電解Co-Pメッキ皮膜の熱処理による相変化
1967 年 18 巻 4 号 p. 142-145
詳細
1967 年 18 巻 4 号 p. 142-145
The phase changes in electrolytic Co-P deposits during heat treatment are reported in this paper.
The experimental methods in thermal, magnetic, and X-ray analyses were the same as those in the previous reports. The results obtained were as follows:
(1) The hardness at each temperature during heating or cooling was measured with Micro Vickers Hardness Tester for high temperature. As the results, the maximum hardness was confirmed to be at about 380°C.
(2) The exothermic changes of these deposits showed similar behavior to that of electroless Ni-P deposits.
Judging from the X-ray diffraction pattern for electrolytic Co-P deposits, it was possible to confirm that cobalt phosphide had been formed at the temperature of exothermic change.
(3) Susceptibility of electrolytic Co-P deposits at room temperature was lower, as compared with that of electrolytic pure Co deposits.
The curve for magnetic analysis in the heated state showed that the susceptibility rapidly increased at 310°C.
