کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155489 | 1666351 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved temperature stability and high piezoelectricity in lead-free barium titanate-based ceramics
ترجمه فارسی عنوان
بهبود پایداری دما و پیزو الکتریکی بالا در سرامیک بر اساس سرب بر اساس تیتانات
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کلمات کلیدی
تیتانات باریم، مرز فاز، درجه حرارت کوری بالا، پایداری دما، خواص الکتریکی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
To achieve high piezoelectricity and the corresponding good temperature stability of BaTiO3 (BT) ceramics, a new system of (1-x-y) BaTiO3â-âyCaTiO3â-âx(BaZr1-zHfz)O3 (BT-yCT-xBZHz) was designed. The O-T phase boundary was observed at 0.065ââ¤âxââ¤â0.085, 0.08ââ¤âyââ¤â0.12 and 0ââ¤âzââ¤â1.0 near room temperature. Due to the O-T phase boundary, the enhancement of electrical properties (d33â=â500 pC/N, kpâ=â0.52, Prâ=â14.0âμC/cm2 and εrâ=â2800), large strain (â¼0.23%) and d33*â=â1100âpm/V (10âkV/cm) can be obtained. Moreover, temperature-dependent electrical properties were investigated in detail, and a reliable performance was realized due to high TC (>100â°C). The d33* was demonstrated to be temperature-insensitive from 16â°C to 60â°C (varying less than 7%), which is superior to the reported BT-based ceramics. Besides, d33 and Pr fluctuate less than 22% in this temperature range, also showing an usable stability. We believe that this work can be beneficial to facilitate an increasing adoption of lead-free BT-based piezoceramics for practical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 16, December 2018, Pages 5411-5419
Journal: Journal of the European Ceramic Society - Volume 38, Issue 16, December 2018, Pages 5411-5419
نویسندگان
Chunlin Zhao, Bo Wu, Hao-Cheng Thong, Jiagang Wu,