Influence of biaxial strain on thermodynamical properties of hydrogen in (001) oriented Mo/V superlattices

G. Reynaldsson; S. Olafsson; H. P. Gislason

doi:10.1016/S0925-8388(03)00270-6

Influence of biaxial strain on thermodynamical properties of hydrogen in (001) oriented Mo/V superlattices

G. Reynaldsson
, S. Olafsson
, H. P. Gislason

University of Iceland

Research output: Contribution to journal › Conference article › peer-review

Abstract

The influence of the strain state on the thermodynamics of hydrogen in quasi-two-dimensional V layers embedded in three Mo/V superlattices is reported in the temperature range 140-300°C. The enthalpy change in the two lower strained V layers was found to be low in the low concentration range and approached the disordered V bulk value through an attractive hydrogen-hydrogen (H-H) interaction. For the most strained V layer the enthalpy change was larger in the low concentration range and decreased with a repulsive H-H interaction. The entropy change for the hydrogen in the V layers in the three superlattices was found to be much higher than that for V bulk and approached the bulk β-phase value. This indicates a less energetically favourable interstitial site for the hydrogen to occupy.

Original language	English
Pages (from-to)	545-548
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	356-357
DOIs	https://doi.org/10.1016/S0925-8388(03)00270-6
Publication status	Published - 11 Aug 2003
Event	Proceedings of the Eight International Symposium on Metal Hyd (MH 2002) - Annecy, France Duration: 2 Sept 2002 → 6 Sept 2002

Other keywords

Resistance
Superlattices
Thermodynamics

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10.1016/S0925-8388(03)00270-6

Cite this

@article{048b0a5fc0de42ed9cf21557b3d34399,

title = "Influence of biaxial strain on thermodynamical properties of hydrogen in (001) oriented Mo/V superlattices",

abstract = "The influence of the strain state on the thermodynamics of hydrogen in quasi-two-dimensional V layers embedded in three Mo/V superlattices is reported in the temperature range 140-300°C. The enthalpy change in the two lower strained V layers was found to be low in the low concentration range and approached the disordered V bulk value through an attractive hydrogen-hydrogen (H-H) interaction. For the most strained V layer the enthalpy change was larger in the low concentration range and decreased with a repulsive H-H interaction. The entropy change for the hydrogen in the V layers in the three superlattices was found to be much higher than that for V bulk and approached the bulk β-phase value. This indicates a less energetically favourable interstitial site for the hydrogen to occupy.",

keywords = "Resistance, Superlattices, Thermodynamics",

author = "G. Reynaldsson and S. Olafsson and Gislason, \{H. P.\}",

year = "2003",

month = aug,

day = "11",

doi = "10.1016/S0925-8388(03)00270-6",

language = "English",

volume = "356-357",

pages = "545--548",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

note = "Proceedings of the Eight International Symposium on Metal Hyd (MH 2002) ; Conference date: 02-09-2002 Through 06-09-2002",

}

TY - JOUR

T1 - Influence of biaxial strain on thermodynamical properties of hydrogen in (001) oriented Mo/V superlattices

AU - Reynaldsson, G.

AU - Olafsson, S.

AU - Gislason, H. P.

PY - 2003/8/11

Y1 - 2003/8/11

N2 - The influence of the strain state on the thermodynamics of hydrogen in quasi-two-dimensional V layers embedded in three Mo/V superlattices is reported in the temperature range 140-300°C. The enthalpy change in the two lower strained V layers was found to be low in the low concentration range and approached the disordered V bulk value through an attractive hydrogen-hydrogen (H-H) interaction. For the most strained V layer the enthalpy change was larger in the low concentration range and decreased with a repulsive H-H interaction. The entropy change for the hydrogen in the V layers in the three superlattices was found to be much higher than that for V bulk and approached the bulk β-phase value. This indicates a less energetically favourable interstitial site for the hydrogen to occupy.

AB - The influence of the strain state on the thermodynamics of hydrogen in quasi-two-dimensional V layers embedded in three Mo/V superlattices is reported in the temperature range 140-300°C. The enthalpy change in the two lower strained V layers was found to be low in the low concentration range and approached the disordered V bulk value through an attractive hydrogen-hydrogen (H-H) interaction. For the most strained V layer the enthalpy change was larger in the low concentration range and decreased with a repulsive H-H interaction. The entropy change for the hydrogen in the V layers in the three superlattices was found to be much higher than that for V bulk and approached the bulk β-phase value. This indicates a less energetically favourable interstitial site for the hydrogen to occupy.

KW - Resistance

KW - Superlattices

KW - Thermodynamics

UR - https://www.scopus.com/pages/publications/0041696639

U2 - 10.1016/S0925-8388(03)00270-6

DO - 10.1016/S0925-8388(03)00270-6

M3 - Conference article

SN - 0925-8388

VL - 356-357

SP - 545

EP - 548

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

T2 - Proceedings of the Eight International Symposium on Metal Hyd (MH 2002)

Y2 - 2 September 2002 through 6 September 2002

ER -

Influence of biaxial strain on thermodynamical properties of hydrogen in (001) oriented Mo/V superlattices

Abstract

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