Zobrazeno 1 - 10
of 167
pro vyhledávání: '"J. Portelles"'
Autor:
J. I. Benavides Benitez, M. Diaz Castro, F. J. Quiles Latorre, J. Portelles Rodriguez, Doris del Carmen Rivero Ramírez
Publikováno v:
Revista Ingeniería Electrónica, Automática y Comunicaciones, Vol 31, Iss 3, Pp 22-27 (2011)
El siguiente trabajo describe un generador de señales y un amplificador de alto voltaje usados para generar y amplificar las señales necesarias para una instalación de obtención del lazo de histéresis en muestras de materiales ferroeléctricos.
Externí odkaz:
https://doaj.org/article/371ef9ce75cd46e1adfc67a00a6017f9
Publikováno v:
AIP Advances, Vol 2, Iss 1, Pp 012122-012122-10 (2012)
A study of the dielectric and magnetic properties of multiferroic materials using the Monte Carlo (MC) method is presented. Two different systems are considered: the first, ferroelectric-antiferromagnetic (FE-AFM) recently studied by X. S. Gaoand J.
Externí odkaz:
https://doaj.org/article/39232e6cd96545609ddd76686bb7687b
Autor:
Jorge J. Portelles Rodríguez, Juan Fuentes Betancourt, María Dolores Durruthy, René López Noda, Doris Rivero Ramirez, Norma Palmero, Moisés Hernández García, Yondriel de Armas Figueroa, Julia Rebellón
Publikováno v:
Anales de la Academia de Ciencias de Cuba, Vol 12, Iss 1 (2022)
Introducción. el presente trabajo, muestra la descripción de los métodos de obtención empleados para lograr piezocerámicas libres de plomo KNN dopadas: (K0.5Na0.5)0.95La0.05(Nb0.9Ti0.05)O2.9 y (K0.44Na0.52Li0.04)0.97La0.01Nb0.9Ta0.103 y la carac
Externí odkaz:
https://doaj.org/article/4aa6ecfbaeab4dbc9c973584be88771c
Autor:
H'Linh Hmŏk, Jesús M. Siqueiros, J. Portelles, Y. de Armas Figueroa, R. López-Noda, J. Fuentes
Publikováno v:
Phase Transitions. 94:308-316
The c66E values of PZT53/47 doped with 0.6% Gd2O3 show an anomalous behavior near 132°C as a consequence of a ferroelastic transition. A non-linear fit to the experimental data of the elastic stiff...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e90806b0be9ff10171cc9a5d108dc15f
https://doi.org/10.1080/01411594.2021.1932883
https://doi.org/10.1080/01411594.2021.1932883
Autor:
O. Raymond Herrera, J.J. Gervacio Arciniega, J. Fuentes, Z.I. Bedolla Valdez, Jesús M. Siqueiros, J. Portelles, C. Ostos, M.D. Durruthy Rodríguez
Publikováno v:
Ceramics International. 47:11958-11965
A structural and physical properties study on ferroelectric (K0·44Na0·52Li0.04)0.97La0·01Nb0·9Ta0·1O3 ceramics with monocrystalline grains of orthorhombic (O) and tetragonal (T) perovskite phases coexisting at room temperature (RT) is presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abca473747cd6025324ba944d4fa42b8
https://doi.org/10.1016/j.ceramint.2021.01.037
https://doi.org/10.1016/j.ceramint.2021.01.037
Dielectric Spectroscopy of the (K0.44Na0.52Li0.04)0.97La0.01Nb0.9Ta0.1O3 Ceramic Obtained by Sol-Gel
Autor:
R. López-Noda, J. Portelles, G. Rojas-George, A. Reyes-Rojas, J. Fuentes, J.F. Rebellon-Watson, H'Linh Hmŏk, M.P. Cruz, J.M. Siqueiros Beltrones
(K0.44Na0.52Li0.04)0.97La0.01Nb0.9Ta0.1O3 lead free ceramics were synthesized by sol-gel method. Their morphology, crystal structure and spectroscopic dielectric properties were analyzed by the appropriate techniques. The co-existence of an orthorhom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::268c4db526a226fd7b019c9634c8f0f7
https://doi.org/10.21203/rs.3.rs-55576/v1
https://doi.org/10.21203/rs.3.rs-55576/v1
Autor:
J.J. Gervacio, O. Raymond, C. Ostos, J. Fuentes, Jesús M. Siqueiros, J. Portelles, M. P. Cruz, J. Heiras
Publikováno v:
Ferroelectrics. 534:175-182
The results obtained in the study of [(K0.44 Na0.52 Li0.04)0.97La0.01]Nb0.9Ta0.103 ceramics obtained by solid state sintering from the precursor NaNbO3 synthetized by the reactive templated...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43b176976ea604a6b921a5eb1158d0a5
https://doi.org/10.1080/00150193.2018.1473665
https://doi.org/10.1080/00150193.2018.1473665
Autor:
J. Heiras, Ryan B. Wicker, Yu Ding, A. Hurtado Macias, J. Portelles, Jorge Lopez, A. Syeed, Aurelio Paez, Chunqiang Li, Carlos A. Díaz-Moreno
Publikováno v:
Ceramics International. 44:4727-4733
Fine structures (ferroelectric domains), ferroelectricity and Second Harmonic Generation results were found and studied as a function of laser linearly and circularly polarization dependent polarized excitations in ferroelectric stoichiometric La 0.0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd955b4cef903d9e4849bffdc5fb0c79
https://doi.org/10.1016/j.ceramint.2017.12.055
https://doi.org/10.1016/j.ceramint.2017.12.055
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Autor:
Carlos A. Díaz-Moreno, Abel Hurtado-Macias, J. Heiras, Miguel Jose Yacaman, J.R. Farias, Chunqiang Li, Jesús González-Hernández, Yu Ding, Jorge Lopez, J. Portelles
Publikováno v:
Journal of Magnetism and Magnetic Materials. 433:262-270
Relaxor ferroelectricity, ferromagnetism and Second Harmonic Generation properties were founded and studied as a function of a reduction heat treatment at 650 °C in a Ar-5%H 2 atmosphere in stoichiometric La 0.05 Li 0.85 NbO 3 nanoparticles of 40 nm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f9aba7cc81fdc1cd0b460678ab69c20
https://doi.org/10.1016/j.jmmm.2017.03.022
https://doi.org/10.1016/j.jmmm.2017.03.022