Nanocoatings for engine application

Dahotre, Narendra B.; Nayak, S.

doi:10.1016/j.surfcoat.2004.05.006

Cited by 113 publications

(44 citation statements)

References 41 publications

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“…Moderately high hardness values of the fabricated multilayer ceramics can be attributed to their fine crystallite size (column diameter) in nanometer range in accordance with Hall-Petch relation 36) which is in competition with grain boundary sliding observed in materials with grain sizes around 10-20 nm. 41) In the extreme case, suppression of dislocation propagation by finer grains and grain boundary sliding by stronger grain boundaries is shown to be the key to obtain superhard materials.…”

Section: Discussionsupporting

confidence: 64%

“…The kinetic limitations of the deposition process accounts for the accumulation of voids along the columnar grain boundaries. 36) In a former study, the increase in the amount of elongated voids with increasing deposition pressure in TiO 2 layers deposited via reactive magnetron sputtering was attributed to the decreasing relative amount of the bombarding particles in the plasma forming a more porous final structure. 37) Void content in the present multilayer ceramics also showed a similar dependence to deposition pressure as in the case of sputtered single phase TiO 2 films.…”

Section: Discussionmentioning

confidence: 97%

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Effect of Microstructure on the Mechanical Behavior of Reactive Magnetron Sputtered Al2O3/TiO2 Multilayer Ceramics

Dericioğlu

2008

Mater. Trans.

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Mechanical characteristics of reactive magnetron sputtered Al 2 O 3 -TiO 2 multilayer ceramics were studied. Tailored mechanical properties such as moderately high hardness and reasonable toughness were achieved through varying sputtering process parameters resulting in microstructural control at nano-scale. Interchanging Al 2 O 3 and TiO 2 layers with a single layer thickness of $65{70 nm were deposited on single crystal alumina (sapphire) substrates to form the multilayer structure composed of 10 layers. Deposition pressure was systematically changed throughout the process to obtain variety of microstructures. Nanostructured Al 2 O 3 and TiO 2 layers with a high degree of uniformity and interlayer bonding were obtained. The effect of the deposition pressure on the microstructure, and hence the ensuing physical characteristics of the multilayer ceramics were investigated. Resulting physical property sets were discussed in relation to the nanometer-order controlled microstructures. Potential of the nanostructured Al 2 O 3 -TiO 2 multilayer ceramics for advanced engineering applications in terms of their processing and capacity for improved mechanical properties were addressed.

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Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 97%

Effect of Microstructure on the Mechanical Behavior of Reactive Magnetron Sputtered Al2O3/TiO2 Multilayer Ceramics

Dericioğlu

2008

Mater. Trans.

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“…In particular, nanostuctured coatings are expected to provide several industries with enhanced components leading to better properties and longer lifetime [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

Bannier

Vicent

Rayón

et al. 2014

Applied Surface Science

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Versión / Versió:Preprint were used as starting materials. The coatings microstructure and phase composition were fully characterised using FEG-SEM and XRD techniques. Nanoindentation technique was used to determine the coatings hardness and elastic modulus properties.Results have shown that the addition of titania to alumina SPS coatings causes different crystalline phases and a higher powder melting rate is reached. The higher melted material achieved, when titania is added leads to higher hardness and elastic modulus when the same spraying parameters are used.

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“…The results reveal that the phase change of zirconia forms cracks so that the thermal barrier coating gets degraded. [50] Traditional coating mechanism including diamond like carbon insulation ends in shortcomings in relation with dimensional stability and durability. In this regard, Nano grains of crystalline coating have developed, that solved all such limitations.…”

Section: Durabilitymentioning

confidence: 99%

Efficiency of Nano Ceramic Coated and Turbocharged Internal Combustion Engine- A Review

Diaz¹

2017

JAMES

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Thermal Barrier Coating (TBC) often denotes the ceramic/Nano ceramic insulation layered to the surface of the engine or any other parts to enhance the thermal insulation characteristics by increasing efficiency and minimizing the need of cooling system. Above all, load and speed of the engine is optimized with respect to output power, volumetric efficiency and exhaust control. Insulation of combustion chamber with ceramic enhances its efficiency and it is also significant in terms of pollution control and fatigue lifespan. On account of these, this article reviews a list of papers that contribute in studies, where the influence of nano ceramic coating and the use of turbocharging mechanism in optimization of engine performance are described.

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Nanocoatings for engine application

Cited by 113 publications

References 41 publications

Effect of Microstructure on the Mechanical Behavior of Reactive Magnetron Sputtered Al<SUB>2</SUB>O<SUB>3</SUB>/TiO<SUB>2</SUB> Multilayer Ceramics

Effect of Microstructure on the Mechanical Behavior of Reactive Magnetron Sputtered Al<SUB>2</SUB>O<SUB>3</SUB>/TiO<SUB>2</SUB> Multilayer Ceramics

Effect of TiO 2 addition on the microstructure and nanomechanical properties of Al 2 O 3 Suspension Plasma Sprayed coatings

Efficiency of Nano Ceramic Coated and Turbocharged Internal Combustion Engine- A Review

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