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Preparation method of Bi2212 precursor powder with preferred orientation
The invention discloses a preparation method of Bi2212 precursor powder with preferred orientation, which comprises the following steps: performing low-temperature sintering on Bi2212 initial powder without grinding, or performing low-temperature sintering and grinding on the Bi2212 initial powder, or performing high-temperature sintering on the Bi2212 initial powder without grinding to prepare the Bi2212 precursor powder with (020) (or (200)) preferred orientation. The simple and stable preparation method of the Bi2212 precursor powder with (020) (or (200)) preferred orientation is found on the basis of defining the sintering effect and the grinding mechanism of the Bi2212 precursor powder at different temperature sections in the earlier stage and bypassing the thought that the powder must be subjected to multiple times of sintering and multiple times of grinding in the conventional preparation, so that the preparation efficiency of the Bi2212 precursor powder is greatly improved, and the preparation cost of the Bi2212 precursor powder is reduced. And rapid application in preparation of Bi2212 superconducting powder is facilitated.
本发明公开了一种具有择优取向的Bi2212前驱粉末制备方法，该方法将Bi2212初始粉末进行低温烧结不研磨，或者将Bi2212初始粉末进行低温烧结和研磨，或者将Bi2212初始粉末进行高温烧结不研磨，制备得到具有(020)(或(200))择优取向的Bi2212前驱粉末。本发明在明确Bi2212前驱粉体前期不同温度段烧结作用和研磨机理的基础上，绕开常规制备中粉体必须先后经过多次烧结并结合多次研磨的思路，找到了具有(020)(或(200))择优取向的Bi2212前驱粉末简易且稳定的制备方法，大大提高Bi2212前驱粉末的制备效率，有利于在Bi2212超导粉末制备中得到快速应用。
Preparation method of Bi2212 precursor powder with preferred orientation
The invention discloses a preparation method of Bi2212 precursor powder with preferred orientation, which comprises the following steps: performing low-temperature sintering on Bi2212 initial powder without grinding, or performing low-temperature sintering and grinding on the Bi2212 initial powder, or performing high-temperature sintering on the Bi2212 initial powder without grinding to prepare the Bi2212 precursor powder with (020) (or (200)) preferred orientation. The simple and stable preparation method of the Bi2212 precursor powder with (020) (or (200)) preferred orientation is found on the basis of defining the sintering effect and the grinding mechanism of the Bi2212 precursor powder at different temperature sections in the earlier stage and bypassing the thought that the powder must be subjected to multiple times of sintering and multiple times of grinding in the conventional preparation, so that the preparation efficiency of the Bi2212 precursor powder is greatly improved, and the preparation cost of the Bi2212 precursor powder is reduced. And rapid application in preparation of Bi2212 superconducting powder is facilitated.
本发明公开了一种具有择优取向的Bi2212前驱粉末制备方法，该方法将Bi2212初始粉末进行低温烧结不研磨，或者将Bi2212初始粉末进行低温烧结和研磨，或者将Bi2212初始粉末进行高温烧结不研磨，制备得到具有(020)(或(200))择优取向的Bi2212前驱粉末。本发明在明确Bi2212前驱粉体前期不同温度段烧结作用和研磨机理的基础上，绕开常规制备中粉体必须先后经过多次烧结并结合多次研磨的思路，找到了具有(020)(或(200))择优取向的Bi2212前驱粉末简易且稳定的制备方法，大大提高Bi2212前驱粉末的制备效率，有利于在Bi2212超导粉末制备中得到快速应用。
Preparation method of Bi2212 precursor powder with preferred orientation
一种具有择优取向的Bi2212前驱粉末制备方法
LI ZHENBAO (author) / LIU GUOQING (author)
2023-11-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Sintering of fibrous barium titanate powder compacts with preferred orientation
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Preferred Orientation Analysis in Textured Materials
| British Library Online Contents | 1993
| British Library Online Contents | 1996