기계적 합금화법을 이용한 FeTi 수소저장 합금의 개발 = Processing of FeTi Hydrogen Storage Alloy via Mechanical Alloying

다국어 초록 (Multilingual Abstract)

In this study, Fe and Ti powders are mechanically alloyed in order to form the FeTi intermetallic compound at ambient temperatures.
Fe and Ti powders were weighted to 1:1 molar ratio and the mecahnical alloying was carried out using the Spex mill.
The alloying time was varied from 5 hours to 60 hours.
Alloying up to 60 hours did not lead to the formation of single phase FeTi compound, instead the peak broadening continued.
Most of the unalloyed Fe phase was found to be due to the contaminations from steel container and balls.
The heat treatment of the mechanically alloyed powder to 500℃ at a heating rate of 10℃/min followed by furnace cooling in hygrogen atmosphere resulted in the conversion of unreacted Fe and Ti to FeTi as well as activation.
The absorption temperature was kept at 30℃.
The absorption pressure was measured to be 15.5 atm, the desorption pressure was measured to be 5.4 atm.

목차 (Table of Contents)

• Ⅰ. 서 론
• Ⅱ. 실 험 방 법
• Ⅲ. 실험결과 및 고찰
• Ⅳ. 결 론
• Ⅴ. 참 고 문 헌
• Ⅵ. Abstract