A Review on Detonation Gun Sprayed Coatings

Singh, Lakhwinder; Chawla, Vikas; Grewal, Jasmaninder Singh

doi:10.4236/jmmce.2012.113019

Cited by 54 publications

(33 citation statements)

References 1 publication

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“…In the past decades, various traditional surface treatments, such as physical vapor deposition [1][2], chemical vapor deposition [3], ion beam assisted deposition [4] and spraying [5], have been applied to metallic substrates to improve their generally poor tribological properties. However, most of the aforementioned methods involve high processing temperature, which may degrade the coatings and/or substrates.…”

Section: Introductionmentioning

confidence: 99%

Plasma Electrolytic Oxidation Coatings on Lightweight Metals

Li¹,

Liang²,

Wang³

2013

Modern Surface Engineering Treatments

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Section: Introductionmentioning

confidence: 99%

Plasma Electrolytic Oxidation Coatings on Lightweight Metals

Li¹,

Liang²,

Wang³

2013

Modern Surface Engineering Treatments

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“…Mixture of oxygen and fuel gas (acetylene most common) is introduced into the barrel together with coating material, which is in powder form. A spark plug ignites the gas mixture [89]. Detonation liquefies and speeds up the particles to the velocity of 600 m/s.…”

Section: C) High Velocity Oxy-fuel (Hvof)mentioning

confidence: 99%

An overview of problems and solutions for components subjected to fireside of boilers

et al. 2017

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In engineering applications, there are various types of boilers such as water tube boilers, fire tube boilers, packaged boiler, fluidized bed combustion boiler, pulverized fuel boiler and waste heat boilers. These boilers are used in different industries such as power plants, paper, and chemical. The present paper reports various problems (such as agglomeration, slagging, fouling, caustic embrittlement, fatigue failure and high temperature corrosion) related to boilers and their possible solutions. Some of the controlling parameters for high temperature corrosion has also been studied viz use of inhibitors, varying temperature and pressure, sol-gel coating and thermal spray coating. Thermal spraying has emerged as a main tool for improvement in surface. Problem of corrosion, wear resistance, electrical or thermal insulation can be altered using different coating techniques and materials. Deposition of ash in biomass-fired boilers also causes severe problems of agglomeration. The problem of agglomeration can be solved using kaolin or NH 3 in the bed of boilers. Some important processes such as pulse detonation wave technology, intelligent soot blower, chemical treatment technology can be used to minimize the effects of fouling.

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“…However, these methods have been shown to change crystallinity of HA, forming an amorphous layer between the coating and implant [23][24][25]. An alternative approach to obtain coatings for biomedical application is to utilize the kinetic energy of detonation of explosive gases, to transport the bioactive powder at high velocities [25]. This effect can be achieved by the gas detonation deposition (GDD) approach.…”

Section: Introductionmentioning

confidence: 99%

“…The highest adhesion of HA coating onto titanium-based medical implant could be achieved by plasmaspraying (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25), electrophoretic (10-55 MPa), ion beam assisted (40-60 MPa) and sputter coating (80 MPa) approaches [23]. However, these methods have been shown to change crystallinity of HA, forming an amorphous layer between the coating and implant [23][24][25]. An alternative approach to obtain coatings for biomedical application is to utilize the kinetic energy of detonation of explosive gases, to transport the bioactive powder at high velocities [25].…”

Section: Introductionmentioning

confidence: 99%