Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method

J. H. Seo, H. S. Ryu, K. S. Hong, H. Kim, D. J. Kim, Jae Hyup Lee, D. H. Lee, Choon Ki Lee

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Porous bioceramics as bone filler have been fabricated by various methods. In this study, the method that porous CaO-SiO2-B2O3 bioactive glass-ceramics can be prepared by self-foaming was introduced, and the mechanism for this self-foaming was investigated. Considering weight loss and thermal expansion, B2O3 volatilization is the reason for this self-foaming. As the sintering temperature increased, pore size and porosity(66-90%) was increased and interconnection between pores collapsed. Poor interconnetion can be improved by HCl treatment or soaking in SBF. The skeleton consisted of 5μm needle-shaped grains. The compressive strength of this porous glass-ceramics was 15.93±0.49 MPa. and this value was higher that that (0.5-2MPa) of other porous bioceramics fabricated by various methods. The stress-strain curves showed that this porous ceramics was elastic and flexible like bone. In-vitro test showed this porous glass-ceramics were bioactive and biodegradable. So, this porous glass-ceramic can be believed to be osteoconductive and have good mechanical property.

Original languageEnglish
Pages (from-to)273-276
Number of pages4
JournalKey Engineering Materials
Volume240-242
StatePublished - 21 Apr 2003
EventProceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine - Sydney, NSW, Australia
Duration: 4 Dec 20028 Dec 2002

Fingerprint

Glass ceramics
Bioceramics
Fabrication
Bone
Bioactive glass
Stress-strain curves
Vaporization
Needles
Compressive strength
Pore size
Thermal expansion
Fillers
Sintering
Porosity
Mechanical properties
boron oxide
Temperature

Keywords

  • Bioceramics
  • Filler
  • Foaming
  • Glass-ceramic
  • Osteoconductive
  • Porous
  • SBF

Cite this

Seo, J. H., Ryu, H. S., Hong, K. S., Kim, H., Kim, D. J., Lee, J. H., ... Lee, C. K. (2003). Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method. Key Engineering Materials, 240-242, 273-276.
Seo, J. H. ; Ryu, H. S. ; Hong, K. S. ; Kim, H. ; Kim, D. J. ; Lee, Jae Hyup ; Lee, D. H. ; Lee, Choon Ki. / Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method. In: Key Engineering Materials. 2003 ; Vol. 240-242. pp. 273-276.
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title = "Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method",
abstract = "Porous bioceramics as bone filler have been fabricated by various methods. In this study, the method that porous CaO-SiO2-B2O3 bioactive glass-ceramics can be prepared by self-foaming was introduced, and the mechanism for this self-foaming was investigated. Considering weight loss and thermal expansion, B2O3 volatilization is the reason for this self-foaming. As the sintering temperature increased, pore size and porosity(66-90{\%}) was increased and interconnection between pores collapsed. Poor interconnetion can be improved by HCl treatment or soaking in SBF. The skeleton consisted of 5μm needle-shaped grains. The compressive strength of this porous glass-ceramics was 15.93±0.49 MPa. and this value was higher that that (0.5-2MPa) of other porous bioceramics fabricated by various methods. The stress-strain curves showed that this porous ceramics was elastic and flexible like bone. In-vitro test showed this porous glass-ceramics were bioactive and biodegradable. So, this porous glass-ceramic can be believed to be osteoconductive and have good mechanical property.",
keywords = "Bioceramics, Filler, Foaming, Glass-ceramic, Osteoconductive, Porous, SBF",
author = "Seo, {J. H.} and Ryu, {H. S.} and Hong, {K. S.} and H. Kim and Kim, {D. J.} and Lee, {Jae Hyup} and Lee, {D. H.} and Lee, {Choon Ki}",
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Seo, JH, Ryu, HS, Hong, KS, Kim, H, Kim, DJ, Lee, JH, Lee, DH & Lee, CK 2003, 'Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method', Key Engineering Materials, vol. 240-242, pp. 273-276.

Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method. / Seo, J. H.; Ryu, H. S.; Hong, K. S.; Kim, H.; Kim, D. J.; Lee, Jae Hyup; Lee, D. H.; Lee, Choon Ki.

In: Key Engineering Materials, Vol. 240-242, 21.04.2003, p. 273-276.

Research output: Contribution to journalConference articleResearchpeer-review

TY - JOUR

T1 - Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method

AU - Seo, J. H.

AU - Ryu, H. S.

AU - Hong, K. S.

AU - Kim, H.

AU - Kim, D. J.

AU - Lee, Jae Hyup

AU - Lee, D. H.

AU - Lee, Choon Ki

PY - 2003/4/21

Y1 - 2003/4/21

N2 - Porous bioceramics as bone filler have been fabricated by various methods. In this study, the method that porous CaO-SiO2-B2O3 bioactive glass-ceramics can be prepared by self-foaming was introduced, and the mechanism for this self-foaming was investigated. Considering weight loss and thermal expansion, B2O3 volatilization is the reason for this self-foaming. As the sintering temperature increased, pore size and porosity(66-90%) was increased and interconnection between pores collapsed. Poor interconnetion can be improved by HCl treatment or soaking in SBF. The skeleton consisted of 5μm needle-shaped grains. The compressive strength of this porous glass-ceramics was 15.93±0.49 MPa. and this value was higher that that (0.5-2MPa) of other porous bioceramics fabricated by various methods. The stress-strain curves showed that this porous ceramics was elastic and flexible like bone. In-vitro test showed this porous glass-ceramics were bioactive and biodegradable. So, this porous glass-ceramic can be believed to be osteoconductive and have good mechanical property.

AB - Porous bioceramics as bone filler have been fabricated by various methods. In this study, the method that porous CaO-SiO2-B2O3 bioactive glass-ceramics can be prepared by self-foaming was introduced, and the mechanism for this self-foaming was investigated. Considering weight loss and thermal expansion, B2O3 volatilization is the reason for this self-foaming. As the sintering temperature increased, pore size and porosity(66-90%) was increased and interconnection between pores collapsed. Poor interconnetion can be improved by HCl treatment or soaking in SBF. The skeleton consisted of 5μm needle-shaped grains. The compressive strength of this porous glass-ceramics was 15.93±0.49 MPa. and this value was higher that that (0.5-2MPa) of other porous bioceramics fabricated by various methods. The stress-strain curves showed that this porous ceramics was elastic and flexible like bone. In-vitro test showed this porous glass-ceramics were bioactive and biodegradable. So, this porous glass-ceramic can be believed to be osteoconductive and have good mechanical property.

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KW - Osteoconductive

KW - Porous

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M3 - Conference article

VL - 240-242

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JO - Key Engineering Materials

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SN - 1013-9826

ER -

Seo JH, Ryu HS, Hong KS, Kim H, Kim DJ, Lee JH et al. Fabrication of CaO-SiO2-B2O3 porous glass-ceramics by self-foaming method. Key Engineering Materials. 2003 Apr 21;240-242:273-276.