Papers by Author: J. González

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Authors: A. Ślawska-Waniewska, A. Roig, Juan Santiago Muñoz Domínguez, P. Nowicki, Ryszard Żuberek, J. González
Authors: N. Murillo, Fabrizio Leccabue, B.E. Watts, P. Marín, M. Vázquez, J. González, José M. Barandiarán
Authors: V. Zhukova, A. Zhukov, V. Larin, A. Torcunov, J. González, António Ramirez de Arellano-López, J.J. Quispe Cancapa, A.R. Pinto-Gómez
Abstract: Glass coated microwires with two metallic nucleus compositions Co57Fe 6.1Ni10B15.9Si11 and Fe36,4Co41,7B11,8Si10,1 with 3 different glass coating compositions (Pyrex – 74.5% SiO2, 15% - B2O3, 3%- Na2O, 2%- Al2O3 1.5% -K2O; Nonex – 73% SiO2, 16.5% - B2O3, 6% - PbO 3 %-Na2O, 1.5% -K2O; and F1 – 70.2% SiO2, 27% - B2O3, 0.8 %-Na2O, 2%- LiO2 1% -K2O;) with very similar geometry (metallic nucleus diameter 7 µm, total diameter 19 µm) have been successfully fabricated and studied. Ferich microwires in as-prepared state show rectangular hysteresis loops, which is connected with the strong internal stresses induced by the fabrication process. Co-rich compositions show inclined hysteresis loop with smaller value of coercive field. The coercivity, Hc, of Co-rich microwires is the highest and of Ferich samples is the lowest in the case of Pyrex coated microwires. The Nonex coated microwires are in the intermediate position while the F1 coated Co-rich microwires have the lowest Hc while the Fe-rich samples have the highest Hc. The mechanical tests show that the best tensile strain yield is observed in samples coated by Nonex glass followed by Pyrex and F1. In this way the variation of the glass coating material allows to tailor both magnetic and mechanical properties of glass coated tiny microwires.
Authors: N. Murillo, Fabrizio Leccabue, B.E. Watts, I. Telleria, J. González, José M. Barandiarán
Authors: A.F. Cobeño, P. Aragoneses, J.M. Blanco, L. Dominguez, A. Zhukov, V. Larin, J. González
Authors: J.J. del Val, C. Miguel, J. González, J.M. Gonzalez
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