Synthesis and characterization of machinable calcium phosphate/lanthanum phosphate composites

Celaletdin Ergun

doi:10.1016/j.jmatprotec.2007.07.041

Synthesis and characterization of machinable calcium phosphate/lanthanum phosphate composites

Celaletdin Ergun^*

^*Bu çalışma için yazışmadan sorumlu yazar

Makina Mühendisliği Bölümü

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

22 Atıf (Scopus)

Özet

Hydroxylapatite (HA) and tricalcium phosphate (TCP) composites with lanthanum phosphate were prepared with pressureless air sintering at 500, 700, 900, 1100 and 1300 °C for 2 h. The composites were characterized in terms of phase stability during sintering, microstructural evaluation with XRD, SEM and machinability with simple drilling operation. At sintering temperatures higher than 700 °C, hydroxylapatite and lanthanum phosphate phases reacted and formed Ca₈La₂(PO₄)₆O₂. On the other hand, tricalcium phosphate and lanthanum phosphate composites were stable up to 1100 °C. However, partial reaction was observed during sintering at 1300 °C. As a result, tricalcium phosphate and lanthanum phosphate composites sintered at 1100 °C showed phase stability insuring weak interface. Thus, these composites fulfilled the requirement for machinability.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	178-184
Sayfa sayısı	7
Dergi	Journal of Materials Processing Technology
Hacim	199
Basın numarası	1
DOI'lar	https://doi.org/10.1016/j.jmatprotec.2007.07.041
Yayın durumu	Yayınlandı - 1 Nis 2008

Finansman

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

Finansörler
Consejo Nacional para Investigaciones Científicas y Tecnológicas

Belgeye Erişim

10.1016/j.jmatprotec.2007.07.041

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Synthesis and characterization of machinable calcium phosphate/lanthanum phosphate composites",

abstract = "Hydroxylapatite (HA) and tricalcium phosphate (TCP) composites with lanthanum phosphate were prepared with pressureless air sintering at 500, 700, 900, 1100 and 1300 °C for 2 h. The composites were characterized in terms of phase stability during sintering, microstructural evaluation with XRD, SEM and machinability with simple drilling operation. At sintering temperatures higher than 700 °C, hydroxylapatite and lanthanum phosphate phases reacted and formed Ca8La2(PO4)6O2. On the other hand, tricalcium phosphate and lanthanum phosphate composites were stable up to 1100 °C. However, partial reaction was observed during sintering at 1300 °C. As a result, tricalcium phosphate and lanthanum phosphate composites sintered at 1100 °C showed phase stability insuring weak interface. Thus, these composites fulfilled the requirement for machinability.",

keywords = "Biomaterials, Composites, Hydroxylapatite, Lanthanum phosphate, Machinable ceramics, Tricalcium phosphate",

author = "Celaletdin Ergun",

year = "2008",

month = apr,

day = "1",

doi = "10.1016/j.jmatprotec.2007.07.041",

language = "English",

volume = "199",

pages = "178--184",

journal = "Journal of Materials Processing Technology",

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number = "1",

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TY - JOUR

T1 - Synthesis and characterization of machinable calcium phosphate/lanthanum phosphate composites

AU - Ergun, Celaletdin

PY - 2008/4/1

Y1 - 2008/4/1

N2 - Hydroxylapatite (HA) and tricalcium phosphate (TCP) composites with lanthanum phosphate were prepared with pressureless air sintering at 500, 700, 900, 1100 and 1300 °C for 2 h. The composites were characterized in terms of phase stability during sintering, microstructural evaluation with XRD, SEM and machinability with simple drilling operation. At sintering temperatures higher than 700 °C, hydroxylapatite and lanthanum phosphate phases reacted and formed Ca8La2(PO4)6O2. On the other hand, tricalcium phosphate and lanthanum phosphate composites were stable up to 1100 °C. However, partial reaction was observed during sintering at 1300 °C. As a result, tricalcium phosphate and lanthanum phosphate composites sintered at 1100 °C showed phase stability insuring weak interface. Thus, these composites fulfilled the requirement for machinability.

AB - Hydroxylapatite (HA) and tricalcium phosphate (TCP) composites with lanthanum phosphate were prepared with pressureless air sintering at 500, 700, 900, 1100 and 1300 °C for 2 h. The composites were characterized in terms of phase stability during sintering, microstructural evaluation with XRD, SEM and machinability with simple drilling operation. At sintering temperatures higher than 700 °C, hydroxylapatite and lanthanum phosphate phases reacted and formed Ca8La2(PO4)6O2. On the other hand, tricalcium phosphate and lanthanum phosphate composites were stable up to 1100 °C. However, partial reaction was observed during sintering at 1300 °C. As a result, tricalcium phosphate and lanthanum phosphate composites sintered at 1100 °C showed phase stability insuring weak interface. Thus, these composites fulfilled the requirement for machinability.

KW - Biomaterials

KW - Composites

KW - Hydroxylapatite

KW - Lanthanum phosphate

KW - Machinable ceramics

KW - Tricalcium phosphate

UR - https://www.scopus.com/pages/publications/37549011021

U2 - 10.1016/j.jmatprotec.2007.07.041

DO - 10.1016/j.jmatprotec.2007.07.041

M3 - Article

AN - SCOPUS:37549011021

SN - 0924-0136

VL - 199

SP - 178

EP - 184

JO - Journal of Materials Processing Technology

JF - Journal of Materials Processing Technology

IS - 1

ER -

Synthesis and characterization of machinable calcium phosphate/lanthanum phosphate composites

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap