Structure and configuration of lattice defects in tungsten-cobalt electrodeposits were examined under transmission electron microscope. The layer as deposited contained numerous stacking faults and twin faults in each grain, giving martensitelike structure.
As the results of electron diffraction analysis, it was found that the crystal structure of the deposits consisted of hexagonal α-Co solid solution oversaturated with tungsten and that after heating at 600°C for 2hr., precipitation of Co₃W appeared in α-Co phase. However, the appearance of Co₃W phase was not evidently detected under electron microscope, even though it was determined by electron diffraction.
Hardening of the deposits after heating seemed to be attributed to the precipitation of Co₃W.

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As the results of several operations using various types and sizes of anode, thin film deposition of Fe-Ni alloys on fine copper wire was successful by using the electrolytic cell holding conical platinum ring anode as shown in Fig. 4.
The electrolytic cell shown in Fig. 1 was used in the previous reports. However, it was clear that the current distribution in the above cell was more dense in the first half part (adjacent to lead-in) of fine cathode wire due to its high internal resistance. Then, many types of anode were devised such as cylindrical ring (30cm and 10cm in length), the anode having separated circuits for supplying uniform current density to each ring, conical anode (10cm in length), etc.

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BaTiO₃ rods were sprayed with a commercial rod spray gun and the physical, mechanical and electrical properties of the deposited film were investigated under various spraying conditions.
As the results of X-ray analysis of the film, the following 3 sorts of phases were determined according to the relation between the film structure and the distance from nozzle to substrate.
When the distance was up to 8cm, the degree of amorphous was lower with the decrease of the distance between the gun nozzle and substrate. When the distance was 8-10cm, a structural change rapidly occurred, whereby the structure of film was converted into tetragonal system at 10cm. When the distance was beyond 10cm, the degree of amorphous was gradually higher with the increase of the distance.
The tensile strength of the film was much greater than that of flame sprayed alumina.
The maximum dielectric constant attainable was 350, but higher values of dielectric constant will be obtained under some other spraying conditions.
The flame sprayed BaTiO₃ did not represent a transition point such as Curie point of 120°C as seen in the conventional BaTiO₃. The temperature coefficients of capacitance at the temperatures of -55-160°C ranged from 100 to 200ppm/°C, depending on the spraying conditions.
Peculiar characteristics of the film was observed when the film was subjected to aging tests at various temperatures. The rate of decrease of dielectric constant was lower when the aging temperature was higher.

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Good results were obtained in the application of diamond grindstones produced by electrodeposition to honing. These stones were superior to ordinary vitrified stones in their life (almost 20times as long as that of the latter) and honing power. The above properties depended in their manufacturing processes such as the depth of the plated layer wherein diamond particles are embedded, conditions of electro-deposition (for example, kinds of baths which have effects on the hardness of deposit), etc.
For instance, the following stone proved effective in the honing of cast iron FC-20 and resulted in the life of 20times as long as that of ordinary vitrified stones; the ratio of the depth of plated layer in the above stone was about 90% (based on the average shuter diameter of diamond particles), and the hardness of bright nickel plated layer was about Hv 400.

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