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A New Reversible Phase Transformation of Intermetallic Ti(3)Sn

Ti(3)Sn has received increasing attention as a high damping metallic material and as an anode material for rechargeable lithium-ion batteries. However, a heated dispute concerning the existence of solid state phase transformation of stoichiometric Ti(3)Sn impedes its development. Here, thermal-induc...

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Autores principales: Du, Minshu, Cui, Lishan, Liu, Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695773/
https://www.ncbi.nlm.nih.gov/pubmed/31387287
http://dx.doi.org/10.3390/ma12152484
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author Du, Minshu
Cui, Lishan
Liu, Feng
author_facet Du, Minshu
Cui, Lishan
Liu, Feng
author_sort Du, Minshu
collection PubMed
description Ti(3)Sn has received increasing attention as a high damping metallic material and as an anode material for rechargeable lithium-ion batteries. However, a heated dispute concerning the existence of solid state phase transformation of stoichiometric Ti(3)Sn impedes its development. Here, thermal-induced reversible phase transformation of Ti(3)Sn is demonstrated to happen at around 300 K by the means of in-situ variable-temperature X-ray diffraction (XRD) of Ti(3)Sn powder, which is also visible for bulk Ti(3)Sn on the thermal expansion curve by a turning at 330 K. The new phase’s crystal structure of Ti(3)Sn is determined to be orthorhombic with a space group of Cmcm and the lattice parameters of a = 5.87 Å, b = 10.37 Å, c = 4.76 Å respectively, according to selected area electron diffraction patterns in transmission electron microscope (TEM) and XRD profiles. The hexagonal → orthorhombic phase transformation is calculated to be reasonable and consistent with thermodynamics theory. This work contributes to a growing knowledge of intermetallic Ti(3)Sn, which may provide fundamental insights into its damping mechanism.
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spelling pubmed-66957732019-09-05 A New Reversible Phase Transformation of Intermetallic Ti(3)Sn Du, Minshu Cui, Lishan Liu, Feng Materials (Basel) Article Ti(3)Sn has received increasing attention as a high damping metallic material and as an anode material for rechargeable lithium-ion batteries. However, a heated dispute concerning the existence of solid state phase transformation of stoichiometric Ti(3)Sn impedes its development. Here, thermal-induced reversible phase transformation of Ti(3)Sn is demonstrated to happen at around 300 K by the means of in-situ variable-temperature X-ray diffraction (XRD) of Ti(3)Sn powder, which is also visible for bulk Ti(3)Sn on the thermal expansion curve by a turning at 330 K. The new phase’s crystal structure of Ti(3)Sn is determined to be orthorhombic with a space group of Cmcm and the lattice parameters of a = 5.87 Å, b = 10.37 Å, c = 4.76 Å respectively, according to selected area electron diffraction patterns in transmission electron microscope (TEM) and XRD profiles. The hexagonal → orthorhombic phase transformation is calculated to be reasonable and consistent with thermodynamics theory. This work contributes to a growing knowledge of intermetallic Ti(3)Sn, which may provide fundamental insights into its damping mechanism. MDPI 2019-08-05 /pmc/articles/PMC6695773/ /pubmed/31387287 http://dx.doi.org/10.3390/ma12152484 Text en © 2019 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
Du, Minshu
Cui, Lishan
Liu, Feng
A New Reversible Phase Transformation of Intermetallic Ti(3)Sn
title A New Reversible Phase Transformation of Intermetallic Ti(3)Sn
title_full A New Reversible Phase Transformation of Intermetallic Ti(3)Sn
title_fullStr A New Reversible Phase Transformation of Intermetallic Ti(3)Sn
title_full_unstemmed A New Reversible Phase Transformation of Intermetallic Ti(3)Sn
title_short A New Reversible Phase Transformation of Intermetallic Ti(3)Sn
title_sort new reversible phase transformation of intermetallic ti(3)sn
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695773/
https://www.ncbi.nlm.nih.gov/pubmed/31387287
http://dx.doi.org/10.3390/ma12152484
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