Production and permeability of porous Si3N4 ceramics produced by starch addition

TOPATEŞ G., Petasch U., Adler J., Kara F., Mandal H.

JOURNAL OF ASIAN CERAMIC SOCIETIES, cilt.1, sa.3, ss.257-261, 2013 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1 Sayı: 3
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.jascer.2013.06.002
  • Dergi Adı: JOURNAL OF ASIAN CERAMIC SOCIETIES
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
  • Sayfa Sayıları: ss.257-261
  • Anahtar Kelimeler: Porous Si3N4, Starch, Pore channel size, Permeability
  • Anadolu Üniversitesi Adresli: Evet

Özet

In this study, the possibility of enhancing permeability of porous Si3N4 ceramics was studied by using pore former additive (potato starch; 0-30 vol.%). The open porosity of samples changed between 52 and 66% as the mean pore channel size values ranged from 0.9 to 4 tim. Increasing starch addition provides bimodal distribution of pore size channels by accompanying abrupt increment in non-Darcian permeability. k(2) value rised from 8.7 x 10(-10) m to 30.1 x 10(-10) m. (C) 2013 The Ceramic Society of Japan and the Korean Ceramic Society. Production and hosting by Elsevier B.V. All rights reserved.