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عنوان البحث(Papers / Research Title)


PREPARATION OF MACRO- POROUS ALUMINA VIA ORGANIC ADDITIVE AND CHARACTERIZATIONS PHYSICAL PROPERTIES BY USING A GENETIC ALGORITHM METHOD


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
محمد عاصي احمد الدجيلي

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محمد,عاصي,احمد,الدجيلي ,PREPARATION OF MACRO- POROUS ALUMINA VIA ORGANIC ADDITIVE AND CHARACTERIZATIONS PHYSICAL PROPERTIES BY USING A GENETIC ALGORITHM METHOD , Time 25/03/2017 08:30:18 : كلية هندسة المواد

وصف الابستركت (Abstract)


The exhibited work is focused on the preparation of alumina based porous ceramics and its characterizations. Alumina ceramic with Macro - porous size and control of pore morphology was prepared by semi-dry pressing method via using organic yeast cell for pore forming

الوصف الكامل (Full Abstract)

Abstract-The exhibited work is focused on the preparation of alumina based porous ceramics and its characterizations. Alumina ceramic with Macro - porous size and control of pore morphology was prepared by semi-dry pressing method via using organic yeast cell for pore forming. Where, alumina powder synthesis by sol-gel method using Al (NO3)3_9H2O and ammonia, then it uses as raw material to produce a porous alumina bodies. During the heat treatment, the organic additions‏( yeast) was removed and produce a pore ,it was observed that with increasing amount of the yeast cell, the porosity tends to increase. The effect of both different mas ratio of alumina synthesis to yeast, pressing, calcination temperature and soaking time on the microstructure of the final bodies were an investigation. The obtain macro porous alumina had a pore size in rand (0.09-2 ?m), porosity (53-75%).
Keywords: Alumina, Yeast, Sol-gel process, Semi-dry pressing, Genetic algorithm method

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