New technique for bonding hydroxyapatite ceramics and titanium by the hydrothermal hot-pressing method

Takamasa Onoki; Kazuyuki Hosoi; Toshiyuki Hashida

doi:10.1016/j.scriptamat.2004.12.011

New technique for bonding hydroxyapatite ceramics and titanium by the hydrothermal hot-pressing method

Takamasa Onoki, Kazuyuki Hosoi, Toshiyuki Hashida

ENG - Fracture and Reliability Research Institute

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

37 Citations (Scopus)

Abstract

Solidification of hydroxyapatite (HA:Ca₁₀(PO₄) ₆(OH)₂) and its bonding with titanium (Ti) was achieved simultaneously by using the hydrothermal hot-pressing method at temperatures as low as 150°C with no special surface treatment of Ti. A mixture of calcium hydrogen phosphate dihydrate and calcium hydroxide was used as the starting powder material for solidifying HA. Three-point bending tests were conducted to obtain an estimate of the fracture toughness for the HA/Ti interface as well as for the HA ceramics only. The fracture toughness tests showed that the induced crack from the pre-crack tip deviated from the HA/Ti interface and propagated into the HA. The fracture toughness determined on the bonded HA/Ti specimen was close to that of the HA ceramics only (∼0.30 MPa m^1/2).

Original language	English
Pages (from-to)	767-770
Number of pages	4
Journal	Scripta Materialia
Volume	52
Issue number	8
DOIs	https://doi.org/10.1016/j.scriptamat.2004.12.011
Publication status	Published - 2005 Apr 1

Keywords

Bonding
Hydrothermal
Hydroxyapatite
Titanium
Toughness

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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title = "New technique for bonding hydroxyapatite ceramics and titanium by the hydrothermal hot-pressing method",

abstract = "Solidification of hydroxyapatite (HA:Ca10(PO4) 6(OH)2) and its bonding with titanium (Ti) was achieved simultaneously by using the hydrothermal hot-pressing method at temperatures as low as 150°C with no special surface treatment of Ti. A mixture of calcium hydrogen phosphate dihydrate and calcium hydroxide was used as the starting powder material for solidifying HA. Three-point bending tests were conducted to obtain an estimate of the fracture toughness for the HA/Ti interface as well as for the HA ceramics only. The fracture toughness tests showed that the induced crack from the pre-crack tip deviated from the HA/Ti interface and propagated into the HA. The fracture toughness determined on the bonded HA/Ti specimen was close to that of the HA ceramics only (∼0.30 MPa m1/2).",

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AU - Hosoi, Kazuyuki

AU - Hashida, Toshiyuki

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N2 - Solidification of hydroxyapatite (HA:Ca10(PO4) 6(OH)2) and its bonding with titanium (Ti) was achieved simultaneously by using the hydrothermal hot-pressing method at temperatures as low as 150°C with no special surface treatment of Ti. A mixture of calcium hydrogen phosphate dihydrate and calcium hydroxide was used as the starting powder material for solidifying HA. Three-point bending tests were conducted to obtain an estimate of the fracture toughness for the HA/Ti interface as well as for the HA ceramics only. The fracture toughness tests showed that the induced crack from the pre-crack tip deviated from the HA/Ti interface and propagated into the HA. The fracture toughness determined on the bonded HA/Ti specimen was close to that of the HA ceramics only (∼0.30 MPa m1/2).

AB - Solidification of hydroxyapatite (HA:Ca10(PO4) 6(OH)2) and its bonding with titanium (Ti) was achieved simultaneously by using the hydrothermal hot-pressing method at temperatures as low as 150°C with no special surface treatment of Ti. A mixture of calcium hydrogen phosphate dihydrate and calcium hydroxide was used as the starting powder material for solidifying HA. Three-point bending tests were conducted to obtain an estimate of the fracture toughness for the HA/Ti interface as well as for the HA ceramics only. The fracture toughness tests showed that the induced crack from the pre-crack tip deviated from the HA/Ti interface and propagated into the HA. The fracture toughness determined on the bonded HA/Ti specimen was close to that of the HA ceramics only (∼0.30 MPa m1/2).

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