研究論文
ニッケル－鉄合金めっき皮膜の熱膨脹特性
2006 年 57 巻 10 号 p. 733
詳細
2006 年 57 巻 10 号 p. 733
We investigated thermal expansion properties of Ni-Fe alloy electrodeposits, which are anticipated for use as low thermal expansion materials.
Thick and crack-free Ni-Fe alloy electrodeposits with 25 to 58mass% Fe contents were obtained from sulfate/chloride electrolytes with additives, saccharin and malonic acid. The linear expansion coefficients of the electrodeposited Ni-Fe alloy pipes reduced with increasing Fe contents as melted alloys. For the Ni-58mass%Fe alloy electrodeposits, the linear expansion coefficient exhibited 8.6×10−6/ºC for the as-plated specimen and approximately 7×10−6/ºC for the alloys annealed above 350ºC.
