Results 61 to 70 of about 528 (114)

Crystalline structure and electrical properties of solid solutions YNi_xMn_1-xO₃

Boletín de la Sociedad Española de Cerámica y Vidrio, 1999
Solid solutions belonging to the Mn-rich region of the YNiXMn1-XO3 system have been studied. The powders were prepared by solid state reaction between the corresponding oxides. Sintered ceramics were obtained by firing at 1325-1350ºC.
Moure, C., Durán, P., Fernández, J. F., Gutiérrez, D.   +3 more
doaj  

Crystalline structure and electrical properties of YCoxMn1-xO3 solid soluitons [PDF]

, 2001
[ES] Se han estudiado las soluciones sólidas correspondientes al sistema YCoXMn1-XO3 con x=0.2...0.7. Los polvos fueron preparados por reacción en estado sólido de los correspondientes óxidos.
Fernández Lozano, José Francisco, Gutiérrez, D., Moure Jiménez, Carlos, Peña, Octavio   +3 more
core   +1 more source

Estructura cristalina y propiedades eléctricas de soluciones sólidas YCu_xMn_1-xO₃

Boletín de la Sociedad Española de Cerámica y Vidrio, 2001
Solid solutions belonging to the Mn-rich region of the YCuxMn1-xO3 system have been studied. The powders were prepared by solid-state reaction between the corresponding oxides. Sintered ceramics were obtained by firing at 1100−1200 ºC.
Peña, O., Fernández, J. F., Moure, C., Gutiérrez, D.   +3 more
doaj  

Modelização e estudo experimental de óxidos multiferróicos [PDF]

, 2011
Mestrado em Engenharia ...
Fenta, Abel Eduardo Silva
core  

Síntese de pós de LaMnO3 e LaCrO3 dopados com Sr pelo método de combustão: caracterização estrutural e avaliação termodinâmica Synthesis of Sr-doped LaMnO3 and LaCrO3 powders by combustion method: structural characterization and thermodynamic evaluation

Cerâmica, 2012
Manganita de lantânio dopada com estrôncio (LSM) e cromita (LSC) em pó, bem como as correspondentes amostras não dopadas, foram sintetizadas pelo método de combustão, usando dois diferentes combustíveis (ureia e glicina).
A. L. A. da Silva, L. da Conceição, A. M. Rocco, M. M. V. M. Souza   +3 more
doaj  

Preparación y caracterización de perovskitas decobaltoy manganeso por los métodoscitrato y atomización pirolítica (spray pyrolysis) [PDF]

, 2014
En este trabajo se prepararon óxidos mixtos con estructura perovskita, con fórmulas La1-xTRxMe1-yNiy (TR = Ce, Pr, Nd, Gd, Sm y Er; M = Co, Mn) por los métodos de citrato amorfo y atomización pirolítica (spray pyrolysis).
Moreno Aldana, Luis Carlos
core   +1 more source

Estabilidad térmica de manganitas tipo La1-xCaxMnO3 obtenidas mediante mecanosíntesis

, 2009
Manganitas de Lantano, Mecanosíntesis, Estabilidad Térmica, Estructura Cristalina, Energía de Activación.
I. A. Lira Hernández, A.M. Bolarín Miró, F. Sánchez De Jesús, C.A. Cortés Escobedo   +3 more
openaire   +3 more sources

Estructura cristalina y propiedades de la solución sólida YCo_XMn_1-XO₃

Boletín de la Sociedad Española de Cerámica y Vidrio, 2002
Solid solutions corresponding to the YCoXMn1-XO3 system, x=0.2...0.7 have been studied. The powders were prepared by solid state reaction of the corresponding oxides. Sintered bodies were obtained by firing between 1250 and 1350ºC.
Moure, C., Fernández, J. F., Pena, O., Gutiérrez, D.   +3 more
doaj  

Exchange bias en manganitas de La1-xCaxMnO3 dopadas con electrones [PDF]

, 2015
In this work the exchange bias (EB) phenomenon, which is characteristic of systems with diferent magnetic phases in contact, was investigated. A study of manganese oxides of the type La1xCaxMnO3 (LCMO), where x is the calcium (Ca) doping, was performed ...
Pérez de la Vega, Camilo Rafael
core  

A note on the different crystalline features of the EuMnO₃-based solid solutions as a function of the modifying cation nature

Boletín de la Sociedad Española de Cerámica y Vidrio, 2010
The structural properties of solid solutions based on EuMnO3, in which Eu has been substituted by divalent Ca2+ and Mn by the divalent cation Ni2+ or the variable valence cation Co2+-Co3+ have been studied by X-ray diffraction (XRD) and X-ray absorption ...
Peña, O., Tartaj, J., Moure, A., Moure, C.   +3 more
doaj