Study on the (1-x)(Mg0.7Zn0.3)TiO3-x (Ca0.61Nd0.26)TiO3 microwave dielectric ceramics

Zheng Dong Lu; Chun Ying Shen; Liang Li; Jian Yang; Tai Qiu

doi:10.3724/SP.J.1077.2010.09527

Study on the (1-x)(Mg_0.7Zn_0.3)TiO_3-x (Ca_0.61Nd_0.26)TiO₃ microwave dielectric ceramics

Zheng Dong Lu, Chun Ying Shen, Liang Li, Jian Yang, Tai Qiu

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

Abstract

The microwave dielectric properties of the (1-x)(Mg_0.7Zn_0.3)TiO₃- x(Ca_0.61Nd_0.26)TiO₃(MZCNT) system were investigated. The system was prepared using a conventional solid-state ceramic route. The objective of the present work is to compensate for the negative temperature coefficient of resonant frequency (τ_f) of (Mg_0.7Zn_0.3) TiO₃ by the addition of (Ca_0.61Nd_0.26) TiO₃. The microwave dielectric properties are strongly correlated with the sintering temperature and the composition. Very dense MZCNT ceramics were synthesized by sintering at 1250°C, when sintered at temperatures above 1300°C, the decomposition of (Ca_0.61Nd_0.26) TiO₃ and evaporation of Zn resulted the decrease in density and degradation in dielectric properties. With increasing (Ca_0.61Nd_0.26) TiO₃, the dielectric constant (ε_r) increased and the quality factor Q×f decreased. For practical application, 0.87(Mg_0.7Zn_0.3) TiO₃- 0.13(Ca_0.61Nd_0.26) TiO₃ ceramics sintered at 1250°C with a dielectric constant ε_r~24.3, a Q×f value of 34000GHz and a temperature coefficient of resonance frequency (τ_f) of -9×10^-6/°C is proposed in this paper.

Original language	English
Pages (from-to)	332-336
Number of pages	5
Journal	Wuji Cailiao Xuebao/Journal of Inorganic Materials
Volume	25
Issue number	3
DOIs	https://doi.org/10.3724/SP.J.1077.2010.09527
State	Published - Mar 2010

Keywords

(1-x)(MgZn) TiO(CaNd)TiO ceramics
Dielectric constant
Quality factor
Temperature stable resonant frequenc

Access to Document

10.3724/SP.J.1077.2010.09527

Cite this

@article{34e796512226485fbda64fc7c127d690,

title = "Study on the (1-x)(Mg0.7Zn0.3)TiO3-x (Ca0.61Nd0.26)TiO3 microwave dielectric ceramics",

abstract = "The microwave dielectric properties of the (1-x)(Mg0.7Zn0.3)TiO3- x(Ca0.61Nd0.26)TiO3(MZCNT) system were investigated. The system was prepared using a conventional solid-state ceramic route. The objective of the present work is to compensate for the negative temperature coefficient of resonant frequency (τf) of (Mg0.7Zn0.3) TiO3 by the addition of (Ca0.61Nd0.26) TiO3. The microwave dielectric properties are strongly correlated with the sintering temperature and the composition. Very dense MZCNT ceramics were synthesized by sintering at 1250°C, when sintered at temperatures above 1300°C, the decomposition of (Ca0.61Nd0.26) TiO3 and evaporation of Zn resulted the decrease in density and degradation in dielectric properties. With increasing (Ca0.61Nd0.26) TiO3, the dielectric constant (εr) increased and the quality factor Q×f decreased. For practical application, 0.87(Mg0.7Zn0.3) TiO3- 0.13(Ca0.61Nd0.26) TiO3 ceramics sintered at 1250°C with a dielectric constant εr~24.3, a Q×f value of 34000GHz and a temperature coefficient of resonance frequency (τf) of -9×10-6/°C is proposed in this paper.",

keywords = "(1-x)(MgZn) TiO(CaNd)TiO ceramics, Dielectric constant, Quality factor, Temperature stable resonant frequenc",

author = "Lu, {Zheng Dong} and Shen, {Chun Ying} and Liang Li and Jian Yang and Tai Qiu",

year = "2010",

month = mar,

doi = "10.3724/SP.J.1077.2010.09527",

language = "英语",

volume = "25",

pages = "332--336",

journal = "Wuji Cailiao Xuebao/Journal of Inorganic Materials",

issn = "1000-324X",

publisher = "Science China Press",

number = "3",

}

TY - JOUR

T1 - Study on the (1-x)(Mg0.7Zn0.3)TiO3-x (Ca0.61Nd0.26)TiO3 microwave dielectric ceramics

AU - Lu, Zheng Dong

AU - Shen, Chun Ying

AU - Li, Liang

AU - Yang, Jian

AU - Qiu, Tai

PY - 2010/3

Y1 - 2010/3

N2 - The microwave dielectric properties of the (1-x)(Mg0.7Zn0.3)TiO3- x(Ca0.61Nd0.26)TiO3(MZCNT) system were investigated. The system was prepared using a conventional solid-state ceramic route. The objective of the present work is to compensate for the negative temperature coefficient of resonant frequency (τf) of (Mg0.7Zn0.3) TiO3 by the addition of (Ca0.61Nd0.26) TiO3. The microwave dielectric properties are strongly correlated with the sintering temperature and the composition. Very dense MZCNT ceramics were synthesized by sintering at 1250°C, when sintered at temperatures above 1300°C, the decomposition of (Ca0.61Nd0.26) TiO3 and evaporation of Zn resulted the decrease in density and degradation in dielectric properties. With increasing (Ca0.61Nd0.26) TiO3, the dielectric constant (εr) increased and the quality factor Q×f decreased. For practical application, 0.87(Mg0.7Zn0.3) TiO3- 0.13(Ca0.61Nd0.26) TiO3 ceramics sintered at 1250°C with a dielectric constant εr~24.3, a Q×f value of 34000GHz and a temperature coefficient of resonance frequency (τf) of -9×10-6/°C is proposed in this paper.

AB - The microwave dielectric properties of the (1-x)(Mg0.7Zn0.3)TiO3- x(Ca0.61Nd0.26)TiO3(MZCNT) system were investigated. The system was prepared using a conventional solid-state ceramic route. The objective of the present work is to compensate for the negative temperature coefficient of resonant frequency (τf) of (Mg0.7Zn0.3) TiO3 by the addition of (Ca0.61Nd0.26) TiO3. The microwave dielectric properties are strongly correlated with the sintering temperature and the composition. Very dense MZCNT ceramics were synthesized by sintering at 1250°C, when sintered at temperatures above 1300°C, the decomposition of (Ca0.61Nd0.26) TiO3 and evaporation of Zn resulted the decrease in density and degradation in dielectric properties. With increasing (Ca0.61Nd0.26) TiO3, the dielectric constant (εr) increased and the quality factor Q×f decreased. For practical application, 0.87(Mg0.7Zn0.3) TiO3- 0.13(Ca0.61Nd0.26) TiO3 ceramics sintered at 1250°C with a dielectric constant εr~24.3, a Q×f value of 34000GHz and a temperature coefficient of resonance frequency (τf) of -9×10-6/°C is proposed in this paper.

KW - (1-x)(MgZn) TiO(CaNd)TiO ceramics

KW - Dielectric constant

KW - Quality factor

KW - Temperature stable resonant frequenc

UR - http://www.scopus.com/inward/record.url?scp=77952001170&partnerID=8YFLogxK

U2 - 10.3724/SP.J.1077.2010.09527

DO - 10.3724/SP.J.1077.2010.09527

M3 - 文章

AN - SCOPUS:77952001170

SN - 1000-324X

VL - 25

SP - 332

EP - 336

JO - Wuji Cailiao Xuebao/Journal of Inorganic Materials

JF - Wuji Cailiao Xuebao/Journal of Inorganic Materials

IS - 3

ER -

Study on the (1-x)(Mg_0.7Zn_0.3)TiO_3-x (Ca_0.61Nd_0.26)TiO₃ microwave dielectric ceramics

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this