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

[1] Enhanced densification and microwave dielectric properties of Mg2TiO4 ceramics added with CeO2 nanoparticles [J].

Bhuyan, R. K. ;

Kumar, T. Santhosh ;

Goswami, D. ;

James, A. R. ;

Perumal, A. ;

Pamu, D. .

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2013, 178 (07) :471-476

[2] DIELECTRIC-SPECTROSCOPY OF MGTIO3-BASED CERAMICS IN THE 10(9)-10(14) HZ REGION [J].

FERREIRA, VM ;

BAPTISTA, JL ;

KAMBA, S ;

PETZELT, J .

JOURNAL OF MATERIALS SCIENCE, 1993, 28 (21) :5894-5900

[3] Microwave and Infrared Dielectric Response of Temperature Stable (1-x)BaMoO4-xTiO2 Composite Ceramics [J].

Guo, Jing ;

Zhou, Di ;

Wang, Hong ;

Chen, Yuehua ;

Zeng, Yi ;

Xiang, Feng ;

Wu, Ying ;

Yao, Xi .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2012, 95 (01) :232-237

[4] Low-Loss Microwave Dielectrics in the (Mg1-xZnx)2TiO4 Ceramics [J].

Huang, Cheng-Liang ;

Liu, Shih-Sheng .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (10) :3428-3430

[5] Low-Loss Microwave Dielectrics Using Mg2(Ti1-xSnx)O4 (x = 0.01-0.09) Solid Solution [J].

Huang, Cheng-Liang ;

Chen, Jhih-Yong .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (10) :2237-2241

[6] Dielectric characteristics of the (1-x)Mg2TiO4-xSrTiO3 ceramic system at microwave frequencies [J].

Huang, Cheng-Liang ;

Liu, Shih-Sheng .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 471 (1-2) :L9-L12

[7] Low-Loss Microwave Dielectric Ceramics Using (Mg1-xMnx)2TiO4 (x=0.02-0.1) Solid Solution [J].

Huang, Cheng-Liang ;

Chen, Jhih-Yong .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (03) :675-678

[8] MICROWAVE CHARACTERISTICS AND FAR-INFRARED REFLECTION SPECTRA OF ZIRCONIUM TIN TITANATE DIELECTRICS [J].

KUDESIA, R ;

MCHALE, AE ;

CONDRATE, RA ;

SNYDER, RL .

JOURNAL OF MATERIALS SCIENCE, 1993, 28 (20) :5569-5575

[9] BOND SUSCEPTIBILITIES AND IONICITIES IN COMPLEX CRYSTAL-STRUCTURES [J].

LEVINE, BF .

JOURNAL OF CHEMICAL PHYSICS, 1973, 59 (03) :1463-1486

[10] A NEW CONTRIBUTION TO NONLINEAR OPTICAL SUSCEPTIBILITY ARISING FROM UNEQUAL ATOMIC RADII [J].

LEVINE, BF .

PHYSICAL REVIEW LETTERS, 1970, 25 (07) :440-&

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