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The Thermodynamic Properties of Solid and Fluid Helium-3 and Helium-4 Above 3 K at High Densities

The Thermodynamic Properties of Solid and Fluid Helium-3 and Helium-4 Above 3 K at High Densities
Author: John Sydney Dugdale
Publisher:
Total Pages: 29
Release: 1963
Genre:
ISBN:

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Measurements have been made of the specific heat at constant volume of solid He-3 from 3 K up to the melting point at a number of different densities corresponding to pressures up to 2000 atm. The measurements have been extended through the melting region at constant volume up to 29 K in the fluid phase. For comparison similar measurements have been made on He-4 at four different densities. By combining these data with the p-V-T data of Mills + Grilly (1955) and Grilly + Mills (1959), the complete thermodynamic properties of the solids have been derived in the relevant pressure and temperature range. The results can be understood semi-quantitatively in terms of the zero-point energy of the solids and a quasi-harmonic model of the lattice vibrations. A brief discussion of the specific heat of the fluid phase is also given. (Author).


Technology of Liquid Helium

Technology of Liquid Helium
Author: Richard H. Kropschot
Publisher:
Total Pages: 392
Release: 1968
Genre: Liquid helium
ISBN:

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The Impact of Selling the Federal Helium Reserve

The Impact of Selling the Federal Helium Reserve
Author: National Research Council
Publisher: National Academies Press
Total Pages: 98
Release: 2000-06-18
Genre: Political Science
ISBN: 0309070384

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The Helium Privatization Act of 1996 (P.L. 104-273) directs the Department of the Interior to begin liquidating the U.S. Federal Helium Reserve by 2005 in a manner consistent with "minimum market disruption" and at a price given by a formula specified in the act. It also mandates that the Department of the Interior "enter into appropriate arrangements with the National Academy of Sciences to study and report on whether such disposal of helium reserves will have a substantial adverse effect on U.S. scientific, technical, biomedical, or national security interests." This report is the product of that mandate. To provide context, the committee has examined the helium market and the helium industry as a whole to determine how helium users would be affected under various scenarios for selling the reserve within the act's constraints. The Federal Helium Reserve, the Bush Dome reservoir, and the Cliffside facility are mentioned throughout this report. It is important to recognize that they are distinct entities. The Federal Helium Reserve is federally owned crude helium gas that currently resides in the Bush Dome reservoir. The Cliffside facility includes the storage facility on the Bush Dome reservoir and the associated buildings pipeline.


A Compilation of the Physical Equilibria and Related Properties of the Hydrogen-helium System

A Compilation of the Physical Equilibria and Related Properties of the Hydrogen-helium System
Author: Dennis E. Drayer
Publisher:
Total Pages: 68
Release: 1961
Genre: Helium
ISBN:

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Published data have been used to calculate K-factors for the helium-hydrogen system over the range of 17.4° to 21.8°K and 2 to 32 atmospheres pressure. K-factors are presented graphically for three isotherms over this range. A bibliography of approximately 290 references is also presented on related properties for this system and for the pure components.


Phenomena at the Temperature of Liquid Helium

Phenomena at the Temperature of Liquid Helium
Author: Eli Franklin Burton
Publisher:
Total Pages: 408
Release: 1940
Genre: Science
ISBN:

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Historical introduction. The liquefaction of gases. The measurement of temperature. The physical properties of liquid and solid helium. Superconductivity. Specific heats at low temperatures. Magnetic properties. Temperatures below 1 °k. Eleectrical and thermal conductivities. The nature of the superconducting. The -transformation in liquid helium and the nature of helium and the nature of helium II. Appendixes.


NBS Technical Note

NBS Technical Note
Author:
Publisher:
Total Pages: 500
Release: 1959
Genre: Physical instruments
ISBN:

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