Plasma-electrolytic oxidation of titanium in Zr(SO4)2-containing electrolyte

Руднев, В. С.; Kilin, K. N.; Малышев, Юрий Валентинович; Yarovaya, T. P.; Недозоров, П. М.; Popovich, Anatoly

doi:10.1134/s2070205110060134

Cited by 17 publications

(8 citation statements)

References 15 publications

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“…Measurements of the mean elemental composition of nonporous parts of the coatings on areas of 2 × 2 µm 2 showed that the parts contain (at %): 15.2 Zr, 17.1 Ti, and 67.7 O, which is close to the results obtained preciously in [7,8,10]. The composition of whickers determined at spot 1 (at %: 12.6 Zr, 20.2 Ti, and 67.2 O) and spot 2 (at %: 37.3 Zr and 62.7 Ti) sub stantially differ (Fig.…”

Section: Resultssupporting

confidence: 73%

“…Estimates carried out in [7][8][9][10] showed that the main characteristics of the coatings of both kinds (ele mental composition and thickness) do not change upon repeated cycles of heating to 500-700°С and cooling to 20°С in air.…”

Section: ) 2 (I) Andmentioning

confidence: 99%

“…Zr(SO 4 ) 2 + Ce 2 (SO 4 ) 3 (II) electrolytes, respectively [7][8][9][10]. Type I coatings with a thickness h ∼ 6 µm were formed in 10 min at an effective current density of 8 A/dm 2 .…”

Section: ) 2 (I) Andmentioning

confidence: 99%

“…Having a peculiar combination of properties, ceramics based on zirconium dioxide are applied in different fields of power industry, metallurgy, the coal and chemical industry, aerospace technology, elec tronics, and medicine [5,6]. We have recently showed [7][8][9][10] that ZrO 2 + TiO 2 (I) and ZrO 2 + CeO x + TiO 2 (II) coatings with a thickness of several to 200 µm can be produced on a titanium substrate by plasma elec trolytic oxidation (PEO). The essence of the method is oxidation of valve metals in electrolytes at voltages that cause spark and arc electric discharges on the metal surfaces.…”

Section: Introductionmentioning

confidence: 99%

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Composition, surface structure, and thermal behavior of ZrO2 + TiO2/Ti and ZrO2 + CeO x + TiO2 composites formed by plasma-electrolytic oxidation

Руднев

Малышев

Lukiyanchuk

et al. 2012

Prot Met Phys Chem Surf

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Specific surface structures of ZrO 2 + TiO 2 (I) and ZrO 2 + CeO x + TiO 2 (II) coatings on titanium before and after annealing at 850°C for 24 h in air are studied. Whiskers are found on the surface of type I coatings before annealing, and perfectly edged crystals composed of TiO 2 and ZrO 2 oxides are found upon annealing. Pores in both coatings have a multilevel structure. In the case of type I coatings, orifices of pores are covered with titanium. In type II coatings, pore orifices contain titanium, zirconium, and oxygen. Oxy gen deficiency implies that titanium and zirconium are present in pore orifices in metallic state. In type II coatings, the surface distribution of cerium is heterogeneous. Mechanical treatment of the annealed coatings causes their exfoliation from the substrate metal. In the case of both coatings, the exfoliating surfaces are composed of TiO 2 blocks containing excess oxygen.

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Section: Resultssupporting

confidence: 73%

Section: ) 2 (I) Andmentioning

confidence: 99%

Section: ) 2 (I) Andmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Composition, surface structure, and thermal behavior of ZrO2 + TiO2/Ti and ZrO2 + CeO x + TiO2 composites formed by plasma-electrolytic oxidation

Руднев

Малышев

Lukiyanchuk

et al. 2012

Prot Met Phys Chem Surf

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“…Due to incorporation of zirconium into the oxide layer also Zr(SO 4 ) 2 $4H 2 O solution as electrolyte was used. 118 Investigations on the surface modication of the Ti-13Nb-13Zr alloy by anodic oxidation in a solution containing K 2 SiO 3 and KOH at the voltages of 100, 200 and 400 V are presented in ref. 119.…”

Section: Chemical and Phase Composition Of Oxide Layers After Peomentioning

confidence: 99%

Application of plasma electrolytic oxidation to bioactive surface formation on titanium and its alloys

2013

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In this work, a review of the literature concerning the surface modification of implants composed of titanium and titanium alloys by plasma electrochemical oxidation (PEO), also known as micro-arc oxidation (MAO), is presented. The application of this process allows for the formation of oxide layers with different porosities on implants. Moreover, it is possible to enrich these oxide layers with species contained in solutions used for anodising, yielding suitable surface chemical properties. Anodising titanium implants in solutions containing compounds of calcium and phosphorous leads to the formation of bioactive layers and significantly reduces the time required for the osseointegration of implant to bone. Studies of the PEO process with respect to titanium implants have been conducted by a large number of research centres, and their results have been applied to the production of a new generation of titanium implants.

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Review of plasma electrolytic oxidation of titanium substrates: Mechanism, properties, applications and limitations

Aliofkhazraei

Macdonald

Matykina

et al. 2021

Applied Surface Science Advances

184

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Plasma-electrolytic oxidation of titanium in Zr(SO4)2-containing electrolyte

Cited by 17 publications

References 15 publications

Composition, surface structure, and thermal behavior of ZrO2 + TiO2/Ti and ZrO2 + CeO x + TiO2 composites formed by plasma-electrolytic oxidation

Composition, surface structure, and thermal behavior of ZrO2 + TiO2/Ti and ZrO2 + CeO x + TiO2 composites formed by plasma-electrolytic oxidation

Application of plasma electrolytic oxidation to bioactive surface formation on titanium and its alloys

Review of plasma electrolytic oxidation of titanium substrates: Mechanism, properties, applications and limitations

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