| Title | Production of porous biomaterials based on glass-reinforced hydroxyapatite composites |
| Publication Type | Book |
| Year of Publication | 2002 |
| Authors | Prado da Silva, MH, Lemos, AF, Ferreira, JMF, Lopes, MA, Santos, JD |
| Series Editor | T., V |
| Series Title | Key Engineering MaterialsKey Eng Mat |
| Volume | 230-232 |
| Number of Pages | 483 - 486 |
| City | Coimbra |
| ISBN Number | 10139826 (ISSN) |
| Keywords | Biomaterials, Composite materials, glass, Glass-reinforced hydroxyapatite composites, GR-HA Composites, hydroxyapatite, Macroporous Bioceramics, Mercury (metal), Microstructure, Organic Additives, Pore size, Porous materials, Powders, Pressing (forming), Scanning electron microscopy, Sintering, Starch |
| Abstract | In this study, porous GR-HA composites were produced using a calcium-phosphate glass with the composition, in mol%, 75P 2O
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.
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| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-0036432238&partnerID=40&md5=9af5590c70f4defe5e87b9a72042e11b |
