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Preparation of Polymethylmethacrylate‐Reinforced Functionally Graded Hydroxyapatite Composites
Author(s) -
Ohgaki Masataka,
Yamashita Kimihiro
Publication year - 2003
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2003.tb03492.x
Subject(s) - composite material , materials science , brittleness , ceramic , composite number , scanning electron microscope , polymer , ceramic matrix composite
A functionally graded hybridization approach has been used in the formation of polymer‐ceramic composites of polymethylmethacrylate (PMMA) and hydroxyapatite (HAp). HAp was successfully reinforced by sedimentary HAp distributions on a PMMA matrix using a centrifuge to avoid stress convergence on the interface. The stress‐strain curves of the functionally graded PMMA‐HAp composite showed sufficient mechanical strength with reduced brittleness. Scanning electron micrographs also showed evidence of exposed HAp on the surface of the composites.