Synthesis, characterization and dielectric properties of a novel temperature stable（1-x）CoTiNbO-xZnNbO ceramic

被引：0

作者：

Mengjuan WU ^{[1
]}

Yingchun ZHANG ^{[1
]}

Maoqiao XIANG ^{[2
]}

机构：

[1] School of Materials Science and Engineering, University of Science and Technology Beijing

[2] State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering,Chinese Academy of Sciences

来源：

Journal of Advanced Ceramics | 2019年 / 02期

关键词：

solid-state reaction; (1-x)CoT iN b2O8-x ZnN b2O6 ceramics; crystal structure; microwave dielectric property;

D O I：

暂无

中图分类号：

TQ174.7 [陶瓷制品];

学科分类号：

080503 ;

摘要：

(1-x)CoTiNb2O8-x ZnNb2O6 microwave dielectric ceramics were prepared via the conventional solid-state reaction route with the aim of reducing thet_f value and improving the thermal stability.The phase composition and the microstructure were investigated using X-ray diffraction,Raman spectra,and scanning electron microscopy.A set of phase transitions which were induced by composition had been confirmed via the sequence:rutile structure→coexistence of rutile and columbite phase→columbite phase.For（1-x）CoTiNb2O8-x ZnNb2O6 microwave dielectric ceramics,the addition of ZnNb2O6 content（x=0–1）led to the decrease ofer from 62.98 to 23.94.As a result of the high Q×?of ZnNb2O6 ceramics,the increase of ZnNb2O6 content also led to the lower sintering temperatures and the higher Q×?values.Thet_f value was reduced from+108.04（x=0）to–49.31 ppm/℃（x=1）.Among them,high density 0.5CoTiNb2O8-0.5ZnNb2O6 ceramics were obtained at 1175℃with excellent microwave dielectric properties of εr 39.2,Q×? 40013 GHz,and t_f+3.57 ppm/℃.

引用

页码：228 / 237

页数：10

共 14 条

[1]

Microwave dielectric properties of sol-gel derived NiZrNb 2 O 8 ceramics[J] . Mengjuan Wu,Yingchun Zhang,Jundan Chen,Maoqiao Xiang.Journal of Alloys and Compounds . 2018

[2]

Novel temperature stable Li2Mg3TiO6-SrTiO3 composite ceramics with high Q for LTCC applications[J] . Zhifen Fu,Jianli Ma,Peng Liu,Yuan Liu.Materials Chemistry and Physics . 2017

[3]

Optical phonon behaviors of columbite ZnNb 2 O 6 single crystal[J] . Dapeng Xu,Ying Liu,Qiang Zhou,Tian Cui,Hongming Yuan,Wenquan Wang,Zhan Shi,Liang Li.Journal of Alloys and Compounds . 2015

[4]

Microwave dielectric properties of low loss microwave dielectric ceramics: A 0.5 Ti 0.5 NbO 4 (A=Zn, Co)[J] . Ching-Fang Tseng.Journal of the European Ceramic Society . 2014 (15)

[5]

Structural, lattice vibrational, optical and microwave dielectric studies on Ca 1? x Sr x MoO 4 ceramics with scheelite structure[J] . S.D. Ramarao,S. Roopas Kiran,V.R.K. Murthy.Materials Research Bulletin . 2014

[6]

Microwave dielectric properties and structure of ZnO–Nb 2 O 5 –TiO 2 ceramics[J] . E.A. Nenasheva,S.S. Redozubov,N.F. Kartenko,I.M. Gaidamaka.Journal of the European Ceramic Society . 2010 (6)

[7]

Effects of structural characteristics on microwave dielectric properties of (1? x )Ca 0.85 Nd 0.1 TiO 3 – x LnAlO 3 (Ln=Sm, Er and Dy) ceramics[J] . Eung Soo Kim,Byung Sam Chun,Dong Ho Kang.Journal of the European Ceramic Society . 2006 (8)

[8]

EXPGUI, a graphical user interface for GSAS[J] . Brian H.Toby.J. Appl. Cryst. . 2004 (2)

[9] Tunability of τf in perovskites and related compounds [J].

Wise, PL ;

Reaney, IM ;

Lee, WE ;

Iddles, DM ;

Cannell, DS ;

Price, TJ .

JOURNAL OF MATERIALS RESEARCH, 2002, 17 (08) :2033-2040

[10]

Spectroscopic study of TiO 2 (rutile)–benzophenone heterogeneous systems[J] . T Bezrodna,T Gavrilko,G Puchkovska,V Shimanovska,J Baran,M Marchewka.Journal of Molecular Structure . 2002 (1)

← 1 2 →