CLAUDIO COSTA MOTTA
11 resultados
Resultados de Busca
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Artigo IPEN-doc 12601 A study of high-energy milling for the production os sintered PrFeB magnets2006 - PERIGO, E.A.; SOARES, E.P.; LEAL NETO, R.M.; MOTTA, C.C.; FARIA, R.N.Artigo IPEN-doc 12486 A comparative study between low and high-energy milling processes for the production of HD PrFeCoBNb sintered magnets2007 - PERIGO, E.A.; SOARES, E.P.; TAKIISHI, H.; MOTTA, C.C.; FARIA, R.N.Artigo IPEN-doc 16265 Determination of the crystallographic texture of sintered PrFeB magnets based on X-ray diffraction patterns2007 - PERIGO, E.A.; TAKIISHI, H.; MOTTA, C.C.; FARIA, R.N.; LIMA, N.B.Artigo IPEN-doc 16264 The effect of key process parameters on crystallographic texture and magnetic properties of PrFeB HD sintered magnets produced using high-energy milling2007 - PERIGO, E.A.; LIMA, N.B.; TAKIISHI, H.; MOTTA, C.C.; FARIA, R.N.Artigo IPEN-doc 16787 Off-axis magnetic flux density of a PPM focusing system2006 - PERIGO, E.A.; MURANAKA, C.S.; MOTTA, C.C.Artigo IPEN-doc 16786 Influence of periodic magnetic field profiles on the focusing of electron beams2006 - PERIGO, E.A.; MOTTA, C.C.Artigo IPEN-doc 16785 Design of a multi-sections solenoid for power microwave tubes2005 - PERIGO, E.A.; FARIA, R.N.; BARROSO, J.J.; MOTTA, C.C.Artigo IPEN-doc 10115 The effect of particle size distribution on the magnetic properties of Pr-Fe-B sintered magnets2003 - ANGELO, J.D.; PERIGO, E.A.; MOTTA, C.C.; FARIA JUNIOR, R.N.This paper reports the results of investigations carried out to determine the influence of the particle size distribution on the magnetic properties of Pr16Fe76B8sintered magnets. Permanent magnets were prepared from the cast alloy using the powder metallurgy route and the hydrogen decrepitation process. The effect of the balls shape and weight on the particle size distribution was investigated. Spherical milling balls yielded magnetic powder with a single particle size distribution whereas spherical/tori balls yielded hydride powder with a bimodal particle size distribution.Artigo IPEN-doc 10097 A study of Pr-Fe-B magnets produced by a low-cost powder method and the hydrogen decrepitation process2003 - SOARES, E.P.; PERIGO, E.A.; TAKIISHI, H.; MOTTA, C.C.; FARIA JUNIOR, R.N.Artigo IPEN-doc 11696 A hybrid magnetic focusing system for microwave tubes2006 - PERIGO, ELIO A.; BARROSO, JOAQUIM J.; MOTTA, CLAUDIO C.