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Carbon black sintering effects on the composition of multiphase calcium phosphate bioceramics
Wen-Cheng Chen,Chien-Ping Ju,Wen-Hsien Cheng,Jiin-Huey Chern Lin 한양대학교 세라믹연구소 2013 Journal of Ceramic Processing Research Vol.14 No.3
The presence of carbonate (CO3 2-) combined with calcium phosphates has been believed to increase the susceptibility of natural bone formation. This study was carried out to investigate the thermal properties of apatite in nano scale precipitates with added carbon black that could act as a sintering inhibitor and a carbonate preserver. In addition, the present study aimed to determine the effects of those additives and analyze their chemical compositions. Ceramics processed at different heating temperatures were compared and characterized. The results showed that a multiphase ceramic of apatite-calcium carbonate (CaCO3)-calcium oxide (CaO) was formed in a temperature range of 600 to 800 ο C. By observing the morphologies of the ceramics, the addition of carbon black which acts as a carbonate supplier in the heating processes and further as an inhibitor to prevent the sintering effect of the nano scale particles in sub-micro range efficiently at 1400 ο C were established.
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