155 68

Fe-5Y2O3 조성의 기계적 합금화 분말에 형성된 산화물의 상변태 거동

Title
Fe-5Y2O3 조성의 기계적 합금화 분말에 형성된 산화물의 상변태 거동
Other Titles
Phase Transformation Behavior of Oxide Particles Formed in Mechanically Alloyed Fe-5Y2O3 Powder
Author
김영도
Keywords
ODS(Oxide Dispersion Strengthened); mechanical alloying; nano-sized oxide particle; phase transformation; Y alpha Fe beta O gamma-type phase
Issue Date
2017-05
Publisher
대한금속·재료학회
Citation
대한금속·재료학회지, v. 55, no. 5, page. 357-362
Abstract
The phase transformation behavior of the oxides formed in mechanically alloyed Fe-5Y(2)O(3) powder is investigated. Non-stoichiometric Y-rich and Fe-rich oxides with sizes of less than 300 nm are observed in the mechanically alloyed powder. The diffusion and redistribution reactions of the elements in these oxides during heating of the powder above 800 degrees C were observed, and these reactions result in the formation of a Y3Fe5O12 phase after heating at 1050 degrees C. Thus, it is considered that the Y2O3 powder and some Fe powder are formed from the non-stoichiometric Y-rich and Fe-rich oxides after the mechanical alloying process, and a considerable energy accumulated during the mechanical alloying process leads to a phase transformation of the Y-rich and Fe-rich oxides to Y alpha Fe beta O gamma-type phase during heating.
URI
http://kjmm.org/journal/view.php?doi=10.3365/KJMM.2017.55.5.357https://repository.hanyang.ac.kr/handle/20.500.11754/114129
ISSN
1738-8228; 2288-8241
DOI
10.3365/KJMM.2017.55.5.357
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
Files in This Item:
Fe-5Y2O3 조성의 기계적 합금화 분말에 형성된 산화물의 상변태 거동.pdfDownload
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE