Effect of annealing upon the structure and adhesion properties of sputtered bio-glass/titanium coatings

Stan, George E.; Morosanu, C.; Marcov, D.A.; Pasuk, Iuliana; Miculescu, Florin; Reumont, G.

doi:10.1016/j.apsusc.2009.06.117

Cited by 42 publications

(40 citation statements)

References 40 publications

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“…The RF-MS cathode target (110 mm diameter, 3 mm thick) was manufactured by roomtemperature (RT) pressing a low sodium containing BG powder (wt.%: SiO 2 -46.06, CaO-28.66, Na 2 O-4.53, P 2 O 5 -6.22, MgO-8.83, and CaF 2 -5.70) in a titanium holder as described in earlier studies [46,52,53]. The BG has suitable thermal features (low CTE (10.44x10 −6 ºC −1 ), T g =600 ºC, [37]), relatively low degradation rate and proven in vivo osseointegration efficiency as demonstrated using Chinchilla rabbits as animal model [54].…”

Section: Methodsmentioning

confidence: 99%

Superior biofunctionality of dental implant fixtures uniformly coated with durable bioglass films by magnetron sputtering

Popa¹,

Stan

Enculescu

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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Section: Methodsmentioning

confidence: 99%

Superior biofunctionality of dental implant fixtures uniformly coated with durable bioglass films by magnetron sputtering

Popa¹,

Stan

Enculescu

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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“…More recently Stan et al investigated the effects of processing parameters from bioactive silicate glass targets, including bioglass® 45S5. He was unable to obtain a stoichiometric 45S5 composition due to preferential sputtering, however he found that the composition of deposited thin films, could be manipulated by varying deposition pressure and atmosphere [25][26][27][28]. Berbecaru et al deposited a 0.5 μm thick bioactive glass coating (SiO 2 -40.5 CaO-32 P 2 O 5 -1.5 Na 2 O-9 MgO-17 mol%) on silicon substrates which were subsequently immersed for 30 days in SBF, and appeared to follow the stages of Hench's bioactivity theory, beginning with the solubility and degradation of the silicon network, followed by the formation of a calcium-phosphate apatite layer at the surface.…”

Section: Introductionmentioning

confidence: 99%

Preferential sputtering in phosphate glass systems for the processing of bioactive coatings

et al. 2015

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“…In addition a number of bioactive silicate glass compositions have been sputtered, including the composition deposited by Stan and Berbecaru et al SiO2-40.5 CaO-32 P2O5-1.5 Na2O-9 MgO-17 mol% which showed the formation of apatite in vitro following submersion in Simulated Body Fluid (SBF) [20][21][22][23][24][25] . The controlled natural formation of HA from the dissolution of bioactive glass may allow for customised rates of HA and ion release rates necessary for specific bone defects.…”

Section: Introductionmentioning

confidence: 99%

Degradation and Characterization of Resorbable Phosphate-Based Glass Thin-Film Coatings Applied by Radio-Frequency Magnetron Sputtering

Stuart

Gimeno-Fabra

Segal

et al. 2015

ACS Appl. Mater. Interfaces

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(2015) Degradation and characterization of resorbable phosphate-based glass thin-film coatings applied by radio-frequency magnetron sputtering. ACS Applied Materials and Interfaces, 7 (49). pp. 27362-27372. ISSN 1944-8252 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/34759/1/Pre-Proof-Degradation%20and%20Characterisation %20of%20Resorbable%20Thin%20Films%20%28002%29.pdf Copyright and reuse:The Nottingham ePrints service makes this work by researchers of the University of Nottingham available open access under the following conditions. This article is made available under the University of Nottingham End User licence and may be reused according to the conditions of the licence. For more details see: http://eprints.nottingham.ac.uk/end_user_agreement.pdf A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. respectively. This factor led to highly soluble coatings, exhibiting a t 1/2 degradation dependence in the first 2 hours in distilled water, followed by a more characteristic linear profile as the subsequent layers were less soluble. Hydration and degradation was observed to preferentially occur, forming voids characteristic of pitting corrosion which was confirmed by use of a Focused Ion Beam. Coating degradation in PBS precipitated a (PO3) -metaphosphate, X-Ray amorphous layer, which remained adherent to the substrate and seemingly formed a protective diffusion barrier which inhibited further coating degradation.The implications are that whilst compositionally similar, sputter deposited coatings and melt quenched glasses are structurally dissimilar, most notably, with regards to the surface layer.This factor has been attributed to surface etching of the as deposited coating layer during 2 deposition and variation in the thermal history between the processes of magnetron sputtering and melt quenching.

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Effect of annealing upon the structure and adhesion properties of sputtered bio-glass/titanium coatings

Cited by 42 publications

References 40 publications

Superior biofunctionality of dental implant fixtures uniformly coated with durable bioglass films by magnetron sputtering

Superior biofunctionality of dental implant fixtures uniformly coated with durable bioglass films by magnetron sputtering

Preferential sputtering in phosphate glass systems for the processing of bioactive coatings

Degradation and Characterization of Resorbable Phosphate-Based Glass Thin-Film Coatings Applied by Radio-Frequency Magnetron Sputtering

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