High-Power Diode Laser Surface Treated HVOF Coating to Combat High Energy Particle Impact Wear

Mann, Ben; Arya, Vivek; Pant, B. K.

doi:10.1007/s11665-013-0475-5

Cited by 18 publications

(3 citation statements)

References 17 publications

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“…The microhardness of "as-sprayed" HVOF coatings ranges from 1,450 to 1,590 H v ; after laser treatment this range had significantly increased to 1,800-1,890 H v . In addition to that, HEPIW laboratory test resulted that HPDLtreated WC-10Co-4Cr HVOF-sprayed coating is 26 times better than conventional AISI 410 steel and eight times better than "as-sprayed" HVOF coating [91].…”

Section: Coatings For Hydro Energymentioning

confidence: 92%

“…This selected powder of WC-10Co-4Cr had showed improved coating properties such as microhardness, fracture toughness, and high energy particle impact wear (HEPIW) resistance due to surface treatment approach by high power diode laser (HPDL) method [91]. The microhardness of "as-sprayed" HVOF coatings ranges from 1,450 to 1,590 H v ; after laser treatment this range had significantly increased to 1,800-1,890 H v .…”

Section: Coatings For Hydro Energymentioning

confidence: 99%

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Coatings for Energy Applications

Keshri

Sribalaji

2015

Thin Film Structures in Energy Applications

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This chapter aims at providing an understanding about the potential applications of various types of coatings in energy sector. As the energy demands are growing day by day, there is need of enhancing the efficiency of energy systems, which can be enhanced using the advanced coatings. This chapter summarizes about the application of thin films and thick coatings of conventional/nanomaterials in both renewable and non-renewable energy sectors. A comparison between the efficiencies of systems with and without coatings has also been addressed. The importance and challenges associated with adding nanomaterials like carbon nanotubes (CNT), graphene, and various nanostructures with conventional coating material have also been discussed. This chapter can lead to better fundamental understanding about the coatings, which ensures new designs, high efficiency, and large application of coatings in energy sector. IntroductionEnergy has been the part of our life, especially electricity plays a vital role in our modern society. With an ever-increasing population, energy demand also growing faster for the past few decades. To meet the increased demand, every country has started to explore different energy systems to produce and store electricity in an efficient and most importantly in the eco-friendly way [1]. Hence, by increasing energy production, emission of greenhouse gases like carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) also rises to its peak. In order to decrease the emission of greenhouse gases, a worldwide initiation has also been in progress. Energy conservation steps have been introduced, either by reducing CO 2 emission from non-renewable sources like coal, natural gas, petroleum, and nuclear sources; or by avoiding such emissions using renewable energy sources as wind, water, sunlight, or biomass.

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Section: Coatings For Hydro Energymentioning

confidence: 92%

Section: Coatings For Hydro Energymentioning

confidence: 99%

Coatings for Energy Applications

Keshri

Sribalaji

2015

Thin Film Structures in Energy Applications

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“…The recent advent of compact, smallfootprint high-power diode lasers capable of delivering controlled and uniform radiation over large areas also makes this route viable for industrial implementation. [144] Laser post-treatment of plasma-and HVOF-sprayed hard coatings has been reported [145,146] and has been found to result in the increase in other properties, such as erosion [145] and dry sliding wear [146] resistance. Laser glazing of ceramic coatings has also been widely studied and demonstrated to yield a completely solidified, dense top layer with segmented cracks.…”

Section: Feedstock Materials Selection and Postprocessingmentioning

confidence: 99%

Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges

et al. 2022

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This review aims to consolidate scattered literature on thermally sprayed coatings with nonionizing electromagnetic (EM) wave absorption and shielding over specific wavelengths potentially useful in diverse applications (e.g., microwave to millimeter wave, solar selective, photocatalytic, interference shielding, thermal barrier‐heat/emissivity). Materials EM properties such as electric permittivity, magnetic permeability, electrical conductivity, and dielectric loss are critical due to which a material can respond to absorbed, reflected, transmitted, or may excite surface electromagnetic waves at frequencies typical of electromagnetic radiations. Thermal spraying is a standard industrial practice used for depositing coatings where the sprayed layer is formed by successive impact of fully or partially molten droplets/particles of a material exposed to high or moderate temperatures and velocities. However, as an emerging novel application of an existing thermal spray techniques, some special considerations are warranted for targeted development involving relevant characterization. Key potential research areas of development relating to material selection and coating fabrication strategies and their impact on existing practices in the field are identified. The study shows a research gap in the feedstock materials design and doping, and their complex selection covered by thermally sprayed coatings that can be critical to advancing applications exploiting their electromagnetic properties.

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