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首页> 外文期刊>International Journal of Applied Ceramic Technology / Functional Ceramics >Effects of BaCu(B_2O_5) Addition on Phase Transition Sintering Temperature, and Microwave Properties of Ba_4LiNb_3O_(12) Ceramics
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Effects of BaCu(B_2O_5) Addition on Phase Transition Sintering Temperature, and Microwave Properties of Ba_4LiNb_3O_(12) Ceramics

机译：BaCu（B_2O_5）添加对Ba_4LiNb_3O_（12）陶瓷相变烧结温度及微波性能的影响

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摘要

Polycrystalline sample of Ba_4LiNb_3O_(12) is synthesized in the temperature range of 1150°-1180℃ by the conventional solid-state reaction method. A phase transition from cubic to hexagonal perovskite is observed around 1160℃ . It is noted that hexagonal phase of Ba_4LiNb_3O_(12) obtained at 1180℃ could be stabilized at a considerably lower temperature (～950℃ ) with BaCu(B_2O_5) (BCB) added. BCB addition effectively improves the densiflcation of Ba_4LiNb_3O_(12) ceramic and significantly affects the microwave dielectric properties. When 4 wt% BCB is added, a dense ceramic can be sintered at 950℃ with a ε_r of 34.5, a high Q ×/of 29 600 GHz, and a low τ_f of 12.4 ppm/℃ . Moreover, BCB-added Ba_4LiNb_3O_(12) ceramics have a chemical compatibility with silver.
机译：采用常规固相反应方法，在1150°-1180℃的温度范围内合成了Ba_4LiNb_3O_（12）多晶样品。在1160℃左右观察到从立方钙钛矿到六方钙钛矿的相变。需要注意的是，添加BaCu（B_2O_5）（BCB）可以将在1180℃下获得的Ba_4LiNb_3O_（12）的六方相稳定在相当低的温度（〜950℃）下。 BCB的添加可有效改善Ba_4LiNb_3O_（12）陶瓷的致密化，并显着影响微波介电性能。当添加4 wt％的BCB时，可以在950℃烧结致密陶瓷，其ε_r为34.5，高Q×/为29 600 GHz，低τ_f为12.4 ppm /℃。此外，添加BCB的Ba_4LiNb_3O_（12）陶瓷具有与银的化学相容性。

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    Liang Fang; Dongjin Chu; Chunchun Li; Huanfu Zhou; Zhao Yang;

  • 作者单位

    State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, Guilin University of Technology,Guilin 541004, China,Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology,Guilin 541004, China;

    State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, Guilin University of Technology,Guilin 541004, China,Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology,Guilin 541004, China;

    Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology,Guilin 541004, China;

    State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, Guilin University of Technology,Guilin 541004, China,Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology,Guilin 541004, China;

    State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, Guilin University of Technology,Guilin 541004, China,Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology,Guilin 541004, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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  • 入库时间 2022-08-17 13:39:20

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