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Mostrando ítems 11-20 de 21
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
Bioactive Coatings on Porous Titanium for Biomedical Applications
(Elsevier, 2018)
Commercial pure titanium is a recognized and accepted material for cortical bone tissue substitution. However, stress-shielding phenomena and lack of osseointegration result in significant limitations. This work is focused ...
Patente. Invención
Blanco sólido de gases nobles para reacciones nucleares
(Oficina Española de Patentes y Marcas (OEPM), 2018-10-10)
Blanco sólido de gases nobles para reacciones nucleares. Constituye un objeto de la presente invención un blanco sólido de gases nobles para reacciones nucleares que comprende una película porosa de un material que ...
Artículo
Engineering of III-Nitride Semiconductors on Low Temperature Co-fired Ceramics
(Nature Publishing Group, 2018)
This work presents results in the feld of advanced substrate solutions in order to achieve high crystalline quality group-III nitrides based heterostructures for high frequency and power devices or for sensor applications. ...
Artículo
Microstructural and XRD analysis and study of the properties of the system Ti-TiAl-B4C processed under different operational conditions
(MDPI, 2018)
High specific modulus materials are considered excellent for the aerospace industry. The system Ti-TiAl-B4C is presented herein as an alternative material. Secondary phases formed in situ during fabrication vary depending ...
Artículo
In Situ Synthesis of Al-Based MMCs Reinforced with AlN by Mechanical Alloying under NH3 Gas
(MDPI, 2018)
Aluminum matrix composites (AMCs) reinforced by aluminum nitride were prepared by mechanical alloying followed by a simple press and sintering method. Milling began under vacuum and after a period of between 1 and 4 h, ...
Artículo
Medium-frequency electrical resistance sintering of oxidized C.P. iron powder
(MDPI, 2018)
Commercially pure (C.P.) iron powders with a deliberate high degree of oxidation were consolidated by medium-frequency electrical resistance sintering (MF-ERS). This is a consolidation technique where pressure, and heat ...
Artículo
Influence of temperature on the biaxial strength of cemented carbides with different microstructures
(Elsevier, 2018)
The effect of the temperature on the mechanical strength of WC-Co cemented carbides with different microstructures (grain size and binder content) was evaluated. Biaxial flexural tests were performed on three cemented ...
Artículo
Strong activation effect on a ru-co-c thin film catalyst for the hydrolysis of sodium borohydride
(2018)
In this work, we prepared a series of Ni foam supported Ru-Co, Ru-Co-B and Ru-Co-C catalysts in the form of columnar thin films by magnetron sputtering for the hydrolysis of sodium borohydride. We studied the activity and ...
Artículo
Improvement of the balance between a reduced stress shielding and bone ingrowth by bioactive coatings onto porous titanium substrates
(Elsevier, 2018-03)
Commercial pure titanium is known as good substitute for cortical bone tissue. Nevertheless, stress-shielding and the lack of osseointegration are still some limitations to solve. In this study, porous titanium substrates ...