서지주요정보
방향성 규소강판에서 Forsterite coating 한 후의 자기적 성질의 변화 = The change in magnetic properties after forsterite coating in grain-oriented silicon steel
서명 / 저자 방향성 규소강판에서 Forsterite coating 한 후의 자기적 성질의 변화 = The change in magnetic properties after forsterite coating in grain-oriented silicon steel / 성기숙.
저자명 성기숙 ; Sung, Gi-Suk
발행사항 [서울 : 한국과학기술원, 1985].
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소장정보

등록번호

4103310

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8523

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초록정보

Decarburization degree and the change in magnetic properties after forsterite coating in grain-oriented silicon steel has been studied. Decarburization temperatures ranged from 800℃ to 950℃ and dew-points from 20℃ to 50℃, respectively in $80%N_2-20%H_2$ gas atmosphere. Forsterite coating was performed by dipping the decarburized specimens into MgO slurry and annealing at high temperature after drying. The oxide films were formed on the surface during decarburization anneal, and changed in morphology and structure as decarburization atmosphere varied. Changes in magnetic properties after forsterite coating which was performed by the reaction of MgO with $SiO_2$ in the oxide films are believed to be due to the difference in effective residual tensile stress-state and surface roughness. Residual carbon contents increased with decarburization temperature and decreased with dew-point in the ranges considered. So the best conditions for decarburization in $80%N_2-20%H_2$ gas atmosphere are decarburization temperature of 800℃ and dew-point of 50℃. However, the specimen which decarburized at temperature of 850℃ with dew-point of 40℃ in 80%N-20%H gas atmosphere has shown the best magnetic properties.

서지기타정보

서지기타정보
청구기호 {MMS 8523
형태사항 [iii], 70 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Gi-Suk Sung
지도교수의 한글표기 : 임호빈
지도교수의 영문표기 : Ho-Bin Im
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 68-70
주제 Magnetic properties.
Surface roughness.
Forsterite.
Decarburization of steel.
자기적 성질. --과학기술용어시소러스
자성 합금. --과학기술용어시소러스
산화층. --과학기술용어시소러스
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