کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10624474 | 989594 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural, functional and mechanical properties of spark plasma sintered gadolinia (Gd2O3)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Powder particles of gadolinia were spark plasma sintered at varied temperatures between 1400 °C and 1600 °C. High-density samples free of any sintering additives were obtained at the highest sintering temperature and the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) including density measurements. The contact angle measurements and translucence studies implied the sintered samples to be hydrophobic and translucent respectively. The nanohardness values enhanced up to â¼88% with increase in sintering temperature from 1400 °C to 1600 °C. Young's modulii determined using nanoindentation varied from 126 GPa to 169 GPa for the samples sintered at the lowest and highest temperatures respectively. The theoretical Young's modulus was also determined using first principle calculations which were eventually used for fracture toughness calculations. The fracture toughness values of the sintered samples were calculated using the indentation crack length method (ICL) and compared with the crack opening displacement (COD) method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 1, Part B, January 2016, Pages 1384-1391
Journal: Ceramics International - Volume 42, Issue 1, Part B, January 2016, Pages 1384-1391
نویسندگان
Eranezhuth Wasan Awin, Soumya Sridar, Rajashekhar Shabadi, Ravi Kumar,