High Purity Dysprosium (III) Oxide Rare Earth Materials

Dysprosium(III) oxide is a highly insoluble, thermally stable source of dysprosium, suitable for glass, optical and ceramic applications. Dysprosium(III) oxide is a white powder that reacts with acid to form Dysprosium salts. Dysprosium(III) oxide is usually available immediately in most cases. Ultra high purity and high purity compositions improve optical quality and practicality as scientific standards. Nanoscale elemental powders and suspensions can be considered as alternative high surface area forms. Dysprosium is added to various advanced optical formulations because it emits in wavelengths of 470-500 and 570-600 nm, and is a basic additive in NdFeB magnets. Oxides do not conduct electricity. However, some perovskite structured oxides have electronic conductivity and can be applied as cathodes in solid oxide fuel cells and oxygen generation systems. High purity (99.999%) Dysprosium(III) oxide (Dy2O3) powder. Rare earth oxides are alkaline acid anhydrides, so they can react with acids and strong reducing agents in Redox. They are compounds containing at least one oxygen anion and one metal cation. They are usually insoluble in aqueous solutions (water) and extremely stable, making them suitable for ceramic structures, as simple as clay bowls for producing advanced electronic products, as well as lightweight structural components used in aerospace and electrochemical applications, such as fuel cells, where they exhibit ion conductivity. Dysprosium(III) oxide can also be made into pellets, flakes, powders, sputtering targets, flakes and nano powders (from the nano scale production facilities of American Element Corporation). Other technical, research, and security (SDS) information is also provided.

Dysprosium Oxide is a highly insoluble thermally stable Dysprosium source suitable for glass, optic and ceramic applications. Dysprosium oxide is a white powder that reacts with acids to produce dysprosium salts. Dysprosium Oxide is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale elemental powders and suspensions, as alternative high surface area forms, may be considered. Dysprosium is added to various advanced optical formulations due to the fact that it emits in the 470-500 and 570-600 nm wavelengths and is an essential additive in NdFeB magnets. Oxide compounds are not conductive to electricity. However, certain perovskite structured oxides are electronically conductive finding application in the cathode of solid oxide fuel cells and oxygen generation systemsHigh Purity (99.999%) Dysprosium Oxide (Dy2O3) Powder. Rare Earth oxide compounds are basic anhydrides and can therefore react with acids and with strong reducing agents in redox reactions. They are compounds containing at least one oxygen anion and one metallic cation. They are typically insoluble in aqueous solutions (water) and extremely stablemaking them useful in ceramic structures as simple as producing clay bowls to advanced electronics and in light weight structural components in aerospace and electrochemical applications such as fuel cells in which they exhibit ionic conductivity. Dysprosium oxide is also available in pellets, pieces, powder, sputtering targets, tablets, and nanopowder (from American Elements' nanoscale production facilities). Additional technical, research and safety (SDS) information is available.

It is used as a raw material for the preparation of dysprosium, as an additive for glass, NdFeB permanent magnets, and also in metal halide lamps, magneto-optical memory materials, yttrium iron or yttrium aluminum garnet, and in the atomic energy industry. Dysprosium oxide can also be used as an additive for NdFeB permanent magnets. Adding about 2~3% dysprosium to this magnet can improve its coercivity. In the past, the demand for dysprosium was not large, but with the development of NdFeB magnets With the increase in demand for magnets, it has become a necessary additive element, and the grade must be around 95 to 99.9%, and the demand is also increasing rapidly. Dysprosium oxide is also used as a raw material for the preparation of dysprosium metal, as an additive for glass, NdFeB permanent magnets, and in metal halide lamps, magneto-optical memory materials, yttrium iron or yttrium aluminum garnet, and in the atomic energy industry.

1)To prepare a Graphene coated nano Dysprosium(III) oxide, the method comprises the following steps: 1. preparing Dysprosium(III) oxide nanoparticles by pyrolysis; 2, Dysprosium(III) oxide nanopillars were prepared by hydrothermal method; 3, Preparing Graphite oxide solution; 4, Dysprosium(III) oxide nanoparticles and Dysprosium(III) oxide nanopillars are added to Graphite oxide solution, stirred and filtered to obtain filter residue, and the filter residue is heat treated to obtain Graphene coated nano Dysprosium(III) oxide. In addition, the invention also provides an application of Graphene coated nano Dysprosium(III) oxide prepared by the above method in the process of preparing binary doped Magnesium diboride superconducting bulk. The process method of the invention is simple, and Graphene with high surface area is used as the coating, which is conducive to the uniform dispersion of Dysprosium(III) oxide nanoparticles and Dysprosium(III) oxide nanopillars on Graphene without agglomeration, and is conducive to improving the critical current density Jc performance of binary doped Magnesium diboride superconducting bulk under low and high fields.
2) A kind of Dysprosium(III) oxide Scandium oxide was prepared as an additive for pressureless sintering to produce high performance silicon nitride (Si3N4) ceramics. Its composition and mass percentage content are: Dysprosium(III) oxide 3%~7%, Scandium oxide 5%~8%, silicon nitride 85%~92%. The purpose is to overcome the shortcomings of the existing technology and provide a method of pressureless sintering of Dysprosium(III) oxide and Scandium oxide as additives to produce high-performance silicon nitride ceramics, which can be widely used in the preparation of parts in the fields of chemical industry, machinery, metallurgy, aerospace, etc.
3) Prepare molybdenum based Dysprosium(III) oxide materials. Under the protection of inert gas, dry Dysprosium(III) oxide powder with a purity of more than 99% and dry molybdenum powder with a purity of more than 99.5%? (3-55) wt% Dy2O3 is weighed and mixed, followed by the addition of a process control agent with a final mass concentration not exceeding 2.5wt% to obtain a mixed powder; Grind the above mixed powder under the conditions of ball to material ratio of 0.8-35:1, filling coefficient of 0.05-0.85, and ball milling speed of 80-650rpm for 2-100h in a ball milling process of 45-60min - stop for 4-12min; Then, the mixed powder after ball milling is pressed into a green body by cold isostatic pressing for 0.05-4h under a pressure of 80-550MPa; Then the green body is sintered under inert gas protection at 1200~1900 ºC for 2~110h to obtain molybdenum based Dysprosium(III) oxide pellets, which are excellent neutron absorber pellets for ash Control rod.

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