Abstract
This report has been written as the first section of the major subject “The Studies on the Polished Surface of Metals.” The experiments have been carried out for the purpose of investigating the cause of appearance of halo-ring patterns, which is almost common to the polished surfaces of various kinds of metals, in a cathode-ray diffraction.
With respect to copper, the author observed an obvious effect of polishing accompanying the simple grinding operation. This effect is limited in a very shallow superficial region, which appears to have been originated from the local melting. By the succession of fine grinding process, the structure of the surface transforms itself by two stage. The first one has a very peculiar structure, which might be taken to be a simple triclinic lattice constructed by Cu2-molecules, being designated as the “transitional lattice” by the author. This structure retransforms itself into the second one, which is much like the chain structure of organic molecules, and shows the characteristic tripoint reflection patterns, the dimensions of which being almost the same as those of the halo-ring patterns cited above.
