Results 11 to 20 of about 10,938 (115)

Electrospun Poly(caprolactone)/Poly(ethylene oxide) Membranes Incorporating Green-Synthesized Zinc Oxide Nanoparticles for Enhanced Wound Healing Applications. [PDF]

Small Sci
Green‐synthesized zinc oxide nanoparticles obtained via green‐combustion synthesis with Moringa oleifera leaves extract are incorporated into electrospun poly(caprolactone)/poly(ethylene oxide) (PCL/PEO) membranes for wound healing. The resulting composite exhibits enhanced hydrophilicity, high fluid absorption, excellent biocompatibility, and ...
Silveira R, Modolon HB, Chavarriaga EA, Lopera AA, Vieira JL, Soares MBP, Barbosa JDV, Angioletto E, Wermuth TB, Montedo ORK, Arcaro S.   +10 more
europepmc   +2 more sources

From Green to Brown: Characterization of the Fast Alteration of Modern Greenish Enamels in Glass Windows. [PDF]

Chempluschem
Spots and stains appeared on the modern green enamel from different stained‐glass windows as a consequence of environmental alteration. The multianalytical characterization showed a 3‐step alteration mechanism divided into Pb2+ lixiviation from the enamel, formation of hydrocerussite (2PbCO3·Pb(OH)2), and transformation into scrutinyite (α‐PbO2) and ...
Palomar T, Calatayud DG, Oujja M, Maestro-Guijarro L, Aparicio M, Mosa J, Koppermann B, Seliger L.   +7 more
europepmc   +2 more sources

Evaluación del comportamiento de vidrios lixiviados como nutrientes de algas

Boletín de la Sociedad Española de Cerámica y Vidrio, 2015
Se han preparado 3 vidrios con distinto contenido en SiO2 y de composición similar a los nutrientes necesarios para el crecimiento del alga Spirulina platensis.
Natalia Grabska, Aitana Tamayo, M. Alejandra Mazo, Luis Pascual, Juan Rubio   +4 more
doaj   +1 more source

Non isothermal kinetic study of the aluminium titanate formation in alumina-titania mixtures

Cerâmica, 2014
Aluminum titanate (Al2TiO5) is a high refractoriness material with excellent thermal shock resistance. Hence it is suitable for several applications at elevated temperatures where insulation and thermal shock resistance are required.
N. M. Rendtorff, G. Suárez, E. F. Aglietti   +2 more
doaj   +1 more source

Colloidal stability of Ni(OH)₂ in water and its dispersion into a ceramic matrix from the reaction media to obtain Ni/Al₂O₃ materials

Boletín de la Sociedad Española de Cerámica y Vidrio, 2014
Ni/Al₂O₃ composites have been fabricated by slip casting of concentrated Ni(OH)₂/Al₂O₃ suspensions and subsequent in situ reduction to metallic nickel during sintering.
Cabanas-Polo, S. , Ferrari, B. , Sánchez-Herencia, A. J.   +2 more
doaj   +1 more source

Influence of the design on the thermal response of press-fit diodes: An infrared thermographic study

Results in Physics, 2021
A critical effect in the field of the power semiconductors is their heating processes under high currents regime, in the order of amperes. The thermal characterization in working conditions is not always an easy task, and its over/underestimation can ...
A. Moure, A. Serrano, S. Román-Sánchez, I. Lorite, J.F. Fernández   +4 more
doaj   +1 more source

Stress dynamics during O-T phase transitions in lead-free KNN-based piezoelectric ceramics

Materials & Design, 2023
In this study, we have investigated the stress dynamics arising from the Orthorhombic-Tetragonal Polymorphic Phase Boundary (PPB) in lead-free potassium sodium niobate (KNN)-based ceramics and its temperature dependence, as a means to elucidate the ...
A. Moure, P. Val-Gómez, A. del Campo, J.F. Fernández, F. Rubio-Marcos   +4 more
doaj   +1 more source

Thermal conduction in three-dimensional printed porous samples by high resolution infrared thermography

Open Ceramics, 2020
The thermal conductivity (κ) is a key parameter that defines many of the technological uses of three-dimensional (3D) porous architectures. Despite the variety of methods for determining κ, problems generally arise when researchers try to apply them to ...
D. Muñoz Codorníu, J.J. Moyano, M. Belmonte, M.I. Osendi, P. Miranzo   +4 more
doaj   +1 more source

Thermal response of active Si in press-fit rectifier diodes by confocal Raman microscopy: Influence of diode design and technology

Journal of Materials Research and Technology, 2022
Overheating resulting from the circulation of high electric currents (in the order of tens of amperes) that some electronic devices undergo when they are in operation, can induce structural modifications such as mechanical stresses that could reduce ...
S. Román-Sánchez, A. Serrano, A. del Campo, I. Lorite, J.F. Fernández, A. Moure   +5 more
doaj   +1 more source

Relaciones microestructura-comportamiento mecánico en materiales de alúmina-hexaluminato cálcico

Revista de Metalurgia, 2001
Se ha modificado el hábito de crecimiento de grano en materiales densos de alúmina mediante la adición de hexaluminato calcico (CA6). Con objeto de obtener una óptima dispersión de la segunda fase, se han utilizado rutas coloidales de procesamiento.
A. J. Sánchez-Herencia, R. Moreno, C. Baudín   +2 more
doaj   +1 more source