کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5437477 | 1398174 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Role of Na-doping-induced oxygen vacancies in the variation of electrical properties of NiO ceramics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Na-doping concentration dependent electrical and structural properties of NiO ceramics were investigated. Various samples of NaxNi1âxO (x = 0.00, 0.01, 0.03, 0.05, 0.07, 0.09, 0.11) were prepared by using conventional solid state reaction. Most of the samples showed the decreased electrical resistivity with the increase of the Na-doping concentration while maintaining phase-pure face-centered cubic (fcc) structure, except in the case of the sample containing 11% of Na. For the sample containing 11% of Na, the electrical resistivity slightly increased due to the presence of secondary phase. The possible physical origin of this reduced electrical resistivity is related to the increased number of oxygen vacancies, with the increase of the Na-doping concentration for phase-pure NaxNi1âxO ceramics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 15, 15 October 2017, Pages 11898-11901
Journal: Ceramics International - Volume 43, Issue 15, 15 October 2017, Pages 11898-11901
نویسندگان
Seojin Yang, Jiwoong Kim, Sehwan Song, Dooyong Lee, Tae-Seong Ju, Jong-Seong Bae, Sungkyun Park,