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РЖ ВИНИТИ 34 (BI38) 96.07-04А3.319

Development of calcium phosphate based functional gradient bioceramics [Text] / Masayuki Kon [et al.] // Biomaterials. - 1995. - Vol. 16, N 9. - P709-714 . - ISSN 0142-9612
Перевод заглавия: Разработка основанных на кальцийфосфате биокерамик с функциональным градиентом
Аннотация: A functional gradient bioceramic that can function gradually with respect to body tissue was studied by changing the composition of calcium phosphate gradually from the surface to the inside. Diamond powder was spread on the surface of compact hydroxyapatite (HA) powder and fired at 1280'ГРАДУС'C under reduced pressure, followed by firing under atmospheric conditions. The sintered body thus prepared was dense and 'альфа'-tricalcium phosphate ('альфа'-TCP: 'альфа'-Ca[3](PO[4])[2]) was found on its surface. The content of 'альфа'-TCP gradually decreased with increasing depth from the surface. In contrast, the content of HA increased with increasing depth from the surface. The gradient ratio of 'альфа'-TCP and HA depends on the firing time for each condition, i.e. reduced or atmospheric pressure. The 'альфа'-TCP formation was ascribed to the decomposition of HA due to the spontaneous combustion of diamond powder. Япония, Dep. of Dental Eng., First Department of Oral and Maxillofacial Surgery, School of Dentistry, Tokushima Univ., 3-18-15, Kuramoto-cho, Tokushima, Tokushima 770. Ил. 7. Библ. 24

ГРНТИ	34.57.21

ВИНИТИ 341.57.21
Рубрики: БИОМАТЕРИАЛЫ
БИОКЕРАМИКА
ГИДРОКСИАПАТИТ
ТРИКАЛЬЦИЙФОСФАТ
ФУНКЦИОНАЛЬНЫЙ ГРАДИЕНТ

Доп.точки доступа:
Kon, Masayuki; Ishikawa, Kunio; Miyamoto, Youji; Asaoka, Kenzo

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