کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1488776 992295 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nanoscale calcium aluminate coated graphite for improved performance of alumina based monolithic refractory composite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Nanoscale calcium aluminate coated graphite for improved performance of alumina based monolithic refractory composite
چکیده انگلیسی


• Sol–gel Ca-doped γ-Al2O3 accomplished graphite retention.
• Nanocoating considerably improved matrix-aggregate bonding.
• Less porous simulated matrix upgraded slag resistance.

The synthesis and properties of high alumina castable containing nanostructured calcium aluminate coated graphite were studied in terms of slag resistance and overall physical characteristics. Raman spectroscopy, BET surface area and field emission scanning electron microscopy (FESEM) were performed to exclusively understand the coating characteristics and its compatibility in refractory composite. The coating not only secured graphite in castable for prolonged period but also noticeably improved matrix to aggregate contact. The microstructural aspects of castables were investigated, with special emphasis on a representative matrix prepared and infiltrated with slag at elevated temperature. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) of fired composite containing surface-treated graphite was quite prospective. It circumvented the problems of incorporating as-received graphite in castables and should be in the attention of refractory researchers and producers.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 48, Issue 7, July 2013, Pages 2583–2588
نویسندگان
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