Unexpectedly large relaxation time determined by in situ high-frequency shear modulus measurements near the glass transition of bulk glassy Pd40Cu30Ni10P20

被引：12

作者：

Khonik, V. A. ^{[1
,2
]}

Mitrofanov, Yu. P. ^{[1
]}

Khonik, S. V. ^{[2
]}

Saltykov, S. N. ^{[2
]}

机构：

[1] Voronezh State Pedag Univ, Dept Gen Phys, Voronezh 394043, Russia

[2] Voronezh State Univ, Voronezh 394006, Russia

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2010年 / 356卷 / 23-24期

基金：

俄罗斯基础研究基金会;

关键词：

metallic glasses; shear modulus; viscosity; relaxation time; AMORPHOUS-ALLOYS; FORMING LIQUIDS; TEMPERATURE; VISCOSITY; MELT;

D O I：

10.1016/j.jnoncrysol.2010.04.001

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High-precision in situ isothermal measurements of 550 kHz shear modulus G of bulk glassy Pd40Cu30Ni10P20 slightly below and above the glass transition temperature have been performed. It has been found, contrary to the expectation, that the observed relaxation time exceeds by 20-45 times the Maxwell relaxation time tau(m) = eta/G calculated using independent G and shear viscosity eta data. It has been concluded that tau(m) may not serve as a universal time scale for different relaxation processes in supercooled liquid and glassy states. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1191 / 1193

页数：3

共 17 条

[1] Colloquium: The glass transition and elastic models of glass-forming liquids [J].

Dyre, Jeppe C. .

REVIEWS OF MODERN PHYSICS, 2006, 78 (03) :953-972

[2] Evidence of distributed interstitialcy-like relaxation of the shear modulus due to structural relaxation of metallic glasses [J].

Khonik, S. V. ;

Granato, A. V. ;

Joncich, D. M. ;

Pompe, A. ;

Khonik, V. A. .

PHYSICAL REVIEW LETTERS, 2008, 100 (06)

[3] Usual stress relaxation in an 'unusual' Pd40Cu40P20 metallic glass [J].

Khonik, V. A. ;

Nguen, N. T. N. ;

Khonik, S. V. ;

Lysenko, A. V. ;

Khoviv, D. A. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2009, 355 (43-44) :2175-2178

[4] Recovery of structural relaxation in aged metallic glass as determined by high-precision in situ shear modulus measurements [J].

Khonik, V. A. ;

Mitrofanov, Yu. P. ;

Lyakhov, S. A. ;

Khoviv, D. A. ;

Konchakov, R. A. .

JOURNAL OF APPLIED PHYSICS, 2009, 105 (12)

[5] Viscosity of glass forming alloys based on Fe-Si-B system [J].

Lad'yanov, V. I. ;

Bel'tyukov, A. L. ;

Maslov, V. V. ;

Shishmarin, A. I. ;

Vasin, M. G. ;

Nosenko, V. K. ;

Mashira, V. A. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2007, 353 (32-40) :3264-3268

[6] The mysterious glass transition [J].

Langer, James .

PHYSICS TODAY, 2007, 60 (02) :8-9

[7] Bulk metallic glasses [J].

Löffler, JF .

INTERMETALLICS, 2003, 11 (06) :529-540

[8] EFFECT OF MELT TEMPERATURE ON THE ELECTRICAL-RESISTIVITY AND CRYSTALLIZATION TEMPERATURE OF AL91LA5NI4 AND AL91CE5NI4 AMORPHOUS-ALLOYS [J].

MANOV, V ;

RUBSHTEIN, A ;

VORONEL, A ;

POPEL, P ;

VERESHAGIN, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 179 :91-96

[9]

Maxwell J. C., 1867, Philos. Trans. R. Soc. London, V157, P49

[10] Isothermal kinetics and relaxation recovery of high-frequency shear modulus in the course of structural relaxation of Pd40Cu30Ni10P20 bulk glass [J].

Mitrofanov, Yu. P. ;

Khonik, V. A. ;

Vasil'ev, A. N. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2009, 108 (05) :830-835

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