http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
최용석,조성수,윤기갑,이완수,이영,김종오,Choi, Y.S.,Cho, S.S.,Yoon, G.G.,Lee, W.S.,Li, Ying,Kim, C.O. 한국재료학회 2001 한국재료학회지 Vol.11 No.8
비정질 $Tb_{45.7}$ $Fe_{54.3-x}$ /$Co_{x}$ 및 $Tb_{50.2}$ /$_{Fe}$ 49.8-x/$Co_{x}$ (0$\leq$$x\leq$9.6) 합금박막의 자기적 특성 및 자기변형특성에 대하여 체계적으로 조사하였다. 박막제조는 Fe 타게트에 Tb, Co 소편으로 구성된 복합타겟 방식의 rf 마그네트론 스퍼터링법에 의해 제조하였다. XRD 조사에의 한 박막의 미세구조는 잘 발달된 비정질 구조를 나타내었다. $Tb_{45.7}$ $Fe_{54.3-x}$ $Co_{x}$ (x=2~4)에서 우수한 고유자기변형특성 및 저자기장자기변형특성을 얻었다. 즉, 100 Oe의 저자장에서 130ppm의 자기변형을 나타내었으며 고유자기변형 (인가 자기장, 5 kOe)은 330ppm에서 400ppm으로 증가하였다. The magnetic and magnetostrictive properties of amorphous Tb/sub 45.7/Fe/sub 54.3-x/Co/sub x/ and Tb/sub 50.2/Fe/sub 49.8-x/Co/sub x/ (0≤x≤9.6) thin films have systematically been investigated. The films were fabricated by rf magnetron sputtering using a composite target which consists of a Fe plate and Tb, Co chips. The microstructure mainly consists of an amorphous phase. Excellent intrinsic and low magnetic-field-magnetostrictive properties were achieved in Tb/sub 45.7/Fe/sub 54.3-x/Co/sub x/ and Tb/sub 50.2/Fe/sub 49.8-x/Co/sub x/ (0≤x≤9.6). The magnetostriction of 130 ppm was obtained with low field of 100 Oe. The intrinsic magnetostriction(applied field, 5 kOe) were increased from 330ppm to 400ppm.
큐폴라의 예열대영역과 (豫熱帶領域) 유사한 조건하에서 탄소강설의 (炭素鋼屑) 산화반응속도에 관한 연구 (2) - 비등온적 (非等溫的) 연구 -
조남돈,조성수,김호찬 ( N . D . Cho,S . S . Cho,H . C . Kim ) 한국주조공학회 1986 한국주조공학회지 Vol.6 No.3
Many of steel oxidations concerned with the iso-thermal oxidation, and few reports on the non -isothermal oxidation have been published. Then the auther investigated the oxidation of non-isothermal type: from 500℃ to 1070℃by CO-CO₂-N₂ mixed gases which approximate the distribution of gases in the preheating zone of the coke and the coke-gas cupola. The results obtained are as follows: 1) The effect of carbon on the oxidation rate of steels is to increase slightly as increasing temperature. 2) The observed rate of oxidation using cubic specimen is a little greater than cylindrical or spheric specimen. 3) Weigh gain of oxidation at the center of coke cupola is a little less than that of wall, but the center of coke-gas cupola it is more increased than above. 4) The rate of non-isothermal oxidation can be expressed by the following equation. 수식 5) The Al₂O₃-bentonite coating mixture for the oxidation resistance is more efficient than the cement or the CaO-bentonite mixture.