کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1462681 | 989636 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An enhanced mechanical quality factor and a low dielectric loss in lithium sodium niobate lead-free ceramics
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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: An enhanced mechanical quality factor and a low dielectric loss in lithium sodium niobate lead-free ceramics An enhanced mechanical quality factor and a low dielectric loss in lithium sodium niobate lead-free ceramics](/preview/png/1462681.png)
چکیده انگلیسی
(Li0.12Na0.88)(Nb0.96âxSb0.04Tax)O3 (LNNST) ceramics were fabricated by the normal sintering. These LNNST ceramics endure a phase transition from an orthorhombic phase, a coexistence of orthorhombic and tetragonal phases, to a tetragonal phase with increasing Ta content. Dense microstructure has been developed for all ceramics. The Tc decreases and the Ér increases with increasing Ta content, together with a very low dielectric loss of less than 1.3%. A high Qm value of â¼1230 is demonstrated for the ceramic with x = 0.06. Enhanced piezoelectric properties are also demonstrated for the ceramic with x = 0.03 because of a coexistence of two phases. Therefore, this ceramic is a promising candidate for the transducer and transformer applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 38, Issue 5, July 2012, Pages 4023-4027
Journal: Ceramics International - Volume 38, Issue 5, July 2012, Pages 4023-4027
نویسندگان
Xiaojing Cheng, Jiagang Wu, Dingquan Xiao, Jianguo Zhu,