The martensite phase of high-purity lithium

Wolfgang Pichl; Maciej Krystian; Markus Prem; Gerhard Krexner

doi:10.1051/jp4:20031073

Abstract

The low-temperature martensitic transformation of pure lithium is characterized by a complex phase diagram exhibiting the coexistence of several close-packed phases with the bcc matrix. On cooling, below the martensitic start temperature a long-range ordered 9R structure and a one-dimensionally disordered polytype phase are observed. On heating, an intermediate fcc phase appears in the hysteresis regime. Microstructure investigations, application of the crystallographic theory of martensite and thermal cycling during neutron scattering experiments together strongly indicate that fcc is the true thermal equilibrium phase. The 9R structure is a metastable phase which minimizes the lattice mismatch with respect to the bcc matrix and therefore is formed for geometrical reasons.

Originalsprache	Englisch
Seiten (von - bis)	1095-1098
Seitenumfang	4
Fachzeitschrift	Journal de Physique IV
Jahrgang	112
DOIs	https://doi.org/10.1051/jp4:20031073
Publikationsstatus	Veröffentlicht - Okt. 2003

ÖFOS 2012

1030 Physik, Astronomie

Zugriff auf Dokument

10.1051/jp4:20031073

Zitationsweisen

@article{f6ac89e9514e4106aa2a50199fbbba28,

title = "The martensite phase of high-purity lithium",

abstract = "The low-temperature martensitic transformation of pure lithium is characterized by a complex phase diagram exhibiting the coexistence of several close-packed phases with the bcc matrix. On cooling, below the martensitic start temperature a long-range ordered 9R structure and a one-dimensionally disordered polytype phase are observed. On heating, an intermediate fcc phase appears in the hysteresis regime. Microstructure investigations, application of the crystallographic theory of martensite and thermal cycling during neutron scattering experiments together strongly indicate that fcc is the true thermal equilibrium phase. The 9R structure is a metastable phase which minimizes the lattice mismatch with respect to the bcc matrix and therefore is formed for geometrical reasons.",

author = "Wolfgang Pichl and Maciej Krystian and Markus Prem and Gerhard Krexner",

note = "Zeitschrift: Journal De Physique. IV : JP Coden: JPICE Affiliations: Institut fur Materialphysik, Universitat Wien, Boltzmanngasse 5, 1090 Wien, Austria; Laboratoire Leon Brillouin, Centre d'Etudes Nucleaires de Saclay, 91191 Gif-sur-Yvette, France; Institut fur Experimentalphysik, Universitat Wien, Boltzmanngasse 5, 1090 Wien, Austria Adressen: Pichl, W.; Institut fur Materialphysik; Universitat Wien; Boltzmanngasse 5 1090 Wien, Austria Import aus Scopus: 2-s2.0-0242624789 04.12.2007: Datenanforderung 2001 (Import Sachbearbeiter)",

year = "2003",

month = oct,

doi = "10.1051/jp4:20031073",

language = "English",

volume = "112",

pages = "1095--1098",

journal = "Journal de Physique IV",

issn = "1155-4339",

publisher = "E D P Sciences",

}

TY - JOUR

T1 - The martensite phase of high-purity lithium

AU - Pichl, Wolfgang

AU - Krystian, Maciej

AU - Prem, Markus

AU - Krexner, Gerhard

N1 - Zeitschrift: Journal De Physique. IV : JP Coden: JPICE Affiliations: Institut fur Materialphysik, Universitat Wien, Boltzmanngasse 5, 1090 Wien, Austria; Laboratoire Leon Brillouin, Centre d'Etudes Nucleaires de Saclay, 91191 Gif-sur-Yvette, France; Institut fur Experimentalphysik, Universitat Wien, Boltzmanngasse 5, 1090 Wien, Austria Adressen: Pichl, W.; Institut fur Materialphysik; Universitat Wien; Boltzmanngasse 5 1090 Wien, Austria Import aus Scopus: 2-s2.0-0242624789 04.12.2007: Datenanforderung 2001 (Import Sachbearbeiter)

PY - 2003/10

Y1 - 2003/10

N2 - The low-temperature martensitic transformation of pure lithium is characterized by a complex phase diagram exhibiting the coexistence of several close-packed phases with the bcc matrix. On cooling, below the martensitic start temperature a long-range ordered 9R structure and a one-dimensionally disordered polytype phase are observed. On heating, an intermediate fcc phase appears in the hysteresis regime. Microstructure investigations, application of the crystallographic theory of martensite and thermal cycling during neutron scattering experiments together strongly indicate that fcc is the true thermal equilibrium phase. The 9R structure is a metastable phase which minimizes the lattice mismatch with respect to the bcc matrix and therefore is formed for geometrical reasons.

AB - The low-temperature martensitic transformation of pure lithium is characterized by a complex phase diagram exhibiting the coexistence of several close-packed phases with the bcc matrix. On cooling, below the martensitic start temperature a long-range ordered 9R structure and a one-dimensionally disordered polytype phase are observed. On heating, an intermediate fcc phase appears in the hysteresis regime. Microstructure investigations, application of the crystallographic theory of martensite and thermal cycling during neutron scattering experiments together strongly indicate that fcc is the true thermal equilibrium phase. The 9R structure is a metastable phase which minimizes the lattice mismatch with respect to the bcc matrix and therefore is formed for geometrical reasons.

U2 - 10.1051/jp4:20031073

DO - 10.1051/jp4:20031073

M3 - Meeting abstract/Conference paper

SN - 1155-4339

VL - 112

SP - 1095

EP - 1098

JO - Journal de Physique IV

JF - Journal de Physique IV

ER -

The martensite phase of high-purity lithium

Abstract

ÖFOS 2012

Zugriff auf Dokument

Fingerprint

Zitationsweisen