Research on the Surface Treatment of Magnetic Powder in Bonded Nd8Fe80B6Co6 Alloy

Hao Feng Zhao; Ling Wang; Jun Yi Su

doi:10.4028/www.scientific.net/KEM.373-374.617

Paper Titles

Lead-Free Oxidation- Resistant Glass-Ceramic Coating for Heat Processing of Ti-6Al-4V Alloy
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Erosion Wastage at High Temperature for Arc Spraying Coatings
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Corrosion Behavior of TiO₂ Coating on Magnesium Alloy AM60 in Hank’s Solution
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Deposition of Bioactive Titania Layers on Non-Metallic Substrates under Ambient Conditions due to Hydrolysis of Titanium Oxysulfate Solution
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Research on the Surface Treatment of Magnetic Powder in Bonded Nd8Fe80B6Co6 Alloy
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Enhanced Up-Conversion Emission of Er³⁺-Doped Al₂O₃ Powders by Y³⁺ Codoping Prepared in a Non-Aqueous Sol-Gel Process
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In situ Photoemission Study on Initial Growth of Er₂O₃ Films on Si(001)
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Surface Grafting Modification of Silk Fibroin by Atom Transfer Radical Polymerization
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Drug-Eluting Coronary Stents Coated with Polysulfone-Poly(ethylene Oxide) Block Copolymer by Ultrasonic Spray
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Research on the Surface Treatment of Magnetic Powder in Bonded Nd8Fe80B6Co6 Alloy

Abstract:

Nd, Ce and Pr in ER-magnets are very active and easy react with oxygen and other oxidizing substance [1]. So this paper deals with the formation of some organic films on the Nd8Fe80B6Co6 magnetic powders. Then the belt of the alloy was made in a melt-spun furnace and then heat-treated at certain temperature. After that the magnetic powders were prepared by special crashing techniques. Epoxy resin and titanate were chosen as coat materials. The test showed that the epoxy-titanate coating material has the lowest weight increase in the exposure of oxidation atmosphere. Effects of the coat materials on the properties of bonded alloy were also investigated. The magnetic properties of the alloy with epoxy-titanate coating material were similar to one without coat.