Influence of Al2O3 on the Dielectric Properties of Magnesium Lanthanum Titanate Ceramics

Abstract

Abstract: Magnesium lanthanum titanate ceramics were prepared.The influence of Al₂O₃ on the dielectric properties of magnesium lanthanum titanate ceramics was studied by XRD, SEM. The study shows that with the increase of the content of Al₂O₃, the εr decreases, and the quality factor Q(Q=1/tgδ) values can be up to 14430 at 10GHz. The main crystal phase of the sample without Al₂O₃ is MgTiO₃ with small amount of La_0.66TiO_2.99; with Al₂O₃ added, new crystal phases MgAl₂O₄ and Mg₄Al₂Ti₉O₂₅ s.s appeare, meanwhile, the grain size of materials reduces obviously.

Key words: microwave material, magnesium lanthanum titanate ceramics, dielectric properties

CLC Number:

TQ174

WANG Kang-Song,LUO Lan,ZHANG Gan-Cheng. Influence of Al₂O₃ on the Dielectric Properties of Magnesium Lanthanum Titanate Ceramics[J]. Journal of Inorganic Materials.

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[4]	HAN Lin-Cai, DING Shi-Hua, SONG Tian-Xiu, HUANG Long, ZHANG Xiao-Yun, XIONG Zhong. ZBAS on the Structure and Dielectric Property of BaAl₂Si₂O₈ [J]. Journal of Inorganic Materials, 2018, 33(8): 883-888.
[5]	QU Jing-Jing, WEI Xing, LIU Fei, YUAN Chang-Lai, CHEN Guo-Hua, HUANG Xian-Pei. Heat-treatment on Crystallization and Dielecty Property of Mg-Al-Si-Ti-B Glass-ceramics [J]. Journal of Inorganic Materials, 2018, 33(12): 1309-1315.
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[7]	QU Jing-Jing, WEI Xing, SONG Xiao-Hui, YUAN Chang-Lai, LIU Fei. B-site Substitution by (Mg_1/3Ta_2/3)⁴⁺ on Structures and Dielectric Properties of New Sr-based (Sr, Nd, Ca)TiO₃ Microwave Ceramics [J]. Journal of Inorganic Materials, 2017, 32(3): 293-298.
[8]	ZHANG Yao, DING Shi-Hua, LIU Yang-Qiong, DUAN Shao-Ying, XIAO Peng, HAN Lin-Cai. Crystal Structure and Microwave Dielectric Property of Ba_1-_xMg_xAl₂Si₂O₈ [J]. Journal of Inorganic Materials, 2017, 32(1): 91-95.
[9]	SUN Qing-Lei, ZHOU Hong-Qing, QIAN-Lei, WANG Ya-Zhou, ZHU Hai-Kui, YUE Zhen-Xing. Effects of MgO, SrO and La₂O₃ Co-doping on Structure and Properties of (Zr_0.8Sn_0.2)TiO₄ Ceramics [J]. Journal of Inorganic Materials, 2016, 31(8): 812-818.
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Influence of Al₂O₃ on the Dielectric Properties of Magnesium Lanthanum Titanate Ceramics

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