Thermal Transport Properties of Ordered and Disordered Ni3Fe

Moore, J. P.; Kollie, T.G.; Graves, R.S.; McElroy, D. L.

doi:10.1063/1.1660692

Cited by 16 publications

(10 citation statements)

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“…We found relatively little prior work on thermal conductivity of permalloys or other Ni-Fe alloys in this regime of T . Existing studies do show peaks in thermal conductivity for a range of alloys 68,69 , and in one case an upturn in L below ∼ 200K. 69 Moore, et al suggest a lattice (phonon) thermal conductivity is involved in their k peak and is the source of the upturn in L. It is possible to crudely explain the magnitude, if not the exact temperature dependence, of the peak in the 56 nm Py k with either a phonon or magnon contribution.…”

Section: -47mentioning

confidence: 99%

“…Existing studies do show peaks in thermal conductivity for a range of alloys 68,69 , and in one case an upturn in L below ∼ 200K. 69 Moore, et al suggest a lattice (phonon) thermal conductivity is involved in their k peak and is the source of the upturn in L. It is possible to crudely explain the magnitude, if not the exact temperature dependence, of the peak in the 56 nm Py k with either a phonon or magnon contribution. Since the current data supports little meaningful physical insight on this possible contribution, we leave attempts at quantitative analysis to future studies.…”

Section: -47mentioning

confidence: 99%

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Thermal and electrical conductivity of approximately 100-nm permalloy, Ni, Co, Al, and Cu films and examination of the Wiedemann-Franz Law

et al. 2015

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We present measurements of thermal and electrical conductivity of polycrystalline permalloy (Ni-Fe), aluminum, copper, cobalt, and nickel thin films with thickness < 200 nm. A micromachined silicon-nitride membrane thermal isolation platform allows measurements of both transport properties on a single film and an accurate probe of the Wiedemann-Franz (WF) law expected to relate the two. Through careful elimination of possible effects of surface scattering of phonons in the supporting membrane, we find excellent agreement with WF in a thin Ni-Fe film over nearly the entire temperature range from 77 to 325 K. All other materials studied here deviate somewhat from the WF prediction of electronic thermal conductivity with a Lorenz number, L, suppressed from the free-electron value by 10 − 20%. For Al and Cu we compare the results to predictions of the theoretical expression for the Lorenz number as a function of T . This comparison indicates two different types of deviation from expected behavior. In the Cu film, a higher than expected L at lower T indicates an additional thermal conduction mechanism, while at higher T lower than expected values suggests an additional inelastic scattering mechanism for electrons. We suggest the additional low T L indicates a phonon contribution to thermal conductivity, and consider increased electron-phonon scattering at grain boundaries or surfaces to explain the high T reduction in L.

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Section: -47mentioning

confidence: 99%

Section: -47mentioning

confidence: 99%

Thermal and electrical conductivity of approximately 100-nm permalloy, Ni, Co, Al, and Cu films and examination of the Wiedemann-Franz Law

et al. 2015

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“…These were subsequently merged smoothly together to form the recommendations for the entire Fe-Ni system. and Moore et al [346] iiat-O …”

Section: F-mentioning

confidence: 99%

Electrical Resistivity of Ten Selected Binary Alloy Systems

Ackerman

et al. 1983

Journal of Physical and Chemical Reference Data

210

110

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This work compiles, reviews, and discusses the available data and information on the electrical resistivity of ten selected binary alloy systems and presents the recommended values resulting from critical evaluation, correlation, analysis, and synthesis of the available data and information. The ten binary alloy systems selected are the systems of aluminum–copper, aluminum–magnesium, copper–gold, copper–nickel, copper–palladium, copper–zinc, gold–palladium, gold–silver, iron–nickel, and silver–palladium. The recommended values for each of the ten binary alloy systems except three (aluminum–copper, aluminum–magnesium, and copper–zinc) are given for 27 compositions: 0 (pure element), 0.5, 1, 3, 5, 10(5)95, 97, 99, 99.5, and 100% (pure element). For aluminum–copper, aluminum–magnesium, and copper–zinc alloy systems, the recommended values are given for 26, 12, and 11 compositions, respectively. For most of the alloy systems the recommended values cover the temperature range from 1 K to the solidus temperature of the alloys or to about 1200 K. For most of the nine elements constituting the alloy systems, the recommended values cover the temperature range from 1 K to above the melting point into the molten state. The estimated uncertainties in most of the recommended values are about ±3% to ±5%. Key words: alloy systems; alloys; conductivity; critically evaluated data; data analysis; data compilation; data synthesis; electrical conductivity; electrical resistivity; metals; recommended values; resistivity.

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“…Crystalline order in Ni 3 Fe binary and several Ni 3 Fe ternary alloys has been reported extensively in the literature, primarily on two types of topics: the effect of crystalline order on material property; and the method by which crystalline order is detected. Material properties have included hardness and work hardening, [1] elastic constants and strength, [2] thermal conductivity, electrical resistivity and Seebeck coefficient, [3] specific heat, [4] and magnetic permeability.…”

Section: Introductionmentioning

confidence: 99%

“…Material properties have included hardness and work hardening, [1] elastic constants and strength, [2] thermal conductivity, electrical resistivity and Seebeck coefficient, [3] specific heat, [4] and magnetic permeability.…”

Section: Introductionmentioning

confidence: 99%

The effect of short range order on the thermal output and gage factor of Ni₃FeCr strain gages

Kieffer

Peters

2017

Strain

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The ability of alloy 70Ni-27.5Fe-2.5Cr to form an ordered crystalline structure upon application of elevated temperature and the resulting effects on a variety of physical properties such as magnetism, strength, electrical resistance, and specific heat are well known. This paper demonstrates that strain gages made with 70Ni-27.5Fe-2.5Cr foil with an ordered crystalline structure have both high gage factors and high thermal outputs. The thermal output for strain gages made of 70Ni-27.5Fe-2.5Cr foil is demonstrated to be about 1,374 μΩ/Ω/K. The gage factor is nonlinear ranging in magnitude from about 5.0 to 3.6 for applied strains of 300 and 1,300 μE, respectively. The magnitude of gage factor and thermal output correspond with transformation of the crystalline structure from a state of disorder to a state of order. Comparisons to strain gages made with 36Ni-57Fe-7Cr foil are provided because of its use in the manufacturing of metal foil strain gages and their demonstrated high gage factors and high thermal outputs. Practical application for 70Ni-27.5Fe-2.5Cr strain gages is demonstrated by dead-weight loading of shear-beam load cells at low applied strain levels to minimise the effect of nonlinear gage factor; and Wheatstone bridge cancellation of high thermal output. KEYWORDS gage factor, metal foil strain gages, Ni 3 FeCr, short range order, thermal output | INTRODUCTIONCrystalline order in Ni 3 Fe binary and several Ni 3 Fe ternary alloys has been reported extensively in the literature, primarily on two types of topics: the effect of crystalline order on material property; and the method by which crystalline order is detected. Material properties have included hardness and work hardening, [1] elastic constants and strength, [2] thermal conductivity, electrical resistivity and Seebeck coefficient, [3] specific heat, [4] and magnetic permeability.[5] The material property may actually be quite sensitive to crystalline order as reported by Binnatov et al. [4] where specific heat appeared to be more sensitive than Mossbauer spectroscopy in detecting crystalline order. Regarding the specific strain gage properties of thermal output and gage factor in Ni 3 Fe ternary alloys, no prior research relating these to crystalline order was found. Detection of crystalline order has typically been by indirect measurement, most notably electrical resistivity. As such, the bonded electrical resistance strain gage may be ideally suited for detection of crystalline order since thermal output and gage factor involve change in electrical resistivity with the former being from change in temperature and the latter being from change in applied strain.

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Thermal Transport Properties of Ordered and Disordered Ni3Fe

Cited by 16 publications

References 8 publications

Thermal and electrical conductivity of approximately 100-nm permalloy, Ni, Co, Al, and Cu films and examination of the Wiedemann-Franz Law

Thermal and electrical conductivity of approximately 100-nm permalloy, Ni, Co, Al, and Cu films and examination of the Wiedemann-Franz Law

Electrical Resistivity of Ten Selected Binary Alloy Systems

The effect of short range order on the thermal output and gage factor of Ni₃FeCr strain gages

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Thermal Transport Properties of Ordered and Disordered Ni3Fe

Cited by 16 publications

References 8 publications

Thermal and electrical conductivity of approximately 100-nm permalloy, Ni, Co, Al, and Cu films and examination of the Wiedemann-Franz Law

Thermal and electrical conductivity of approximately 100-nm permalloy, Ni, Co, Al, and Cu films and examination of the Wiedemann-Franz Law

Electrical Resistivity of Ten Selected Binary Alloy Systems

The effect of short range order on the thermal output and gage factor of Ni3FeCr strain gages

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The effect of short range order on the thermal output and gage factor of Ni₃FeCr strain gages