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Preparation of High‐Strength Calcium Phosphate Ceramics with Low Modulus of Elasticity Containing β‐Ca(PO 3 ) 2 Fibers
Author(s) -
Kasuga Toshihiro,
Ota Yoshio,
Tsuji Kenji,
Abe Yoshihiro
Publication year - 1996
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.1151-2916.1996.tb08001.x
Subject(s) - materials science , ceramic , flexural strength , composite material , hot pressing , fracture toughness , young's modulus , calcium , elastic modulus , microstructure , composite number , compressive strength , mineralogy , metallurgy , chemistry
Novel calcium phosphate ceramics were fabricated by hot‐pressing fibrous products extracted from crystallized products of calcium ultraphosphate glasses by aqueous leaching. The ceramics were dense materials with a relative density of >95%; these ceramics were composite materials that consisted of β‐Ca(PO 3 ) 2 fibrous crystals with CaO–P 2 O 5 glass, which was formed during hot pressing, as the matrix phase. These ceramics showed a high bending strength of 150–220 MPa and a low Young's modulus of 30–60 GPa. The high toughness contributed to the high strength, with fiber pull‐out and crack deflection observed as the primary toughening mechanism.