Aida Faeghinia
Ceramic Division, Materials and Energy Research Center
[ 1 ] - An investigation on Mechanical Properties of Apatite-Wollastonite-Diopside Glass-Ceramics Composites
In the present study, Apatite-Wollastonite-Diopside glass-ceramic composites were prepared by the pressureless sintering process at the temperature range of 1100-1160 °C. The weight percentage of phlogopite was varied between 10% and 50%. In addition, the bending strengths were increased from 100 to 170 Mpa by increasing the content of phlogopite up to 20 wt%. Furthermore, the sintering condition…
[ 2 ] - The Effect of Rotation Speed on the Microstructure and Hardness of Synthesized Al-WC Nano-Composite by Centrifugal Casting
The aim of this work was WC distribution in base Al-Si-Mg (A356) alloy as reinforcing agent. WC Solid particles in the sub-23-nm size range added to melted alloy by centrifuge casting. The cylinder tube without gap was obtained. FESEM and OPM results show that the distribution depends upon the rotational speeds of the mould and centrifugal casting conditions. According to the MAP results, during …
[ 3 ] - Phlogopite glass-ceramic coatings on stainless steel substrate by plasma spray
Macor coatings on 316 alloys substrates were prepared by plasma spraying. The crystallization temperature, thermal expansion coefficient of mica glass-ceramic were at 900ºC and 40× 10−7/◦C respectively. The microhardness of obtained glass-ceramic coating was 6.8GPa and the coefficient friction was 0.98 .
[ 4 ] - Luminescence Properties of TeO2-LiF-Gd2O3 Glasses
In this work, the structural properties and spectroscopic behavior 80 mol.%TeO2-20mol.%LiF glasses which were doped with 0. 05, 0. 2 mole% Gd2O3 have been studied. It was shown that, by increasing the amount of Gd2O3 the glass stability was decreased. The PL emissions at 431nm and 627nm wavelengths were distinguished by 320nm excitation. The FT-IR analysis showed deformed TeO4 groups in these gla…
[ 5 ] - بررسی فرایند تف‌جوشی کامپوزیت فومی شیشه - سرباره فولاد در حضور کاربید سیلیسیم
سرباره آمورف فولاد حاوی غلظت‌های مختلف ضایعات شیشه (20، 40، 50، 60 و 70 درصد وزنی)، کاربید سیلیسیم (SiC) مخلوط و کامپوزیت حاصل از آنها تهیه شد. بنابر تصاویر میکروسکوپی حرارتی، انقباضات کامپوزیت سرباره - شیشه در دمای 1050 درجه سانتی‌گراد آغاز‌شد. در تصاویر میکروسکوپی الکترونی روبشی از ریزساختار کامپوزیت سرباره - کاربید سیلیسیم (عامل فوم‌زا)، تخلخل‌های تونل‌مانند با ابعادی در محدوده 1000-500 میکرون…
نویسندگان همکار