کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10626110 | 989643 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of the B2O3 addition on the sintering behavior and microwave dielectric properties of Ba3(VO4)2-Zn1.87SiO3.87 composite ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of the B2O3 addition on the low-temperature sintering, microstructure and microwave dielectric properties of the Ba3(VO4)2-Zn1.87SiO3.87 composite ceramics was investigated. The results indicate that the addition of B2O3 can effectively promote the densification and further improve the microwave dielectric properties of the composite. The low-temperature sintering mechanism was ascribed to the formation of the liquid phase owing to the reaction between the additive B2O3 and the residual SiO2 in the composite. B2O3-SiO2 liquid phases can not only lower the sintering temperature, but also speed up the grain growth of the composite ceramics. The rapid grain growth occurs as the B2O3 content is more than 6 wt%. The 3 wt% B2O3 doped 0.5Ba3(VO4)2-0.5Zn1.87SiO3.87 ceramics can be well sintered at 925 °C and exhibit excellent microwave dielectric properties of QÃfâ¼40,800 GHz, εrâ¼10 and Ïfâ¼0.5 ppm/°C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 39, Issue 3, April 2013, Pages 2545-2550
Journal: Ceramics International - Volume 39, Issue 3, April 2013, Pages 2545-2550
نویسندگان
Yang Lv, Ruzhong Zuo,