Nanostructure Processing of Hydroxyapatite-based Bioceramics

Autor:	and Atsushi Nakahira, Jackie Y. Ying, Nathaniel J. Gleason, Edward S. Ahn
Rok vydání:	2001
Předmět:	Nanostructure Materials science Precipitation (chemistry) Mechanical Engineering Sintering Bioengineering General Chemistry Condensed Matter Physics Microstructure Nanocrystalline material Mechanical strength General Materials Science Cubic zirconia Composite material Yttria-stabilized zirconia
Zdroj:	Nano Letters. 1:149-153
ISSN:	1530-6992 1530-6984
Popis:	Nanostructure processing was applied to derive hydroxyapatite and hydroxyapatite-zirconia bioceramics with ultrafine microstructures and significantly improved mechanical properties for orthopedic and dental implant applications. Despite its attractive bioactivity, hydroxyapatite (HAP) has been limited in applications due to the poor processability and mechanical strength of the conventional material. Through nanostructure processing, high-strength HAP has been obtained by pressure-assisted sintering. To further toughen the HAP matrix, nanocrystalline yttria-stabilized zirconia (YSZ) dispersoids have been introduced during HAP precipitation. The nanostructured HAP and HAP−YSZ composites demonstrated excellent chemical and microstructural uniformity and mechanical properties, compared to conventional coarse-grained systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5b66335e5aceb99ccaa650d31aa950b https://doi.org/10.1021/nl0055299 Zobrazit plný text záznamu