Buscar
Mostrando ítems 21-30 de 112
Sinterização de cerâmicas multiferróicas nanoestruturadas de Pb(Fe1/2Nb1/2)O3 e Pb(Fe2/3W1/3)O3 via Spark Plasma Sintering SPS
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2013-02-25)
Considering the search for miniaturization of electronic devices, the development of new methods and techniques for the production and characterization of nanostructured materials is fundamental, beyond understanding of ...
Compositional Design of Dielectric, Ferroelectric and Piezoelectric Properties of (K, Na)NbO3 and (Ba, Na)(Ti, Nb)O-3 Based Ceramics Prepared by Different Sintering Routes
(Mdpi Ag, 2016)
Lead free piezoelectric materials are being intensively investigated in order to substitute lead based ones, commonly used in many different applications. Among the most promising lead-free materials are those with modified ...
Estudo da substituição do cobalto pela liga Invar no metal duro com base em carbeto de tungstênio
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA MECÂNICA, 2020-01-27)
Cobalt is the most widely used binder in tungsten carbide (WC) -based hard metals
due to its properties, mainly wettability. However, this metal can cause toxicity problems,
and, in addition, it has a high production ...
Review: Effect on physical, mechanical, and wear performance of ZrB -based composites processed with or without additives
(2020-06-03)
Because of unique combination of properties, ultra high temperature ceramics (UHTCs) are considered the most suitable material for applications in extreme en-vironments as in hypersonic flights, atmospheric ...
Síntesis de hexaferrita de estroncio asistida por SPS (Spark Plasma Sintering)
(2013)
Presentamos un estudio sobre la síntesis de hexaferrita de estroncio tipo M (SrFe12O19)
activada mecánicamente mediante molienda de alta energía durante 5 h y asistida con Spark
Plasma Sintering (SPS) a temperatura ...