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Microwave synthesis of ultra-high temperature ceramic ZrC nanopowders
(Elsevier Science, 2019-07)
Ultra-high temperature ceramic zirconium carbide (ZrC) nanopowders were synthesized for the first time via a microwave-assisted carbothermal reduction reaction using zirconia (ZrO 2 ) and carbon black (C) as the starting ...
Synthesis and characterization of sol-gel derived ZrB2-ZrC compounds
(Hanyang University PressSeul, 2014)
In this work ZrB2-ZrC compounds were prepared by sol-gel process. These materials were examined by X-ray diffraction
(XRD), thermogravimetric (TG) analysis, laser granulometry, scanning electron microscopy (SEM), energy ...
Estrategias de territorialización campesina: encrucijadas entre el reconocimiento político y la autonomía territorial: constitución y funcionamiento de dos zonas de reserva campesina en Colombia
(Universidade Estadual Paulista (Unesp), 2016-10-14)
Esta pesquisa teve como objetivo compreender o processo de construção de territórios camponeses nas denominadas Zonas de Reserva Camponesa (ZRC) na Colômbia; e seu potencial para garantir a existência de território camponês ...
Theoretical analysis of the adsorption of ammonia–borane and their dehydrogenation products on the (001) surface of TiC and ZrC
(Elsevier B.V., 2019)
© 2018 Elsevier B.V.The adsorption of ammonia–borane (AB) over the (001) surface of TiC and ZrC, has been studied systematically by means of periodic-boundary density functional calculations using slab models. We present ...
Zonas de Reserva Campesina (ZRC) como instrumentos de Conservación Basada en Comunidades (CBC) y justicia socioambiental
(Universidad de los AndesMaestría en Estudios Interdisciplinarios sobre DesarrolloCentro Interdisciplinario de Estudios sobre Desarrollo, 2020)
La decisión sobre los límites de las áreas protegidas en Colombia no solo obedece a factores ambientales, sino que corresponde, sobre todo, a decisiones políticas sobre conservación y sobre los modelos de desarrollo en los ...