EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR

ABSTRACT In this paper, we present an approach and investigation on the evolution of the icosahedral and decagonal phases of quasicrystalline alloys Al62.2C25.3Fe12.5 E Al65Ni15Co20, the oxidation behavior in them. The quantification of the quasicrystalline and crystalline phases present in the quas...

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Autores principales:	Jamshidi,Lourdes Cristina Lucena Agostinho, Rodbari,Reza Jamshidi
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2018
Materias:	Quasicrystalline alloys phases icosahedral decagonal oxidation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072018000203928
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spelling	oai:scielo:S0717-970720180002039282018-07-19EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIORJamshidi,Lourdes Cristina Lucena AgostinhoRodbari,Reza Jamshidi Quasicrystalline alloys phases icosahedral decagonal oxidation ABSTRACT In this paper, we present an approach and investigation on the evolution of the icosahedral and decagonal phases of quasicrystalline alloys Al62.2C25.3Fe12.5 E Al65Ni15Co20, the oxidation behavior in them. The quantification of the quasicrystalline and crystalline phases present in the quasicrystals provides important information in the mass transport by diffusion, as well as the phase transformations that occurred. For this purpose, X-ray diffraction (XRD) and Rietveld Method Quantification, Scanning Electron Microscopy (SEM) / Dispersive Energy Spectroscopy (EDS), Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis). The results showed structural aspects of the two compositions of quasicrystals, these were elaborated and obtained in an arc induction furnace. The oxidation of the alloy Al62.2Cu25.3Fe12.5 showed intermetallic phases with associations of the elements of the alloy and above 735 °C was observed that the crystalline phase is stable in the icosahedral phase. The quasicrystals Al65Ni15Co20, with the interaction of oxygen, happens in the surface of symmetry 10 times plane perpendicular vector. The formation of a thin film of the aluminum oxide with a well ordered hexagonal shape structure, with a domain opposite the decagonal phase with lateral size at about 35 Å.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.63 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072018000203928en10.4067/s0717-97072018000203928
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Quasicrystalline alloys phases icosahedral decagonal oxidation
spellingShingle	Quasicrystalline alloys phases icosahedral decagonal oxidation Jamshidi,Lourdes Cristina Lucena Agostinho Rodbari,Reza Jamshidi EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR
description	ABSTRACT In this paper, we present an approach and investigation on the evolution of the icosahedral and decagonal phases of quasicrystalline alloys Al62.2C25.3Fe12.5 E Al65Ni15Co20, the oxidation behavior in them. The quantification of the quasicrystalline and crystalline phases present in the quasicrystals provides important information in the mass transport by diffusion, as well as the phase transformations that occurred. For this purpose, X-ray diffraction (XRD) and Rietveld Method Quantification, Scanning Electron Microscopy (SEM) / Dispersive Energy Spectroscopy (EDS), Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis). The results showed structural aspects of the two compositions of quasicrystals, these were elaborated and obtained in an arc induction furnace. The oxidation of the alloy Al62.2Cu25.3Fe12.5 showed intermetallic phases with associations of the elements of the alloy and above 735 °C was observed that the crystalline phase is stable in the icosahedral phase. The quasicrystals Al65Ni15Co20, with the interaction of oxygen, happens in the surface of symmetry 10 times plane perpendicular vector. The formation of a thin film of the aluminum oxide with a well ordered hexagonal shape structure, with a domain opposite the decagonal phase with lateral size at about 35 Å.
author	Jamshidi,Lourdes Cristina Lucena Agostinho Rodbari,Reza Jamshidi
author_facet	Jamshidi,Lourdes Cristina Lucena Agostinho Rodbari,Reza Jamshidi
author_sort	Jamshidi,Lourdes Cristina Lucena Agostinho
title	EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR
title_short	EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR
title_full	EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR
title_fullStr	EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR
title_full_unstemmed	EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR
title_sort	evolution of the phases of quasicrystalline alloys icosahedral/ decagonal al62.2cu25.3 fe12.5/al65ni15co20 and oxidative behavior
publisher	Sociedad Chilena de Química
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072018000203928
work_keys_str_mv	AT jamshidilourdescristinalucenaagostinho evolutionofthephasesofquasicrystallinealloysicosahedraldecagonalal622cu253fe125al65ni15co20andoxidativebehavior AT rodbarirezajamshidi evolutionofthephasesofquasicrystallinealloysicosahedraldecagonalal622cu253fe125al65ni15co20andoxidativebehavior
_version_	1714200924213215232

EVOLUTION OF THE PHASES OF QUASICRYSTALLINE ALLOYS ICOSAHEDRAL/ DECAGONAL Al62.2Cu25.3 Fe12.5/Al65Ni15Co20 AND OXIDATIVE BEHAVIOR

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