Influence of Zn and Mg doping on the sintering behavior and phase transformation of tricalcium phosphate based ceramics
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Materials Science Forum
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Resumo
β-tricalcium phosphate based ceramics (β-TCP) are resorbable biomaterials used as bone
substitutive materials. Several ions can substitute specific Ca positions in the crystalline structure of
TCP, so that general Me-TCP can be obtained. Particularly, magnesium can increase the
temperature of β-α-TCP transformation while zinc stimulates the bone formation. In this work, the
influence of magnesium or zinc ions on the sintering behavior of Me-TCP was investigated. The
powders were produced through wet chemical synthesis with a freeze drying process. The powders
were calcined and subsequently uniaxially pressed into pellets. The pellets were sintered up to
1300°C/1h. The influence of Mg or Zn doping was investigated by dilatometric studies, thermal
analysis and XRD. The microstructure was evaluated through SEM. The results suggest that Mg
increased temperature of β-α-TCP phase transformation. The Me-doped TCP samples can be
considered as promising biomaterials, having stimulatory effect of Zn or suitable densification due
to Mg addition.
Como referenciar
KAI, KAREN C.; MACHADO, CARLOS A.V.A.; GENOVA, LUIS A.; MARCHI, JULIANA. Influence of Zn and Mg doping on the sintering behavior and phase transformation of tricalcium phosphate based ceramics. Materials Science Forum, v. 805, p. 706-711, 2015. DOI: 10.4028/www.scientific.net/MSF.805.706. Disponível em: http://repositorio.ipen.br/handle/123456789/27414. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.