کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1473546 991049 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Patterning of lead-zirconate-titanate thick-film structures by electrophoretic deposition from ethanol-based dispersions
ترجمه فارسی عنوان
الگوی سازه های ضخیم فیلم سرب-زیرکونات-تیتانات توسط رسوب الکتروفورز از پراکندگی های اتانول
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

We studied the thickness uniformity and homogeneity of lead-zirconate-titanate thick films on gold-coated alumina substrates obtained by constant-current electrophoretic deposition from ethanol-based suspensions with different conductivities. Based on the geometry of the experimental set-up, a finite-element model was constructed. The numerical analyses predicted a non-uniform current-density distribution on the electrodes, which was higher at the edges. We expected a thicker deposit at the edges, which was confirmed by measuring the cross-sectional profile of the as-deposited layer. The thickness non-uniformity was more pronounced for shorter deposition times and when performing the deposition from highly conductive suspensions. In the latter case the rate of deposition was decreased and the homogeneity of the deposits was increased, as evidenced by the scanning electron microscopy images. A homogeneous and uniform layer with a thickness of about 40 μm was prepared from the ethanol-based suspension with a conductivity of 20 μS/cm after 120 s.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 36, Issue 2, January 2016, Pages 291–297
نویسندگان
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