Biodegradation and Characterization of Phase Separated NaCa(PO3)3 and KCa(PO3)3 from Pure Ca(PO3)2

Abstract:

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Degradation characteristics of calcium metaphosphate (CMP) ceramics substituted by 5, 10, 15, 20 mol% of NaPO3 and KPO3, respectively, was evaluated in revised simulated body fluid (R-SBF) by measuring the weight change, flexural strength, crystalline phases, and surface morphology with immersion period. The weight loss of CMP substituted by KPO3 was significantly higher than that of CMP substituted by NaPO3. The weight loss in the KCa(PO3)3–CMP samples was due to the dissolution of KCa(PO3)3 phase. The flexural strength of NaCa(PO3)3–CMP samples increased, however, that of KCa(PO3)3–CMP samples decreased significantly due to the dissolution of KCa(PO3) phase with immersion period. The dissolution of KCa(PO3)3 phase formed a pore structure in KCa(PO3)3–CMP samples.

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Periodical:

Key Engineering Materials (Volumes 309-311)

Main Theme:

Edited by:

Takashi Nakamura, Kimihiro Yamashita and Masashi Neo

Pages:

211-214

DOI:

10.4028/www.scientific.net/KEM.309-311.211

Citation:

S. S. Chun et al., "Biodegradation and Characterization of Phase Separated NaCa(PO3)3 and KCa(PO3)3 from Pure Ca(PO3)2 ", Key Engineering Materials, Vols. 309-311, pp. 211-214, 2006

Online since:

May 2006

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$35.00

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