کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1465150 | 989682 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electron emission from lead lanthanum zirconate titanate ferroelectric cathodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work concentrated on studying the relationship between electron emission and materials properties. Ferroelectric (PLZT 7/65/35) and paraelectric (PLZT 12/65/35) compositions of lead lanthanum zirconate titanate (PLZT) system were chosen to study for their widely different ferroelectric and dielectric properties. The experimental results proved the wrong of the spontaneous polarization switching model which based on the ferroelectric properties of the cathode. The mechanism of electron emission from PLZT ceramics was ascertained to field emission and surface plasma emission. The emission current depends slightly on the ferroelectric properties and depends significantly on the dielectric constant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 33, Issue 7, September 2007, Pages 1155–1159
Journal: Ceramics International - Volume 33, Issue 7, September 2007, Pages 1155–1159
نویسندگان
Shu-tao Chen, Xian-lin Dong, Shu-xin Zheng, Zi-qiu Zhu, Chuan-xiang Tang,