Hydrogen in HfTi2 alloy:: a formation of the hydrogen-stabilized HfTi2Hx phase with the C15-type host lattice

被引：10

作者：

Kozhanov, VN ^{[1
]}

Skripov, AV ^{[1
]}

Romanov, EP ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Sverdlovsk 620219, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 269卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

metal hydrides; alloys; X-ray diffraction;

D O I：

10.1016/S0925-8388(98)00132-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

X-ray diffraction study of the HfTi2Hx samples (0.5 less than or equal to x less than or equal to 5.95) obtained by hydrogenation of the disordered h.c.p. HfTi2 alloy has revealed the hydrogen-stabilized lambda phase with the ordered C15-type host lattice. The HfTi2Hx samples with x=4.0 and 4.5 are found to contain a single lambda phase. In the samples with 1.5 less than or equal to x less than or equal to 3.5 and 5.0 less than or equal to x less than or equal to 5.95 the lambda phase coexists with the solid solution (alpha) and the dihydride (gamma, delta) phases. The order parameter of the host-metal lattice in the lambda phase is found to increase with increasing H content. (C) 1998 Elsevier Science S.A.

引用

页码：141 / 143

页数：3

共 10 条

[1]

FINKEL VA, 1977, ZH EKSP TEOR FIZ+, V73, P2332

[2] HYDROGEN INDUCED DISORDER-ORDER TRANSITION IN PD3MN [J].

FLANAGAN, TB ;

CRAFT, AP ;

KUJI, T ;

BABA, K ;

SAKAMOTO, Y .

SCRIPTA METALLURGICA, 1986, 20 (12) :1745-1750

[3]

Goldschmidt H.J., 1967, Interstitial Alloys

[4] HYDROGEN CAUSED ORDERING IN PDAG ALLOY [J].

IRODOVA, AV ;

GLAZKOV, VP ;

SOMENKOV, VA ;

ANTONOV, VE ;

PONYATOVSKY, EG .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE NEUE FOLGE, 1989, 163 :53-57

[5]

MIRON NF, 1971, SOV PHYS CRYSTALLOGR, V16, P266

[6]

SHILOV AL, 1989, ZH FIZ KHIM+, V63, P1114

[7] THE PECULIARITIES OF THE BEHAVIOR OF HYDRIDE SYSTEMS RELATED TO MECHANISMS OF PHASE-TRANSITIONS [J].

SHILOV, AL ;

KUZNETSOV, NT .

JOURNAL OF THE LESS-COMMON METALS, 1989, 152 (02) :275-285

[8] PHASE-TRANSFORMATIONS IN THE HFV2-D SYSTEM [J].

SKRIPOV, AV ;

BELYAEV, MY ;

STEPANOV, AP ;

DOBROKHOTOVA, ZV ;

PADURETS, LN ;

SOKOLOVA, EI ;

SHILOV, AL .

JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 201 :145-149

[9] NMR-STUDY OF HYDROGEN MOTION IN HYDROGEN-STABILIZED C15-TYPE COMPOUNDS ZRTI2HX [J].

SKRIPOV, AV ;

RYCHKOVA, SV ;

BELYAEV, MY ;

STEPANOV, AP .

SOLID STATE COMMUNICATIONS, 1989, 71 (12) :1119-1122

[10]

SOKOLOVA EI, 1988, ZH NEORG KHIM+, V33, P275

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