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6 Result(s)

within W. B. Yelon Remove this filter Characterization and Evaluation of Materials Remove this filter Inorganic Chemistry Remove this filter

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  1. No Access

    Article

    Study of the Crystal Structure and Phase Transition of Li2NH System

    Neutron diffraction at different temperatures has been used to study the crystal structure and possible phase transitions of Li2NH. It was found that the crystal structure and phase transition are related to the ...

    **bo Yang, J. Lamsal, Q. Cai, W. B. Yelon, W. J. James in MRS Online Proceedings Library (2008)

  2. No Access

    Article

    Hydrogen Sites in the α(TiCrSiO) 1/1 Approximant Phase

    Crystal approximant phases are important because they are believed to have a similar local atomic structure to corresponding quasicrystals. Interstitial hydrogen is used as a probe of the local structures of t...

    J. Y. Kim, W. J. Kim, W. B. Yelon, P. C. Gibbons… in MRS Online Proceedings Library (1998)

  3. No Access

    Article

    Effects of Elevated Temperature Hydrogen Exposure on the Microstructure of α2- and γ-Based Titanium Aluminide Alloys

    Ti-25A1, Ti-25Al-10Nb-2V, and Ti-25Al-10Nb-3V-1Mo (at. %) α2-based alloys, and Ti-48Al and Ti-52Al γ-based alloys were exposed to gaseous hydrogen at elevated temperatures. A novel ternary hydride was observed in...

    D. S. Schwartz, R. J. Lederich, W. B. Yelon, Y.-Y. Tang… in MRS Online Proceedings Library (1992)

  4. No Access

    Article

    On the Effects of Magnetic Bonding in Rare Earth Transition Metal Intermetallics

    Neutron diffraction experiments on rare-earth transition metal magnetic alloys Er2 Fe14 B and Er 2 Fe 17 have been carried out at temperatures above and below the ordering temperature (Tc). An anomalously large m...

    R. Kumar, J. Bentley, W. B. Yelon in MRS Online Proceedings Library (1990)

  5. No Access

    Article

    On the Atomic and Magnetic Structure of Er2Fe17

    We present the results of Rietveld analysis on the neutron diffraction intensities of Er2Fe17, which crystallizes in the hexagonal Th2Ni17 phase. Of the reflection sets, h-k ≠ 3n, l = 2n+1 and l = 2n, the former ...

    R. Kumar, W. B. Yelon in MRS Online Proceedings Library (1988)

  6. No Access

    Article

    Synthesis and Structural Characterization of a Hydrated Gallosilicate Zeolite with the Nat-Framework

    Gallosilicate NAT-framework zeolites have been synthesized from Na2O:TMA2O:Ga2O3:SiO2:H2O gels and characterized by chemical analysis and powder X-ray diffraction. The structure of a hydrated material (Orthorhomb...

    D. **e, J. M. Newsam, J. Yang, W. B. Yelon in MRS Online Proceedings Library (1987)