Influence of processing parameters on structural characteristics of porous calcium phosphate samples: a study using an experimental design method
Título del documento: Influence of processing parameters on structural characteristics of porous calcium phosphate samples: a study using an experimental design method
Revista: Materials research
Base de datos: PERIÓDICA
Número de sistema: 000312807
ISSN: 1516-1439
Autors: 1


2
3
4
Institucions: 1Universidade Federal do Rio de Janeiro, Departamento de Engenharia de Materiais, Rio de Janeiro. Brasil
2Universidade Federal do Rio de Janeiro, Departamento de Engenharia Quimica, Rio de Janeiro. Brasil
3Universidade Federal do Rio de Janeiro, Departamento de Quimica Analitica, Rio de Janeiro. Brasil
4Ministerio da Ciencia e Tecnologia, Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro. Brasil
Any:
Període: Ene-Mar
Volum: 8
Número: 1
Paginació: 71-76
País: Brasil
Idioma: Inglés
Tipo de documento: Nota breve o noticia
Enfoque: Experimental
Resumen en inglés Synthetic porous ceramics can be used as three-dimensional scaffolds for bone repair. The aim of this work is to correlate process parameters with scaffolds structural characteristics. The factorial 2 level experimental design was chosen to study the effect of the Ca/P ratio (1.58 or 1.67), calcination temperature (1000 or 1150 °C) and porogen content (20 or 40%) on the calcium phosphate samples characteristics. The influence of such parameters was determined by X-ray diffraction, infrared spectroscopy and image analysis. It was observed that phase composition was basically a function of the Ca/P ratio of the raw material. The use of the porogen did not alter the hydroxyapatite (HA)/tricalcium phosphate (TCP) content, but induced changes in the relative content of TCP phase (alpha or beta). It is possible to design a porous sample with defined characteristics, and the model herein used can be considered as having a good predictive power
Disciplines Ingeniería,
Química,
Medicina
Paraules clau: Ingeniería de materiales,
Química analítica,
Terapéutica y rehabilitación,
Ingeniería biomédica,
Fosfato de calcio,
Implantes,
Huesos,
Porosidad
Keyword: Engineering,
Chemistry,
Medicine,
Materials engineering,
Analytical chemistry,
Therapeutics and rehabilitation,
Biomedical engineering,
Calcium phosphate,
Implants,
Bones,
Porosity
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