Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-density MgB2 block material
The invention discloses a preparation method of a high-density MgB2 block material. The method comprises the following steps: 1, respectively grinding B powder and Mg powder to obtain ground B powder and ground Mg powder; 2; pressing the ground powder B into a block B; thirdly, ground Mg powder is laid on the periphery of the block B, and a mixed block is obtained through pressing; and fourthly, the mixed block is subjected to hot sintering treatment, and the high-density MgB2 block is obtained. According to the method, the B powder is pressed into the compact B block, then the Mg powder is laid around the compact B block for hot sintering treatment, the Mg powder is diffused to the B block located in the center and rapidly generates the MgB2 block, gaps generated when MgB2 is generated are concentrated outside, and therefore the high-density MgB2 block is obtained, Mg and B residues are not prone to occurring, and the high-density MgB2 block is obtained. The prepared MgB2 block material has high density, high purity and strong crystallinity, and is suitable for large-scale industrial production.
本发明公开了一种高致密MgB2块材的制备方法，该方法包括：一、分别将B粉、Mg粉进行研磨获得研磨B粉及研磨Mg粉；二；将研磨B粉压制成B块；三、将B块周围铺设研磨Mg粉并压制得到混合块体；四、将混合块体进行热烧结处理得到高致密MgB2块材。本发明先将B粉压制成致密的B块后再在其周围铺设Mg粉进行热烧结处理，使得Mg粉向位于中心的B块扩散并快速生成MgB2块材，而生成MgB2时产生的空隙集中在外部，从而获得高致密MgB2块材，且不易发生Mg、B的残留，制备得到的MgB2块材具有高致密度、高纯度和强结晶性，适用于大规模工业化生产。
Preparation method of high-density MgB2 block material
The invention discloses a preparation method of a high-density MgB2 block material. The method comprises the following steps: 1, respectively grinding B powder and Mg powder to obtain ground B powder and ground Mg powder; 2; pressing the ground powder B into a block B; thirdly, ground Mg powder is laid on the periphery of the block B, and a mixed block is obtained through pressing; and fourthly, the mixed block is subjected to hot sintering treatment, and the high-density MgB2 block is obtained. According to the method, the B powder is pressed into the compact B block, then the Mg powder is laid around the compact B block for hot sintering treatment, the Mg powder is diffused to the B block located in the center and rapidly generates the MgB2 block, gaps generated when MgB2 is generated are concentrated outside, and therefore the high-density MgB2 block is obtained, Mg and B residues are not prone to occurring, and the high-density MgB2 block is obtained. The prepared MgB2 block material has high density, high purity and strong crystallinity, and is suitable for large-scale industrial production.
本发明公开了一种高致密MgB2块材的制备方法，该方法包括：一、分别将B粉、Mg粉进行研磨获得研磨B粉及研磨Mg粉；二；将研磨B粉压制成B块；三、将B块周围铺设研磨Mg粉并压制得到混合块体；四、将混合块体进行热烧结处理得到高致密MgB2块材。本发明先将B粉压制成致密的B块后再在其周围铺设Mg粉进行热烧结处理，使得Mg粉向位于中心的B块扩散并快速生成MgB2块材，而生成MgB2时产生的空隙集中在外部，从而获得高致密MgB2块材，且不易发生Mg、B的残留，制备得到的MgB2块材具有高致密度、高纯度和强结晶性，适用于大规模工业化生产。
Preparation method of high-density MgB2 block material
一种高致密MgB2块材的制备方法
CHEN ZHENYU (Autor:in) / WANG QINGYANG (Autor:in) / ZHANG SHENGNAN (Autor:in) / FENG JIANQING (Autor:in) / LIU JIXING (Autor:in) / LI JIANFENG (Autor:in) / ZHANG RUI (Autor:in) / ZHANG PINGXIANG (Autor:in)
27.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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