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7th Japan-Brazil Syposium on Dust Processing-Energy-Environment and 1st International Seminar On Self-Reducing and Cold Bonded Agglomeration — vol. 7, num.7 (2008)

Título

IN-SITU OBSERVATION OF THE REACTION BETWEEN IRON AND CARBON IN TEM

IN-SITU OBSERVATION OF THE REACTION BETWEEN IRON AND CARBON IN TEM

Autoria

Ishikawa, Nobuhiro; Kimura, Takashi; Aoyagi, Takeshi; Furuya, Kazuo; Harada, Takahiro; Inami, Takashi

Ishikawa, Nobuhiro
Ishikawa, Nobuhiro

Eu sou esse autor

Kimura, Takashi
Kimura, Takashi

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Aoyagi, Takeshi
Aoyagi, Takeshi

Eu sou esse autor

Furuya, Kazuo
Furuya, Kazuo

Eu sou esse autor

Harada, Takahiro
Harada, Takahiro

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Inami, Takashi
Inami, Takashi

Eu sou esse autor

DOI

10.5151/5463-5463-0011

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Resumo

The in-situ observation of the reaction between iron and carbon in TEM was carried out. The contact between iron and carbon was realized utilizing the carbon deposition on the surface of iron and FIB enabled to prepare TEM specimens. The reaction occurred beyond 823K as the precipitation from the boundary between iron and carbon and the precipitates grew into the carbon layer. The concentration of the iron in the precipitates became lower with the increase of distance from the boundary. The growth rate of the precipitates was 100-200nm/min at 873K. The images of the precipitates and the results of EDS indicated the precipitates were transformation of the carbon from amorphous to crystal promoted by the diffusion of the iron atoms.

 

The in-situ observation of the reaction between iron and carbon in TEM was carried out. The contact between iron and carbon was realized utilizing the carbon deposition on the surface of iron and FIB enabled to prepare TEM specimens. The reaction occurred beyond 823K as the precipitation from the boundary between iron and carbon and the precipitates grew into the carbon layer. The concentration of the iron in the precipitates became lower with the increase of distance from the boundary. The growth rate of the precipitates was 100-200nm/min at 873K. The images of the precipitates and the results of EDS indicated the precipitates were transformation of the carbon from amorphous to crystal promoted by the diffusion of the iron atoms.

Palavras-chave

In-situ analysis; TEM; Carbon/ iron interface; Carburization.

In-situ analysis; TEM; Carbon/ iron interface; Carburization.

Como citar

Ishikawa, Nobuhiro; Kimura, Takashi; Aoyagi, Takeshi; Furuya, Kazuo; Harada, Takahiro; Inami, Takashi. IN-SITU OBSERVATION OF THE REACTION BETWEEN IRON AND CARBON IN TEM , p. 85-90. In: 7th Japan-Brazil Syposium on Dust Processing-Energy-Environment and 1st International Seminar On Self-Reducing and Cold Bonded Agglomeration, São Paulo, 2008.
ISSN: - , DOI 10.5151/5463-5463-0011