کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1463237 989644 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An efficient way to improve the electrical stability of Ni0.6Si0.2Al0.6Mn1.6O4 NTC thermistor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
An efficient way to improve the electrical stability of Ni0.6Si0.2Al0.6Mn1.6O4 NTC thermistor
چکیده انگلیسی

In this paper, Ni0.6Si0.2Al0.6Mn1.6O4 compounds with negative temperature coefficient (NTC) property were fabricated using NiO, SiO2, MnO2 and Al2O3 as raw materials. The effect of ball milling time on phase composition, microstructure and electrical stability of the compounds was studied. The results showed that the particle size of calcined powder decreased with the increase of ball-milling time, resulting in a decreased B25/85 constant, activation energy and resistance drift ΔR/R0 (%) of the Ni0.6Si0.2Al0.6Mn1.6O4 compounds. Meanwhile, it was found that activation energy increased with the decrease of the density of the compounds, and the resistance drift ΔR/R0 (%) was less than 0.02% when the ball-milling time reached to 48 h.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 37, Issue 7, September 2011, Pages 2537–2541
نویسندگان
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