✍ Scribed by Y. Takahara; H. Matsuda
No coin nor oath required. For personal study only.
Reversible structural relaxation in two Fe-B-Si amorphous alloys, Fe7sBTSil5 and Fe75B10Si15, has been studied through measurements of the electrical resistance and relaxation enthalpy using a differential scanning calorimeter. Both alloys exhibited reversible changes of these physical properties due to the reversible relaxation. Larger reversible changes were observed in Fe78B7Si15 than in Fe75B10Sias. This result can be well explained by the idea that the reversible relaxation is caused by changes in chemical short-range order among iron and silicon atoms according to Dubois and Le Caer's structural model of amorphous alloys. The activation energy spectrum characterizing the reversible relaxation process was obtained from reversible enthalpy changes during isothermal annealing at 500 K. It results in an asymmetric gaussianlike distribution with a peak maximum at 1.7 eV.
📜 SIMILAR VOLUMES
The passive layers formed spontaneously via air contact on the surface of amorphous Fe62 Crlo Nis X20 (X = S&P) alloys were studied by X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). The results for Fe61 Crio Nig Sim showed the formation of a protective film, mainly con