Vol. 16, No. 3 (1960)
1960-02-05
CONTENT
1960, 16 (3): 132-142.
doi: 10.7498/aps.16.132
Abstract +
The level spectrum of collective surface oscillations of even-even nuclei, especially the effect of β-degree of freedom on the level spectrum in the strong coupling theory, is studied. It appears that, except the contribution of a series of β-vibration levels, the effect on other levels is small.
1960, 16 (3): 143-154.
doi: 10.7498/aps.16.143
Abstract +
Kirkwood's variational method in the theory of liquids is extended to more general cell model of liquids. The incompleteness in Cohen's theory is thus overcome. It appears that the present theory is able to treat systematically the correlation of molecular motion in the cell model to any degree of approximation. Applied to the one-dimensional case, the theory gives exact result for the free energy. In the three-dimensional case, the lowest order approximation leads to Kirkwood's result, and the first order approximation yields Taylor's result.
1960, 16 (3): 155-159.
doi: 10.7498/aps.16.155
Abstract +
In the prsent paper some of the results of our studies on the formation of cube texture in an iron silicon alloy with silicon content of 3.25% are described. It is found that cube texture in this alloy can be developed either by the process of secondary recrystallization or simply by the process of primary recrystallization. In case of the formation of cube texture by the former process no nucleation process is involved. Nuclei of the (100) [001] orientation are already present after the completion of primary recrystallization, and are surrounded, for most cases, by grains having (110) [001] orientations. Exaggerated growth of cube-oriented grains takes place when the normal growth of other grains are restricted. In case of the formation of a cube texture by primary recrystallization, a spread of cold-rolled cube texture must be present after the last step of cold rolling. Upon final annealing at a low temperature, a recrystallized cube texture by the process of "recrystallization-in-situ" is obtained. The cube texture may be further concentrated with an increase of final annealing temperature.Basing upon the measurements by the conventional magnetic torque method, the amount of (100) [001] texture is calculated to be over 90%.
