Search Results - "Harris, I.r"

The use of hydrogen to separate and recycle neodymium–iron–boron-type magnets from electronic waste by Walton, A., Yi, Han, Rowson, N.A., Speight, J.D., Mann, V.S.J., Sheridan, R.S., Bradshaw, A., Harris, I.R., Williams, A.J.

“…The rare earth metals have been identified by the European Union and the United States as being at greatest supply risk of all the materials for clean energy…”
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Multiple recycling of NdFeB-type sintered magnets by Zakotnik, M., Harris, I.R., Williams, A.J.

“…Some fully dense, sintered NdFeB-type magnets (employed in VCM disc drives) have been subjected to a recycling process using the hydrogen decrepitation (HD)…”
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Microstructure of ball milled MgH2 powders upon hydrogen cycling: An electron microscopy study by PAIK, B, WALTON, A, MANN, V, BOOK, D, JONES, I. P, HARRIS, I. R

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Hydrogen storage in ion-exchanged zeolites by Langmi, H.W., Book, D., Walton, A., Johnson, S.R., Al-Mamouri, M.M., Speight, J.D., Edwards, P.P., Harris, I.R., Anderson, P.A.

“…The hydrogen storage properties of zeolites X, Y, A and Rho containing various exchangeable cations have been investigated. All hydrogen storage capacities…”
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A study of La-substituted strontium hexaferrite by hydrothermal synthesis by Wang, J.F, Ponton, C.B, Grössinger, R, Harris, I.R

“…The possibility of replacing Sr by La and Fe by Co and the subsequent improvement of the magnetic properties of the M-type ferrite stimulated our interest in…”
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A study of Nd-substituted Sr hexaferrite prepared by hydrothermal synthesis by Wang, J.F., Ponton, C.B., Harris, I.R.

“…Nd-substituted Sr hexaferrite (Sr/sub 1-x/Nd/sub x/Fe/sub 12/O/sub 19/) plate-like particles were synthesized hydrothermally and then calcined at temperatures…”
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Study of solid-state reactions in Sm(Co, Fe, Cu, Zr) z 2:17-type alloys by means of in situ electrical resistivity measurements by Corfield, M.R., Harris, I.R., Williams, A.J.

“…In the present work, solid-state reactions in Sm 2(Co, Fe, Cu, Zr) 17-type alloys have been investigated by means of in situ electrical resistivity…”
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A zinc coating method for Nd–Fe–B magnets by Walton, A., Speight, J.D., Williams, A.J., Harris, I.R.

“…A newly developed Low Pressure Pack Sublimation (LPPS) process has been used to coat fully dense Nd–Fe–B sintered magnets with zinc. The process was based on a…”
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The effects of blending additions of copper and cobalt to Nd16Fe76B8 milled powder to produce sintered magnets by MOTTRAM, R. S, WILLIAMS, A. J, HARRIS, I. R

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Rare earth substitutions in M-type ferrites by Grossinger, R., Kupferling, M., Blanco, J.C.T., Wiesinger, G., Muller, M., Hilscher, G., Pieper, M.W., Wang, J.F., Harris, I.R.

“…In hexaferrites of the composition SrFe/sub 12/O/sub 19/ (SrM), Sr was substituted by R = La, Sm, and Nd. The precursors were weighed according to different…”
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The development of microstructure during hydrogenation–disproportionation–desorption–recombination treatment of sintered neodymium-iron-boron-type magnets by Sheridan, R.S., Harris, I.R., Walton, A.

“…The hydrogen absorption and desorption characteristics of the hydrogenation disproportionation desorption and recombination (HDDR) process on scrap sintered…”
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Complete ductility in NdFeB-type alloys using the Hydrogen Ductilisation Process (HyDP) by Brooks, O.P., Walton, A., Zhou, W., Brown, D., Harris, I.R.

“…The work outlined in this paper demonstrates significant improvements in ductility during the Hydrogen Ductilisation Process (HyDP) [1] of a Neomax-type alloy…”
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A study of the effects of the addition of various amounts of Cu to sintered NdFeB magnets by Ragg, O.M., Harris, I.R.

“…Magnets according to the formula (Nd 16Fe 76B 8) 1 − x Cu x (0.1≤ x≤1.5) have been produced by adding Cu powder to hydrogen decrepitated NdFeB powder prior…”
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Electromagnetic design optimization of a powder aligning fixture for a compression-molded anisotropic NdFeB ring magnet by Kinsey, D.J., Jewell, G.W., Howe, D., Williams, A.J., Lillywhite, S.J., Harris, I.R.

“…The paper describes the design optimization of an electromagnet for aligning anisotropic NdFeB powder during the compression molding of a two-pole ring magnet…”
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The Hydrogen Ductilisation Process (HyDP) for shaping NdFeB magnets by Brooks, O., Walton, A., Zhou, W., Harris, I.R.

“…One of the major drawbacks of NdFeB–based, fully dense, sintered magnets is that they are hard and extremely brittle. Therefore, in order to produce the final…”
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Improved HDDR processing route for production of anisotropic powder from sintered NdFeB type magnets by Sheridan, R.S., Williams, A.J., Harris, I.R., Walton, A.

“…The hydrogenation disproportionation desorption recombination (HDDR) process has been investigated as a possible means of producing bonded magnets from used…”
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Extrusion of strontium hexaferrite magnets with radial alignment using hydrothermally synthesized powder by Yuan, Z.C., Blackburn, S., Williams, A.J., Harris, I.R.

“…Hydrothermally synthesized strontium hexaferrite (HT-SrM) powder was combined with an ethylvinylacetate (EVA)-paraffin wax system to give an extrudable paste…”
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Possible methods of recycling NdFeB-type sintered magnets using the HD/degassing process by Zakotnik, M., Harris, I.R., Williams, A.J.

“…With the rapid growth in the use of NdFeB-type magnets and with the growing environmental need to conserve both energy and raw materials, the recycling of…”
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The effects of AB2 (A = Zr,Hf,Ti) additions on the free-iron content in ingots with the initial composition of Nd2.2Fe14B1.1 by Kirby, K., Shaaban, A., Walton, A., Kennedy, D., Williams, A.J., Brooks, O.P., Sheridan, R.S., Harris, I.R.

“…•A 1 mol% addition of ZrB2 to Nd2.2Fe14B1.1 reduced Fe content from 12.34% to <1%•Zr additions to Nd2.2Fe14B1.1 were not as effective in reducing Fe…”
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Further studies of hydrogenation, disproportionation, desorption and recombination processes in a Nd5Fe2B6 boride by Yartys, V.A, Gutfleisch, O, Harris, I.R

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