The new AIP handbook

Gray, Dwight E.

doi:10.1063/1.3051015

Cited by 11 publications

(10 citation statements)

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“…The UGP can be obtained with SOEC and TOEC using the Mason's Table [18]. The present values of SOEC and bulk modulus B with the others [24,25] are given in Table 3.These Parameters at different temperature are presented in Table 4. The values of ultrasonic coupling constants for longitudinal and shear waves are computed using Eq.…”

Section: Resultsmentioning

confidence: 99%

Temperature Dependent Elastic and Ultrasonic Properties of Iron Aluminide

Yadav¹,

Singh²,

Tripathi³

et al. 2013

ujms

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The anisotropic elastic constants of a B2 structured iron aluminide FeAl (Fe-40 at. % Al) alloy at different temperatures are computed using Coulomb and Born Mayer model. The temperature dependent ultrasonic properties of the alloy along with other associated parameters are determined using the elastic constants. The correlation between the mechanical and thermal properties makes ultrasonic properties a suitable, nondestructive tool to study the physical state of FeAl alloy. The results of present investigation are discussed in correlation with the microstructural phenomenon like phonon-phonon interaction and the other thermophysical properties. Temperature dependence of ultrasonic attenuation along different crystallographic directions reveals some typical characteristic features.

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Section: Resultsmentioning

confidence: 99%

Temperature Dependent Elastic and Ultrasonic Properties of Iron Aluminide

Yadav¹,

Singh²,

Tripathi³

et al. 2013

ujms

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“…Thermal relaxation time ( th ) is determined utilizing lattice thermal conductivity values [33][34][35]. Specific heat per unit volume (C v ) and energy density (E 0 ) of crystals have been evaluated as a function of  D /T [29]; where  D is Debye temperature. Non-linearity constant (D) are obtained at different temperature.…”

Section: Resultsmentioning

confidence: 99%

“…The SOEC and TOEC are calculated at different temperatures. The values of density are taken from the literature [29]. The microstructure of Fe was tested by transmission electron microscopy and X-ray diffraction.…”

Section: Theoretical Approachmentioning

confidence: 99%

Sensitivity of Nanostructured Iron Metal on Ultrasonic Properties

Gupta¹,

Gupta²,

Singh³

et al. 2011

OJMetal

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The present investigation is focused on the influence of the nanocrystalline structure of pure iron metal on the ultrasonic properties in the temperature range 100-300 K. The ultrasonic attenuation due to phononphonon interaction and thermoelastic relaxation phenomena has been evaluated for longitudinal and shear waves along <100>, <110> and <111> crystallographic directions. The second-and third-order elastic constants, ultrasonic velocities, thermal relaxation, anisotropy and acoustic coupling constants were also computed for the evaluation of ultrasonic attenuation in this temperature scale. The direction <111> is most appropriate to study longitudinal sound waves, while <100>, <110> direction are best to propagate shear waves due to lowest values of attenuation in these directions. Other physical properties correlated with obtained results have been discussed.

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“…The compositions FexCol_ x, with 0.3< x < 1.0 were known to be strongly anisotropic with anisotropic constant K for ~-Fe, Feo.TCoo. 3 and Feo.3Coo.7 being 460, -4 3 0 and 102 respectively in units of x t0 .3 erg/cm 3 (Gray 1963). Thus the observed anisotropy may be attributed to the presence of compositions of the type c~-Fe, Feo.TCoo.…”

Section: Magnetic Anisotropymentioning

confidence: 86%

Magnetic hysteresis and crystallization studies on metallic glass alloy Fe67Co18B14Si1

Varaprasad

Radhakrishnamurthy

1986

Bull. Mater. Sci.

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Magnetic hysteresis studies were carried out on Metgias 2605 Co(Fe67ColsB14Si 0 samples, cut parallel and perpendicular to the ribbon axis and annealed at different temperatures. The samples annealed at 450°C for 2 hr show a coercive force of 8.75 Oe and 0-60 Oe in the parallel and perpendicular directions respectively. Electron probe micro analysis studies revealed the onset of primary crystallization at 400°C and a gradual displacement of B and Si from the lattice as the annealing temperature was increased to 450°C. The observed large coercive force is due to an increase in anisotropy resulting from an intergrowth pattern of the type Fe.~Col-x, 0-3< x < 1"0, including boron containing phases such as (EeCo)B, (FeCo)2 B, (FeCo)3 B, developed by the displacement of and Si from the original amorphous lattice.

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The new AIP handbook

Cited by 11 publications

References 0 publications

Temperature Dependent Elastic and Ultrasonic Properties of Iron Aluminide

Temperature Dependent Elastic and Ultrasonic Properties of Iron Aluminide

Sensitivity of Nanostructured Iron Metal on Ultrasonic Properties

Magnetic hysteresis and crystallization studies on metallic glass alloy Fe67Co18B14Si1

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