Results 51 to 60 of about 5,086 (222)

Luminescence in undoped CaYAl3O7 produced via the Pechini method

Physica B: Condensed Matter, 2017
Abstract The luminescent properties of CaYAl3O7 (CYAM) were carried out in undoped powder samples produced via Pechini method. The thermal analysis combined with XRD measurements showed that 1000 °C/4 h is the best condition for the CYAM synthesis. Morphological analysis showed submicrometric particles with irregular shape.
Giordano F.C. Bispo, Adriano B. Andrade, Claudiane dos S Bezerra, Verônica C. Teixeira, Douglas Galante, Mário E.G. Valerio   +5 more
openaire   +1 more source

Spark plasma sintering‐assisted sol‐gel Pechini method: An efficient approach for bulk InGaO3(ZnO)m synthesis and texturation

International Journal of Applied Ceramic Technology, Volume 23, Issue 1, February 2026.
Abstract This article reports on the development of a spark plasma sintering (SPS)‐assisted sol‐gel method for the synthesis of dense pellets, belonging to the series of InGaO3(ZnO)m homologous phases, where m is an integer. We show that using this synthesis route, the sintering temperature is significantly decreased down to 950–1000°C as compared to ...
Sébastien Préaud, Céline Roux‐Byl, François Brisset, Oleb I. Lebedev, David Berardan   +4 more
wiley   +1 more source

Influencia de parámetros de síntesis sobre las características de los polvos cerámicos nanométricos del compuesto Sr_xBa_1-xNb₂O₆ (SBN)

Boletín de la Sociedad Española de Cerámica y Vidrio, 2013
Results on the synthesis process of nanometric ceramic powders of the SrxBa1-xNb2O6 compound (SBN) for two values of x (0.33 and 0.50), and two synthesis methods (Pechini and controlled coprecipitation) are presented.
Gaona J, S. , Muñoz, J. R., Raigoza, C.F.V. , Ramirez S., A. , Caneiro, A.   +4 more
doaj   +1 more source

Defect chemistry and transport properties of BaxCe0.85M0.15O3-d [PDF]

, 2004
The site-incorporation mechanism of M3+ dopants into A2+B4+O3 perovskites controls the overall defect chemistry and thus their transport properties. For charge-balance reasons, incorporation onto the A2+-site would require the creation of negatively ...
Espinosa, W. T. P., Haile, S. M., Li, L. P., Wu, J.   +3 more
core  

Perovskite type nanopowders and thin films obtained by chemical methods [PDF]

, 2010
The review presents the contribution of the authors, to the preparation of two types of perovskites, namely BiFeO3 and LaCoO3, by innovative methods. The studied perovskites were obtained as powders, films and sintered bodies.
Barbara Malic, Ecaterina Tenea, Elena Anghel, Jose Calderon-Moreno, Luminita Predoana, Maria Zaharescu, Mihai Anastasescu, Monica Popa, Petre Osiceanu, Viktor Fruth   +9 more
core   +1 more source

Abnormal Expansion Along the Synthesis of Zinc Stannate: A Way for Porous Ceramics Without Addition of Pore Generators

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
The abnormal expansion associated with the simultaneous synthesis and sintering of Zn2SnO4 from ZnO and SnO2 is due to the reaction mechanism and correlated with the conversion. This phenomenon opens the way to manufacture porous ceramics without the addition of pore generators, simplifying the process, and especially the thermal treatment.
María José Orts, Eugeni Cañas, Valentín Pérez‐Herranz, Sergio Mestre   +3 more
wiley   +1 more source

Advances in catalysis for fuel cells [PDF]

, 2007
Imperial Users ...
Hayes, Patrick, Hayes, Patrick
core  

Atomic‐Scale Insights into Nanoparticle Exsolution at Dislocations in Dislocation‐Engineered Catalysts

Advanced Materials, Volume 38, Issue 1, 2 January 2026.
This study reveals an atomic‐level correlation between bulk dislocations and the exsolution of surface nanoparticles through a novel approach for dislocation engineering in epitaxial thin films. Employing in situ scanning transmission electron microscopy, two primary reasons for the frequent nucleation of dislocation‐associated nanoparticles are ...
Moritz Lukas Weber, Moritz Kindelmann, Dylan Jennings, Jan Hölschke, Regina Dittmann, Joachim Mayer, Wolfgang Rheinheimer, Xufei Fang, Felix Gunkel   +8 more
wiley   +1 more source

Síntesis y caracterización de recubrimientos absorbentes selectivos para calentadores solares [PDF]

, 2016
En la actualidad existen muchos problemas ambientales asociados al alto consumo energético y a la necesidad del hombre por satisfacerlo, generando entonces contaminación de las fuentes hídricas, polución, tala de árboles, entre otras; la mayoría de estos
Moreno Soto, Jeiner Orlando
core  

Nanosized Sodium-Doped Lanthanum Manganites: Role of the Synthetic Route on their Physical Properties

, 2003
In this paper we present the results of the synthesis and characterisation of nanocrystalline La1-xNaxMnO3+delta samples. Two synthetic routes were employed: polyacrylamide-based sol-gel and propellant synthesis.
Balcells L., Balcells L., Boix T., Causa M. T., Coey J. M. D., Douy A, Gupta A., Helman J. S., Herrero E., Horyn R., Hwang H. Y., Li R.-W., Li X.-H., Mahendiran R., Malavasi L., Malavasi L., Mathur N. D., Muori M., Nagata K., Ng-Lee Y., Oseroff S. B., Pechini M. P. U.S., Ritter C., Roy S., Sanchez R. D., Shannon R. D., Singanahally T. A., Spinolo G., Tonejc A. M., Töpfer J., van Roosmalen J. A. M.   +30 more
core   +1 more source