Productıon and characterizatıon of alumina based ceramic filter by using simple sponge
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Sponge commonly use in daily life for door-window isolation was preferred rather than special sponges due to economic reasons. Samples were prepared in three different groups; mainly Alumina-polyvinyl alcohol (ALPA-Group), Alumina-manganese oxide (ALMO-Group) and Alumina and bentonite (ALBE-Group) raw materials. Sponge was immersed into mud prepared in three different groups and then it was dried in the oven and sintered at different temperatures. The filters obtained after sintering underwent metallographic analyses as well as physical tests such as unit volume weight, shrinking in length, water emission analysis, porosity and corrosion tests. According to the experimental studies, simple sponge was found out to be inappropriate for filter production, ALPA-Group and ALBE-Group test samples preserved their properties up to 1550˚C whereas ALMO-Group sample was observed to experience deformation at 1450˚C. When the results of all tests and analyses applied to the samples are assessed, for ceramic filter usage ALBE-Group test sample which was sintered at 1550˚C have more appropriate properties than others.
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