Paper Title:
Preparation of Dense Biphasic Calcium Phosphate Ceramics Using Eggshell Derived Nanopowders
  Abstract

This paper discusses the dependence of microstructure and mechanical properties of sintered biphasic calcium phosphate (BCP) on sintering temperature and compacting pressure of BCP dense bodies. BCP nanopowders were prepared via hydrothermal method using eggshell as the calcium source, followed by compaction into circular disc shape at various pressure and sintered pressureless in air at various sintering temperatures. X-ray diffraction analysis of nanopowders revealed the existences of hydroxyapatite (HA) as the main phase, with β-tricalcium phosphate (β-TCP) and calcium pyrophosphate (CPP) as the second phases. Morphological evaluation by scanning electron microscopy showed BCP exhibited uniform microstructure at low temperature and coalescence of pores and exaggerated grain growth at increasing temperature. Mechanical strength tests shown by compression strength and Vickers’ hardness test revealed an increase of strength with increasing temperature of up to 1100°C, after which it dropped. Mechanical strength also proved to be better with higher compacting pressure.

  Info
Periodical
Chapter
Chapter 19: Nanofabrication, Nanometrology and Applications
Edited by
Wu Fan
Pages
3645-3649
DOI
10.4028/www.scientific.net/AMM.110-116.3645
Citation
I. Sopyan, S. F. Adlina, S.A. Mohamad, "Preparation of Dense Biphasic Calcium Phosphate Ceramics Using Eggshell Derived Nanopowders", Applied Mechanics and Materials, Vols. 110-116, pp. 3645-3649, 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: Iis Sopyan, Natasha Ahmad Nawawi, Qasim Hussain Shah
Abstract:Dense pure biphasic calcium phosphate (BCP) and Mn-doped BCP ceramics were fabricated via uniaxial pressing using the sol-gel derived...
393
Authors: Piyapong Pankaew, Ekachai Hoonnivathana, Pichet Limsuwan, Kittisakchai Naemchanthara
Abstract:Material that shows hydroxyapatite and β-tricalcium phosphate phases is called biphasic calcium phosphate (BCP). In present work, biphasic...
182
Authors: Kristine Salma, Zilgma Irbe, Dmitrijs Jakovlevs, Natalija Borodajenko, Liga Berzina-Cimdina
Abstract:In this work three different preparation techniques of biphasic calcium phosphate (BCP) bioceramics (consisting of both hydroxyapatite (HAp)...
255
Authors: Naruporn Monmaturapoj, Witoon Thepsuwan
II. Biomaterials Science
Abstract:Biphasic calcium phosphate (BCP) ceramic is commonly used in the biomedical applications particularly as a bone substitute due to its...
74
Authors: Shah Rizal Kasim, Nor Firdaus Muhamad, Sivakumar Ramakrishan
Abstract:The present report aims to fabricate biphasic calcium phosphate (BCP) biocomposite in order to study the effects of sintering temperature on...
475