Shear-driven instability in zirconium at high pressure and temperature and its relationship to phase-boundary behaviors

被引：10

作者：

Jacobsen, M. K. ^{[1
]}

Velisavljevic, N. ^{[1
]}

Kono, Y. ^{[2
]}

Park, C. ^{[2
]}

Kenney-Benson, C. ^{[2
]}

机构：

[1] Los Alamos Natl Lab, Shock & Detonat Phys M9, Los Alamos, NM 87545 USA

[2] Carnegie Inst Sci, Geophys Lab, HPCAT, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW B | 2017年 / 95卷 / 13期

关键词：

ELASTIC-MODULI; OMEGA-PHASE; TITANIUM; ALPHA; TRANSFORMATION; TRANSITIONS; STATE; ZR; COMPRESSION; PARAMETERS;

D O I：

10.1103/PhysRevB.95.134101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Evidence in support of a shear driven anomaly in zirconium at elevated temperatures and pressures has been determined through the combined use of ultrasonic, diffractive, and radiographic techniques. Implications that these have on the phase diagram are explored through thermoacoustic parameters associated with the elasticity and thermal characteristics. In particular, our results illustrate a deviating phase boundary between the a and. phases, referred to as a kink, at elevated temperatures and pressures. Further, pair distribution studies of this material at more extreme temperatures and pressures illustrate the scale on which diffusion takes place in this material. Possible interpretation of these can be made through inspection of shear-driven anomalies in other systems.

引用

页数：8

共 7 条

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