Novel machinable calcium phosphate/CaTiO3 composites

Celaletdin Ergun

doi:10.1016/j.ceramint.2010.11.025

Novel machinable calcium phosphate/CaTiO₃ composites

Celaletdin Ergun^*

^*Bu çalışma için yazışmadan sorumlu yazar

Makina Mühendisliği Bölümü

Araştırma sonucu: ???type-name??? › Makale › bilirkişi

10 Atıf (Scopus)

Özet

Hydroxylapatite/CaTiO₃ and tricalcium phosphate/CaTiO ₃ composites were prepared by pressureless air sintering and characterized in terms of phase stability, microstructure and pole drilling for their suitability for machining. In hydroxylapatite/CaTiO₃ composites, Ti incorporation into the apatite structure caused lattice shrinkage and eventual decomposition of the hydroxylapatite associated with the formation of α-tricalcium phosphate during sintering at 1100 °C. Later, α-tricalcium phosphate disappeared at 1300 °C, possibly reacting with CaTiO₃ at the expense of both phases. On the other hand, tricalcium phosphate/CaTiO₃ composites were thermally stable up to 1100 °C insuring a weak interface between the components, which is one of the requirements for machinability in ceramic composites. Drilling tests also verified their suitability for machining.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	1143-1146
Sayfa sayısı	4
Dergi	Ceramics International
Hacim	37
Basın numarası	3
DOI'lar	https://doi.org/10.1016/j.ceramint.2010.11.025
Yayın durumu	Yayınlandı - Nis 2011

Finansman

This work is partially supported by the Scientific & Technological Research Council of Turkey-BIDEB program. The author thanks to Prof. John W. Halloran (Department of Materials Science and Engineering, the University of Michigan, Ann Arbor, USA) for his valuable contributions.

Finansörler	Finansör numarası
Scientific & Technological Research Council

Belgeye Erişim

10.1016/j.ceramint.2010.11.025

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Novel machinable calcium phosphate/CaTiO3 composites",

abstract = "Hydroxylapatite/CaTiO3 and tricalcium phosphate/CaTiO 3 composites were prepared by pressureless air sintering and characterized in terms of phase stability, microstructure and pole drilling for their suitability for machining. In hydroxylapatite/CaTiO3 composites, Ti incorporation into the apatite structure caused lattice shrinkage and eventual decomposition of the hydroxylapatite associated with the formation of α-tricalcium phosphate during sintering at 1100 °C. Later, α-tricalcium phosphate disappeared at 1300 °C, possibly reacting with CaTiO3 at the expense of both phases. On the other hand, tricalcium phosphate/CaTiO3 composites were thermally stable up to 1100 °C insuring a weak interface between the components, which is one of the requirements for machinability in ceramic composites. Drilling tests also verified their suitability for machining.",

keywords = "CaTiO, Hydroxylapatite, Machinable ceramics, Tricalcium phosphate",

author = "Celaletdin Ergun",

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doi = "10.1016/j.ceramint.2010.11.025",

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AB - Hydroxylapatite/CaTiO3 and tricalcium phosphate/CaTiO 3 composites were prepared by pressureless air sintering and characterized in terms of phase stability, microstructure and pole drilling for their suitability for machining. In hydroxylapatite/CaTiO3 composites, Ti incorporation into the apatite structure caused lattice shrinkage and eventual decomposition of the hydroxylapatite associated with the formation of α-tricalcium phosphate during sintering at 1100 °C. Later, α-tricalcium phosphate disappeared at 1300 °C, possibly reacting with CaTiO3 at the expense of both phases. On the other hand, tricalcium phosphate/CaTiO3 composites were thermally stable up to 1100 °C insuring a weak interface between the components, which is one of the requirements for machinability in ceramic composites. Drilling tests also verified their suitability for machining.

KW - CaTiO

KW - Hydroxylapatite

KW - Machinable ceramics

KW - Tricalcium phosphate

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