کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5441442 | 1510387 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of P2O5 on crystallization, sinterability and microwave dielectric properties of MgO-Al2O3-SiO2-TiO2 glass-ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of P2O5 on crystallization, sinterability and microwave dielectric properties of MgO-Al2O3-SiO2-TiO2 glass-ceramics Effects of P2O5 on crystallization, sinterability and microwave dielectric properties of MgO-Al2O3-SiO2-TiO2 glass-ceramics](/preview/png/5441442.png)
چکیده انگلیسی
Glass-ceramics of MgO-Al2O3-SiO2-TiO2-P2O5 were prepared by two-step heat-treatment at selected nucleation temperature and followed by crystallization temperatures. After the addition of 2.5 wt.% P2O5, the MgO-Al2O3-SiO2-TiO2-P2O5 glass-ceramics (abbreviated as P2.5) can be fully precipitated at â¤Â 950 °C. The predominant phases in the glass-ceramics are found to be Mg2SiO4, Mg2Al4Si5O18, Ti4Si2P6O25 and SiO2 in the crystallization temperature range of 930- 970 °C. The results showed that P5 + could promote the phase separation of MgO-Al2O3-SiO2-TiO2 glass and that the glass was divided into two areas, such as Mg2SiO4 and the containing P5 + area at â¤Â 950 °C. Furthermore, P5 + inhibited the presence of Mg2Al4Si5O18 when the heat treatment temperature was â¥Â 950 °C. The 19.0MgO-23.0Al2O3-53.0SiO2-4.0TiO2-2.5P2O5 (wt.%) glass-ceramics (abbreviated as P2.5) exhibits the ultra-low dielectric constant εr ~ 3.9- 4.0 ± 0.1, a high quality factor Q Ã f ~ 13,785 ± 50 GHz at 13- 14 GHz and a near-zero temperature coefficient of resonant frequency Ïf ~ â 7.8 to â 6.4 ± 0.1 ppm/°C, suggesting that it will be a promising material in LTCC technologies. With the further increase of the P2O5 content up to 3.5 wt.%, the linear shrinkage, the density and dielectric properties inversely deteriorate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 459, 1 March 2017, Pages 123-129
Journal: Journal of Non-Crystalline Solids - Volume 459, 1 March 2017, Pages 123-129
نویسندگان
Xianpei Huang, Changlai Yuan, Xinyu Liu, Fei Liu, Qin Feng, Jiwen Xu, Changrong Zhou, Guohua Chen,