Heat capacity of metallic glasses FeNiZr, CoCrZr, PdSi and NiSiB

✍ Scribed by Takeshi Kanomata; Hideharu Endo; Minoru Kuboki; Hisamichi Kimura; Takejiro Kaneko; Tsuyoshi Masumoto

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 290 KB
• Volume: 179-180
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/0921-5093(94)90225-9

✦ Synopsis

The specific heats of Fe72NilsZr10, C072.9Cr17.1Zrlo , Ni78Si10B12 and PdsoSi20 amorphous alloys were measured in the temperature range 77-800 K. The magnetic anomaly of the heat capacity at the ferromagnetic Curie temperature T c was observed for Fe-Ni-Zr alloy, but not for Co-Cr-Zr. The results are discussed in connection with the pressure dependence of T c and magnetic thermal expansion anomaly. Several exothermic and endothermic processes were observed corresponding to the transformation sequence for complete crystallization of Ni-Si-B and Pd-Si alloys. The structural relaxation process appears with a decrease in heat capacity. A discontinuous increase in the specific heat is observed at the glass transition temperature.