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Method for preparing high-performance REBCO high-temperature bulk superconductor based on layered precursor blank
The invention provides a method for preparing a high-performance REBCO high-temperature superconducting bulk material based on a layered precursor blank, and relates to the technical field of high-temperature superconducting materials, and the method comprises the steps: obtaining an original medicine in a preset molar ratio, and preparing an original powder combination through a solid-phase sintering method; mixing according to the original powder combination to prepare a precursor powder combination; performing combined pressing on the precursor powder to obtain a combined precursor blank and a buffer layer; processing the REBCO original seed crystal, the combined precursor blank and the buffer layer based on a preset top seed crystal melt texture method to obtain an initial REBCO high-temperature superconducting block; and performing heat treatment according to the initial REBCO high-temperature superconducting bulk material to obtain a final REBCO high-temperature superconducting bulk material. Through layered preparation and formation of the combined precursor blank, redistribution of refined particles in the solid solution is realized, the bulk superconductivity is improved, the low porosity is maintained, and the overall performance of the material is enhanced.
本发明提供了一种基于分层式前驱胚体制备高性能REBCO高温超导块材的方法，涉及高温超导材料技术领域，包括：获取预设摩尔比例的原始药品，并采用固相烧结法制备得到原始粉末组合；根据原始粉末组合混合制备得到前驱粉体组合；使用前驱粉体组合压制得到组合前驱胚体和缓冲层；基于预设的顶部籽晶熔融织构法对REBCO原始籽晶、组合前驱胚体和缓冲层进行处理得到初始REBCO高温超导块材；根据初始REBCO高温超导块材进行热处理得到最终的REBCO高温超导块材。本发明通过分层制备并形成组合前驱胚体，实现了细化粒子在固熔体内部的再分布，在提升块材超导性能的同时保持较低的孔隙率，增强了材料的整体性能。
Method for preparing high-performance REBCO high-temperature bulk superconductor based on layered precursor blank
The invention provides a method for preparing a high-performance REBCO high-temperature superconducting bulk material based on a layered precursor blank, and relates to the technical field of high-temperature superconducting materials, and the method comprises the steps: obtaining an original medicine in a preset molar ratio, and preparing an original powder combination through a solid-phase sintering method; mixing according to the original powder combination to prepare a precursor powder combination; performing combined pressing on the precursor powder to obtain a combined precursor blank and a buffer layer; processing the REBCO original seed crystal, the combined precursor blank and the buffer layer based on a preset top seed crystal melt texture method to obtain an initial REBCO high-temperature superconducting block; and performing heat treatment according to the initial REBCO high-temperature superconducting bulk material to obtain a final REBCO high-temperature superconducting bulk material. Through layered preparation and formation of the combined precursor blank, redistribution of refined particles in the solid solution is realized, the bulk superconductivity is improved, the low porosity is maintained, and the overall performance of the material is enhanced.
本发明提供了一种基于分层式前驱胚体制备高性能REBCO高温超导块材的方法，涉及高温超导材料技术领域，包括：获取预设摩尔比例的原始药品，并采用固相烧结法制备得到原始粉末组合；根据原始粉末组合混合制备得到前驱粉体组合；使用前驱粉体组合压制得到组合前驱胚体和缓冲层；基于预设的顶部籽晶熔融织构法对REBCO原始籽晶、组合前驱胚体和缓冲层进行处理得到初始REBCO高温超导块材；根据初始REBCO高温超导块材进行热处理得到最终的REBCO高温超导块材。本发明通过分层制备并形成组合前驱胚体，实现了细化粒子在固熔体内部的再分布，在提升块材超导性能的同时保持较低的孔隙率，增强了材料的整体性能。
Method for preparing high-performance REBCO high-temperature bulk superconductor based on layered precursor blank
基于分层式前驱胚体制备高性能REBCO高温超导块材的方法
DENG ZIGANG (author) / ZHANG XIWEN (author) / LI TINGTING (author)
2024-11-01
Patent
Electronic Resource
Chinese
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