Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles: DFG German National Licenses  (3)
  • 1985-1989  (3)
  • 1986  (3)
Source
  • Articles: DFG German National Licenses  (3)
Material
Years
  • 1985-1989  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    X-ray diffraction under ultrahigh pressure generated with sintered diamond anvils (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 2201-2204 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: High pressures generated with sintered diamond as the second stage anvils in the "6-2 type'' double-stage apparatus have been calibrated by x-ray diffraction with synchrotron radiation. Sintered diamond has permitted a fair amount of x-ray transparency although the chemical analysis shows the existence of 14-wt. % Co binder. Anvils with a top face of 0.7 mm diam performed the generation of 60 GPa, which was confirmed on the lattice parameters of B1 and B2 phases of NaCl. No appreciable plastic deformation of the used anvils has certified the higher pressure generation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337178
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    High temperature X-ray study of single crystal stishovite synthesized with Li2WO4 as flux (1986)
    Springer
    Physics and chemistry of minerals 13 (1986), S. 146-151 
    Details
    ISSN: 1432-2021
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Abstract Single crystal stishovite with a square prismatic habit and maximum length 0.8 mm was grown from α-quartz at 120 kbar and ∼1,300° C. Li2WO4, chosen as a result of a previous experiment in growing coesite, was also successful as flux for stishovite. Single crystal X-ray structure analysis of the crystals thus obtained has been carried out at high temperatures under ambient pressure. Lattice constant measurements give a larger thermal expansion coefficient along the a-axis than along the c-axis. The bond distances and bond angles show a decreasing distortion of the SiO6 octahedron with increasing temperature. The increasing amplitude of thermal vibrations of oxygen atoms with increasing temperature results in increasing O-O repulsion in the basal plane, which explains the observed crystallographic changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00308155
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    57Fe Mössbauer study under high pressure; ε-Fe and Fe2O3 (1986)
    Springer
    Hyperfine interactions 29 (1986), S. 1583-1586 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using diamond anvil cell, the57Fe Mössbauer spectra of pure iron foil and α-Fe2O3 powder under high pressure have been measured at room temperature.57Fe Mössbauer spectra of α-Fe were measured from 15 GPa to 45 GPa. Isomer shift value decreased and the quadrupole splitting slightly increased as the pressure increased.57Fe Mössbauer spectra of Fe2O3 under high pressure up to 72 GPa were observed. Above 52 GPa, the new lines appeared at the center portion of the spectrum corresponding to the new high pressure phase. The spectrum of new high pressure phase consisted of 6-line splitting and doublet, suggesting the existence of the two different kinds of iron states in it.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02399539
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...