Characteristics of plasma-sprayed bioactive glass coatings on Ti-6A1-4V alloy: an in vitro study

Lee, T.M.; Chang, Edward F.; Wang, B.C.; Yang, Chuanfang

doi:10.1016/0257-8972(95)02463-8

Cited by 46 publications

(27 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to literature, for angles below 30º powder has good flowability, angles comprising 30-45º give some cohesiveness, angles between 45-55º lead to cohesiveness and for angles higher than 55º powder displays remarkable cohesiveness [22,23]. The correlation of the data obtained from both 9 flowability measurement tests was plotted in figure 4c. As observed there are three different flowability zones in function of the HR and angle of repose.…”

Section: Coating Deposition and Characterisationmentioning

confidence: 99%

See 1 more Smart Citation

Effect of particle size on processing of bioactive glass powder for atmospheric plasma spraying

Cañas

Vicent

Bannier

et al. 2016

Journal of the European Ceramic Society

View full text Add to dashboard Cite

The work addresses the effect of the particle size of a bioactive glass feedstock on the processing and microstructure of the resulting coatings obtained by atmospheric plasma spraying (APS). It was observed that the reduction of particle size negatively affects the flowability of the powder. In addition the thermal behaviour (weight losses, glass transitions, crystallisations, etc) also depended on the particle size of the glass powder.No coating was obtained with the coarser fractions (higher than 200 µm) due to their low melting degree in the plasma. For the intermediate fractions (200 to 63 µm) coatings were obtained but insufficient particle melting was produced. On the contrary, the finest fraction (<63 µm) needed a fluidiser which enabled the samples to be sprayed.

show abstract

Section: Coating Deposition and Characterisationmentioning

confidence: 99%

“…Most of these papers also include the characterisation of the resulting coatings [7][8][9][10][11][12]. However, very few papers have dealt with the effect of the particle size of the bioactive glass feedstock on the processing and final microstructure of the obtained coatings.…”

mentioning

confidence: 99%

Effect of particle size on processing of bioactive glass powder for atmospheric plasma spraying

Cañas

Vicent

Bannier

et al. 2016

Journal of the European Ceramic Society

View full text Add to dashboard Cite

show abstract

“…Most of these papers also include the characterisation of the resulting coatings [9][10][11][12][13][14]. However, very limited numbers of papers have dealt with obtaining BG coatings by SPS technique.…”

Section: Introductionmentioning

confidence: 99%

Bioactive glass coatings by suspension plasma spraying from glycolether-based solvent feedstock

Cañas

Vicent

Orts

et al. 2017

Surface and Coatings Technology

View full text Add to dashboard Cite

Bioactive glasses are emerging as a substitute of hydroxyapatite in the development of bioactive coatings for biomedical applications. The deposition of these coatings is carried out by a wide range of methods, being atmospheric plasma spraying the most employed technique. However, the research on the deposition of these coatings from suspension feedstocks by thermal spraying is still incipient, therefore more research about this topic is needed.Thus, a bioactive glass suspension, composed of fine glass particles, was prepared and stabilised through rheological and sedimentation tests to be used as a feedstock in plasma spraying. The solvent used in the suspension preparation was dipropylene glycol methyl ether in order to develop a new type of bioactive suspension. Consequently, as a new type of solvent was used, its effect on the plasma torch properties was determined. On other hand, the rheological behaviour of the suspension feedstock was assessed by means of a simple viscosity model. This suspension was deposited onto metallic substrates by plasma spraying, employing several spraying distances. All coatings displayed a suitable adherence and similar thickness.However, the microstructure of the obtained coatings is highly affected by the spraying distance as it can be seen in coatings surface and cross-section field emission gun environmental scanning electron microscopy examination. Thus, a relation between the spraying distance and coatings microstructure was found. On the other hand, X-ray diffraction confirmed the amorphous nature of the obtained coatings.

show abstract

“…Bioactive glasses and glass-ceramics, being known to promote a strong chemical bond with surrounding bone and to encourage positive interactions between cells and implanted device, are ideal biomaterials for the fabrication of coatings [5]. Over the years, several methods have been proposed to coat a substrate with a glass or glass-ceramic layer, such as enamelling [6], plasma spraying [7], spin coating [8], radio-frequency magnetron sputtering [9], electrophoretic deposition [10,11] and airbrush spraying [12]. In spite of their potentiality, however, bioactive glass coatings are still rarely applied, mainly due to some concerns about their long-term durability and fate in vivo.…”

Section: Introductionmentioning

confidence: 99%

Trabecular coating on curved alumina substrates using a novel bioactive and strong glass-ceramic

Baino¹,

Vitale-Brovarone²

2015

Biomedical Glasses

View full text Add to dashboard Cite

Abstract:In the last few years, optimal fixation of orthopaedic implants evolved to preserve host bone and enhance tissue integration by surface modifications, including the use of coatings with bioactive ceramics. In this work, we fabricated a novel bone-like porous bioactive glass-ceramic coating on curved alumina substrates; good joining between the two components was possible due to the interposition of a glass-derived dense interlayer. The mechanical properties of the porous glass-ceramic, which mimics the 3-D pore architecture of cancellous bone, are adequate for load-bearing applications (compressive strength of 19 MPa and fracture energy around 6.5×10 −4 J mm −3 , with a total porosity of 62 vol.%). In vitro bioactive behaviour was investigated by testing the samples in simulated body fluid and by evaluating the apatite formation on the surface and pore struts of the trabecular coating, which is a key precondition for in vivo osteointegration. The concepts disclosed in the present study could find interesting application in the context of orthopaedic implants, with particular reference to full-ceramic acetabular cups for hip joint prosthesis.

show abstract

Characteristics of plasma-sprayed bioactive glass coatings on Ti-6A1-4V alloy: an in vitro study

Cited by 46 publications

References 19 publications

Effect of particle size on processing of bioactive glass powder for atmospheric plasma spraying

Effect of particle size on processing of bioactive glass powder for atmospheric plasma spraying

Bioactive glass coatings by suspension plasma spraying from glycolether-based solvent feedstock

Trabecular coating on curved alumina substrates using a novel bioactive and strong glass-ceramic

Contact Info

Product

Resources

About