EFFECT OF PARTICLE SIZE OF ALUMINUM ON THE DEVELOPMENT OF CLINOPTILOLITE BASED POROUS CERAMIC FILTERS
Öz
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 three 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 mm in size, the moderate sample produced relatively fine and narrow pore
size distribution (4-65 mm). The
results indicated that the moderate sample leads to production of ceramic
filter with high selectivity during filtration.
Anahtar Kelimeler
Kaynakça
- [1]Wu, S., Gesing, A.J., Travitzky, N.A., Claussen, N., Fabrication and properties of Al-infiltrated RBAO-based composites, J. Eur. Ceram. Soc. 7, 277–281, (1991).
- [2]Claussen N., T. S.,Wu Le, , Low-shrinkage reaction-bonded alumina, J. Eur. Ceram. Soc. 5 29–35, (1989).
- [3]Ebadzadeh, T., Porous mullite-ZrO2 composites from reaction sintering of zircon aluminium, Ceram. Int. 31, 1091-1095, (2005).
- [4]Esharghawi, A., Penot, C., Nardou, F., Contribution to porous mullite synthesis from clays by adding Al and Mg powders, J. Eur. Ceram. Soc 29, 31–38, (2009).
- [5]Sahraoui, T., Belhouchet, H., Heraiz, M., Brihi, N., Guermat, A., The effects of mechanical activation on the sintering of mullite produced from kaolin and aluminum powder, Ceram. Int. 42, 12185–12193, (2016).
- [6]Issaoui, M., Limousy, L., Lebeau, B., Bouaziz, J., Fourati, M., Design and characterization of flat membrane supports elaborated from kaolin and aluminum powders, C. R. Chimie 19, 496-504, (2016).
- [7]Balmori-Ramirez, H., Rocha-Range1, E., Refugio-Garcia, E., C. Bradt, R., Dense Mullite from Attrition-Milled Kyanite and Aluminum Metal, J.Am. Ceram. Soc. 87 (1) 144-146, (2004).
- [8]Sadika, C., El Amranib, I. E., Albizane, A., Effect of andalusite rich schist grain size and the addition of metallic aluminumpowder on the properties of silica–alumina refractory, J. Asian Ceram. Soc. 1, 351–355, (2013).
Ayrıntılar
Birincil Dil
İngilizce
Konular
Malzeme Üretim Teknolojileri
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
15 Aralık 2017
Gönderilme Tarihi
23 Aralık 2016
Kabul Tarihi
11 Aralık 2017
Yayımlandığı Sayı
Yıl 2017 Sayı: 039