Linked Life Data

15348941

Source:http://linkedlifedata.com/resource/pubmed/id/15348941

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2004-9-6
pubmed:abstractText
Dahllite is a synthetic carbonated hydroxyapatite with a carbonate ion content similar to bone mineral. The first objective of this study was to investigate the stoichiometric conditions under which dahllite formation occurs in a powder mixture of alpha-Ca3(PO4)2, Ca(H2PO4)2 and CaCO3. The second objective was to identify how these conditions apply to commercially available cement, Skeletal Repair System (SRS), and other alpha-Ca3(PO4)2-based cements currently under investigation. The stoichiometric coefficients were found to be a function of both the percentage of carbonate ions incorporated into the hydroxyapatite structure, and the amount of CO2 released during the reaction. As a consequence, a stability field has been obtained where different initial proportions of the reactants in the powder mixture should give the same reaction product if sufficient CO2 is released into the solution. However, increasing amounts of CaCO3 in the initial mixture have been shown to affect the solution pH in such a way that only partial reaction of the reactants takes place. SRS and other alpha-Ca3(PO4)2-based cements have been located inside the stability field and a comparison between their reported setting and hardening properties has been performed.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Dec
pubmed:issn
0957-4530
pubmed:author
pubmed:copyrightInfo
Copyright 1998 Kluwer Academic Publishers
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
789-92
pubmed:year
1998
pubmed:articleTitle
Synthesis of dahllite through a cement setting reaction.
pubmed:affiliation
Department of Materials Science and Metallurgy, Universitat Politècnica de Catalunya, Avda. Diagonal 647, 08028-Barcelona, Spain e.fernandez@qmw.ac.uk
pubmed:publicationType
Journal Article