skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Rheology of Molten Metals.

Abstract

Abstract not provided.

Authors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1420742
Report Number(s):
SAND2017-1346C
651070
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the 88th Annual Meeting of the Society of Rheology held February 12-16, 2017 in Tampa, FL.
Country of Publication:
United States
Language:
English

Citation Formats

Grillet, Anne, and Argibay, Nicolas. Rheology of Molten Metals.. United States: N. p., 2017. Web.
Grillet, Anne, & Argibay, Nicolas. Rheology of Molten Metals.. United States.
Grillet, Anne, and Argibay, Nicolas. Wed . "Rheology of Molten Metals.". United States. doi:. https://www.osti.gov/servlets/purl/1420742.
@article{osti_1420742,
title = {Rheology of Molten Metals.},
author = {Grillet, Anne and Argibay, Nicolas},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2017},
month = {Wed Feb 01 00:00:00 EST 2017}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Pyrochemical processes using molten salts provide a unique opportunity for the extraction and refining of many reactive and valuable metals either directly from the beneficiated ore or from other process effluent that contain reactive metal compounds. This research program is aimed at developing a process for the production and recovery of reactive and valuable metals, such as zinc, tin, lead, bismuth and silver, in a hybrid reactor combining electrolytic production of the calcium reductant and in-situ utilization of this reductant for pyrochemical reduction of the metal compounds, such as halide or oxides. The process is equally suitable for producing othermore » low melting metals, such as cadmium and antimony. The cell is typically operated below 1000C temperature. Attempts have been made to produce silver, lead, bismuth, tin and cerium by calciothermic reduction in a molten salt media. In a separate effort, calcium has been produced by an electrolytic dissociation of lime in a calcium chloride medium. The most important characteristic of the hybrid technology is its ability to produce metals under zero-waste'' conditions.« less
  • The objective of the Alternate Central Receiver program was to demonstrate the feasibility of the molten salt central receiver power system by conducting a series of experiments and using the results for commercial-scale designs. Experiments were conducted to provide data in the area of molten salt stability and materials compatibility which could be used in designing a commercial molten salt solar central receiver power system with a lifetime of 30 years or more. Three different categories of tests were conducted: (A) materials compatibility; (B) materials mechanical properties; and (C) dynamic testing. The first two categories were static materials immersion tests.more » The dynamic testing was conducted in a pumped molten salt loop covering a thermal gradient of 566/sup 0/C (1050/sup 0/F) to 288/sup 0/C (550/sup 0/F). The results indicate Incoloy 800 and RA330 are acceptable materials for long-term, high-temperature service (up to 579/sup 0/C (1075/sup 0/F)), and that 316 and 316L stainless may be acceptable subject to results of further study. The results of tests on carbon steel indicate that it is acceptable for low-temperature molten salt applications (up to 288/sup 0/C (550/sup 0/F)). None of the carbon steel alloys tested were found to be acceptable for intermediate-temperature service (up to 400/sup 0/C (750/sup 0/F)). There does not seem to be any direct effect of molten salt exposure on materials properties or internal characteristics. The effects are essentially superficial oxide growth.« less
  • We have shown that a laser-produced plasma plume which is representative in composition of the condensed phase target can be reproducibly generated if the movement of the surface due to evaporation is kept in pace with the thermal diffusion front propagating into the bulk. The resulting mass loss is then strongly controlled by the thermal diffusivity of the target matter, and this relationship has been exploited to measure the thermal diffusivity of metallic alloys. We have developed a novel RF levitator-heater as a contamination-free molten metal source to be used as a target for LPP plume generation. In order tomore » determine the mass loss due to LPP excitation, a new high sensitivity transducer has been constructed for measurement of the resulting impulse imparted on the specimen. The impulse transducer is built onto the specimen holder within the levitation-assisted molten metal source. The LPP method has been fully excercised for measurement of the thermal diffusivity of a molten specimen relative to the value for its room temperature solid. The results for SS304 and SS316 are presented together with a critique of the results. A numerical modeling of specimen heating in the molten metal source and the physical basis of the new hod are also presented.« less
  • The possibility of dried molten sodium metaphosphate as electrolyte and oxidant in electrochemical cells has been examined experimentally. New results on the resistance of zirconium and Zircaloy-2 to corrosion and to anodic dissolution are given. The behavior of titanium and several other metals, copper, iron, and especially nickel, is presented as well. Calcium behaves differently, as does platinum. Cells of the general type M$sub 1$/molten NaPO$sub 3$/M$sub 2$ are discussed from the point of view of possible anodes, cathodes, and container materials in electrochemical reactors. (auth)