Examination of calcium-phosphates prepared from eggshell

被引：8
作者：
Balazsi, Csaba
Kover, Zsuzsanna
Horvath, Eniko
Nemeth, Csaba
Kasztovszky, Zsolt
Kurunczi, Sandor
Weber, Ferenc
机构：
[1] Res Inst Tech Phys & Mat Sci, Ceram & Composites Lab, H-1525 Budapest, Hungary
[2] Res Inst Tech Phys & Mat Sci, Lab Nanostruct Res, Budapest, Hungary
[3] Chem Res Ctr, Inst Isotope & Surface Chem, H-1525 Budapest, Hungary
[4] Chem Res Ctr, Inst Isotope & Surface Chem, Dept Nucl Res, Budapest, Hungary
[5] Res Inst Tech Phys & Mat Sci, Nanosensor Lab, H-1525 Budapest, Hungary
来源：
Materials Science, Testing and Informatics III | 2007年 / 537-538卷
关键词：
eggshell; calcium phophates; hydroxyapatite; nanograins; biocomposites;
D O I：
10.4028/www.scientific.net/MSF.537-538.105
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Calcium phosphates and hydroxyapatite nanopowders have been produced by using eggshell derived raw materials and phosphoric acid at different mixing ratios. The characteristics of the end product have been found to be influenced by acid/CaO mixing ratio, milling time and heat treatment applied. Calcium phosphate foams resulted at higher acid/CaO mixing ratio with high specific surface area. Compositional analyses showed that the Ca/P atomic ratios of the calcium phosphate foams are significantly smaller than for hydroxyapatite samples. At higher sintering temperatures calcium phosphate thin and thick film coatings have been produced by a condensation method. The calcium phosphate thin films consist of micron size crystals and nanofibrous layers.
引用
收藏
页码：105 / 112
页数：8
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