کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7212900 | 1469395 | 2016 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal properties of BaTiO3/Ag composites at different temperatures
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal properties of BaTiO3/Ag composites at different temperatures Thermal properties of BaTiO3/Ag composites at different temperatures](/preview/png/7212900.png)
چکیده انگلیسی
This study examines the thermal properties, i.e. thermal expansion, specific heat, and thermal conductivity, of active composites comprising of barium titanate (BaTiO3) and silver (Ag). BaTiO3/Ag composites with varying silver composition were fabricated by powder metallurgy technique. The coefficient of thermal expansion (CTE) was measured within â50 to 250 °C temperature range using thermal mechanical analyzer (TMA). Differential scanning calorimeter (DSC) was used to measure the specific heat of the composites at a constant pressure within â50 to 200 °C temperature range, while, thermal conductivity and thermal diffusivity were measured by HotDisk technique. The effect of silver content on various thermal properties was investigated experimentally and numerically. The experimental results were also compared with some available experimental data from literature. As for the numerical investigations, 2-D and 3-D micromechanical models were constructed from realistic and randomly generated microstructures in order to predict the effective CTE and thermal conductivity of the composite, and investigate the local field fluctuations. The micromechanical models were implemented in finite elements. The effects of loading direction, porosity, particle shape and dispersion, and material properties of constituents were also studied. Numerical results for 2-D micromechanical models and 3-D generated microstructural models were compared to the experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 90, 1 April 2016, Pages 287-301
Journal: Composites Part B: Engineering - Volume 90, 1 April 2016, Pages 287-301
نویسندگان
Junwei Xing, Miladin Radovic, Anastasia Muliana,