Anharmonicity in Noble Metals; Higher Order Elastic Constants

Hiki, Yoshiyuki; Granato, A. V.

doi:10.1103/physrev.144.411

Cited by 368 publications

(132 citation statements)

References 31 publications

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“…The reduced modulus of Cu as a function of temperature as measured by nanoindentation is shown in Figure 11B. With no prior nanoindentation data to compare with, here we again calculate reduced modulus values from acoustic measurements taken on pure single-crystal Cu 68,70,[80][81][82][83][84][85][86] . Both sets of data show a decrease in reduced modulus with temperature and match to within experimental errors and uncertainties; the slope of the data is -0.04 GPa K -1 .…”

Section: Coppermentioning

confidence: 99%

Hot nanoindentation in inert environments

Trenkle

Packard

Schuh

2010

Review of Scientific Instruments

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An instrument capable of performing nanoindentation at temperatures up to 500 o C in inert atmospheres, including partial vacuum and gas near atmospheric pressures, is described.Technical issues associated with the technique (such as drift and noise) and the instrument (such as tip erosion and radiative heating of the transducer) are identified and addressed. Based on these considerations, preferred operation conditions are identified for testing on various materials. As a proof-of-concept demonstration, the hardness and elastic modulus of three materials are measured: fused silica (non-oxidizing), aluminum and copper (both oxidizing). In all cases, the properties match reasonably well with published data acquired by more conventional test methods.2

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Section: Coppermentioning

confidence: 99%

Hot nanoindentation in inert environments

Trenkle

Packard

Schuh

2010

Review of Scientific Instruments

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“…The solid parameters, given in Table 1, were fit to the following experimental data: density [14][20], enthalpy and entropy [16], ultrasonic [65]- [67], static compression [68][69], Hugoniot [31][46] [70], and band-theoretical calculations [71]. For the liquid, the tension region of the cold curve was chosen to match the experimental binding energy, and the parameters EFAC and were chosen to match the enthalpy and entropy at the melting point.…”

Section: Goldmentioning

confidence: 99%

Equations of state for Be, Ni, W, and Au.

Kerley¹

2003

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The PANDA code is used to construct tabular equations of state (EOS) for four metals-beryllium, nickel, tungsten and gold. Each EOS includes melting, vaporization, and thermal electronic excitation. Separate EOS tables are constructed for the solid and fluid phases, and the PANDA phase transition model is used to construct a multiphase EOS table for each metal. These new EOS tables are available for use with the CTH code and other hydrocodes that access the CTH database.

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“…Relation among the 3rd order elastic constants shown in eq. (A3) has not been observed in such metals as Cu and A1 (16) and is considered to be peculiar to the indium alloy having fcc-fct transition. Effect of anharmonicity on the phase transition is now under investigation.…”

Section: Appendixmentioning

confidence: 99%

Phenomenological Theory of Phase Change from <I>FCC</I> to <I>FCT</I> in the Indium Alloy

Kachi

1975

Trans. JIM

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In-TI alloy transforms from fcc to fct when the TI composition becomes lower than about 23 at%. In the In-Hg and the In-Pb alloys, fcc, fct(c/a>1) and fct(c/a<1) phases appear and the axial ratio (c/a) is dependent on the electron atom ratio. These phase changes in the indium alloys are treated by the phenomenological theory based on the Landau's theory of phase transition, by assuming that the elastic constant (C11-C12)/2 of the fcc phase is directly proportional to composition m and becomes zero at m=m0. As a result, composition dependences of the axial ratio (c/a) and (C11-C12)/2 in both fcc and fct phases are well explained phenomenologically.

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Anharmonicity in Noble Metals; Higher Order Elastic Constants

Cited by 368 publications

References 31 publications

Hot nanoindentation in inert environments

Hot nanoindentation in inert environments

Equations of state for Be, Ni, W, and Au.

Phenomenological Theory of Phase Change from <I>FCC</I> to <I>FCT</I> in the Indium Alloy

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