Structural and hyperfine properties of Ti48Zr7Fe 18 nano-compounds and its hydrides

A. Ywczak; L. Gondek; H. Figiel; J. Ukrowski; J. Czub; A. Takasaki

doi:10.1016/j.jallcom.2010.12.186

Structural and hyperfine properties of Ti₄₈Zr₇Fe ₁₈ nano-compounds and its hydrides

A. Ywczak, L. Gondek, H. Figiel, J. Ukrowski, J. Czub, A. Takasaki

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

It is well established that Ti-based nano-alloys are able to absorb hydrogen with relatively high hydrogen to metal ratio of 4/3. In this study the Ti₄₈Zr₇Fe₁₈ nano-compound, prepared by mechanical alloying (MA), has been investigated. In its initial state the compound is amorphous, however upon thermal treatment it transforms to the quasicrystalline icosahedral structure (i-phase), which is based on the Mackay cluster type. Structural characterization of the sample was made by means of XRD measurements. Thermodynamic properties were studied by differential scanning calorimetry (DSC) and thermal desorption spectroscopy (TDS). To find the influence of hydrogen and structure type on hyperfine interactions the Mössbauer spectroscopy (MS) experiment was performed, as well. The amorphous sample after MA was hydrogenated in order to unveil hydrogen influence on crystal properties of the sample. Upon hydrogenation of the amorphous sample a decomposition into simple hydrides took place.

Original language	English
Pages (from-to)	3952-3957
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	9
DOIs	https://doi.org/10.1016/j.jallcom.2010.12.186
Publication status	Published - 2011 Mar 3

Keywords

Disordered systems
Quasicrystals
Thermodynamic properties
X-ray scattering

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2010.12.186

Cite this

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title = "Structural and hyperfine properties of Ti48Zr7Fe 18 nano-compounds and its hydrides",

abstract = "It is well established that Ti-based nano-alloys are able to absorb hydrogen with relatively high hydrogen to metal ratio of 4/3. In this study the Ti48Zr7Fe18 nano-compound, prepared by mechanical alloying (MA), has been investigated. In its initial state the compound is amorphous, however upon thermal treatment it transforms to the quasicrystalline icosahedral structure (i-phase), which is based on the Mackay cluster type. Structural characterization of the sample was made by means of XRD measurements. Thermodynamic properties were studied by differential scanning calorimetry (DSC) and thermal desorption spectroscopy (TDS). To find the influence of hydrogen and structure type on hyperfine interactions the M{\"o}ssbauer spectroscopy (MS) experiment was performed, as well. The amorphous sample after MA was hydrogenated in order to unveil hydrogen influence on crystal properties of the sample. Upon hydrogenation of the amorphous sample a decomposition into simple hydrides took place.",

keywords = "Disordered systems, Quasicrystals, Thermodynamic properties, X-ray scattering",

author = "A. Ywczak and L. Gondek and H. Figiel and J. Ukrowski and J. Czub and A. Takasaki",

note = "Funding Information: A part of this study was supported by the European Commission (project Dev–BIOSOFC, FP6-042436, MTKD–CT-2006-042436). The authors would like to thank MSc A. Gruszczy{\'n}ski (AGH-UST) for EDS and SEM investigations. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

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AU - Ywczak, A.

AU - Gondek, L.

AU - Figiel, H.

AU - Ukrowski, J.

AU - Czub, J.

AU - Takasaki, A.

N1 - Funding Information: A part of this study was supported by the European Commission (project Dev–BIOSOFC, FP6-042436, MTKD–CT-2006-042436). The authors would like to thank MSc A. Gruszczyński (AGH-UST) for EDS and SEM investigations. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2011/3/3

Y1 - 2011/3/3

N2 - It is well established that Ti-based nano-alloys are able to absorb hydrogen with relatively high hydrogen to metal ratio of 4/3. In this study the Ti48Zr7Fe18 nano-compound, prepared by mechanical alloying (MA), has been investigated. In its initial state the compound is amorphous, however upon thermal treatment it transforms to the quasicrystalline icosahedral structure (i-phase), which is based on the Mackay cluster type. Structural characterization of the sample was made by means of XRD measurements. Thermodynamic properties were studied by differential scanning calorimetry (DSC) and thermal desorption spectroscopy (TDS). To find the influence of hydrogen and structure type on hyperfine interactions the Mössbauer spectroscopy (MS) experiment was performed, as well. The amorphous sample after MA was hydrogenated in order to unveil hydrogen influence on crystal properties of the sample. Upon hydrogenation of the amorphous sample a decomposition into simple hydrides took place.

AB - It is well established that Ti-based nano-alloys are able to absorb hydrogen with relatively high hydrogen to metal ratio of 4/3. In this study the Ti48Zr7Fe18 nano-compound, prepared by mechanical alloying (MA), has been investigated. In its initial state the compound is amorphous, however upon thermal treatment it transforms to the quasicrystalline icosahedral structure (i-phase), which is based on the Mackay cluster type. Structural characterization of the sample was made by means of XRD measurements. Thermodynamic properties were studied by differential scanning calorimetry (DSC) and thermal desorption spectroscopy (TDS). To find the influence of hydrogen and structure type on hyperfine interactions the Mössbauer spectroscopy (MS) experiment was performed, as well. The amorphous sample after MA was hydrogenated in order to unveil hydrogen influence on crystal properties of the sample. Upon hydrogenation of the amorphous sample a decomposition into simple hydrides took place.

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