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Effect of Ce3+Doping on 0.65CaTiO3-0.35LaAlO3 Microwave Dielectric Ceramics
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Jieyu LUO, Yueming LI, Zhike LI, Zhumei WANG, Yan HONG, Zongyang SHEN
Journal of the Chinese Ceramic Society | 2020, 48(9) : 1383 - 1389
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Journal of the Chinese Ceramic Society | 2020, 48(9): 1383-1389
Effect of Ce3+Doping on 0.65CaTiO3-0.35LaAlO3 Microwave Dielectric Ceramics
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Jieyu LUO, Yueming LI, Zhike LI, Zhumei WANG, Yan HONG, Zongyang SHEN
Affiliations
  • School of Materials Science and Engineering, Jingdezhen Ceramic Institute; China National Light Industry Key Laboratory of Functional Ceramic Materials; Energy Storage and Conversion Ceramic Materials Engineering Laboratory of Jiangxi Province; Jingdezhen 333403, Jiangxi, China

    • LUO Jieyu (1994-), male, Master candidate. E-mail:

About Author:

LUO Jieyu (1994-), male, Master candidate. E-mail:

Published: 2020-09-20 doi: 10.14062/j.issn.0454-5648.20190806
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0.65CaTiO3-0.35(La1-xCex)AlO3 (CTLCA-x) microwave dielectric ceramic was successfully synthesized by the polymeric precursor method using EDTA as a chelating agent. The effects of Ce3+ ion doping on the microwave dielectric properties, microscopic structure and crystal structure were studied. The result indicated that the sintering temperature of CTLCA-x ceramic prepared by polymer precursor method was decreased by about 125 ℃ compared with conventional mixed solid method, a single orthorhombic phase for all the compositions can form and the unit cell volume increases linearly with the doping content x. Ce3+ ion dopant can increased the quality factor and dielectric constant, but the temperature coefficient of resonant frequency decreased. When x = 0.2, the optimal microwave dielectric properties of εr=42.7, Q×f=39 159 GHz, and τf= -7×10-6/℃ for the CTLCA-0.2 ceramics could be obtained, which sintered at 1 325 ℃ for 3 h.

microwave dielectric ceramic  /  polymeric precursor method  /  high quality factor  /  cerium ion-doped
罗捷宇, 李月明, 李志科, 王竹梅, 洪燕, 沈宗洋. Ce3+掺杂对0.65CaTiO3-0.35LaAlO3陶瓷微波介电性能的影响. 硅酸盐学报, 2020 , 48 (9) : 1383 -1389 . DOI: 10.14062/j.issn.0454-5648.20190806
Jieyu LUO, Yueming LI, Zhike LI, Zhumei WANG, Yan HONG, Zongyang SHEN. Effect of Ce3+Doping on 0.65CaTiO3-0.35LaAlO3 Microwave Dielectric Ceramics[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (9) : 1383 -1389 . DOI: 10.14062/j.issn.0454-5648.20190806
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Year 2020 volume 48 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20190806
  • Receive Date：2019-12-11
  • Online Date：2026-10-29
  • Published：2020-09-20
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History
  • Received：2019-12-11
  • Revised：2019-12-15
Funding
Affiliations
    School of Materials Science and Engineering, Jingdezhen Ceramic Institute; China National Light Industry Key Laboratory of Functional Ceramic Materials; Energy Storage and Conversion Ceramic Materials Engineering Laboratory of Jiangxi Province; Jingdezhen 333403, Jiangxi, China

Corresponding:

LI Yueming (1965-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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