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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2162| Title: | Influence of process conditions on hydroxyapatite crystallinity obtained by direct crystallization. |
| Keywords: | Hydroxyapatite Bioceramic Biomaterial crystallization recipitation |
| Publisher: | Universidade Federal de São Carlos |
| Description: | Crystallization from solutions was applied to produce stoichiometric and crystalline hydroxyapatite (HAP) suitable for use as a biomaterial. This was accomplished by keeping a low supersaturation through the following procedure: semi-continuous operating mode, slow reactant addition rate and addition of a calcium complexing agent. A high temperature (90 °C) and probably carbonate incorporation also favored the formation of a well crystallized material. A qualitative correlation was found between the supersaturation and HAP properties such as crystallinity and particle size Near-stoichiometric and well crystallized hydroxyapatite was obtained by means of a semi-continuous procedure. Changes in crystallinity and particle size due to varying reagent addition rate, base concentration and pH were consistent with the corresponding changes in the su- Financiadora de Estudos e Projetos do Ministério de Ciência e Tecnologia, Brazil - and CYTED - Programa Iberoamericano de Ciencia y Tecnologia para el Desarollo, proj. VIII.6, Spain - for the financial support. Peer reviewed |
| URI: | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2162 |
| Other Identifiers: | Mat. Res., Apr 1999, vol.2, no.2, p.59-62 1516-1439 http://hdl.handle.net/10261/2162 |
| Appears in Collections: | Digital Csic |
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