کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1651947 | 1517339 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave dielectric properties of novel lithium containing pyrochlore type oxides: Li3Sm3 â xBixTi7Nb2O25 (x = 0, 1, 2 or 3)
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microwave dielectric properties of novel lithium containing pyrochlore type oxides: Li3Sm3 â xBixTi7Nb2O25 (x = 0, 1, 2 or 3) Microwave dielectric properties of novel lithium containing pyrochlore type oxides: Li3Sm3 â xBixTi7Nb2O25 (x = 0, 1, 2 or 3)](/preview/png/1651947.png)
چکیده انگلیسی
Microwave dielectric properties of novel lithium ion containing pyrochlore type oxides: Li3Sm3 â xBixTi7Nb2O25 (x = 0, 1, 2 or 3) have been reported in this paper. Powder X-ray diffraction patterns show that these oxides have cubic pyrochlore type structure. Ceramic microstructure of the sintered samples show well formed grains. They have relatively high dielectric constant (εr) in the range 80-137 at 1 MHz and εr, 45-83 at the resonant microwave frequency region. It is seen that the dielectric constant (εr) increases with the increase of Bi content. The best microwave dielectric properties obtained for fully substituted samarium compound, Li3Sm3Ti7Nb2O25 are as follows: Q Ã f = 2007 and εr = 45 at the resonant microwave frequency, 3.78 GHz.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 61, Issues 19â20, August 2007, Pages 4188-4191
Journal: Materials Letters - Volume 61, Issues 19â20, August 2007, Pages 4188-4191
نویسندگان
P. Prabhakar Rao, K. Ravindran Nair, Peter Koshy, V.K. Vaidyan,