Biaxial fatigue of sintered hydroxylapatite

T. Hussain; A. Gholinia; C. Leach

Biaxial fatigue of sintered hydroxylapatite

T. Hussain^*, A. Gholinia, C. Leach

^*Corresponding author for this work

Materials Engineering

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

Abstract

The mechanical properties of a commercial and a laboratory prepared hydroxylapatite (HAP) were compared. The biaxial flexure strength, fracture toughness and fatigue crack growth in dry and wet (saline) environments were measured Strength and fracture toughness values of around 50Mpa and 1MPa √m were measured in biaxial flexure. Average fatigue crack growth rates were calculated from the mean growth rate of the four crack tips and were found to be in the range 10^-8 to 10^-9m.cycle^-1 at R=0.5 and K_max in the range 0.2 to 0.3 MPa √m. Dry crack growth rates were found to be approximately six times slower than those measured under wet conditions for the same K_max.

Original language	English
Pages (from-to)	544-547
Number of pages	4
Journal	Key Engineering Materials
Volume	132-136
Publication status	Published - 1997

Keywords

Biomedical materials
Ceramic
Fatigue
Stress

Cite this

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title = "Biaxial fatigue of sintered hydroxylapatite",

abstract = "The mechanical properties of a commercial and a laboratory prepared hydroxylapatite (HAP) were compared. The biaxial flexure strength, fracture toughness and fatigue crack growth in dry and wet (saline) environments were measured Strength and fracture toughness values of around 50Mpa and 1MPa √m were measured in biaxial flexure. Average fatigue crack growth rates were calculated from the mean growth rate of the four crack tips and were found to be in the range 10-8 to 10-9m.cycle-1 at R=0.5 and Kmax in the range 0.2 to 0.3 MPa √m. Dry crack growth rates were found to be approximately six times slower than those measured under wet conditions for the same Kmax.",

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author = "T. Hussain and A. Gholinia and C. Leach",

year = "1997",

language = "English",

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pages = "544--547",

journal = "Key Engineering Materials",

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T1 - Biaxial fatigue of sintered hydroxylapatite

AU - Hussain, T.

AU - Gholinia, A.

AU - Leach, C.

PY - 1997

Y1 - 1997

N2 - The mechanical properties of a commercial and a laboratory prepared hydroxylapatite (HAP) were compared. The biaxial flexure strength, fracture toughness and fatigue crack growth in dry and wet (saline) environments were measured Strength and fracture toughness values of around 50Mpa and 1MPa √m were measured in biaxial flexure. Average fatigue crack growth rates were calculated from the mean growth rate of the four crack tips and were found to be in the range 10-8 to 10-9m.cycle-1 at R=0.5 and Kmax in the range 0.2 to 0.3 MPa √m. Dry crack growth rates were found to be approximately six times slower than those measured under wet conditions for the same Kmax.

AB - The mechanical properties of a commercial and a laboratory prepared hydroxylapatite (HAP) were compared. The biaxial flexure strength, fracture toughness and fatigue crack growth in dry and wet (saline) environments were measured Strength and fracture toughness values of around 50Mpa and 1MPa √m were measured in biaxial flexure. Average fatigue crack growth rates were calculated from the mean growth rate of the four crack tips and were found to be in the range 10-8 to 10-9m.cycle-1 at R=0.5 and Kmax in the range 0.2 to 0.3 MPa √m. Dry crack growth rates were found to be approximately six times slower than those measured under wet conditions for the same Kmax.

KW - Biomedical materials

KW - Ceramic

KW - Fatigue

KW - Stress

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M3 - Article

AN - SCOPUS:0345988667

SN - 1013-9826

VL - 132-136

SP - 544

EP - 547

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Biaxial fatigue of sintered hydroxylapatite

Abstract

Keywords

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