Characterization of CaO-SiO2-B2O3 glass-ceramics and effect of composition on bioactivity

H. S. Ryu; J. H. Seo; H. Kim; K. S. Hong; H. J. Park; D. U. Kim; J. H. Lee; D. H. Lee; B. S. Chang; C. K. Lee

Characterization of CaO-SiO₂-B₂O₃ glass-ceramics and effect of composition on bioactivity

H. S. Ryu, J. H. Seo, H. Kim, K. S. Hong, H. J. Park, D. U. Kim, J. H. Lee, D. H. Lee, B. S. Chang, C. K. Lee

Research output: Contribution to journal › Conference article › peer-review

Abstract

The sintering behavior, mechanical properties and bioactivity of (50-x/2)CaO·SiO₂-xB₂O₃ (4.2≤x≤17.2) glass-ceramics was investigated. The glass-ceramics consisted of three phases, monoclinic-wollastonite, calcium borate and an amorphous borosilicate matrix. Some glass-ceramics sintered at 750-830°C for 2h, has produced a nearly pore-free microstructure. The mechanical strength of the dense specimens was higher than that of other bioactive ceramics, compressive strength, 2813 MPa and fracture toughness, 3.12 MPa·m^1/2. Bioactivity of the glass-ceramics depends on the amount of CaB₂O₄4 and borosilicate glass matrix. The glass-ceramic with more CaB₂O₄ and borosilicate glass exhibited better bioactivity. It might be likely that more soluble CaB₂O₄ increases the supersaturation of Ca ions in the SBF solution and water-corrosive borosilicate glass forms Si-OH groups that act as nucleation sites for the hydroxycarbonate apatite (HCA) layer.

Original language	English
Pages (from-to)	261-264
Number of pages	4
Journal	Key Engineering Materials
Volume	240-242
State	Published - 2003
Event	Proceedings 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 2002 → 8 Dec 2002

Keywords

CaO-SiO-BO glass-ceramics
Mechanical strength
SBF
Sintering
Wollastonite

Cite this

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title = "Characterization of CaO-SiO2-B2O3 glass-ceramics and effect of composition on bioactivity",

abstract = "The sintering behavior, mechanical properties and bioactivity of (50-x/2)CaO·SiO2-xB2O3 (4.2≤x≤17.2) glass-ceramics was investigated. The glass-ceramics consisted of three phases, monoclinic-wollastonite, calcium borate and an amorphous borosilicate matrix. Some glass-ceramics sintered at 750-830°C for 2h, has produced a nearly pore-free microstructure. The mechanical strength of the dense specimens was higher than that of other bioactive ceramics, compressive strength, 2813 MPa and fracture toughness, 3.12 MPa·m1/2. Bioactivity of the glass-ceramics depends on the amount of CaB2O44 and borosilicate glass matrix. The glass-ceramic with more CaB2O4 and borosilicate glass exhibited better bioactivity. It might be likely that more soluble CaB2O4 increases the supersaturation of Ca ions in the SBF solution and water-corrosive borosilicate glass forms Si-OH groups that act as nucleation sites for the hydroxycarbonate apatite (HCA) layer.",

keywords = "CaO-SiO-BO glass-ceramics, Mechanical strength, SBF, Sintering, Wollastonite",

author = "Ryu, {H. S.} and Seo, {J. H.} and H. Kim and Hong, {K. S.} and Park, {H. J.} and Kim, {D. U.} and Lee, {J. H.} and Lee, {D. H.} and Chang, {B. S.} and Lee, {C. K.}",

year = "2003",

language = "English",

volume = "240-242",

pages = "261--264",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications Ltd",

note = "Proceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine ; Conference date: 04-12-2002 Through 08-12-2002",

}

TY - JOUR

T1 - Characterization of CaO-SiO2-B2O3 glass-ceramics and effect of composition on bioactivity

AU - Ryu, H. S.

AU - Seo, J. H.

AU - Kim, H.

AU - Hong, K. S.

AU - Park, H. J.

AU - Kim, D. U.

AU - Lee, J. H.

AU - Lee, D. H.

AU - Chang, B. S.

AU - Lee, C. K.

PY - 2003

Y1 - 2003

N2 - The sintering behavior, mechanical properties and bioactivity of (50-x/2)CaO·SiO2-xB2O3 (4.2≤x≤17.2) glass-ceramics was investigated. The glass-ceramics consisted of three phases, monoclinic-wollastonite, calcium borate and an amorphous borosilicate matrix. Some glass-ceramics sintered at 750-830°C for 2h, has produced a nearly pore-free microstructure. The mechanical strength of the dense specimens was higher than that of other bioactive ceramics, compressive strength, 2813 MPa and fracture toughness, 3.12 MPa·m1/2. Bioactivity of the glass-ceramics depends on the amount of CaB2O44 and borosilicate glass matrix. The glass-ceramic with more CaB2O4 and borosilicate glass exhibited better bioactivity. It might be likely that more soluble CaB2O4 increases the supersaturation of Ca ions in the SBF solution and water-corrosive borosilicate glass forms Si-OH groups that act as nucleation sites for the hydroxycarbonate apatite (HCA) layer.

AB - The sintering behavior, mechanical properties and bioactivity of (50-x/2)CaO·SiO2-xB2O3 (4.2≤x≤17.2) glass-ceramics was investigated. The glass-ceramics consisted of three phases, monoclinic-wollastonite, calcium borate and an amorphous borosilicate matrix. Some glass-ceramics sintered at 750-830°C for 2h, has produced a nearly pore-free microstructure. The mechanical strength of the dense specimens was higher than that of other bioactive ceramics, compressive strength, 2813 MPa and fracture toughness, 3.12 MPa·m1/2. Bioactivity of the glass-ceramics depends on the amount of CaB2O44 and borosilicate glass matrix. The glass-ceramic with more CaB2O4 and borosilicate glass exhibited better bioactivity. It might be likely that more soluble CaB2O4 increases the supersaturation of Ca ions in the SBF solution and water-corrosive borosilicate glass forms Si-OH groups that act as nucleation sites for the hydroxycarbonate apatite (HCA) layer.

KW - CaO-SiO-BO glass-ceramics

KW - Mechanical strength

KW - SBF

KW - Sintering

KW - Wollastonite

UR - http://www.scopus.com/inward/record.url?scp=0037246841&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0037246841

SN - 1013-9826

VL - 240-242

SP - 261

EP - 264

JO - Key Engineering Materials

JF - Key Engineering Materials

T2 - Proceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine

Y2 - 4 December 2002 through 8 December 2002

ER -

Characterization of CaO-SiO₂-B₂O₃ glass-ceramics and effect of composition on bioactivity

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Keywords

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