Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Leandro Alfredo Ramajo"'
Publikováno v:
Materials Research, Vol 17, Iss 3, Pp 728-733 (2014)
Microstructure, structure and electrical and dielectric properties of ZnO-doped K0.5Na0.5NbO3 (KNN) ceramics were investigated. Powders were obtained by the conventional solid-state method. Samples doped with 0 to 1 mol% of ZnO were sintered at 1125
Externí odkaz:
https://doaj.org/article/b4f5e3de9f3642c39c4df95a149af281
Autor:
Leandro Alfredo Ramajo, Damian Enrique Ramajo, María Marta Reboredo, Diego Hernan Santiago, Miriam Susana Castro
Publikováno v:
Materials Research, Vol 11, Iss 4, Pp 471-476 (2008)
Integral capacitors (IC) of one or two-layer printed wiring board (PWB) circuits were produced using comb electrodes fixtures and dielectric composites as the inter-electrode material. ICs were fabricated at laboratory scale, using copper comb electr
Externí odkaz:
https://doaj.org/article/34316d74538c4b5e86ad99cffa629f82
Autor:
Leandro Alfredo Ramajo, Miguel Angel Ramírez, Paulo Roberto Bueno, María Marta Reboredo, Miriam Susana Castro
Publikováno v:
Materials Research, Vol 11, Iss 1, Pp 85-88 (2008)
The dielectric behavior of composite materials (epoxy resin - barium titanate and epoxy - CCTO) was analysed as a function of ceramic amount. Composites were prepared by mixing the components and pouring them into suitable moulds. In some composition
Externí odkaz:
https://doaj.org/article/a3d9c206db3e4040acdf3325a6d39dd0
Autor:
Alejandra Costantino, Leandro Alfredo Ramajo, António J. Pontes, Júlio C. Viana, Caren Rosales, Valeria Pettarin
Publikováno v:
Advanced Materials Letters. 12:1-10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57d13684353fb61f94a8b781a68dc3eb
https://doi.org/10.5185/amlett.2021.041618
https://doi.org/10.5185/amlett.2021.041618
Autor:
A. Prado Espinosa, A Somoza, Martin B. Castro, Carlos Eugenio Macchi, Leandro Alfredo Ramajo, Fernando Rubio-Marcos
Publikováno v:
Journal of the European Ceramic Society. 41:1288-1298
A study on the induced changes in the vacancy-like defect structure and the dielectric properties of K0.5Na0.5NbO3 ceramics by the addition of different amounts, between 0% and 7%, of BaTiO3 is presented. The samples were prepared by a mechanochemica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b396c5e1bcfad154b37eaa6fa27427a
https://doi.org/10.1016/j.jeurceramsoc.2020.10.016
https://doi.org/10.1016/j.jeurceramsoc.2020.10.016
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Este trabajo presenta la configuración y montaje de un equipo empleado para la cuantificar el coeficiente magnetoeléctrico dinámico (α) de compuestos cerámicos multiferroicos. En particular, se analizan las propiedades magnetoeléctricas de los
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5912ee7f83207b9195fdedf618c51a8d
https://doi.org/10.31349/revmexfis.66.462
https://doi.org/10.31349/revmexfis.66.462
Publikováno v:
Journal of Electroceramics. 44:248-255
Structural, microstructural, dielectric, ferroelectric and piezoelectric properties of the (0.95-x)Bi0.5Na0.5TiO3–0.05BaTiO3-xK0.5Na0.5NbO3 (BNT-BT-KNN) lead-free ceramics with 0.0 ≤ x ≤ 0.06 were studied. Samples were synthesized through the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49259583a86e3a5025932e7ad9e4d939
https://doi.org/10.1007/s10832-020-00216-5
https://doi.org/10.1007/s10832-020-00216-5
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 58, Iss 6, Pp 246-254 (2019)
Resumen: En este trabajo se analizó la respuesta al choque térmico de formulaciones comerciales de hormigones refractarios silicoaluminosos con el objetivo de evaluar la factibilidad de su uso como reemplazo de ladrillos refractarios de composició
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d5e3f4d8b1ba158facf8a96b38a725b
https://doi.org/10.1016/j.bsecv.2019.05.002
https://doi.org/10.1016/j.bsecv.2019.05.002
Autor:
Fernando Rubio-Marcos, A. Prado, Leandro Alfredo Ramajo, Michelle O. Castro, Javier Eduardo Camargo, Adolfo del Campo, P. Öchsner
Publikováno v:
Journal of Materials Science: Materials in Electronics. 30:18405-18412
In this work, we report the influence of synthesis conditions on the (1 − x)Na0.5Bi0.5TiO3–xBaTiO3 (BNT–BT) system, obtained by the conventional solid-state reaction method with a mechanochemical activation step through two alternative synthesi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24363a22957eff8dbf6aa998f692d273
https://doi.org/10.1007/s10854-019-02194-z
https://doi.org/10.1007/s10854-019-02194-z
Publikováno v:
Journal of the European Ceramic Society. 39:2472-2483
In this paper, cellular mullite bodies were developed by thermal direct-consolidation of foamed aqueous mullite-bovine serum albumin (BSA) and mullite-BSA-methylcellulose suspensions, burning out (650 °C, 2 h) and sintering (1600 °C, 2 h). Some mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b51d1d243fc06dea9b96c718e9e63b53
https://doi.org/10.1016/j.jeurceramsoc.2019.02.018
https://doi.org/10.1016/j.jeurceramsoc.2019.02.018