کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5448101 | 1511770 | 2017 | 44 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The impact of trivalent oxide nanoparticles on the microstructure and performance of magnesite-dolomite refractory bricks
ترجمه فارسی عنوان
تأثیر نانوذرات اکسید سه گانه بر ریزساختار و عملکرد آجرهای مقاوم در برابر منیزیت- دولومیت
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
In this research, the impact of trivalent oxide nanoparticles on the microstructure and performance of the magnesite-dolomite refractory bricks was examined. Up to 4 wt% Fe2O3, Al2O3, and Cr2O3 nanoparticles were added to the specimens as additives. Physical and mechanical properties such as bulk density (BD), apparent porosity (AP), hydration resistance (HR), and cold crushing strength (CCS) were examined. XRD and SEM analysis were used to detect the ceramic phase's formation and microstructure analysis, respectively. Results show that the use of Fe2O3, Al2O3, and Cr2O3 nanoparticles improve the physical and mechanical properties of the MgO-CaO materials. Also, it revealed that specimens contain Fe2O3 and Al2O3 nanoparticles improve hydration resistance through the liquid phase sintering mechanism by formation some low melting phases such as C2F(2CaO·Fe2O3), C3A(3CaO·Al2O3), and C12.A7(12CaO·7Al2O3). However the specimens contain Cr2O3 nanoparticles improve the hydration resistance through the solid state sintering mechanism by formation phases such as CaCr2O4 and MgCr2O4. In general, hydration resistance improvement trend of the MgO-CaO specimens includes trivalent nanoparticles is Al2O3
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 193, 1 June 2017, Pages 413-420
Journal: Materials Chemistry and Physics - Volume 193, 1 June 2017, Pages 413-420
نویسندگان
Salman Ghasemi-Kahrizsangi, Ebrahim Karamian, Ahmad Ghasemi-Kahrizsangi, Hassan Gheisari Desheikh, Ali Soheily,