Fabrication and characterization of a bioactive glass coating on titanium implant alloys

Bloyer, D.R.; Gomez-Vega, Jose M.; Saiz, Eduardo; McNaney, J. M.; Cannon, R. M.; Tomsia, Antoni P.

doi:10.1016/s1359-6454(99)00280-3

Cited by 54 publications

(36 citation statements)

References 10 publications

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“…The observed behavior is similar to that reported for bulk glasses in the SiO 2 -Na 2 O-CaO-P 2 O 5 system (which includes Bioglass Ò ), and other related compositions and for silicate glass coatings on Ti and Ti6Al4V. 11,16,17) The mechanism of HA formation is similar to that described for Bioglass by Hench. 17) The ionic exchange of H þ or H 3 O þ from the SBF for soluble cations K þ , Na þ , Ca 2þ in the glasses leaves a silica-rich hydrogel layer on the glass prior to the formation of HA.…”

Section: Fabrication and Characterization Of Bioactive Glass Coatingssupporting

confidence: 86%

“…In a previous work, glasses in the system SiO 2 -Na 2 O-K 2 O-CaOMgO-P 2 O 5 were successfully used to fabricate bioactive coatings on Ti-based alloys using a conventional enameling technique. [10][11][12] The objective of this study is to produce the glass coatings on Co-Cr alloys (Vitallium Ò ) that exhibit adherence and bioactivity. The coating glass is required to satisfy these properties, which do not crack, delaminate, crystallize excessively or otherwise react.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication and Characterization of Bioactive Glass Coatings on Co-Cr Implant Alloys

et al. 2004

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ASilicate glass coatings on Vitallium Ò , a Co-Cr alloy were prepared using a simple enameling technique. The composition of the glasses in the SiO 2 -Na 2 O-K 2 O-MgO-CaO-P 2 O 5 system has been tailored to match the thermal expansion of the alloys. The optimum glass composition and firing conditions (temperature and time) needed to fabricate homogeneous coatings with good adhesion to the alloy were determined. The final coating thickness ranged between 40 and 60 mm. Coatings fired under the optimum conditions do not delaminate during indentation tests of adhesion. Excellent adhesion to the alloy has been achieved through the formation of 150 nm thick interfacial layers (CrOx). The silicate glass can be successfully coated to Co-Cr alloy and formed hydroxyapatite on the glass surface when immersed in a simulated body fluid (SBF) for 30 days.

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Section: Fabrication and Characterization Of Bioactive Glass Coatingssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Bioactive Glass Coatings on Co-Cr Implant Alloys

et al. 2004

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“…For example, a number of silicate-based glass coatings on Ti and Ti6Al4V alloy have been prepared by Bloyer et al and Pazo et al [30][31][32]. The compositions of the glasses are given in Table 1.…”

Section: Coatings On Ti For Biomedical Applicationsmentioning

confidence: 99%

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

et al. 2011

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There has, in recent years, been a major revival of interest in glass-and glass-ceramic-to-metal seals and coatings for new applications. Experience dictates that many factors need to be taken into consideration in the successful design and manufacture of high-quality seals, particularly if an adequate component lifetime is to be achieved. For example, during their preparation, undesirable reactions may occur between diffusing metal species and glass constituents, and these can lead to the formation of highly localized internal stresses, which can initiate failure of a seal either during manufacture or, more seriously, whilst in service due to the influence of static fatigue. In the case of high-temperature systems, reactions under hostile operating conditions also need to be taken into consideration. In this review, the factors learnt from past experience that influence the formation and lifetime behaviour of glass and glass-ceramic/metal systems are briefly introduced, and their relevance to the newer applications including solid oxide fuel cell sealants and coatings on titanium for biomedical applications is discussed.

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“…We report here the stress-corrosion crack growth (SCCG) behavior of these bulk glasses under static and cyclic loading. These studies form part of a comprehensive analysis of the glasses and coatings fracture, wear and fatigue behavior [15][16][17][24][25][26]. The final goal is to gather the basic information needed to develop lifetime prediction analysis of specific devices that will allow the design of coatings with optimum mechanical stability for a given application.…”

Section: Introductionmentioning

confidence: 99%

Stress–corrosion crack growth of Si–Na–K–Mg–Ca–P–O bioactive glasses in simulated human physiological environment

et al. 2007

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This paper describes research on the stress-corrosion crack growth (SCCG) behavior of a new series of bioactive glasses designed to fabricate coatings on Ti and Co-Cr-based implant alloys. These glasses should provide improved implant fixation between implant and exhibit good mechanical stability in vivo. It is then important to develop an understanding of the mechanisms that control environmentally-assisted crack growth in this new family of glasses and its effect on their reliability. Several compositions have been tested in both static and cyclic loading in simulated body fluid. These show only small dependences of stress-corrosion crack growth behavior on the composition. Traditional SCCG mechanisms for silicate glasses appear to be operative for the new bioactive glasses studied here. At higher velocities, hydrodynamic effects reduce growth rates under conditions that would rarely pertain for small natural flaws in devices.

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Fabrication and characterization of a bioactive glass coating on titanium implant alloys

Cited by 54 publications

References 10 publications

Fabrication and Characterization of Bioactive Glass Coatings on Co-Cr Implant Alloys

Fabrication and Characterization of Bioactive Glass Coatings on Co-Cr Implant Alloys

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

Stress–corrosion crack growth of Si–Na–K–Mg–Ca–P–O bioactive glasses in simulated human physiological environment

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