Campo DC | Valor | Idioma |
dc.contributor.author | Kon, Masayuki | - |
dc.contributor.author | Hirakata, Luciana Mayumi | - |
dc.contributor.author | Miyamoto, Youji | - |
dc.contributor.author | Kawano, Fumiaki | - |
dc.contributor.author | Asaoka, Kenzo | - |
dc.date.accessioned | 2012-04-25T14:22:08Z | - |
dc.date.available | 2012-04-25T14:22:08Z | - |
dc.date.issued | 2002 | - |
dc.identifier.issn | 0287-4547 | en_US |
dc.identifier.uri | http://hdl.handle.net/10923/897 | - |
dc.description.abstract | The purpose of this study was to examine or characterize the surface layer of a calcium phosphate ceramic with a gradual compositional change from alpha-tricalcium phosphate (alpha-TCP) on the surface to hydroxyapatite (HAP) on the inside. The surface of a dense HAP ceramic was acid-treated for 1 hour with orthophosphoric acid (H3PO4) solutions of several concentrations (0.5, 1.0 and 5.0 mol/L) or a buffered solution (pH 4.0) consisting of phosphate solutions. After acid treatment, specimens were heat-treated at 1,250 degrees C for 1 hour. X-ray photoelectron spectroscopy revealed that the compositional gradient layer could be modified on the surface of the HAP ceramic with all acid and heat treatments, and that 5.0 mol/L H3PO4 solution and heat treatments had a maximal thickness of approximately 2 microm for the surface-modified layer. It was confirmed that the outermost layer of HAP ceramics modified with the treatments, except 5.0 mol/L H3PO4 solution, showed a compound such alpha-TCP. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Japanese Society for Dental Materials and Devices | en_US |
dc.subject | APATITE CERAMIC | en_US |
dc.subject | SURFACE TREATMENT | en_US |
dc.subject | ALPHA-TRICALCIUM PHOSPHATE | en_US |
dc.subject | ODONTOLOGIA | en_US |
dc.subject | MATERIAIS DENTÁRIOS | en_US |
dc.title | Surface-layer modification of hydroxyapatite ceramic with acid and heat treatments | en_US |
dc.type | article | en_US |
dc.identifier.pmid | 12238785 | en_US |
dc.publisher.place | Porto Alegre | pt_BR |
dc.jtitle | Dental Materials Journal | en_US |
dc.publication.date | 2002 | en_US |
dc.volume | 21 | en_US |
dc.issue | 2 | en_US |
dc.spage | 170 | en_US |
dc.epage | 180 | en_US |
Aparece en las colecciones: | Artigo de Periódico
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