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Interceram is SCOPUS-listed!
SCImago Journal & Country Rank

  Zhang, Shaowei ; Yuan, Lei ; Yu, J.
Low Temperature Molten Salt-Mediated Preparation of Porous Ceramics
Interceram 58 (2009) [6] 374-377
Refractories


Abstract:
The feasibility of using the molten salt technique in preparing porous ceramics was illustrated by using porous CaTiO3, TiC and Si3N4 as working tools. Low melting salts such as alkali chlorides could act as either reaction/sintering media or pore-formers, or both, thus leading to reduced synthesis temperatures and/or increased levels of porosity. Porous CaTiO3 containing 65% apparent porosity was successfully prepared after 5 h at 950 °C by using CaCl2 as the reaction medium, porous TiC containing 50 % apparent porosity prepared after 4 h at 1100 °C by using the KCl-NaCl eutectic salt as both the reaction medium and the pore former, and porous Si3N4 containing 59 % apparent porosity prepared at 1350 1450 °C by using KCl as the pore former. The above promising results suggested that after further development the molten salt technique could be used to prepare various types of high quality porous ceramics for industrial applications.

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