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Mostrando ítems 161-170 de 426
Artículo
Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow
(Hindawi Publishing Corporation, 2014)
The production of high hardness and thermally stable nanocrystalline aluminium composites is described. Al powder was milled at room temperature in an ammonia flow for a period of less than 5 h. NH3 dissociation during ...
Artículo
Strength and reliability of WC-Co cemented carbides: Understanding microstructural effects on the basis of R-curve behavior and fractography
(Elsevier, 2018)
Strength and reliability of WC-Co cemented carbides (hardmetals) are dependent on effective fracture toughness as well as on nature, size and distribution of processing flaws. Regarding toughness, they exhibit a crack ...
Artículo
Development of highly efficient cost-effective CdS/Ag nanocomposite for removal of azo dyes under UV and solar light
(Elsevier, 2023-03)
Water pollution by toxic dyes is an environmental problem that threatens human health. A green technology to solve this problem is the use of highly efficient photocatalysts under visible/solar light to degrade these organic ...
Artículo
Thermal Modeling of the Port on a Refining Furnace to Prevent Copper Infiltration and Slag Accretion
(MDPI, 2021-11)
Fire refining of blister copper is a singular process at very high temperatures (~1400 K), which means the furnace is exposed to heavy thermal loads. The charge is directly heated by an internal burner. The impurities in ...
Artículo
El estado metálico
(Ediciones Metyel, 1978-02)
Artículo
Obtención y procesado de aleaciones de grano ultrafino, nanométrico y amorfas mediante aleado mecánico
(Centro nacional de Investigaciones Metalurgicas, 2007)
El Grupo de Metalurgia e Ingeniería de los Materiales de la Universidad de Sevilla ha desarrollado, durante los últimos quince años, diversas técnicas para la consolidación de aleaciones de aluminio obtenidas por aleado ...
Artículo
Mechanical alloying and amorphization of Ti75Cu25 alloy
(Elsevier, 2022)
Ti-Cu alloys are used in dental and medical applications, due to their good mechanical properties, corrosion resistance and antibacterial properties. These properties are sensitive to microstructure and can be improved by ...
Patente
Procedimiento de fabricación de material metálico de alta porosidad en condiciones de imponderabilidad
(Oficina Española de Patentes y Marcas , 2014-10-13)
Esta invención propone un nuevo procedimiento de fabricación de material metálico de alta porosidad, partiendo de una masa de polvos en condiciones de imponderabilidad. La consolidación de la estructura particular se realiza ...
Artículo
Induced damage during STEM-EELS analyses on acrylic-based materials for Stereolithography
(Elsevier, 2022-09)
(Scanning) transmission electron microscopy, (S)TEM, offers a powerful characterization tool based on electron-matter interactions, highly valuable in materials science. However, the possible electron beam induced damage ...
Artículo
Use of Impedance Spectroscopy for the Characterization of In-Vitro Osteoblast Cell Response in Porous Titanium Bone Implants
(MDPI, 2020-08)
The use of titanium implants with adequate porosity (content, size and morphology) could solve the stress shielding limitations that occur in conventional titanium implants. Experiments to assess the cellular response ...