کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7900811 | 1510411 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of molybdenum and titanium oxides on mechanical and thermal properties of cordierite-enstatite glass-ceramics
ترجمه فارسی عنوان
اثر مولیبدن و اکسید تیتانیوم بر خواص مکانیکی و حرارتی سرامیک شیشه ای کوردیریت-اسستاتیت
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
سرامیک شیشه ای، کوردیریت، انستاتیت، مولیبدن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
By adding either MoO3 or TiO2 as nucleating agents, glass at the eutectic point of cordierite (2MgO·2Al2O3·5SiO2) and enstatite (MgSiO3) in the MgO-Al2O3-SiO2 ternary system was crystallized. Although bulk crystallization required adding 10 wt% TiO2, approximately 0.1-0.5 wt% of MoO3 induced bulk nucleation when the parent glass was melted under reducing conditions. For both TiO2- and MoO3-nucleated glasses, the glass-ceramics containing both cordierite-enstatite as main crystalline phases were obtained by heat-treatment at 1200 °C. The fracture toughness of the glass-ceramics nucleated by TiO2 was 1.5 times higher than that of sintered cordierite ceramics. In addition to two main crystalline phases, magnesium titanium oxide and rutile also precipitated in TiO2-nucleated glass. The additional effects of TiO2 on the properties of the glass-ceramics were identified by comparing the TiO2- nucleated glass-ceramics and MoO3- nucleated one. The addition of TiO2 slightly increased the Young's modulus of the glass-ceramics. On the other hand, since TiO2 suppressed the precipitation of enstatite, the thermal deformation of TiO2-nucleated glass-ceramic at 1100 °C was larger than that of MoO3- nucleated one. Therefore, MoO3 is the preferable nucleating agent of the glass-ceramics for application which requires high thermal endurance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 434, 15 February 2016, Pages 13-22
Journal: Journal of Non-Crystalline Solids - Volume 434, 15 February 2016, Pages 13-22
نویسندگان
Kei Maeda, Yoichi Sera, Atsuo Yasumori,