Results 11 to 20 of about 86 (83)
Uniones de nitruro de silicio. Superaleaciones
Industrial applications of silicon nitride materials are limited by the difficulty and cost of making complex shapes. In the present work, the use of some superalloys as bonding interlayer between two silicon nitride pieces has been investigated.
Barea, R., Miranzo, P., Osendi, M. I.
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Ceramics based on silicon nitride have unusual physical and mechanical properties that make them materials of technological importance for their use as structural material.
Alcalá, M. D., Real, C., Criado, J. M.
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Interacción químico entre nitruros de silicio y aleaciones de acero
Los experimentos de difusion metal/ceramica permiten estudiar mecanismos de union y analizar el efecto de la composicion del metal en el desgaste quimico de herramientas de corte ceramicas. En este trabajo se investigo la cinetica de reaccion en pares de difusion aleaciones de Fe/Si3N4 a temperaturas entre 1050oC-1250oC, tiempos entre 0.5h a 80h, en ...
F. J. Oliveira +2 more
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Estudio de la preparación de nitruro de silicio [PDF]
El objetivo de este estudio es contribuir a la preparación de Si<sub>3</sub>N<sub>4</sub>, mediante el estudio cinético del sistema Si-N<sub>2</sub>, en escala de laboratorio. Este estudio permitirá predecir aspectos vinculados al diseño de reactores para la producción de Si<sub>3</sub>N<sub>4< ...
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Reflectores de Sagnac reconfigurables en tecnología de Nitruro de Silicio
In this work, a reconfigurable Sagnac reflectometer to use as a tunable mirror has been modelled, designed and tested. To make this device, two Mach-Zehnder configurations have been fed back, with one input or with two inputs. They have been described mathematically for their ideal theoretical analysis and the Mach-Zehnder has been compared with Sagnac
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Obtención de Si3N4 mediante SHS
In the present paper results obtained during synthesis of Silicon Nitride by Self-propagating High-temperature Synthesis (SHS) are shown. Self-propagating High-temperature Synthesis is based on the high enthalpy of certain reactions able to be self ...
Rodríguez, M. A., Cano, I. G.
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The tribological behaviour of various Si3N4 based materials, including Si3N4/SiC composites, has been analysed from room temperature up to 700ºC, and for sliding speeds between 0.5 and 2 m/s.
Silva, R. F. +4 more
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Diseño de un acoplador direccional asimétrico combinando silicio y nitruro de silicio
[EN] The objective of the master's thesis is to carry out the design of an asymmetric directional coupler in silicon and silicon nitride photonic technology. Such a configuration would help to improve the switching efficiency in hybrid structures formed by silicon and new materials.
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Identification by force modulation microscopy of nanoparticles generated in vacuum arcs
En este trabajo se presenta un método alternativo basado en microscopia de modulación de fuerza (FMM), para la identificación de nanogotas producidas en el plasma generado por los spots catódicos de los arcos en vacío.
Mauricio Arroyave Franco
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Multicapas de TiN/TiAlN (nitruro de titanio/nitruro de titanio aluminio) se depositaron por la técnica de la pulverización catódica d.c. reactiva utilizando blancos de titanio y de aluminio de 10 cm de diámetro, con una pureza de 99,9%, en una atmósfera ...
Gilberto Bejarano +2 more
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