Densities of the Molten Fes, Fes–Cu<sub>2</sub>S and Fe–S–O Systems—Utilizing A Bottom-Balance Archimedean Technique

Kaiura, G. H.; Toguri, J. M.

doi:10.1179/cmq.1979.18.2.155

Cited by 55 publications

(40 citation statements)

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“…For each experiment, the cell-assembly xvas recovered and cross-sections showed very small deformations of the sapphire (Fig. 2-B [Kaiura et al, 1979]. Using this more realistic density value, we infer KT=40 GPa for their liquid composition which is in agreement with the present data for a similar sulfur content (Fig.4-B).…”

Section: Resultssupporting

confidence: 81%

Density measurements of liquid Fe‐S alloys at high‐pressure

Sanloup

Guyot²,

Gillet

et al. 2000

Geophysical Research Letters

153

132

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Abstract.•Ve present the first static measurements of the density of metallic liquids in the Fe-S system in the pressure and temperature range 1.5 GPa-6.2 GPa and 1500 K-1780 K. Density is inferred from X-ray absorption experiments carried out with a large volume press at the Europeax• Sym:hrotron Radiation Facility. It is shown that increasing the axnount of sulfi•r in liquid iron decx'eases the. bulk in(:ompressibility by-2.5 GPa per 1 weight% of S. These data are ixnportant for constraining the presence and amount of sulfur in the cores of small planetary bodies.

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Section: Resultssupporting

confidence: 81%

Density measurements of liquid Fe‐S alloys at high‐pressure

Sanloup

Guyot²,

Gillet

et al. 2000

Geophysical Research Letters

153

132

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“…For a given core concentration, we first calculate an interior structure model with an entirely liquid core and then consider increasingly larger inner cores until the core is entirely solid. When the core Ahrens et al (2002); (b) Urakawa et al (2004); (c) Anderson & Ahrens (1994); (d) Kaiura & Toguri (1979); (e) Nishida et al (2008).…”

Section: Models Of Mercurymentioning

confidence: 99%

Period of the Slichter mode of Mercury and its possible observation

Coyette

Hoolst

Déhant

2012

A&A

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Aims. We study the period of the Slichter mode (vibrational mode of the inner core of a planet) of Mercury in relation to its interior structure and assess the possibility to observe this mode with the probes MESSENGER and BepiColombo. Methods. The methodology of Grinfeld & Wisdom (2005, Phys. Earth Planet. Int., 151, 77) for the determination of the period of the polar Slichter modes of a planetary interior consisting of three homogeneous layers is generalized to models with an arbitrary but finite number of layers. Slichter modes periods are calculated for a large set of interior structure models of Mercury. We study the possible excitation of Slichter modes by a colllision with a meteoroid and estimate the minimal size of the meteoroid that could lead to a detection of these modes by BepiColombo. Results. The Slichter mode period obtained is on the order of several hours. Observation of the Slichter mode of Mercury allows constraining the inner core. An impact by a meteoroid with a radius of at least 100 m could excite the Slichter mode to a level observable by BepiColombo (assuming that the Slichter mode is the only excited mode), but since the estimated damping time of the Slichter mode is well below the average time between impacts of at least that size such an impact must have occured recently (less than 0.5 My ago).

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“…Therefore, there have been a number of efforts to increase the accuracy and precision of density measurements over a wide range of temperatures. Several traditional techniques for the density measurement include dilatometric, [1,2] pycnometric, [3] aerometric, [4] radiographic, [5] Archimedean, [6] maximum bubble pressure (MBP), [7,8] and liquid drop [9] methods. The accuracy and applicability of these methods is limited due to the chemical instability of specimens and test apparatus.…”

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confidence: 99%

Measurement of Density of Fe-Co Alloys Using Electrostatic Levitation

Lee

Rodriguez

Hyers

et al. 2015

Metall Mater Trans B

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The density of a series of five different iron-cobalt alloys was measured using electrostatic levitator processing. Each sample was processed through multiple thermal cycles and the liquid density was measured, while the superheated sample was cooled down to its undercooled state. The volume of the sample was estimated by analyzing captured high-speed video data of the projected shape of the sample. The mass change during the melt cycle was also tracked using Langmuir's equation of mass evaporation. The density was then calculated as a function of temperature based on these measurements of volume and mass. Density values obtained showed higher precision than existing data from the literature obtained using a variety of different techniques, although the accuracy was consistent.

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Densities of the Molten Fes, Fes–Cu₂S and Fe–S–O Systems—Utilizing A Bottom-Balance Archimedean Technique

Cited by 55 publications

References 1 publication

Density measurements of liquid Fe‐S alloys at high‐pressure

Density measurements of liquid Fe‐S alloys at high‐pressure

Period of the Slichter mode of Mercury and its possible observation

Measurement of Density of Fe-Co Alloys Using Electrostatic Levitation

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Densities of the Molten Fes, Fes–Cu2S and Fe–S–O Systems—Utilizing A Bottom-Balance Archimedean Technique

Cited by 55 publications

References 1 publication

Density measurements of liquid Fe‐S alloys at high‐pressure

Density measurements of liquid Fe‐S alloys at high‐pressure

Period of the Slichter mode of Mercury and its possible observation

Measurement of Density of Fe-Co Alloys Using Electrostatic Levitation

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Product

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Densities of the Molten Fes, Fes–Cu₂S and Fe–S–O Systems—Utilizing A Bottom-Balance Archimedean Technique