Effect of Li2CO3 on the properties of 0.7CaTiO3-0.3SmAlO3 ceramics

Ming Jie Xu; Chun E. Huang; Chun Ying Shen; Tai Qiu

Effect of Li₂CO₃ on the properties of 0.7CaTiO₃-0.3SmAlO₃ ceramics

Ming Jie Xu, Chun E. Huang, Chun Ying Shen, Tai Qiu

College of Materials Science and Engineering

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

1 Scopus citations

Abstract

The effects of Li₂CO₃ additive on the properties of microwave dielectric material based on CSTA ceramic by conventional solid-state route were investigated. The results show that moderate addition of Li₂CO₃ effectively decreased the sintering temperature which droped from 1500°C to 1380°C. The XRD results suggest that addition of Li₂CO₃ doesn't change the crystal phase of ceramics. SEM analysis results show that Li₂CO₃ will inhibit grain growth. When the CSTA ceramics add 0.1wt% Li₂CO₃, grain size is small, evenly distributed. With the increasing of Li₂CO₃ additives, the glass phase increases, and some grains grow and unevenly distribute, which decreases the Q·f values. The CSTA ceramics doped with 0.1wt% Li₂CO₃ and sintered at 1380°C have the optimal microwave dielectric properties: ε_r=45.09, Q·f=61600 GHz (f=6.417 GHz), τ_f=+7.54×10^-6/°C.

Original language	English
Pages (from-to)	1115-1120
Number of pages	6
Journal	Rengong Jingti Xuebao/Journal of Synthetic Crystals
Volume	43
Issue number	5
State	Published - May 2014

Keywords

CSTA ceramic
Microwave dielectric ceramic

Cite this

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title = "Effect of Li2CO3 on the properties of 0.7CaTiO3-0.3SmAlO3 ceramics",

abstract = "The effects of Li2CO3 additive on the properties of microwave dielectric material based on CSTA ceramic by conventional solid-state route were investigated. The results show that moderate addition of Li2CO3 effectively decreased the sintering temperature which droped from 1500°C to 1380°C. The XRD results suggest that addition of Li2CO3 doesn't change the crystal phase of ceramics. SEM analysis results show that Li2CO3 will inhibit grain growth. When the CSTA ceramics add 0.1wt% Li2CO3, grain size is small, evenly distributed. With the increasing of Li2CO3 additives, the glass phase increases, and some grains grow and unevenly distribute, which decreases the Q·f values. The CSTA ceramics doped with 0.1wt% Li2CO3 and sintered at 1380°C have the optimal microwave dielectric properties: εr=45.09, Q·f=61600 GHz (f=6.417 GHz), τf=+7.54×10-6/°C.",

keywords = "CSTA ceramic, Microwave dielectric ceramic",

author = "Xu, {Ming Jie} and Huang, {Chun E.} and Shen, {Chun Ying} and Tai Qiu",

year = "2014",

month = may,

language = "英语",

volume = "43",

pages = "1115--1120",

journal = "Rengong Jingti Xuebao/Journal of Synthetic Crystals",

issn = "1000-985X",

publisher = "Chinese Ceramic Society",

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TY - JOUR

T1 - Effect of Li2CO3 on the properties of 0.7CaTiO3-0.3SmAlO3 ceramics

AU - Xu, Ming Jie

AU - Huang, Chun E.

AU - Shen, Chun Ying

AU - Qiu, Tai

PY - 2014/5

Y1 - 2014/5

N2 - The effects of Li2CO3 additive on the properties of microwave dielectric material based on CSTA ceramic by conventional solid-state route were investigated. The results show that moderate addition of Li2CO3 effectively decreased the sintering temperature which droped from 1500°C to 1380°C. The XRD results suggest that addition of Li2CO3 doesn't change the crystal phase of ceramics. SEM analysis results show that Li2CO3 will inhibit grain growth. When the CSTA ceramics add 0.1wt% Li2CO3, grain size is small, evenly distributed. With the increasing of Li2CO3 additives, the glass phase increases, and some grains grow and unevenly distribute, which decreases the Q·f values. The CSTA ceramics doped with 0.1wt% Li2CO3 and sintered at 1380°C have the optimal microwave dielectric properties: εr=45.09, Q·f=61600 GHz (f=6.417 GHz), τf=+7.54×10-6/°C.

AB - The effects of Li2CO3 additive on the properties of microwave dielectric material based on CSTA ceramic by conventional solid-state route were investigated. The results show that moderate addition of Li2CO3 effectively decreased the sintering temperature which droped from 1500°C to 1380°C. The XRD results suggest that addition of Li2CO3 doesn't change the crystal phase of ceramics. SEM analysis results show that Li2CO3 will inhibit grain growth. When the CSTA ceramics add 0.1wt% Li2CO3, grain size is small, evenly distributed. With the increasing of Li2CO3 additives, the glass phase increases, and some grains grow and unevenly distribute, which decreases the Q·f values. The CSTA ceramics doped with 0.1wt% Li2CO3 and sintered at 1380°C have the optimal microwave dielectric properties: εr=45.09, Q·f=61600 GHz (f=6.417 GHz), τf=+7.54×10-6/°C.

KW - CSTA ceramic

KW - Microwave dielectric ceramic

UR - http://www.scopus.com/inward/record.url?scp=84902601372&partnerID=8YFLogxK

M3 - 文章

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SN - 1000-985X

VL - 43

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EP - 1120

JO - Rengong Jingti Xuebao/Journal of Synthetic Crystals

JF - Rengong Jingti Xuebao/Journal of Synthetic Crystals

IS - 5

ER -

Effect of Li₂CO₃ on the properties of 0.7CaTiO₃-0.3SmAlO₃ ceramics

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