کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5437550 | 1398175 | 2017 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and properties of mullite-bonded porous fibrous mullite ceramics by an epoxy resin gel-casting process
ترجمه فارسی عنوان
آماده سازی و خواص سرامیک مولتی ویتامین متخلخل مولتی باند توسط یک پروسه ژل ریخته گری اپوکسی
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Porous fibrous mullite ceramics with a narrow range of pore size distribution have been successfully prepared utilizing a near net-shape epoxy resin gel-casting process by using mullite fibers, Al2O3 and SiC as raw materials. The effects of sintering temperatures, different amounts of fibers and Y2O3 additive on the phase compositions, linear shrinkage, apparent porosity, bulk density, microstructure, compressive strength and thermal conductivity were investigated. The results indicated that mullite-bonded among fibers were formed in the porous fibrous mullite ceramics with a bird nest pore structure. After determining the sintering temperatures and the amount of fibers, the tailored porous fibrous mullite ceramics had a low linear shrinkage (1.36-3.08%), a high apparent porosity (61.1-71.7%), a relatively high compressive strength (4.4-7.6 MPa), a low thermal conductivity (0.378-0.467 W/m K) and a narrow range of pore size distribution (around 5 µm). The excellent properties will enable the porous ceramics as a promising candidate for the applications of hot gas filters, thermal insulation materials at high temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 7, May 2017, Pages 5478-5483
Journal: Ceramics International - Volume 43, Issue 7, May 2017, Pages 5478-5483
نویسندگان
Lei Yuan, Beiyue Ma, Qiang Zhu, Xiaodong Zhang, Han Zhang, Jingkun Yu,