Eutectic α-Fe2Si5andε-FeSi Grown by the Czochralski Method from Arc Melt

Autor: Kou Kurosawa, Yasuo Takigawa, Satoru Noguchi, Masato Ohmukai, Mayumi Tode
Rok vydání: 2002
Předmět:
Zdroj: Japanese Journal of Applied Physics. 41:3851-3853
ISSN: 1347-4065
0021-4922
Popis: We have grown eutectic bulk crystals of α-Fe2Si5 and e-FeSi by means of the Czochralski method from an arc melt with a tungsten rod. This method has the advantages of a one-step growth process and of the possible control of the crystal size. We obtained a crystal whose diameter was as large as 5 mm. Obtained crystals have a fibrous structure of e-FeSi in an α-Fe2Si5 matrix. The e-phase forms into fine rods of 1.2 µm width, which were densely distributed in the α-phase. The microstructure can be transformed in single-phase β-FeSi2 upon thermal annealing. The X-ray diffraction pattern of the obtained β-phase was also presented.
Databáze: OpenAIRE