Paper Title:
Porous Alumina from Protein Foaming-Consolidation Method Containing Hydrothermal Derived Hydroxyapatite Powder
  Abstract

Porous alumina containing hydrothermal derived hydroxyapatite (HA) composite were successfully fabricated via protein foaming-consolidation method. Alumina and HA powders were mixed with yolk, starch and darvan 821 A at an adjusted mass ratio to make slurry. The slurries were cast into cylindrical shaped molds and then dried for foaming and consolidation process. Subsequently, the dried bodies were burned at 600°C for 1 h, followed by sintering at temperatures of 1300 - 1400°C for 2 h. The porous alumina-HA composites with pore size in the range of 95-300 µm and density of 2.7 – 2.9 g cm-3 were obtained. Porosity of bodies decreased from 31.7 to 27.6% when sintering temperatures increased from 1300 to 1400°C. The increasing HA-to-alumina mass ratio from 0.2 to 0.8 w/w increased compressive strength of sintered bodies from 2.3 to 10.0 MPa. XRD pattern results show intensity of tricalcium phosphate (TCP) phase increased with sintering temperatures and also found that the sintering process did not alter phases in the porous bodies.

  Info
Periodical
Chapter
Chapter 6: New Materials and Advanced Materials
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
782-785
DOI
10.4028/www.scientific.net/AMM.117-119.782
Citation
A. Fadli, I. Sopyan, R. Singh, "Porous Alumina from Protein Foaming-Consolidation Method Containing Hydrothermal Derived Hydroxyapatite Powder", Applied Mechanics and Materials, Vols. 117-119, pp. 782-785, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: C. Ghiţulica, Ecaterina Andronescu, G. Dumitru, Stefania Stoleriu
2247
Authors: Seong Min Choi, Uraiwan Leela-adisorn, Sawao Honda, Shinobu Hashimoto, Hideo Awaji
Abstract:Intra-type structure of ceramic matrix composites (CMCs) can improve the mechanical properties of ceramic materials. In this work, we used...
115
Authors: Won Seung Cho, Yeon Chul Yoo, Chin Myung Whang, Nam Hee Cho, Woon Suk Hwang, Jun Gyu Kim, Young Jae Kwon
Abstract:Porous alumina bodies were successfully prepared by spark plasma sintering of alumina powders with different amounts of graphite, and by...
1056
Authors: R. Svinka, V. Svinka, G. Bula, T. Juettner, E. Palcevskis
Abstract:Light weight materials are produced according to the aerated concrete technology using slurries. In concentrated suspensions pore formation...
2266
Authors: Qi Bing Chang, Ke Yang, Xia Wang, Ke Kai Cheng, Yong Qing Wang, Jian Er Zhou
Chapter 1: Raw Materials and Processing
Abstract:The high sintering temperature of Al2O3 is the main reason of the high cost of the common ceramic membrane supports. To...
56