Chen, Gongtian ^{[5
]}

Zhang, Shuren ^{[3
,4
]}

机构：

[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China

[2] China Acad Engn Phys, Inst Chem Mat, Mianyang 621900, Sichuan, Peoples R China

[3] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China

[4] Univ Elect Sci & Technol China, Natl Engn Res Ctr Electromagnet Radiat Control Ma, Chengdu 610054, Peoples R China

[5] Gongtian Elect Ceram Technol Co Ltd, Chenzhou 230004, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Microwave dielectric properties; Mg2TiO4; Chemical bond; Infrared spectrum; INFRARED REFLECTION SPECTRA; LOSS MICROWAVE DIELECTRICS; COMPLEX CHEMICAL-BOND; CRYSTAL-STRUCTURE; LATTICE ENERGY; RAMAN-SPECTRA; IONICITY;

D O I：

10.1016/j.ceramint.2019.10.143

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the work, we focused on the intrinsic dielectric behavior of Mg2TiO4 spinel ceramic by P-V-L theory and infrared spectra analysis. Ti-O bonds have larger bond ionicity values, thus playing an important role in dielectric polarization. The theoretical dielectric constant was predicted by calculating the bond susceptibility of each chemical bond. Furthermore, Ti(1)-O bonds are responsible for the structural stability of Mg2TiO4 ceramic. Based on classical dispersion theory, permittivity and loss corresponding to each infrared active mode were quantified, and then the crucial contribution of low-frequency modes to intrinsic dielectric properties were determined.

引用

页码：4235 / 4239

页数：5

共 34 条

[21] EXPGUI, a graphical user interface for GSAS [J].

Toby, BH .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2001, 34 :210-213

[22] Relationship Between Bond Ionicity, Lattice Energy, and Microwave Dielectric Properties of Zn(Ta1-xNbx)2O6 Ceramics [J].

Xia, Wang-Suo ;

Li, Ling-Xia ;

Ning, Ping-Fan ;

Liao, Qing-Wei .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2012, 95 (08) :2587-2592

[23] NdNb1-x(Mg1/4W3/4)xO4 (0.02 ≤x≤0.06) solid solution characterized by infrared spectrum and complex chemical theory [J].

Yang, Hongcheng ;

Zhang, Shuren ;

Yang, Hongyu ;

Yuan, Ying ;

Li, Enzhu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 787 :358-366

[24] Influence of (Al1/3W2/3)5+ co-substitution for Nb5+ in NdNbO4 and the impact on the crystal structure and microwave dielectric properties [J].

Yang, Hongcheng ;

Zhang, Shuren ;

Yang, Hongyu ;

Yuan, Ying ;

Li, Enzhu .

DALTON TRANSACTIONS, 2018, 47 (44) :15808-15815

[25] Intrinsic dielectric properties of columbite ZnNb2O6 ceramics studied by P-V-L bond theory and Infrared spectroscopy [J].

Yang, Hongyu ;

Zhang, Shuren ;

Yang, Hongcheng ;

Yuan, Ying ;

Li, Enzhu .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2019, 102 (09) :5365-5374

[26] Structural Evolution and Microwave Dielectric Properties of Article xZn0.5Ti0.5NbO4-(1-x)Zn0.15Nb0.3Ti0.55O2 Ceramics [J].

Yang, Hongyu ;

Zhang, Shuren ;

Yang, Hongcheng ;

Zhang, Xing ;

Li, Enzhu .

INORGANIC CHEMISTRY, 2018, 57 (14) :8264-8275

[27] Crystal Structure and Infrared Reflection Spectra of SrLn2Al2O7 (Ln = La, Nd, Sm) Microwave Dielectric Ceramics [J].

Yi, Lei ;

Liu, Xiao Qiang ;

Chen, Xiang Ming .

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2015, 12 :E33-E40

[28] Influence of Sm3+ substitutions for Nd3+ on the microwave dielectric properties of (Nd1-xSmx)NbO4 (x=0.02-0.15) ceramics [J].

Zhang, Ping ;

Zhao, Yonggui .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 654 :240-245

[29] Estimation thermal expansion coefficient from lattice energy for inorganic crystals [J].

Zhang, Siyuan ;

Li, Huiling ;

Zhou, Shihong ;

Pan, Tianqi .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (11) :8801-8804

[30] Influence of Ta substitution for Nb in Zn3Nb2O8 and the impact on the crystal structure and microwave dielectric properties [J].

Zhao, Yonggui ;

Zhang, Ping .

DALTON TRANSACTIONS, 2016, 45 (29) :11807-11816

← 1 2 3 4 →