@article{article_404972, title={EFFECT OF PARTICLE SIZE OF ALUMINUM ON THE DEVELOPMENT OF CLINOPTILOLITE BASED POROUS CERAMIC FILTERS}, journal={Journal of Science and Technology of Dumlupınar University}, pages={43–48}, year={2017}, author={Şan, Osman and Koç, Muhterem}, keywords={Porous ceramics,clinoptilolite,Al-metal powder,oxidation,corundum}, abstract={ This paper reports the effect of particle size of Al-metal powder addition on the development of clinoptilolite based porous ceramic filters. The clinoptilolite particles was mixed with 10 wt.% of Al-powder and the t hree different clinoptilolite-metal powder mixture samples were prepared namely: (i) coarse sample (used large size of Al-powder by mixing in dry ball mill for 5 min.), (ii) moderate sample (using fine size of Al-powder) and (iii) fine sample (planetary milling of the moderate sample in an aqueous medium for 1 hour). The mixtures were shaped by uniaxial pressing at 50 MPa and later sintered at the temperatures of 1200°C for 1 hour under air atmosphere. The microstructure and phase evolution were investigated by SEM and XRD, respectively. The coarse sample indicated corundum crystallization with silicon (Si) and with poor cristobalite crystallization. The cristobalite crystallization is prodominantly for the fine and moderate samples. Except the planetery milled sample (fine) the porosities of the samples were good enough (~28%) but the pore sizes were different; the coarse sample showed large pores up to 150 <span lang="EN-GB" style="font-size:10.0pt;font-family:Symbol;mso-ascii-font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:"Times New Roman";mso-ansi-language: EN-GB;mso-fareast-language:TR;mso-char-type:symbol;mso-symbol-font-family:Symbol">m m in size, the moderate sample produced relatively fine and narrow pore size distribution (4-65 <span lang="EN-GB" style="font-size:10.0pt; font-family:Symbol;mso-ascii-font-family:"Times New Roman";mso-fareast-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: "Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language:TR;mso-char-type: symbol;mso-symbol-font-family:Symbol">m m). The results indicated that the moderate sample leads to production of ceramic filter with high selectivity during filtration. <o:p> </o:p> }, number={039}, publisher={Kütahya Dumlupinar University}