Zobrazeno 1 - 10
of 51
pro vyhledávání: '"T E Cranshaw"'
Publikováno v:
Clay Minerals. 25:289-301
The preparation of green rusts from sulphate solutions and representative M6ssbauer spectra are described. As the samples oxidized readily, attention focused on the M6ssbauer parameters at liquid nitrogen and helium temperatures. The spectra recorded
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics: Condensed Matter. 2:2743-2750
Spectra are presented of four alloys of composition Ni3Fe1-xAlx with x=0.04, 0.10, 0.25, and 0.5, and of one alloy with composition Ni3Fe0.96Mn0.04. For the Al substituted alloy with x=0.25, and for the Mn alloy, the temperature dependences of the hy
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics: Condensed Matter. 1:665-672
Be is a small atom (V=4.89 cm3 mol-1) compared with Fe and Sn (V=7.09 and 16.30 cm3 mol-1 respectively). As a result, size mismatch theories predict an attractive component of the potential between Be and Sn when dissolved in iron. The author present
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics E: Scientific Instruments. 21:54-58
The 'current integration' method is often used to detect small changes in the intensity of radiation when photon rates are too high for the use of conventional nucleonic counting equipment. When the measurement is made repeatedly in a cyclic fashion,
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics E: Scientific Instruments. 7:497-505
A brief account of the M?ssbauer effect and its applications is given. The most popular types of spectrometer are described and their deficiencies considered in some detail. The problems of the reduction of data are dealt with, and the problems of ob
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics F: Metal Physics. 17:1645-1657
Mossbauer spectra of 119Sn dissolved in binary iron alloys with elements Co, Ni, Cu, Sn, Ga, Ge are used to derive the interaction potentials existing between the tin atom and the atoms of the alloying element. It is shown that the Miedema-Krolas the
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics F: Metal Physics. 17:967-984
Mossbauer spectra of nearly-single-crystal specimens of composition near Ni3Fe are presented. It is shown that the components of the spectra due to iron on nickel sites and nickel on iron sites can be identified and that iron atoms in the first-neigh
Autor:
T. E. Cranshaw
Publikováno v:
Le Journal de Physique Colloques. 37:C6-391
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics: Condensed Matter. 1:829-846
Mossbauer spectra of 119Sn at a concentration of 0.2% in alloys of iron with Si, Al and Rh are presented. The strength of some of the interaction potentials between Sn and Si, Al and Rh are obtained, and some details of the iron-rich corner of the te
Autor:
T E Cranshaw
Publikováno v:
Journal of Physics F: Metal Physics. 18:1505-1513
The aggregation at 673 K of Pd atoms in the first-neighbour shell of a 119Sn atom dissolved in iron is followed by Mossbauer spectroscopy of 119Sn. The author deduces a jump frequency of Pd atoms of 3.5*10-4 s-1 leading to a diffusion constant of D=3