Production of porous biomaterials based on glass-reinforced hydroxyapatite composites

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

M. H. P. da Silva (Autor) Outra; A. F. Lemos (Autor) Outra; J. M. F. Ferreira (Autor) Outra; Maria Ascensão Lopes (Autor) FEUP; José D. Santos (Autor) FEUP

Revista

Título: Advanced Materials Forum I

Vol. 230-2

Páginas: 483-486

Editora: Trans Tech Publications

Indexação

ISI Web of Knowledge - 8 Citações

ISI Web of Science

Scopus - 15 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

Outras Informações

ID Authenticus: P-000-QRD

DOI: 10.4028/www.scientific.net/KEM.230-232.483

Abstract (EN): In this study, porous GR-HA composites were produced using a calcium-phosphate glass with the composition, in mol%, 75P(2)O(5)-15CaO-10CaF(2). The composites were obtained by wet mixing 4.0% (w/w) of the glasses with hydroxyapatite.(HA) powder (batch P120) (Plasma Biotal; Tideswell, U.K.), pressing and sintering. Two different organic additives were used as pore formers: potato starch and almond crust. This processing route was effective in producing a homogeneous microstructure of equiaxed grains. The bulk density of the samples decreased with the volume fraction increase in the content of pore formers. Scanning electron microscopy and mercury porosimetry analyses showed to be complementary techniques in characterising the pore size and distribution.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4