Mechano-chemical synthesis and characterization of nanostructured β-TCP powder

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• 作者：Daiwon Choi ; Prashant N. Kumta
• 关键词：Hydroxyapatite ; β ; -TCP ; Mechano-chemical ; Biodegradable
• 刊名：Materials Science and Engineering: C
• 出版年：2007
• 出版时间：April 2007
• 年：2007
• 卷：27
• 期：3
• 页码：377-381
• 全文大小：419 K

文摘

Tricalcium phosphates (Ca₃(PO₄)₂: β-TCP) are known for their biodegradable characteristics and are essential components of natural bone. Unlike hydroxyapatite (HAp), β-TCP is not the stable phase at room temperature. It is normally obtained by solid-state synthesis at temperatures in excess of 600 °C where calcium deficient hydroxyapatite transforms to β-TCP. Low temperature approaches for synthesizing this phase could offer unique opportunities with regards to controlling the microstructure and its degradable characteristics. In this study, the possibility of synthesizing β-TCP directly by a mechano-chemical route has been investigated. The starting materials were mechanically milled for various time periods. The resultant calcium phosphate powder has been analyzed using XRD, FTIR, DTA/TGA and SEM.