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Publikācija: Changes in Phase Composition and Mechanical Strength during Aging of Calcium Phosphate Cements
| Publikācijas veids | Raksts konferenču tēžu krājumā |
|---|---|
| Pamatdarbībai piesaistītais finansējums | Nav zināms |
| Aizstāvēšana: | , |
| Publikācijas valoda | English (en) |
| Nosaukums oriģinālvalodā | Changes in Phase Composition and Mechanical Strength during Aging of Calcium Phosphate Cements |
| Pētniecības nozare | 2. Inženierzinātnes un tehnoloģijas |
| Pētniecības apakšnozare | 2.5. Materiālzinātne |
| Autori |
Zilgma Irbe
Līga Bērziņa-Cimdiņa Jānis Ločs |
| Atslēgas vārdi | Biomaterials, bone cement, calcium phosphate cements, calcium phosphates |
| Anotācija | In this work the changes in compressive strength and phase composition in respect of aging time of alpha-tricalcium phosphate (α-TCP) cements are examined. The increase of compressiove strength is time and initial pH dependent. Increase of aging time and initial pH leads to the increase of mechanical properties. A compressive strength up to 15 MPa was reached for cements with powder/liquid ratio 1.75g/1ml and initial liquid phase pH 8. More rapid conversion of α-TCP to hydroxyapatite occours at higher liquid phase pH values. The lower compressive strength of cements with acidic initial liquid phase pH can be explained by slower conversion of α-TCP and higher porosity after setting. The best setting and mechanical properties was achieved for cements with basic initial pH (8). |
| Atsauce | Irbe, Z., Bērziņa-Cimdiņa, L., Ločs, J. Changes in Phase Composition and Mechanical Strength during Aging of Calcium Phosphate Cements. No: Transactions of 9th World Biomaterials Congress (WBC), Ķīna, Chengdu, 1.-5. jūnijs, 2012. Chengdu: WBC, 2012, 1.-1.lpp. |
| Pilnais teksts | |
| ID | 13338 |