کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470918 990337 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Corrosion of barium aluminosilicates by water-vapour: An investigation from first principles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Corrosion of barium aluminosilicates by water-vapour: An investigation from first principles
چکیده انگلیسی

Theoretical studies on the water-vapour corrosion resistance of barium aluminosilicates were carried out using Mulliken analysis based on first principles. The Mulliken population of Si–O bonds in different barium aluminosilicates was calculated. The water-vapour corrosion resistance of them was predicted based on these calculation results. In order to verify the prediction results, four barium aluminosilicate powders were synthesized by sol–gel method, and the water-vapour corrosion behaviour of these materials was studied at 1250 °C in an atmosphere of 50%H2O–50%O2 water-vapour flowing at a rate of 0.85 mm/s. The experimental results were consistent with the predictions by first principles. This work suggested a methodology for design and selection of silicate materials with good water-vapour corrosion resistance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 51, Issue 9, September 2009, Pages 2126–2129
نویسندگان
, ,