کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5440403 1398228 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Macro-porous ceramic supports for membranes prepared from quartz sand and calcite mixtures
ترجمه فارسی عنوان
پشتیبانی از سرامیک متخلخل برای غشای ساخته شده از ماسه کوارتز و مخلوط کلسیت
کلمات کلیدی
پشتیبانی سرامیک، کوارتز، کلسیت، نفوذ پذیری آب، مواد متخلخل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
A new type of porous ceramic supports for membranes has been designed. The new supports have been fabricated from polycrystalline quartz sand and calcite raw materials. In this work, two configurations of support (tubular and flat) have been produced using extrusion method. The open porosity, the pore size distribution, the average pore size (APS), the strength and the permeability of sintered supports have been found to depend mainly on the weight ratio of calcite (CaCO3) additive. The results showed that with the addition of 15-35 wt.% of calcite and sintering temperature of about 1375 °C for 1 h the best characteristics of sintered supports could be obtained. The developed tubular ceramic supports with the APS 6.3-12 μm, open porosity 42-55%, the water permeability (16-68 m3/h m2 bar) and flexural strength 8-18 MPa hopefully offer many perspectives for a wide use in membranes technology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 9, August 2017, Pages 3159-3165
نویسندگان
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