کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1622593 | 1516401 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvement in dielectric properties of Zn-doped CaCu3Ti4O12 electroceramics prepared by modified mechanical alloying technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A single-phase of calcium copper titanate (CaCu3Ti4O12) was produced at lower temperature and shorter calcination time via a combination of solid state reaction and mechanical alloying techniques. The raw materials mixture was subjected to fast ball-milling for 5 h. The mixture was calcined at 750 °C for 9 h to form a single-phase CaCu3Ti4O12. Effect of zinc dopant to the dielectric properties of CaCu3Ti4O12 had been studied. At lower frequencies, it was found that the dielectric constants had a minimum value at 1.5 mol% Zn. The minimum dielectric loss was observed at 5 mol% Zn. At 1 kHz, the dielectric loss decreases from 30% (undoped) to a minimum value of 18% at 5 mol% Zn dopant. This result indicates that certain Zn dopant can be used to improve the dielectric loss properties of CaCu3Ti4O12.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 476, Issues 1â2, 12 May 2009, Pages 477-481
Journal: Journal of Alloys and Compounds - Volume 476, Issues 1â2, 12 May 2009, Pages 477-481
نویسندگان
Sabar D. Hutagalung, Li Ying Ooi, Zainal A. Ahmad,