機械的 合金化 方法에 의한 Fe-Si 合金製造에 關한 硏究

• 영문명: A study on the synthesis of Fe-Si alloy by mechanical alloying
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 전훈(Jun Hoon) 황성민(Hwang Sung Min) 이성만(Lee Sung Man)
• 간행물 정보: 『산업기술연구』vol.19, 1~7쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 1999.09.30

영문 초록

The microstructural evolution during mechanical alloying of elemental Fe and Si powders, average composition Fe₃₀Si₇₀ and Fe₅₀Si₅₀, has been investigated by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Differential scanning calorimetry (DSC). Mechanical alloying was performed by using a SPEX 8000 Mixer/Mill under argon atmosphere with/without hexane as a process control agent (PCA). In the presence of PCA, the milling process was dominated by fracture resulting in the decrease in particle size to about 1㎛. The structural development with milling time depended on the average composition of starting powders. The mixture of Fe₅₀Si₅₀ and Fe₃₀Si₇₀ resulted in the formation of FeSi(ε-phase) and FeSi₂(β-phase), respectively. In the case of Fe₃₃.₃Si₆₆.₇ a mixture and FeSi₂(β)was formed. These results were discussed by considering the thermodynamics and kinetics concerning the milling process.

목차

Abstract

1. 서론

2. 실험방법

3. 결과 및 고찰

4. 결론

참고문헌

키워드

기계적 합금 열전 재료 공정제어제β-FeSi₂ mechanical alloying thermoelectric material PCA