Paper Title:

Bioactive Porous Silica Ceramics Prepared Using Rice Husk Ash by Gelcasting Method

Periodical Advanced Materials Research (Volume 548)
Main Theme Material and Manufacturing Technology III
Edited by K.M. Gupta
Pages 12-16
DOI 10.4028/www.scientific.net/AMR.548.12
Citation Jyoti Prakash Nayak et al., 2012, Advanced Materials Research, 548, 12
Online since July, 2012
Authors Jyoti Prakash Nayak, Japes Bera
Keywords Bioactive, Bioeramics, Gelcasting, Silica
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Abstract

Silica-based porous bioactive ceramics was prepared by gel-casting method using silica xerogel powder. Xerogel was derived from rice husk ash. 42 vol.% solid containing slurry was prepared in 1:30 (MBAM:AM) monomer cross-linker solution. The srurry was thixotropic. Gel-casted body was machined efficiently. Dired cast body was sintered at 1100oC. Apatite layer was formed on silica body during In vitro bioactivity experiment. The results suggest that the gel-casted silica ceramics can be used as a bioceramics.