烧结温度对机械合金Ru和y掺杂Nb3Sn超导性能的影响

IF 5.5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Characterization Pub Date : 2025-09-05 DOI:10.1016/j.matchar.2025.115549

Nitin Srivastava , Guillaume A.B. Matthews , Susannah Speller , Chris Grovenor , Sangeeta Santra

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引用次数: 0

摘要

本工作试图研究烧结温度对Ru和y掺杂Nb3Sn超导体微观结构形成的影响及其对功能性能的影响。此外，我们还研究了烧结时间对晶粒尺寸的影响，以了解其在体积致密化中的作用，并为确定最佳烧结时间奠定了基础。烧结温度为1200°C，烧结时间为2 min，可以获得较高的体积密度，这是本研究中掺杂Nb3Sn样品获得更好功能性能的理想微观结构演变的最佳条件。该研究还表明，由于形成了额外的磁钉中心，在较高的应用场强范围内，钇掺杂物比钌掺杂物表现出更好的功能特性。这项工作还强调了晶粒尺寸变化与烧结时间和温度之间的相互作用，以及由此产生的功能特性与合适的潜在原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of sintering temperature on the superconducting properties of mechanically alloyed Ru– and Y–doped Nb3Sn

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Effect of sintering temperature on the superconducting properties of mechanically alloyed Ru– and Y–doped Nb3Sn

The present work attempts to study the effect of sintering temperature on shaping the microstructure and its effects on the functional properties of Ru and Y-doped Nb₃Sn superconducting bulk. Further, we have studied the effect of sintering time on grain size to understand its role in bulk densification and the basis for determining an optimized sintering time. The sintering temperature of 1200 °C resulted in higher bulk densification with a sintering time of 2 min as an optimum for desirable microstructural evolution for better functional properties for the doped Nb₃Sn samples studied in this work. This study also indicates that the dopant yttrium has shown better functional properties than ruthenium-doped ones at higher applied field ranges due to the formation of additional flux pinning centers. This work also highlights the interplay between the grain size variation with sintering time and temperature and the resulting functional properties with suitable underlying reasons.

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来源期刊

Materials Characterization 工程技术-材料科学：表征与测试

CiteScore

7.60

自引率

8.50%

发文量

746

审稿时长

36 days

期刊介绍： Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials. The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal. The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include: Metals & Alloys Ceramics Nanomaterials Biomedical materials Optical materials Composites Natural Materials.