銅単結晶面に電着したFe及びFe-Ni合金の結晶成長
1959 年 28 巻 8 号 p. 466-472
詳細
1959 年 28 巻 8 号 p. 466-472
The crystal growth of Fe and Fe-Ni alloy electrodeposited on electrolytically eched (111), (100), (110) and (311) faces of Cu single crystal is studied by means of electron diffraction. The results obtained are as follows.
(1) Below 4000Å thickness, oriented Fe grows, and at 5000Å thickness, fiber struture which has [111] Fe axis (perpendicular to the substrate surface) as its axis begins to appear.
(2) Orientations of Fe on any of the substrate surfaces mentioned above is mostly formed in such way that the plane of most densely packed atmos of Fe is parallel to that of Cu and rows of most densely packed atmos of Fe are parallel to those of Cu.
(3) On (110) Cu face, (211) Fe face is not exactly parallel to substrate surface, but incline around some axis in (110) Cu face; the angle of inclination depends on deposition conditions.
(4) Iron oxides (mainly γ-Fe2O3) are often produced during electrodeposition.
(5) Fe-Ni is alloy eletrodeposited from a mixed solution of Ni and Fe sulfates. Composition of the alloy is varied by the composition of the solution. When the solution is of 0.75mol/l of Ni sulfate and 0.25 mol/l of Fe sulfate, γ alloy (ƒ. c. c.) of parallel orieniation is formed and when it is of 0.25 mol/l of Ni sulfate and 0.75 mol/l of Fe sulfate, oriented α alloy (b. c. c.) is mainly formed and γ phase appears only at high pH and high bath temperature. These two phases did not coexist in this experiment. Crystal structure, orientation and lattice constant of obtained alloy are examined. Orientations of Fe-Ni (α) alloy are the same with those of Fe.
