کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7209007 1469115 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical and physical properties of calcium silicate/alumina composite for biomedical engineering applications
ترجمه فارسی عنوان
خواص مکانیکی و فیزیکی کامپوزیت سیلیکات کلسیم / آلومینای برای برنامه های کاربردی مهندسی پزشکی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
چکیده انگلیسی
The focus of this study is to investigate the effect of Al2O3 on α-calcium silicate (α-CaSiO3) ceramic. α-CaSiO3 was synthesized from CaO and SiO2 using mechanochemical method followed by calcinations at 1000 °C. α-CaSiO3 and alumina were grinded using ball mill to create mixtures, containing 0-50 w% of Al2O3 loadings. The powders were uniaxially pressed and followed by cold isostatic pressing (CIP) in order to achieve greater uniformity of compaction and to increase the shape capability. Afterward, the compaction was sintered in a resistive element furnace at both 1150 °C and 1250 °C with a 5 h holding time. It was found that alumina reacted with α-CaSiO3 and formed alumina-rich calcium aluminates after sintering. An addition of 15 wt% of Al2O3 powder at 1250 °C were found to improve the hardness and fracture toughness of the calcium silicate. It was also observed that the average grain sizes of α-CaSiO3 /Al2O3 composite were maintained 500-700 nm after sintering process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 30, February 2014, Pages 168-175
نویسندگان
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