کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7915746 | 1511024 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-Temperature (940â¯Â°C) furnace in 18/20â¯T cold bore magnet
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We present a high-temperature furnace that can work continuously in an 18/20â¯T cold bore magnet. A specially designed liquid nitrogen (LN2) jacket is between the high-temperature parts of the furnace and the liquid helium in the magnet Dewar. With LN2 serving as the cooling medium, the calculated value of radiation received by the liquid helium (LHe) is as low as 0.004â¯W. The furnace can be put into LHe Dewar directly. Together with the magnet, the furnace can provide experimental conditions of a strong static magnetic field and temperatures up to 940â¯Â°C. A cobalt oxide synthesis in solution was carried out at 200â¯Â°C with and without a 15â¯T magnetic field for 8â¯h. Differences in material structure with the applied field were observed in transmission electron micrographs of the products. A Co film sample was treated at 900â¯Â°C with and without a 6.8â¯T magnetic field for 30â¯min. The scanning electron micrographs of the treated samples show that magnetic field had a clear effect on the heat treatment process. These two applications confirmed the performance of the furnace both in high magnetic field and at high temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cryogenics - Volume 89, January 2018, Pages 119-124
Journal: Cryogenics - Volume 89, January 2018, Pages 119-124
نویسندگان
Ze Wang, Yubin Hou, Qiyuan Feng, Hongliang Dong, Qingyou Lu,