کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7996917 1516211 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Studies of interface characteristics of fine-grain ferroelectric based glass-ceramic composites using impedance spectroscopy
ترجمه فارسی عنوان
مطالعات ویژگیهای رابطهای کامپوزیتهای شیشه ای سرامیکی مبتنی بر فریزر با استفاده از طیف سنجی امپدانس
کلمات کلیدی
امپدانس، رابط، سرامیک شیشه ای، قدرت شکست پردازش ترکیبی اصلاح شده،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
High-quality fine-grained ferroelectric glass-ceramic composites were successfully fabricated by using a modified hybrid processing. The properties of interfaces were investigated by using impedance spectroscopy (IS). In our measured impedance spectra, a polarization with an ideal Debye behavior was observed at intermediate frequency ranging between 1 kHz and 100 kHz. This polarization was attributed to the space charge accumulation at the grain-boundary interfaces, due to the presence of large dielectric constant difference between the fillers and the host. Basing on the IS results, a brick-layer microstructural model was proposed for the ferroelectric glass-ceramic composites. Our studies indicated that the new modified hybrid processing can be used to design composites with desired interfaces that have a homogeneous dielectric constant, so as to achieve high breakdown strength, thus leading to high electrical energy density storage devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 682, 15 October 2016, Pages 196-202
نویسندگان
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