کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625843 | 989634 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructural variation and dielectric properties of KTiNbO5 and K3Ti5NbO14 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: Microstructural variation and dielectric properties of KTiNbO5 and K3Ti5NbO14 ceramics Microstructural variation and dielectric properties of KTiNbO5 and K3Ti5NbO14 ceramics](/preview/png/10625843.png)
چکیده انگلیسی
KTiNbO5 (KTN) and K3Ti5NbO14 (3K5TN) ceramics sintered at 1150 °C and 1125 °C, respectively, exhibited a dense, homogeneous microstructure with a high relative density (â¥96% of the theoretical density). Abnormal grain growth occurred in both specimens during sintering, and large (002) and (001) grains developed in KTN and 3K5TN ceramics, respectively. A dielectric constant (εr) of 13 and a dielectric loss of 2.9% at 10 MHz were obtained from KTN ceramics sintered at 1150 °C. The 3K5TN ceramics sintered at 1125 °C showed an εr of 15 and a dielectric loss of 12% at 10 MHz. The resistivity of KTN and 3K5TN ceramics was low and their εr and dielectric loss values displayed low-frequency dispersion (LFD); the presence of K+ ions between the layers could be responsible for their low resistivity and LFD.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 4, May 2014, Pages 5861-5867
Journal: Ceramics International - Volume 40, Issue 4, May 2014, Pages 5861-5867
نویسندگان
Mir Im, Sang-Hyo Kweon, Jin-Seong Kim, Sahn Nahm, Ji-Won Choi, Seong-Ju Hwang,