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Dy2O3, making permanent magnets more permanent

Traditional rare earth iron boron permanent magnets have the disadvantage of Low coercivity, i.e. they tend to become demagnetized  in an externally applied magnetic field. Li and coworkers arc melted an industrial rare earth (RE) alloy with abundant La and Ce (RE100 = La30.6Ce50.2Pr6.4Nd12.8, ) with iron (99.9 wt.%), and iron-boron alloy (99.5 wt.%).  The nominal  composition of the… Continue reading Dy2O3, making permanent magnets more permanent

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Dysprosium nano-magnets

Dy2O3 nanoparticle nano-magnets A previous study has explored the use of   dextran coated Dy2O3  nanoparticles as an MRI contrast agent (Norek 2008).  In another study, glucuronic acid was used to coat composite nanoparticles of Gd2O3 and Dy2O3  that served as a dual T1 and T2 relaxation agents (Tegafaw 2015). Dy(III) loaded tobacco mosaic virus nanomagnets T2… Continue reading Dysprosium nano-magnets