Results 21 to 30 of about 126,890 (165)
Stress dynamics during O-T phase transitions in lead-free KNN-based piezoelectric ceramics
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 +4 more
doaj +1 more source
Maghemite nanoparticles functionalized with doxorubicin enable synergistic chemo‐magneto‐photothermal therapy. Combining pH‐sensitive drug release with localized heating at clinically relevant low doses enhances tumor cell death while minimizing toxicity.
Rosalía López‐Méndez +11 more
wiley +2 more sources
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 +4 more
doaj +1 more source
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 +5 more
doaj +1 more source
Structural Changes by Thermal Treatment up to Glass Obtention of P2O5-Na2O-CaO-SiO2 Compounds with Bioglass Composition Types [PDF]
P2O5-Na2O-CaO-SiO2 compounds are the base of certain glass types. Glasses are solids obtained by fast cooling of melted mix of certain compounds.
Stábile, Franco Matías +1 more
core +1 more source
Relaciones microestructura-comportamiento mecánico en materiales de alúmina-hexaluminato cálcico
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 +2 more
doaj +1 more source
The main role of the ZrO2–MgO–CaO and ZrO2–MgO–CaO–SiO2 systems in the field of refractories
The increasing severity of the working conditions of refractories together with the necessity of available and economically feasible raw materials have changed the design approaches towards materials experiencing “in situ” modifications during use.The ...
Carmen Baudín, Pilar Pena
doaj +1 more source
Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
Dense aluminum borate (Al18B4O33) materials were processed by simple milling-sintering of aluminum borate powders obtained by reacting calcined alumina and fine boric acid at temperatures of around 600–800ºC.
M.F. Hernández +5 more
doaj +1 more source
Fuel effect on solution combustion synthesis of Co(Cr,Al)2O4 pigments
The fuel effect on the synthesis of a ceramic pigment with a composition CoCr2−2ΨAl2ΨO4 (0 ≤ Ψ ≤ 1) by means of solution combustion synthesis process (SCS) has been studied.
Jessica Gilabert +3 more
doaj +1 more source
Ofiuroideos del Cretácico Inferior de Patagonia: primer registro fósil articulado para el Mesozoico de América del Sur [PDF]
The first articulated remains of ophiuroids for the Mesozoic of South America are described from the Lower Cretaceous of Neuquén Basin, Argentina.
Comerio, Marcos +6 more
core +2 more sources

