#plasma spraying

Partially stabilized zirconia (PSZ) powder for plasma spraying, plasma sprayed (PS) partially stabilised zirconia (PSZ) showing splat morphology, and physical vapour deposited (PVD) partially stabilized zirconia (PSZ) showing columnar structure

Categories: Ceramic

System: ZrO2-Y2O3 / ZrO2-Yb2O3 /  ZrO2-Y2O3

Composition: ZrO2 92.5, Y2O3 7.5 (wt%) /   ZrO2 84, Yb2O3 16 (wt%) /  ZrO2 92.5, Y2O3 7.5 (wt%)

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Processing: Homogenised oven spheroidisation /  Plasma spraying /  Physical vapour deposition

Applications: For plasma spraying /  Thermal barrier coatings (TBC) for gas turbine applications

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Technique: Scanning electron microscopy (SEM) /  Field emission gun scanning electron microscopy (FEGSEM)

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Contributor: S Paul

Organisation: Department of Materials Science and Metallurgy, University of Cambridge 

Contact Us PLASMA SPRAY PROCESSORS Contact Person :- Dhimant N Doshi Office Address Address :C-20/4 , M.I.D.C. Taloja, Raigad District, Maharashtra - 410208   Tel No. :+91 - 22 - 27412575 / 27412785   Mobile No :+91 9820718722 / 9820231088   [email protected]   Websitewww.plasmaspray.co.in

http://plasmaspray.co.in/highvelocity_oxygenfuel_spraying.html

What’s plasma spraying?

In the high temperature surface process technology, when some gas (such as Nitrogen, argon, hydrogen, helium and so on) produces plasma thought compressive arc, The energy of the plasma arc concentrated temperature is very high, its flame flow temperature above ten thousand degrees Celsius, it can melt all solid engineering material. This is plasma spraying.

  In plasma spraying process, the material to be deposited— typically as a powder, sometimes as a liquid, suspension or wire — is introduced into the plasma jet, emanating from a plasma torch. In the jet, where the temperature is on the order of 10,000 K, the material is melted and propelled towards a substrate.

  Applications:

Surface of Traction equipment

The roll surface

Most classical thermal spraying

  This technique is mostly used to produce coatings on structural materials. Such coatings provide protection against high temperatures (for example thermal barrier coatings for exhaust heat management), corrosion, erosion, wear; they can also change the appearance, electrical or tribological properties of the surface, replace worn material, etc.

  It can also be used for spray powder processing (spheroidization, homogenization, modification of chemistry, etc.).This technique with variation may also be used to create porous structures, suitable for bone ingrowth, as a coating for medical implants.