Effects of V5+ Substitution on the Dielectric Properties of Mg(SbNb1-xV xO9 Ceramics

doi:10.3724/SP.J.1077.2008.00877

Abstract

Abstract: The effects of V⁵⁺ substitution on the sintering characters, microstructure and microwave dielectric properties of Mg₄(SbNb_1-xV_xO₉ ceramics were investigated. Results show that a small amount of V⁵⁺ substitution for Nb⁵⁺ can lower the sintering temperature of Mg₄(Nb_2-xSb_x)O₉ drastically. In all composition range investigated, the sintered ceramics show single phase with corundum structure. With increasing of V⁵⁺ content, the dielectric constant (ε) and quality factor (Q·f) increase and thereafter decrease, respectively, the temperature coefficient of resonant frequencies τ f decreases which is due to the strengthened B site-bond valence caused by V⁵⁺ substitution. The ceramics with x=0.15 sintered at 1250℃ has a relative dielectric constant ε_r of 9.98, a quality factor Q·f value of 20248GHz (at 8GHz) and a temperature coefficient of resonant frequencies τ f value of --23.3×10-6K^-1.

Key words: microwave dielectric ceramics, Mg₄(SbNb_1-xV_x)O₉, dielectric properties

CLC Number:

TQ174

YAO Guo-Guang,LIU Peng. Effects of V⁵⁺ Substitution on the Dielectric Properties of Mg(SbNb_1-xV ^_xO₉ Ceramics[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2008.00877.

[1]	WEI Tingting, XU Huarui, ZHU Guisheng, LONG Shenfeng, ZHANG Xiuyun, ZHAO Yunyun, JIANG Xupeng, SONG Jinjie, GUO Ningjie, GONG Yipeng. Preparation and Properties of BaTiO₃ Ceramics by Low Temperature Cold Sintering [J]. Journal of Inorganic Materials, 2022, 37(8): 903-910.
[2]	YAO Xiaogang, PENG Haiyi, GU Zhongyuan, HE Fei, ZHAO Xiangyu, LIN Huixing. Polyphenylene Oxide/Ca_0.7La_0.2TiO₃ Microwave Composite Substrate [J]. Journal of Inorganic Materials, 2022, 37(5): 493-498.
[3]	Gang JIAN, Mei-Rui LIU, Chen ZHANG, Hui SHAO. Preparation of Fully-coated Ag@TiO₂ Particle Fillers for High-k Composites [J]. Journal of Inorganic Materials, 2019, 34(6): 641-645.
[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.
[6]	LIU Fei, HUANG Xian-Pei, YUAN Chang-Lai, CHEN Guo-Hua. Influence of Sintering Temperature and CaTiO₃ Doping on Structure and Dielectric Properties for Instability Layered Ca_n₊₁Ti_nO₃_n+₁(n = 1) Ceramics [J]. Journal of Inorganic Materials, 2017, 32(5): 489-494.
[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.
[10]	ZHANG Kang, LI Wei, LIN Hui-Xin. Effect of MgO/ Eu₂O₃ Co-doping on the Microwave Dielectric Properties of Al₂O₃ Ceramics [J]. Journal of Inorganic Materials, 2015, 30(9): 984-988.
[11]	XIE Hui-Dong, LI Fei, CHEN Chao, XI Hai-Hong, SHI Ling. Microwave Dielectric Properties of LaPO₄ Ceramics Synthesized by a Hydrothermal Method [J]. Journal of Inorganic Materials, 2015, 30(8): 882-886.
[12]	XIE Hui-Dong, XI Hai-Hong, LI Fei, CHEN Chao. Microwave Dielectric Properties of BiMg₂VO₆ Ceramic with Low Sintering Temperature [J]. Journal of Inorganic Materials, 2015, 30(2): 202-206.
[13]	ZHAO Xue-Tong, REN Lu-Lu, LIAO Rui-Jin, LI Jian-Ying, WANG Fei-Peng. Effect of the Oxidizing Atmosphere on the Microstructure and Dielectric Properties of CaCu₃Ti₄O₁₂ Ceramics [J]. Journal of Inorganic Materials, 2015, 30(12): 1303-1309.
[14]	QU Jing-Jing, WEI Xing, JING Ben-Qin, LIU Fei, YUAN Chang-Lai. Microstructure and Microwave Dielectric Property of (1-x)(Sr_0.2Nd_0.208Ca_0.488)TiO₃-xNd(Ti_0.5Mg_0.5)O₃ Ceramics with High Quality Factor [J]. Journal of Inorganic Materials, 2015, 30(11): 1213-1217.
[15]	LI Jian-Ying, HOU Lin-Lin, JIA Ran, GAO Lu, WU Kang-Ning, LI Sheng-Tao. Influences of CuAl₂O₄ Doping on the Dielectric Properties of CaCu₃Ti₄O₁₂ Ceramics [J]. Journal of Inorganic Materials, 2015, 30(10): 1056-1062.

Effects of V⁵⁺ Substitution on the Dielectric Properties of Mg(SbNb_1-xV ^_xO₉ Ceramics

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments