Výsledky vyhledávání - "J. R. D. Pereira"

Exploiting the magnetoelectric effect in piezoelectric/conductor composites for sensing static magnetic fields

Autor: A. L. S. Freitas, D. Z. Montanher, Ivair A. Santos, J. R. D. Pereira, F. J. Gaiotto, R. G. Nespolo, D. M. Silva

Publikováno v: Integrated Ferroelectrics. 174:81-87

In this work, static magnetic field sensors based on the interaction between the Lorentz force and the direct piezoelectric effect were developed and characterized. The major components of these solid-state sensors are a piezoelectric/conductor lamin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef8b3a5283071e9a223162d32e0ce178
https://doi.org/10.1080/10584587.2016.1192904

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Voltage gain and efficiency of a bi-layered radial mode piezoelectric/magnetoelectric solid-state transformer

Autor: Ivair A. Santos, José Antonio Eiras, D. Garcia, Amar S. Bhalla, V. F. Freitas, D. M. Silva, D. Z. Montanher, Ruyan Guo, F. J. Gaiotto, L. F. Cótica, J. R. D. Pereira

Publikováno v: Integrated Ferroelectrics. 174:210-216

Piezoelectric transformers are devices able to raise an electrical input voltage with low energy losses. However, there are a few reports on the designing of multiferroic piezoelectric transformers. In this paper, an alternative bi-layer radial mode

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ab81865b339566ba9477f4ca937798a
https://doi.org/10.1080/10584587.2016.1196560

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Low temperature specific heat of doped and undoped glasses

Autor: A.N. Medina, Mauro Luciano Baesso, Jurandir H. Rohling, J. R. D. Pereira, Antonio M. Bento, Nelson G. C. Astrath, A. Steimacher, F. C. G. Gandra, L.M. da Silva

Publikováno v: Journal of Non-Crystalline Solids. 352:3572-3576

In this work we have measured the specific heat, cp, of several glasses between 2 and 160 K. The experiments were performed in low silica calcium aluminosilicate (prepared under vacuum and room atmosphere conditions), in silicate and in fluoride glas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2995ade6cf024b3e16b5a6fcb73aa2b6
https://doi.org/10.1016/j.jnoncrysol.2006.03.088

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Luminescence quantum efficiency investigation of low silica calcium aluminosilicate glasses doped with Eu2O3 by thermal lens spectrometry

Autor: Antonio M. Bento, J. R. D. Pereira, Nelson G. C. Astrath, Jurandir H. Rohling, M.P.P. de Castro, A. A. Andrade, Andressa Novatski, Mauro Luciano Baesso, Helion Vargas, Samuel L. Oliveira, Luiz Antônio de Oliveira Nunes, M.F. Coutinho

Publikováno v: Journal of Non-Crystalline Solids. 352:3624-3627

The thermal diffusivity and luminescence quantum efficiency of Eu in low silica calcium aluminosilicate glasses have been measured using the mode mismatch Thermal Lens technique (TL). Two different concentrations were studied: 0.5 and 5 (wt%) of Eu 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a27fcee9dd8a22279332be4bd364ee0
https://doi.org/10.1016/j.jnoncrysol.2006.03.092

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Thermo Optical Properties of Transparent PLZT 10/65/35 Ceramics

Autor: J. R. D. Pereira, Mauro Luciano Baesso, Antonio M. Bento, A.N. Medina, Ivair A. Santos, A. R. Nunes, José Antonio Eiras, E. A. Falcao, D. Garcia

Publikováno v: Ferroelectrics. 336:191-196

In this work thermal lens spectrometry, thermal relaxation calorometry and optical interferometry were employed to determine the thermo-optical properties of transparent PLZT 10/65/35 ceramics. The thermal diffusivity, the specific heat and the tempe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fb96fbc2a9b9a9219e5253fe0bc8f225
https://doi.org/10.1080/00150190600710757

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