کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
791670 1466760 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sol–gel synthesis of aluminum titanate (Al2TiO5) nano-particles
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Sol–gel synthesis of aluminum titanate (Al2TiO5) nano-particles
چکیده انگلیسی

Aluminum titanate (Al2TiO5) is a refractory material with low thermal expansion coefficient about 1–2 × 10−6 K−1. In this study nano-particles of tialite (Al2TiO5) have been synthesized by sol–gel processing at low temperatures around 750 °C. The raw materials were titanium butoxide, aluminum chloride, ethanol and citric acid. After preparing of primary sol at acidic pH and polymerization at 80 °C, drying and calcination of obtained gel have been done at different temperatures. Results of X-ray diffraction (XRD), Fourier transform infra red (FTIR), simultaneous thermal analysis (STA) and scanning electron microscopy (SEM) analyses showed that the formation temperature of tialite reduced from 1280 to 750 °C via sol–gel processing at a homogeneous system in atomic level. Size of the primary particles was less than 100 nm but nano-particles of tialite agglomerated like cabbage shape.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 206, Issues 1–3, 12 September 2008, Pages 282–285
نویسندگان
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