کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1464367 | 989660 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of lead-free and high Tc BaTiO3-based thermistor ceramics using deoxidizing effect of oxygen-containing α-zirconium
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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: Fabrication of lead-free and high Tc BaTiO3-based thermistor ceramics using deoxidizing effect of oxygen-containing α-zirconium Fabrication of lead-free and high Tc BaTiO3-based thermistor ceramics using deoxidizing effect of oxygen-containing α-zirconium](/preview/png/1464367.png)
چکیده انگلیسی
Oxygen-containing α-zirconium (α-ZrOx) has been synthesized by an arc melting method. The oxidation of the α-ZrOx powders occurs at 480 °C in air. After this oxidation, the reaction product is normal zirconia ZrO2 powders. We demonstrate an application of this oxidation process. By firing green bodies of BaTiO3–(Bi1/2Na1/2)TiO3 solid-solution ceramics in contact with the α-ZrOx powders, the ceramics acquire a semiconductivity with a positive temperature coefficient of resistivity (PTC) behavior. We propose a method to prepare lead-free PTC thermistor ceramics with a Curie temperature Tc over 130 °C, which is that of BaTiO3, in air.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 34, Issue 8, December 2008, Pages 2073–2077
Journal: Ceramics International - Volume 34, Issue 8, December 2008, Pages 2073–2077
نویسندگان
Hiroaki Takeda, Yoichiro Hoshi, Tsukuru Kinoshita, Toetsu Shishido, Takashi Nishida, Tadashi Shiosaki,