Thermodynamics of Interstitial Phases and Defect Compounds; LA-3481-MS, UC-4, Chemistry, TID-4500 Project Only
Los Alamos, NM: Los Alamos Scientific Laboratory of the University of California, 1966. Presumed First Edition, First printing. Wraps. 23, [1] pages plus covers. Figures. Formulae. Tables. Name in ink on front cover. Number stamped on front cover. This report was written January 20, 1966 and distributed April 26, 1966. The Abstract states: Known thermodynamic properties are used to determine the validity of theoretical models for calculating thermodynamic properties of interstitial solid solutions and defect compounds. The model for interstitial solid solutions is shown to be unacceptable for several reasons, and the model for defect compounds does not satisfy the assumptions on which it is based. All LA...MS reports are informal documents, usually prepared for a special purpose and primarily prepared for use with the Laboratory rather than for general distribution. This report has not been edited, reviewed or verified for accuracy. All LA...MS reports express the views of the authors as of the time they were written and do not necessarily reflect the opinions of the Los Alamos Scientific Laboratory or the final opinion of the authors on the subject. Dr. DePoorter apparently began working at Los Alamos in 1971 and spent a significant amount of his career there. The terms “interstitial compound” and “interstitial phase” are commonly applied to the compounds of the transition metals with the light nonmetals hydrogen, boron, carbon, nitrogen, and, sometimes, oxygen, silicon, phosphorus, and sulfur. The alternate term “hard metals” has been used for the compounds with boron, carbon, nitrogen, and silicon. The latter description refers to the properties of metallic luster and conductivity, coupled with high hardness, while the “interstitial” descriptions are derived from a consideration of the crystal structures of these compounds. Both types of definition refer to compounds that may be considered as intermediate between intermetallic compounds, or alloys, and inorganic (nonmetallic) compounds, with some of the properties of each class. Interstitial solid solutions are solid state solutions that form when solute atoms enter into the holes between solvent atoms of the lattice. There, the solute atoms are small enough to enter into these holes. We call these holes, interstitial sites. This process weakens the bonds between solvent atoms. Condition: Good.
Keywords: Thermodynamics, Interstitial Phases, Defect Compounds, Theoretical Models, Interstitial Solid Solutions
[Book #84109]
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