Effect of la doping on microwave dielectric properties of translucent polycrystalline alumina ceramic

Huijun Wang; Huixing Lin; Wei Li; Jianlin Shi

doi:10.1016/j.ceramint.2012.11.084

Effect of la doping on microwave dielectric properties of translucent polycrystalline alumina ceramic

Huijun Wang
, Huixing Lin
, Wei Li^*
, Jianlin Shi

^*Corresponding author for this work

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

19 Scopus citations

Abstract

In this paper, the microstructure and microwave dielectric properties of translucent polycrystalline alumina (PCA) with different amounts of La ₂O₃ (co-doped with 500 ppm MgO) were investigated. Compared with those doped only with 500 ppm MgO, the translucent PCA co-doped with 500 ppm La₂O₃ exhibited a higher Q×f value, which might be caused by the significantly larger ionic radius of La ³⁺. As the La₂O₃ content was further increased, the presence of an increasing amount of impurities (LaAl₁₁O ₁₈) would deteriorate the Q×f value significantly.

Original language	English
Pages (from-to)	4907-4911
Number of pages	5
Journal	Ceramics International
Volume	39
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2012.11.084
State	Published - Jul 2013
Externally published	Yes

Keywords

B. Grain size
B. Impurities
C. Dielectric properties
D. Al O

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10.1016/j.ceramint.2012.11.084

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@article{e7aba480118945b7895a9f2e3f1e3adb,

title = "Effect of la doping on microwave dielectric properties of translucent polycrystalline alumina ceramic",

abstract = "In this paper, the microstructure and microwave dielectric properties of translucent polycrystalline alumina (PCA) with different amounts of La 2O3 (co-doped with 500 ppm MgO) were investigated. Compared with those doped only with 500 ppm MgO, the translucent PCA co-doped with 500 ppm La2O3 exhibited a higher Q×f value, which might be caused by the significantly larger ionic radius of La 3+. As the La2O3 content was further increased, the presence of an increasing amount of impurities (LaAl11O 18) would deteriorate the Q×f value significantly.",

keywords = "B. Grain size, B. Impurities, C. Dielectric properties, D. Al O",

author = "Huijun Wang and Huixing Lin and Wei Li and Jianlin Shi",

year = "2013",

month = jul,

doi = "10.1016/j.ceramint.2012.11.084",

language = "英语",

volume = "39",

pages = "4907--4911",

journal = "Ceramics International",

issn = "0272-8842",

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TY - JOUR

T1 - Effect of la doping on microwave dielectric properties of translucent polycrystalline alumina ceramic

AU - Wang, Huijun

AU - Lin, Huixing

AU - Li, Wei

AU - Shi, Jianlin

PY - 2013/7

Y1 - 2013/7

N2 - In this paper, the microstructure and microwave dielectric properties of translucent polycrystalline alumina (PCA) with different amounts of La 2O3 (co-doped with 500 ppm MgO) were investigated. Compared with those doped only with 500 ppm MgO, the translucent PCA co-doped with 500 ppm La2O3 exhibited a higher Q×f value, which might be caused by the significantly larger ionic radius of La 3+. As the La2O3 content was further increased, the presence of an increasing amount of impurities (LaAl11O 18) would deteriorate the Q×f value significantly.

AB - In this paper, the microstructure and microwave dielectric properties of translucent polycrystalline alumina (PCA) with different amounts of La 2O3 (co-doped with 500 ppm MgO) were investigated. Compared with those doped only with 500 ppm MgO, the translucent PCA co-doped with 500 ppm La2O3 exhibited a higher Q×f value, which might be caused by the significantly larger ionic radius of La 3+. As the La2O3 content was further increased, the presence of an increasing amount of impurities (LaAl11O 18) would deteriorate the Q×f value significantly.

KW - B. Grain size

KW - B. Impurities

KW - C. Dielectric properties

KW - D. Al O

UR - https://www.scopus.com/pages/publications/84875715019

U2 - 10.1016/j.ceramint.2012.11.084

DO - 10.1016/j.ceramint.2012.11.084

M3 - 文章

AN - SCOPUS:84875715019

SN - 0272-8842

VL - 39

SP - 4907

EP - 4911

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Effect of la doping on microwave dielectric properties of translucent polycrystalline alumina ceramic

Abstract

Keywords

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