Setting Properties of Brushite and Hydroxyapatite Compound Cements

Abstract:

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In this work properties of potential brushite (CaHPO4•2H2O) and hydroxyapatite (Ca10(PO4)6(OH)2) compound cements are investigated. Calcium dihydrogenphosphate monohydrate (MCPM) and α-tricalcium phosphate (α-TCP) were the starting materials for investigated cements. Setting time is controlled by adding setting time retarder – citrate ions and initially unreactive filler - monetite (CaHPO4). Some compositions of obtained cements contain both brushite and hydroxyapatite. However a substantial amount of monetite was present even if it is not added as filler. There is a strong evidence of presence of octacalcium phosphate – a precursor phase for hydroxyapatite that lacks long range order.

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Periodical:

Edited by:

Arturs Medvids

Pages:

239-242

DOI:

10.4028/www.scientific.net/AMR.222.239

Citation:

Z. Irbe et al., "Setting Properties of Brushite and Hydroxyapatite Compound Cements", Advanced Materials Research, Vol. 222, pp. 239-242, 2011

Online since:

April 2011

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$35.00

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