Microstructure and mechanical properties of hydroxyapatite ceramics with zirconia dispersion prepared by post-sintering

Koji Ioku; Masahiro Yoshimura; Shigeyuki Somiya

doi:10.1016/0142-9612(90)90053-S

Microstructure and mechanical properties of hydroxyapatite ceramics with zirconia dispersion prepared by post-sintering

Koji Ioku
, Masahiro Yoshimura
, Shigeyuki Somiya

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

89 Citations (Scopus)

Abstract

Hydroxyapatite ceramics with zirconia dispersion from fine powders synthesized hydrothermally were post-sintered at 1000-1300°C under 200 M Pa of argon for 1 h without capsules, after normal sintering in air at 1200°C for 3 h. Densification was most significant with post-sintering at 1200°C. Fracture toughness, Vickers hardness and elastic properties of these materials were investigated. Post-sintering gave twice the K₁c value of transparent pure hydroxyapatite ceramics. Vickers hardness and Young's modulus of the ceramics were increased by post-sintering.

Original language	English
Pages (from-to)	57-61
Number of pages	5
Journal	Biomaterials
Volume	11
Issue number	1
DOIs	https://doi.org/10.1016/0142-9612(90)90053-S
Publication status	Published - 1990 Jan

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Ceramics and Composites
Bioengineering
Biophysics
Biomaterials

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10.1016/0142-9612(90)90053-S

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abstract = "Hydroxyapatite ceramics with zirconia dispersion from fine powders synthesized hydrothermally were post-sintered at 1000-1300°C under 200 M Pa of argon for 1 h without capsules, after normal sintering in air at 1200°C for 3 h. Densification was most significant with post-sintering at 1200°C. Fracture toughness, Vickers hardness and elastic properties of these materials were investigated. Post-sintering gave twice the K1c value of transparent pure hydroxyapatite ceramics. Vickers hardness and Young's modulus of the ceramics were increased by post-sintering.",

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AU - Ioku, Koji

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AU - Somiya, Shigeyuki

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Y1 - 1990/1

N2 - Hydroxyapatite ceramics with zirconia dispersion from fine powders synthesized hydrothermally were post-sintered at 1000-1300°C under 200 M Pa of argon for 1 h without capsules, after normal sintering in air at 1200°C for 3 h. Densification was most significant with post-sintering at 1200°C. Fracture toughness, Vickers hardness and elastic properties of these materials were investigated. Post-sintering gave twice the K1c value of transparent pure hydroxyapatite ceramics. Vickers hardness and Young's modulus of the ceramics were increased by post-sintering.

AB - Hydroxyapatite ceramics with zirconia dispersion from fine powders synthesized hydrothermally were post-sintered at 1000-1300°C under 200 M Pa of argon for 1 h without capsules, after normal sintering in air at 1200°C for 3 h. Densification was most significant with post-sintering at 1200°C. Fracture toughness, Vickers hardness and elastic properties of these materials were investigated. Post-sintering gave twice the K1c value of transparent pure hydroxyapatite ceramics. Vickers hardness and Young's modulus of the ceramics were increased by post-sintering.

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Microstructure and mechanical properties of hydroxyapatite ceramics with zirconia dispersion prepared by post-sintering

Abstract

All Science Journal Classification (ASJC) codes

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