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TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization
TiAl(3) and TiN composite nanoparticles were continuously synthesized from Ti–48Al master alloy by hydrogen plasma-metal reaction in a N(2), H(2) and Ar atmosphere. The phase, morphology, and size of the nanoparticles were studied by X-ray diffraction (XRD) and transmission electronic microscopy (TE...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5302617/ https://www.ncbi.nlm.nih.gov/pubmed/28335229 http://dx.doi.org/10.3390/nano6060101 |
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author | Li, Ju Ying Mei, Qing Song |
author_facet | Li, Ju Ying Mei, Qing Song |
author_sort | Li, Ju Ying |
collection | PubMed |
description | TiAl(3) and TiN composite nanoparticles were continuously synthesized from Ti–48Al master alloy by hydrogen plasma-metal reaction in a N(2), H(2) and Ar atmosphere. The phase, morphology, and size of the nanoparticles were studied by X-ray diffraction (XRD) and transmission electronic microscopy (TEM). X-ray photoelectron spectroscopy (XPS) and evolved gas analysis (EGA) were used to analyze the surface phase constitution and oxygen content of the nanoparticles. The as-synthesized nanopowders were mainly composed of nearly spherical TiAl(3) and tetragonal TiN phases, with a mean diameter of ~42 nm and mass fractions of 49.1% and 24.3%, respectively. Passivation in the atmosphere of Ar and O(2) for 24 h at room temperature led to the formation of amorphous Al(2)O(3) shells on the TiAl(3) particle surface, with a mean thickness of ~5.0 nm and a mass fraction of ~23.5%, as well as TiO(2) with a mass fraction of ~3.2%. |
format | Online Article Text |
id | pubmed-5302617 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-53026172017-03-21 TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization Li, Ju Ying Mei, Qing Song Nanomaterials (Basel) Article TiAl(3) and TiN composite nanoparticles were continuously synthesized from Ti–48Al master alloy by hydrogen plasma-metal reaction in a N(2), H(2) and Ar atmosphere. The phase, morphology, and size of the nanoparticles were studied by X-ray diffraction (XRD) and transmission electronic microscopy (TEM). X-ray photoelectron spectroscopy (XPS) and evolved gas analysis (EGA) were used to analyze the surface phase constitution and oxygen content of the nanoparticles. The as-synthesized nanopowders were mainly composed of nearly spherical TiAl(3) and tetragonal TiN phases, with a mean diameter of ~42 nm and mass fractions of 49.1% and 24.3%, respectively. Passivation in the atmosphere of Ar and O(2) for 24 h at room temperature led to the formation of amorphous Al(2)O(3) shells on the TiAl(3) particle surface, with a mean thickness of ~5.0 nm and a mass fraction of ~23.5%, as well as TiO(2) with a mass fraction of ~3.2%. MDPI 2016-06-01 /pmc/articles/PMC5302617/ /pubmed/28335229 http://dx.doi.org/10.3390/nano6060101 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Li, Ju Ying Mei, Qing Song TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization |
title | TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization |
title_full | TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization |
title_fullStr | TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization |
title_full_unstemmed | TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization |
title_short | TiAl(3)-TiN Composite Nanoparticles Produced by Hydrogen Plasma-Metal Reaction: Synthesis, Passivation, and Characterization |
title_sort | tial(3)-tin composite nanoparticles produced by hydrogen plasma-metal reaction: synthesis, passivation, and characterization |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5302617/ https://www.ncbi.nlm.nih.gov/pubmed/28335229 http://dx.doi.org/10.3390/nano6060101 |
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