نتایج جستجو برای: air plasma sprayed

تعداد نتایج: 560032  

2009
R. Jaworski

The paper aims at development of TiO2, Ca5(PO4)3OH (hydroxyapatite, HA) and their multilayer coatings onto stainless steel, titanium and aluminum substrate using suspension plasma spraying. The total thickness of the coatings was in the range 10 to 150 μm. The suspension on the base of distilled water, ethanol and their mixtures was formulated with the use of fine commercial TiO2 pigment crysta...

2011
Robert Eriksson

Thermal barrier coating systems (TBCs) are used in gas turbines to prevent high-temperature degradation of metallic materials in the combustor and turbine. One of the main concerns regarding TBCs is poor reliability, and accurate life prediction models are necessary in order to fully utilise the beneficial effects of TBCs. This research project aims at developing deeper understanding of the deg...

Journal: :Materials research express 2022

Abstract Thermal barrier coating plays a vital role in protecting materials’ surfaces from high-temperature environment conditions. This work compares the demeanour of uncoated and air plasma sprayed Cr 3 C 2 –25NiCr NiCrMoNb coated X8CrNiMoVNb16–13 substrates subjected to oxidation molten salt (Na SO 4 + 60%V O 5 ) condition at 900 °C for 50 cycles. Coating characteristics have been analyzed t...

2013
Zhe Lu Sang-Won Myoung Yeon-Gil Jung Govindasamy Balakrishnan Jeongseung Lee Ungyu Paik

The effects of the bond coat species on the delamination or fracture behavior in thermal barrier coatings (TBCs) was investigated using the yclic thermal fatigue and thermal-shock tests. The interface microstructures of each TBC showed a good condition without cracking or delamination after flame thermal fatigue (FTF) for 1429 cycles. The TBC with the bond coat prepared by the air-plasma spray ...

Journal: :Materials science & engineering. C, Materials for biological applications 2015
Alan M Smith Jennifer Z Paxton Yi-Pei Hung Martin J Hadley James Bowen Richard L Williams Liam M Grover

Calcium phosphate coatings have been applied to the surface of metallic prostheses to mediate hard and soft tissue attachment for more than 40years. Most coatings are formed of high purity hydroxyapatite, and coating methods are often designed to produce highly crystalline surfaces. It is likely however, that coatings of lower crystallinity can facilitate more rapid tissue attachment since the ...

2009
Chuanxian Ding Xuanyong Liu

Plasma sprayed zirconia deposits have been employed in wide applications for thermal protection. Recently, the use of nanostructural surface represents an alternative for improving the performance of these coatings. The present paper reviewed the works in this field at our research group, including synthesis of nanostructural ZrO2 powders, influence of spraying parameters on microstructure and ...

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