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Materias / palabras clave: Física; Investigación; Cuba; Physics; Research; Fisica; Investigacion

Introduction and aims: Additive manufacturing technology has the potential to produce accurate restorations in the field of prosthodontics. This in vitro study aimed to investigate the dimensional accuracy and marginal a...

Geopolymers are known for its high compressive but low tensile strength due to its brittle nature, which restricts the use of geopolymers as structural material. It is important to enhance their mechanical performance by...

Objectives: To compare the effects of airborne-particle abrasion (APA) and tribochemical silica coating (TSC) surface treatment methods on the shear bond strength of zirconia ceramics systems, resin cements and tooth sur...

Objectives: To investigate the monotonic and fatigue strength of 3D-printed 5 mol% yttria partially stabilized zirconia (5Y-PSZ) and the influences of printing layer orientation and finishing protocol. Methods: Bar-shape...

The morphology of titanium, zirconium, and hafnium nanofilms deposited onto zirconia after annealing in vacuum at 1400, 1500, and 1600°C was studied. Nanofilms show a tendency to fragmentation; for titanium it begins at...

Palladium and cobalt bimetallic catalysts supported on sulfated zirconia (PdCo/SZ), obtained from different precursors of Pd (nitrate and acetylacetonate), were prepared to study their influence on the selective reductio...

Abstract Background Various designs of dental implants made of zirconium dioxide (zirconia) as an alternative to titanium implants are available as one-piece implant (OPI) or as bone-level or tissue-level two-piece impla...

In this study, hydroxyapatite and 3 mol. % yttria stabilized zirconia–hydroxyapatite (YSZ–HAp) composites were synthesized using the co-precipitation method. The composites were produced with 1, 4, and 7 wt. % of...

Telescopic overdenture is one type of removable denture that uses dual coping system that consists of primary and secondary coping. Retention of telescopic overdenture is obtained from the friction between primary and se...

Tesis de Doctorado En esta tesis se desarrollaron superficies antibacterianas activadas por luz, fabricadas utilizando películas delgadas de zirconia mesoporosa infiltradas con nanopartículas metálicas, específicamen...

Los materiales del sistema Al2O3-SiO2-ZrO2 son de interés tecnológico debido principalmente a sus propiedades térmicas, mecánicas y baja reactividad química. Uno de los comportamientos que limitan el uso de este tip...

No se posee. Ingeniero Químico Universidad Nacional de La Plata

Es posible recurrir a la pulvimetalurgia, llamada también metalurgia de polvos, y al proceso sol-gel para obtener materiales compuestos de matriz de aluminio. Este método comienza con la compactación de polvo de alumi...

Abstract Background This in vitro study aims to evaluate the effects of two different surface finishing procedures-glazing and polishing-on the stability of colour, the translucency, and the roughness of surface with thr...

Zirconia (ZrO2) is of great importance as a support for systems where high ionic conductivity and mechanical stability are required. Doping/defects have a significant effect on the physical properties of this oxide by st...

The kinetics of dispersion of thin niobium-copper films deposited onto leucosapphire, alumina and zirconia ceramics and annealed in vacuum at temperatures up to 1100 °C with different exposition times at each temperatur...

The parabens, alkylic esters of p-hydroxybenzoic acid, were synthesized using trifluoromethanesulfonic acid immobilized on zirconium oxide (zirconia) as catalyst. The oxide was obtained by the sol–gel method, using ure...