این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Materials Science and Engineering، جلد ۸، شماره ۲، صفحات ۱-۹
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی PREPARATION OF NANO-STRUCTURAL Al2O3-TiB2 IN-SITU COMPOSITE USING MECHANICALLY ACTIVATED COMBUSTION SYNTHESIS FOLLOWED BYINTENSIVE MILLING
چکیده انگلیسی مقاله Abstract: Nano-structural synthesized materials can be fabricated utilizing intensive milling after combustion synthesis. The Al2O3-TiB2 ceramic composite has been synthesized by aluminothermic reactions between Al, Ti (TiO2), and B (B2O3 or H3BO3). Boric acid (H3BO3) is less expensive than boron oxide, and after being dehydrated at 200°C, boron oxide will be obtained. In this study, Al, TiO2, and boric acid were used as the starting materials to fabricate an Al2O3-TiB2 ceramic composite. After mechanical activation and thermal explosion processes, intensive milling was performed for 5, 10, and 20h to assess the formation of a nano-structural composite. The X-ray phase analysis of the as-synthesized sample showed that considerable amounts of the remained reactants incorporated with the TiO phase were present in the XRD pattern. The results showed that the average crystallite size for alumina as a matrix were 150, 55 and 33 nm, after 5h, 10h, and 20h of intensive milling, respectively. The SEM microstructure of the as-milled samples indicated that increasing the milling duration after combustion synthesis causes a significant reduction in the particle size of the products, which leads to an increase in the homogeneity of particles size. A significant increase in the microhardness values of the composite powders was revealed after intensive milling process.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله r طاهرزاده موسویان | r taherzadeh mousavian
1 materials science and engineering department, shahid bahonar university of kerman, kerman, iran

سازمان اصلی تایید شده: دانشگاه شهید باهنر (Shahid bahonar university)

شهریار شرفی | s sharafi
1 materials science and engineering department, shahid bahonar university of kerman, kerman, iran

سازمان اصلی تایید شده: دانشگاه شهید باهنر (Shahid bahonar university)

m h شریعت | m h shariat
2 materials science and engineering department, school of engineering, shiraz university, shiraz, iran

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-3-143&slc_lang=en&sid=en
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Research paper
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات