β -Rhenanite ( β -NaCaPO4) as Weak Interphase for Hydroxyapatite Ceramics

Wojciech Suchanek; Masatomo Yashima; Masato Kakihana; Masahiro Yoshimura

doi:10.1016/S0955-2219(98)00131-9

β -Rhenanite ( β -NaCaPO₄) as Weak Interphase for Hydroxyapatite Ceramics

Wojciech Suchanek, Masatomo Yashima, Masato Kakihana, Masahiro Yoshimura

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

33 Citations (Scopus)

Abstract

Hydroxyapatite/bioactive glass laminate has been fabricated by hot pressing of stacked hydroxyapatite and bioactive glass powders at 1000°C (30min, 30MPa). This processing resulted in the formation of β-NaCaPO₄ (β-rhenanite) interphase layers between each hydroxyapatite and bioactive glass layer. The β-NaCaPO₄ interphase provided an easy path for debonding and crack deflection in the laminate demonstrating that this material can work as weak interphase in hydroxyapatite ceramics. The β-NaCaPO₄ exhibits also high biocompatibility and bioactivity. Moreover, it significantly enhances sinterability of hydroxyapatite at 1000°C without formation of any undesired phases, such as tricalcium phosphate or CaO. Our results show that various microstructurally controlled hydroxyapatite-based composites with potentially improved reliability and high biocompatibility can be prepared in the hydroxyapatite/β-NaCaPO₄ or hydroxyapatite/bioactive glass systems.

Original language	English
Pages (from-to)	1923-1929
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	18
Issue number	13
DOIs	https://doi.org/10.1016/S0955-2219(98)00131-9
Publication status	Published - 1998 Nov
Externally published	Yes

Keywords

Bioactive glass
Hydroxyapatite* β -rhenanite
Laminates
Weak interphase

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/S0955-2219(98)00131-9

Cite this

@article{de7e4ecf41b045e38b5cebb87f3d8692,

title = "β -Rhenanite ( β -NaCaPO4) as Weak Interphase for Hydroxyapatite Ceramics",

abstract = "Hydroxyapatite/bioactive glass laminate has been fabricated by hot pressing of stacked hydroxyapatite and bioactive glass powders at 1000°C (30min, 30MPa). This processing resulted in the formation of β-NaCaPO4 (β-rhenanite) interphase layers between each hydroxyapatite and bioactive glass layer. The β-NaCaPO4 interphase provided an easy path for debonding and crack deflection in the laminate demonstrating that this material can work as weak interphase in hydroxyapatite ceramics. The β-NaCaPO4 exhibits also high biocompatibility and bioactivity. Moreover, it significantly enhances sinterability of hydroxyapatite at 1000°C without formation of any undesired phases, such as tricalcium phosphate or CaO. Our results show that various microstructurally controlled hydroxyapatite-based composites with potentially improved reliability and high biocompatibility can be prepared in the hydroxyapatite/β-NaCaPO4 or hydroxyapatite/bioactive glass systems.",

keywords = "Bioactive glass, Hydroxyapatite* β -rhenanite, Laminates, Weak interphase",

author = "Wojciech Suchanek and Masatomo Yashima and Masato Kakihana and Masahiro Yoshimura",

note = "Funding Information: This research was supported by the `Research for the Future' Program No. 96R06901 of the Japanese Society for the Promotion of Science (JSPS). We are very grateful to Mr. H. Ishizawa and Mr. M. Ogino (Nikon Co. Ltd, Sagamihara, Japan) for providing the bioactive glass powder, Professor E. Yasuda for granting us permission to use his hot press, Mr. T. Akatsu for experimental assistance, Professor Z. Nakagawa, Dr. N. Enomoto, and Mr. B. Sakurai (all Tokyo Institute of Technology, Yokohama, Japan) for help during SEM investigations. ",

year = "1998",

month = nov,

doi = "10.1016/S0955-2219(98)00131-9",

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journal = "Journal of the European Ceramic Society",

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AU - Suchanek, Wojciech

AU - Yashima, Masatomo

AU - Kakihana, Masato

AU - Yoshimura, Masahiro

N1 - Funding Information: This research was supported by the `Research for the Future' Program No. 96R06901 of the Japanese Society for the Promotion of Science (JSPS). We are very grateful to Mr. H. Ishizawa and Mr. M. Ogino (Nikon Co. Ltd, Sagamihara, Japan) for providing the bioactive glass powder, Professor E. Yasuda for granting us permission to use his hot press, Mr. T. Akatsu for experimental assistance, Professor Z. Nakagawa, Dr. N. Enomoto, and Mr. B. Sakurai (all Tokyo Institute of Technology, Yokohama, Japan) for help during SEM investigations.

PY - 1998/11

Y1 - 1998/11

N2 - Hydroxyapatite/bioactive glass laminate has been fabricated by hot pressing of stacked hydroxyapatite and bioactive glass powders at 1000°C (30min, 30MPa). This processing resulted in the formation of β-NaCaPO4 (β-rhenanite) interphase layers between each hydroxyapatite and bioactive glass layer. The β-NaCaPO4 interphase provided an easy path for debonding and crack deflection in the laminate demonstrating that this material can work as weak interphase in hydroxyapatite ceramics. The β-NaCaPO4 exhibits also high biocompatibility and bioactivity. Moreover, it significantly enhances sinterability of hydroxyapatite at 1000°C without formation of any undesired phases, such as tricalcium phosphate or CaO. Our results show that various microstructurally controlled hydroxyapatite-based composites with potentially improved reliability and high biocompatibility can be prepared in the hydroxyapatite/β-NaCaPO4 or hydroxyapatite/bioactive glass systems.

AB - Hydroxyapatite/bioactive glass laminate has been fabricated by hot pressing of stacked hydroxyapatite and bioactive glass powders at 1000°C (30min, 30MPa). This processing resulted in the formation of β-NaCaPO4 (β-rhenanite) interphase layers between each hydroxyapatite and bioactive glass layer. The β-NaCaPO4 interphase provided an easy path for debonding and crack deflection in the laminate demonstrating that this material can work as weak interphase in hydroxyapatite ceramics. The β-NaCaPO4 exhibits also high biocompatibility and bioactivity. Moreover, it significantly enhances sinterability of hydroxyapatite at 1000°C without formation of any undesired phases, such as tricalcium phosphate or CaO. Our results show that various microstructurally controlled hydroxyapatite-based composites with potentially improved reliability and high biocompatibility can be prepared in the hydroxyapatite/β-NaCaPO4 or hydroxyapatite/bioactive glass systems.

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KW - Laminates

KW - Weak interphase

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