Structural and electrical relations of monosulphide solid solution in the FeNiS system at high pressures and temperatures

Vollstädt, Heiner; Seipold, U.; Kraft, Aaron

doi:10.1016/0031-9201(80)90042-4

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…In liquid S at 1 atm, c decreases nonlinearlv with increasing T, which has been associated with structury a1 rearrangements through the breakup of polymolecular formations (1 8 resulting from an electronic transition (without structural change) was reported in FeS at about 6 GPa and 600 K (20). Furthermore, a continuous semiconducting-tometallic transition in monosulfide solid solution in the Fe-Ni-S system was observed under high P a n d , T (21 ). W e considered the potential for immiscibility (22) or two-liquid segregation as a cause of the anomalous behavior in c. Immiscibility would cause stratification of the phases.…”

mentioning

confidence: 91%

Anomalous Behavior of Sound Velocity and Attenuation in Liquid Fe-Ni-S

Nasch

Manghnani

Secco

1997

Science

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The compressional wave velocity in molten iron containing 5 percent nickel and 10 percent sulfur increased with increasing temperature. This anomalous behavior was determined to be attributable to the presence of sulfur, which conditions the formation of large molecular units in the liquid. Temperature-induced breakup of macromolecular units resulted in greater packing efficiency and an increased velocity. Ten percent sulfur increased attenuation by one to two orders of magnitude compared with liquid iron. Such behavior at outer core pressures and temperatures would constrain the velocity gradient in the outer core and would enable the discrimination of potential light alloying elements.

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confidence: 91%

Anomalous Behavior of Sound Velocity and Attenuation in Liquid Fe-Ni-S

Nasch

Manghnani

Secco

1997

Science

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“…On such a basis the existence of some form of microscopic aggregation is postulated as a plausible explanation for the observed acoustic anomaly [5]. In fact, some electronic properties of the pure liquid components are shown to be deeply affected by the presence of elements such as Si or S [7], something which is expected to lead to substantial changes of structure. If such molecular units exist in the liquid as a consequence of some sort of S-induced rearrangements, then the breakup of these units with increasing temperature will explain the increase in sound velocity as well as the anomalous behavior of the attenuation.…”

Section: Introductionmentioning

confidence: 96%

High frequency collective excitations in molten Fe/Ni alloys studied by inelastic neutron scattering

Jiménez‐Ruiz

Ruiz-Martín

Cuello

et al. 2008

Journal of Alloys and Compounds

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“…In fact, some electronic properties of the pure liquid components are shown to be deeply affected by the presence of elements such as Si or S [7], something which is expected to lead to substantial changes of structure. If such 'molecular' units exist in the liquid as a consequence of some sort of S-induced rearrangements, then the break-up of these units with increasing temperature will explain the increase in sound velocity (greater packing efficiency of the liquid) as well as the anomalous behavior of the attenuation.…”

Section: Introductionmentioning

confidence: 97%