Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Determination of the Degree of Alloying by Detection of Residual Ferromagnetic Elements for Intermetallic Alloys Processed by Mechanical Alloying

잔류 자성원소 검출에 의한 금속간화합물의 기계적 합금화 공정에서의 합금화 정도 해석

  • Ur, Soon-Chul (Dept. of Materials Science & Engineering/Nano Technology Lab., Chungju National University)
  • 어순철 (충주대학교 신소재공학과/나노기술연구소)
  • Published : 2003.09.01
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Abstract

Mechanical alloying(MA) process using elemental powders followed by hot pressing has been applied to some intermetallic alloy system containing ferromagnetic elements, such as NiAl and $FeSi_2$. A modified thermogravimetric analysis (TGA) technique was used to investigate the degree of alloying in milled powders and hot consolidated specimens as well as heat-treated bulk specimens. It is shown that the measurement of Curie temperatures in MA intermetallic powders and consolidated specimens containing ferromagnetic components, when determined as a function of milling and heat treatment parameters, can give some insight into the progress and mechanism of alloying.

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References

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