@inproceedings{a4cd8250d895426a86081c2bce82444f,
title = "Alternative approaches for reactive surface coating on rare earth magnet alloy particulate",
abstract = "Mixed rare earth (MRE) magnetic alloy particulate of the MRE2Fe14B type readily forms a brittle, nonprotective oxide layer upon exposure to ambient air. Efforts have been made to passivate MRE magnet alloy powders through the creation of a fluoride surface layer. Previous studies have shown that this can be effectively accomplished either by exposing as-received powder to nitrogen trifluoride at elevated temperatures in a fluidized bed apparatus or in situ, during synthesis of the powder by gas atomization. Another recently developed method of coating as-received powders is through the use of a rotating kiln apparatus. This study is a preliminary comparison of the two different methods of fluoride coating for asreceived powder. Crushed MRE2Fe14B melt spun ribbon powders were fluorinated using the two methods and compared through the use of x-ray photoelectron spectroscopy, auger electron spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Preliminary results indicate that coatings created by the two different methods are comparable.",
author = "Oster, {Nathaniel T.} and Anderson, {Iver E.} and Wei Tang and Yaqiao Wu and Dennis, {Kevin W.} and Kramer, {Matthew J.} and Mccallum, {R. W.}",
year = "2008",
language = "English",
isbn = "0979348897",
series = "Advances in Powder Metallurgy and Particulate Materials - 2008, Proceedings of the 2008 World Congress on Powder Metallurgy and Particulate Materials, PowderMet 2008",
pages = "6131--6141",
booktitle = "Advances in Powder Metallurgy and Particulate Materials - 2008, Proceedings of the 2008 World Congress on Powder Metallurgy and Particulate Materials, PowderMet 2008",
note = "2008 World Congress on Powder Metallurgy and Particulate Materials, PowderMet 2008 ; Conference date: 08-06-2008 Through 12-06-2008",
}