電析Pd-Ni-P金属ガラスの熱処理による結晶化挙動

抄録

Crystallization behavior of electrodeposited Pd-Ni-P metallic glass films in the supercooled liquid region was investigated. The Pd₄₀Ni₄₀P₂₀, which has the highest glass formability, and other metallic glass Pd₄₄Ni₃₉P₁₇ and Pd₄₁Ni₄₂P₁₇ were prepared. The crystallization temperature (T_x) of Pd₄₄Ni₃₉P₁₇ and Pd₄₁Ni₄₂P₁₇ were lower than that of Pd₄₀Ni₄₀P₂₀ by differential scanning calorimetry (DSC) analysis. X-ray diffractometry (XRD) patterns show that all samples were crystallized after isothermal annealing below T_x. The Pd₅P₂ and Ni₃P were observed using XRD analysis after annealing of Pd₄₀Ni₄₀P₂₀ and Pd₄₄Ni₃₉P₁₇ at 603 K for 60 min and 30 min, respectively. Furthermore, in Pd₄₄Ni₃₉P_17, the Pd₂Ni₂P was observed after annealing at 603 K for 120 min.