Development of Spherical Iron-Based Composite Powder with Carried Alumina Abrasive Grains by Plasma Spray

Kotaro Hanada; Hitomi Yamaguchi

doi:10.4028/www.scientific.net/AMR.75.43

Paper Titles

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Depletion Model of Aluminum in Bond Coat for Plasma-Sprayed Thermal Barrier Coatings
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Oxidation Resistance of Multicomponent CrTiAlN Hard Coatings at Elevated Temperatures
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Development of Spherical Iron-Based Composite Powder with Carried Alumina Abrasive Grains by Plasma Spray
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Ceramic Coatings by Electrophoretic Deposition: Processing and Properties
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Electroless Ni-Co-P Coatings on Sintered Nd-Fe-B Magnets with Improved Corrosion Resistance
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Study on the Pretreatment Process for Nickel Coating on Microspheres
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Effect of Silicon Sol on Anodic Oxidation Film of Titanium Alloys
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 75Development of Spherical Iron-Based Composite...

Development of Spherical Iron-Based Composite Powder with Carried Alumina Abrasive Grains by Plasma Spray

Abstract:

This paper describes the development of spherical iron-based composite powder with carried alumina abrasive grains made by a plasma spray technique. Carbonyl iron powder (7.2 μm average size) and alumina abrasive grains (0.3 μm average size) are sprayed into the plasma flame from the respective nozzles simultaneously, or their mechanical mixture is directly plasma-sprayed. In case of the composite powder obtained by the direct spray method, the alumina abrasives are well carried on the carbonyl iron particles. However, a plasma current of more than 100 A causes melting and vaporizing of the alumina abrasives;, consequently the carbonyl iron and alumina abrasives are separated. The magnetic abrasive experiments with the composite powder developed are made for SUS304 stainless steel plate, and the result shows that the developed composite powder has high potential abrasive performance.

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Periodical:

Advanced Materials Research (Volume 75)

Pages:

43-46

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.75.43

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Online since:

June 2009

Authors:

Kotaro Hanada, Hitomi Yamaguchi

Keywords:

Composite, Magnetic Abrasive, Plasma Spraying, Powder, Surface Finish

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