Characterization of microstructural and thermal properties of steatite/cordierite ceramics prepared by using natural raw materials
Küçük Resim Yok
Tarih
2011
Yazarlar
Gokce, Hasan
Agaogullari, Duygu
Ovecoglu, M. Lutfi
Duman, Ismail
Boyraz, Tahsin
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCI LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Steatite/cordierite ceramics were fabricated by using a combined method of high-energy ball milling, cold pressing and sintering. Steatite and cordierite powders were separately synthesized from natural raw materials such as kaolinite and talc. The powder blends containing different amounts of cordierite (5, 10 and 20 wt.%) were wet-milled for 1 h in a vibratory ball-mill (Fritsch (TM) Pulverisette 7 Premium Line), using zirconia vial and balls. After drying, powders were compacted to cylindrical preforms with a diameter of 12.7 mm by uniaxial pressing at 300 MPa. The green compacts were sintered at 1200-1350 degrees C for 2 h under air. Phase, microstructural and thermal characterizations of the sintered materials were carried out by using X-ray diffraction technique (XRD), thermogravimetry/differential thermal analyzer (TG/DTA) and scanning electron microscope (SEM). Densities, open porosity and water absorption values of sintered bodies were measured by Archimedes method. Thermal expansion coefficient (CTE) measurements were conducted by a dilatometer. (C) 2010 Elsevier Ltd. All rights reserved.
Açıklama
11th International Conference on Ceramic Processing Science (ICCPS-11) -- AUG 29-SEP 01, 2010 -- ETH Zurich, Campus Sci City, Zurich, SWITZERLAND
Anahtar Kelimeler
Silicates, Steatite/cordierite, Milling, Pressing, Sintering
Kaynak
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
31
Sayı
14
