Aligned porous alumina ceramics with high compressive strengths for bone tissue engineering

초록

We fabricated highly aligned porous alumina ceramics with interconnection sizes of >50 mu m by the unidirectional freeze casting of ceramic/camphene slurries at 3 degrees C and subsequent treatment at 35 degrees C for 24 h, followed by sintering at 1600 degrees C for 3 h. As the initial alumina content employed in the slurry was increased from 10 to 25 vol.% and the porosity was linearly decreased from 82 to 59%, while the compressive strength was remarkably improved from 11 to 95 MPa. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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