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High-density REBCO single-phase superconducting target material and preparation method thereof
The embodiment of the invention discloses a high-density REBCO single-phase superconducting target material and a preparation method thereof. The method comprises the following steps: S1, respectively dissolving a lanthanide metal compound, a barium compound and a copper compound in an acid solution to obtain a lanthanide metal solution, a barium solution and a copper solution; mixing the lanthanide metal solution, the barium solution and the copper solution to obtain a mixed solution; the molar ratio of lanthanide metal to barium to copper in the mixed solution is 1: 2: 3; s2, excessive oxalic acid is added into the mixed solution, and then the pH of the mixed solution is adjusted to 5 with ammonia water; s3, the mixed solution is heated and aged, and precipitates are generated in the mixed solution; s4, washing and drying the precipitate to obtain precursor powder; s5, calcining the precursor powder to obtain REBCO single-phase nano powder; s6, the REBCO single-phase nano powder is subjected to ball milling treatment; s7, performing compression molding on the ball-milled REBCO powder to obtain an REBCO biscuit; and S8, the REBCO biscuit is subjected to spark plasma sintering, and the high-density REBCO single-phase superconducting target material is obtained.
本发明实施例公开了高致密REBCO单相超导靶材及其制备方法；方法包括步骤：S1、镧系金属化合物、钡化合物、铜化合物分别溶解在酸溶液中，得到镧系金属溶液、钡溶液和铜溶液；将镧系金属溶液、钡溶液和铜溶液混合，得到混合溶液；混合溶液中镧系金属、钡、铜的摩尔比为1:2:3；S2、混合溶液中加入过量的草酸，然后用氨水调节混合溶液的pH至5；S3、混合溶液加热老化，混合溶液中生成沉淀物；S4、沉淀物经洗涤、干燥，得到前驱体粉末；S5、前驱体粉末经煅烧得到REBCO单相纳米粉末；S6、REBCO单相纳米粉末经球磨处理；S7、球磨后的REBCO粉末模压成型，得到REBCO素坯；S8、REBCO素坯经放电等离子烧结，得到高致密REBCO单相超导靶材。
High-density REBCO single-phase superconducting target material and preparation method thereof
The embodiment of the invention discloses a high-density REBCO single-phase superconducting target material and a preparation method thereof. The method comprises the following steps: S1, respectively dissolving a lanthanide metal compound, a barium compound and a copper compound in an acid solution to obtain a lanthanide metal solution, a barium solution and a copper solution; mixing the lanthanide metal solution, the barium solution and the copper solution to obtain a mixed solution; the molar ratio of lanthanide metal to barium to copper in the mixed solution is 1: 2: 3; s2, excessive oxalic acid is added into the mixed solution, and then the pH of the mixed solution is adjusted to 5 with ammonia water; s3, the mixed solution is heated and aged, and precipitates are generated in the mixed solution; s4, washing and drying the precipitate to obtain precursor powder; s5, calcining the precursor powder to obtain REBCO single-phase nano powder; s6, the REBCO single-phase nano powder is subjected to ball milling treatment; s7, performing compression molding on the ball-milled REBCO powder to obtain an REBCO biscuit; and S8, the REBCO biscuit is subjected to spark plasma sintering, and the high-density REBCO single-phase superconducting target material is obtained.
本发明实施例公开了高致密REBCO单相超导靶材及其制备方法；方法包括步骤：S1、镧系金属化合物、钡化合物、铜化合物分别溶解在酸溶液中，得到镧系金属溶液、钡溶液和铜溶液；将镧系金属溶液、钡溶液和铜溶液混合，得到混合溶液；混合溶液中镧系金属、钡、铜的摩尔比为1:2:3；S2、混合溶液中加入过量的草酸，然后用氨水调节混合溶液的pH至5；S3、混合溶液加热老化，混合溶液中生成沉淀物；S4、沉淀物经洗涤、干燥，得到前驱体粉末；S5、前驱体粉末经煅烧得到REBCO单相纳米粉末；S6、REBCO单相纳米粉末经球磨处理；S7、球磨后的REBCO粉末模压成型，得到REBCO素坯；S8、REBCO素坯经放电等离子烧结，得到高致密REBCO单相超导靶材。
High-density REBCO single-phase superconducting target material and preparation method thereof
高致密REBCO单相超导靶材及其制备方法
ZHU LIN (author) / LIU MIAO (author) / SUN BENSHUANG (author) / LIU YANG (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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