Hydrogen desorption from pure titanium with different concentration levels of hydrogen

Y. Furuya, Akito Takasaki, K. Mizuno, T. Yoshiie

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Hydrogen evolution behaviors for pure titanium plate samples, in which hydrogen has been thermally charged with gas phase hydrogen at a pressure of 0.1 MPa, were investigated by means of thermal desorption spectroscopy (TDS). Hydrogen concentration in the samples were varied from an extremely low level to a high one, as to form the hydride, by changing the charging times (up to 20 h) and temperatures (398-773 K). After hydrogen dissolution of low concentration level at the initial stage of the dissolution, four kinds of hydrogen evolution peaks were found at 850, 900-950, 1050 and 1150 K in TDS spectra. The hydride formation occurred abruptly at charging temperatures more than 680 K and at the hydrogen concentration level of more than 15-16 at.%, leading final hydrogen concentration of more than 47 at.% hydrogen. For the sample with high hydrogen concentration level as to form the hydride, another TDS peak at 750 K was observed in addition to that at 850 K. The sample hydrogenated evolved a large amount of hydrogen accompanying with a TDS peak from 550 to 900 K. The composition of the hydride was estimated to be TiHx (x:1.1).

Original languageEnglish
Pages (from-to)447-450
Number of pages4
JournalJournal of Alloys and Compounds
Volume446-447
DOIs
Publication statusPublished - 2007 Oct 31

Fingerprint

Titanium
Hydrogen
Desorption
Thermal desorption spectroscopy
Hydrides
Dissolution
Gases
Temperature

Keywords

  • Gas-solid reaction
  • Metal hydrides
  • Thermal analysis

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Hydrogen desorption from pure titanium with different concentration levels of hydrogen. / Furuya, Y.; Takasaki, Akito; Mizuno, K.; Yoshiie, T.

In: Journal of Alloys and Compounds, Vol. 446-447, 31.10.2007, p. 447-450.

Research output: Contribution to journalArticle

@article{037bfd6feb5342e68916d9fdc0e9489c,
title = "Hydrogen desorption from pure titanium with different concentration levels of hydrogen",
abstract = "Hydrogen evolution behaviors for pure titanium plate samples, in which hydrogen has been thermally charged with gas phase hydrogen at a pressure of 0.1 MPa, were investigated by means of thermal desorption spectroscopy (TDS). Hydrogen concentration in the samples were varied from an extremely low level to a high one, as to form the hydride, by changing the charging times (up to 20 h) and temperatures (398-773 K). After hydrogen dissolution of low concentration level at the initial stage of the dissolution, four kinds of hydrogen evolution peaks were found at 850, 900-950, 1050 and 1150 K in TDS spectra. The hydride formation occurred abruptly at charging temperatures more than 680 K and at the hydrogen concentration level of more than 15-16 at.{\%}, leading final hydrogen concentration of more than 47 at.{\%} hydrogen. For the sample with high hydrogen concentration level as to form the hydride, another TDS peak at 750 K was observed in addition to that at 850 K. The sample hydrogenated evolved a large amount of hydrogen accompanying with a TDS peak from 550 to 900 K. The composition of the hydride was estimated to be TiHx (x:1.1).",
keywords = "Gas-solid reaction, Metal hydrides, Thermal analysis",
author = "Y. Furuya and Akito Takasaki and K. Mizuno and T. Yoshiie",
year = "2007",
month = "10",
day = "31",
doi = "10.1016/j.jallcom.2007.04.304",
language = "English",
volume = "446-447",
pages = "447--450",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Hydrogen desorption from pure titanium with different concentration levels of hydrogen

AU - Furuya, Y.

AU - Takasaki, Akito

AU - Mizuno, K.

AU - Yoshiie, T.

PY - 2007/10/31

Y1 - 2007/10/31

N2 - Hydrogen evolution behaviors for pure titanium plate samples, in which hydrogen has been thermally charged with gas phase hydrogen at a pressure of 0.1 MPa, were investigated by means of thermal desorption spectroscopy (TDS). Hydrogen concentration in the samples were varied from an extremely low level to a high one, as to form the hydride, by changing the charging times (up to 20 h) and temperatures (398-773 K). After hydrogen dissolution of low concentration level at the initial stage of the dissolution, four kinds of hydrogen evolution peaks were found at 850, 900-950, 1050 and 1150 K in TDS spectra. The hydride formation occurred abruptly at charging temperatures more than 680 K and at the hydrogen concentration level of more than 15-16 at.%, leading final hydrogen concentration of more than 47 at.% hydrogen. For the sample with high hydrogen concentration level as to form the hydride, another TDS peak at 750 K was observed in addition to that at 850 K. The sample hydrogenated evolved a large amount of hydrogen accompanying with a TDS peak from 550 to 900 K. The composition of the hydride was estimated to be TiHx (x:1.1).

AB - Hydrogen evolution behaviors for pure titanium plate samples, in which hydrogen has been thermally charged with gas phase hydrogen at a pressure of 0.1 MPa, were investigated by means of thermal desorption spectroscopy (TDS). Hydrogen concentration in the samples were varied from an extremely low level to a high one, as to form the hydride, by changing the charging times (up to 20 h) and temperatures (398-773 K). After hydrogen dissolution of low concentration level at the initial stage of the dissolution, four kinds of hydrogen evolution peaks were found at 850, 900-950, 1050 and 1150 K in TDS spectra. The hydride formation occurred abruptly at charging temperatures more than 680 K and at the hydrogen concentration level of more than 15-16 at.%, leading final hydrogen concentration of more than 47 at.% hydrogen. For the sample with high hydrogen concentration level as to form the hydride, another TDS peak at 750 K was observed in addition to that at 850 K. The sample hydrogenated evolved a large amount of hydrogen accompanying with a TDS peak from 550 to 900 K. The composition of the hydride was estimated to be TiHx (x:1.1).

KW - Gas-solid reaction

KW - Metal hydrides

KW - Thermal analysis

UR - http://www.scopus.com/inward/record.url?scp=35148822848&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35148822848&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2007.04.304

DO - 10.1016/j.jallcom.2007.04.304

M3 - Article

AN - SCOPUS:35148822848

VL - 446-447

SP - 447

EP - 450

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -