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Photoconductivity of Some Intermetallic Compounds

Description: The article discusses the photoconductivity possessed by the intermetallic compounds of fixed composition, ZnSb and Mg3Sb2 and their spectral distribution of photoconductivity is measured.
Date: unknown
Creator: Zhuze, V. P. (Vladimir Panteleĭmonovich); Mochan, I. V. & Ryvkin, S. M. (Solomon Meerovich)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Nickel-Plutonium System

Description: A tentative nickel-plutonium constitutional diagram was based on data obtained by thermal analysis, metallography, and x-ray-diffraction techniques. The systema is a complex one with the following important features. Nickel is soluble in epsilon plutonium, extending the epsilon field to 4.3 at.% nickel at 465 deg C. Nickel and plutonium form six intermetallic compounds, PuNi, EnNi/sub 2/, PuNi/sub 3/, PuNi/sub 4/, PuNi/sub 5/, and PuNi/sub 9/. The compound PuNi/ sub 5/ forms congruently from th… more
Date: March 1, 1951
Creator: Wensch, Glen William, 1917-; Whyte, D D.; Cramer, E M.; Ellinger, F H.; Schonfeld, F W. & Struebing, V O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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GMR in intermetallics

Description: Typical examples of giant magnetoresistance (GMR) effects observed in intermetallic compounds at various conditions are reviewed and some comparisons with the GMR magnetic multilayer systems are shown. Possibilities of tuning material parameters desired for applications are discussed in context of present understanding of the mechanisms responsible for GMR in this class of materials. 18 refs.
Date: April 1, 1996
Creator: Sechowsky, V.; Havela, L.; Nakotte, H. & Brueck, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Wall pressure exerted by hydrogenation of sodium aluminum hydride.

Description: Wall pressure exerted by the bulk expansion of a sodium aluminum hydride bed was measured as a function of hydrogen content. A custom apparatus was designed and loaded with sodium alanates at densities of 1.0, 1.1, and 1.16 g/cc. Four complete cycles were performed to identify variations in measured pressure. Results indicated poor correlation between exerted pressure and hydrogen capacity of the sodium alanate beds. Mechanical pressure due to the hydrogenation of sodium alanates does not influ… more
Date: June 1, 2009
Creator: Perras, Yon E.; Dedrick, Daniel E. & Zimmerman, Mark D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low-Temperature Synthesis Routes to Intermetallic Superconductors

Description: Over the past few years, our group has gained expertise at developing low-temperature solution-based synthetic pathways to complex nanoscale solids, with particular emphasis on nanocrystalline intermetallic compounds. Our synthetic capabilities are providing tools to reproducibly generate intermetallic nanostructures with simultaneous control over crystal structure, composition, and morphology. This DOE-funded project aims to expand these capabilities to intermetallic superconductors. This coul… more
Date: January 8, 2008
Creator: Schaak, Raymond E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Synthesis and design of silicide intermetallic materials

Description: The overall objective of this program is to develop structural silicide-based materials with optimum combinations of elevated temperature strength/creep resistance, low temperature fracture toughness, and high temperature oxidation and corrosion resistance for applications of importance to the U.S. processing industry. A further objective is to develop silicide-based prototype industrial components. The ultimate aim of the program is to work with industry to transfer the structural silicide mat… more
Date: November 1, 1998
Creator: Petrovic, J. J.; Castro, R. G.; Butt, D. P.; Park, Y.; Hollis, K. J. & Kung, H. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TEM investigation on the low temperature phase of HfV{sub 2}

Description: HfV2, a particularly attractive C15 Laves phase structural material, undergoes a structural transformation at 115K. A tentative reciprocal lattice for low-temperature HfV2 based on a combination of selected area diffraction patterns is illustrated. The results reveal structural characteristics inconsistent with earlier claims by other investigators. Further and detailed studies are under way, using a combination of CBED and synchrotron diffraction to determine the low-temperature structure`s cr… more
Date: April 1, 1995
Creator: Chu, Fuming & Mitchell, T.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tritium Separation Using Metal Hydrides

Description: This paper discusses some of the metal hydride and intermetallic compounds which readily absorb the hydrogen gas by a simple contact to form metal hydrides. Metal hydrides have several important properties for the hydrogen isotope separation.
Date: March 9, 2001
Creator: Lee, M.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Lattice disorder and magnetism in f-electron intermetallics

Description: Real materials can have real differences compared to ideal systems. For instance, non-Fermi liquid (NFL) behavior was initially thought to be due to chemical disorder, since the first such materials were all substituted. Although several nominally well-ordered NFL's have been discovered and extensively studied, the effect of disorder on the magnetic properties of f-electron intermetallic systems remains poorly understood. Disorder in NFL systems is reviewed from an experimental, local structure… more
Date: July 29, 2004
Creator: Booth, C.H.; Han, S.-W.; Skanthakumar, S. & Sarrao, J.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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PROCESSING, MICROSTRUCTURE AND CREEP BEHAVIOR OF MO-SI-B-BASED INTERMETALLIC ALLOYS FOR VERY HIGH TEMPERATURE STRUCTURAL APPLICATIONS

Description: This research project is concerned with developing a fundamental understanding of the effects of processing and microstructure on the creep behavior of refractory intermetallic alloys based on the Mo-Si-B system. During this year, the microstructure, bend strength and compressive creep behavior of a Mo-3Si-1B (in wt.%) alloy were studied. The microstructure of this alloy was three-phase, being composed of {alpha}-Mo, Mo{sub 3}Si and T2-Mo{sub 5}SiB{sub 2} phases. The elastic limit strength of t… more
Date: February 8, 2005
Creator: Vasudevan, Vijay K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Properties of semiconducting Ru{sub 2}Ge{sub 3}

Description: Transport properties of large single crystalline samples of Ru{sub 2}Ge{sub 3} grown from the melt have been investigated in a 25--1000 C temperature range. A diffusionless transition between 500 and 550 C from a high temperature tetragonal structure to a low temperature orthorhombic structure was clearly observed. Results showed that both the low temperature orthorhombic and the high temperature structural tetragonal phase are semiconductors. Some anisotropy of the transport coefficients was d… more
Date: September 1, 1993
Creator: Fleurial, Jean-Pierre & Borshchevsky, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The role of ALCHEMI in understanding the properties of ordered intermetallic alloys

Description: After one and one-half decades of development, ALCHEMI is approaching the status of an established analytical technique. Many of the problems that have plagued ALCHEMI, especially for the analysis of ordered intermetallic alloys, are now well understood, and accurate site-distributions can be extracted from a variety of intermetallic alloys. This paper begins with an overview of the factors that can lead to large systematic errors or gross misinterpretations of ALCHEMI data, with illustrations … more
Date: November 1, 1998
Creator: Anderson, I. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The mechanical properties of FeAl

Description: Only in the last few years has progress been made in obtaining reproducible mechanical properties data for FeAl. Two sets of observations are the foundation of this progress. The first is that the large vacancy concentrations that exist in FeAl at high temperature are easily retained at low temperature and that these strongly affect the low-temperature mechanical properties. The second is that RT ductility is adversely affected by water vapor. Purpose of this paper is not to present a comprehen… more
Date: December 31, 1996
Creator: Baker, I. & George, E. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Structure factor measurement in TiAl and silicon

Description: It proved impossible to obtain results with sufficient precision for TiAl reproducibly (<0.1%) from samples of different thicknesses. In order to ascertain the origin of this inconsistency, this study concentrates on the development of the experimental and theoretical tools required for such refinement and measurements for Si have been performed.
Date: March 1, 1996
Creator: Swaminathan, S.; Wiezorek, J.M.; Jones, I.P.; Zaluzec, N.J.; Fraser & Maher, D.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Reduction in Defect Content of ODS Alloys

Description: The work detailed within this report is a continuation of earlier work carried out under contract number 1DX-SY382V. The earlier work comprises a literature review of the sources and types of defects found principally in Fe-based ODS alloys as well as experimental work designed to identify defects in the prototype ODS-Fe{sub 3}Al alloy, deduce their origins and to recommend methods of defect reduction. The present work is an extension of the experimental work already reported and concentrates o… more
Date: May 15, 2001
Creator: Ritherdon, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reduction in Defect Content in ODS Alloys

Description: The work detailed within this report is a continuation of earlier work that was carried out under contract number IDX-SY382V. The earlier work comprised a literature review of the sources and types of defects found principally in Fe-based ODS alloys together with a series of experiments designed to identify defects in ODS Fe{sub 3}Al material and recommend methods of defect reduction. Defects found in the Mechanically Alloyed (MA) ODS Fe{sub 3}Al included regions of incomplete MA, porosity, int… more
Date: February 1, 2000
Creator: Ritherdon, J. & Jones, A. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Magnetism and superconductivity of uranium and intermetallic compounds

Description: Heat capacity, resistivity, and phonon density of states have been measured on uranium and reported already. Many of the results are on single crystals of purity that has been unavailable before. Some intermetallic compounds have been measured that are in the class of so-called heavy-fermion materials. We present here the latest results along with a discussion of the occurrence of superconductivity or magnetism in these materials.
Date: January 1, 2001
Creator: Cooley, Jason C.; Gay, Eddie C.; Hanrahan, Robert J.; Hults, William L.; Lashley, Jason C.; Manley, Michael E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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