In-Situ Processing of Superconducting MgB2-Metal Composites
超导 MgB2-金属复合材料的原位加工
基本信息
- 批准号:0319051
- 负责人:
- 金额:$ 40万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2003
- 资助国家:美国
- 起止时间:2003-09-01 至 2008-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The proposal is on the processing of magnesium boride (MgB2) using reaction synthesis involving pressure infiltration of B fibers with molten magnesium to form a continuous MgB2 phase in an Mg matrix. A major goal is to achieve superconducting applications at temperatures in excess of 25K. The influence of processing temperature, volume fraction of boron, size and shape on the resulting microstructures will be studied using various characterization techniques including metallography, microprobe, secondary ion mass spectroscopy, synchrotron x-ray tomography and transmission electron microscopy. The mechanical and superconducting properties of reacted MgB2 fibers and MgB2-metal composites will be assessed and correlated with the microstructures. Experimental studies will be followed by modeling efforts first using 1-dimensional model to predict fracture strength and elastic modulus of boron fibers followed by classical and three-phase self-consistent methods for composites. The ultimate goal of the project is to generate a science-base understanding of the synthesis of MgB2 from solid B and liquid Mg for the fabrication of continuous lengths of superconducting metal-MgB2 composite wires. The research emphasizes the development of a process for creating continuous, low-cost metal-MgB2 composite superconducting wires with a critical temperature of 39 K, through a science-based, predictive understanding of the materials science issues involved with synthesis, structure and properties of these composites.Operation of the composite superconducting wires at 25-30 K without helium cryo-cooling will result in a significant drop in costs as compared to current Nb3Sn-type wires cooled by liquid helium, which is an expensive, non- renewable resource. Possible applications include superconducting magnets for energy storage devices, levitation systems (for trains), motors, wires for power transmission and superconducting quantum interference device (SQUID) systems. The research provides opportunities for undergraduate and graduate students as well as high school teachers through outreach programs for laboratory experience involving materials processing and characterization techniques. Plans include creation of a website on MgB2 synthesis and collaboration with Argonne National Laboratory through the use of Advanced Photon Source.
该提案是关于使用反应合成方法处理硼化镁(MgB2),涉及B纤维与熔融镁的压力渗透,以在Mg基体中形成连续的MgB2相。一个主要目标是在超过25K的温度下实现超导应用。加工温度、硼的体积分数、尺寸和形状对所得微观结构的影响将使用各种表征技术进行研究,包括金相、微探针、二次离子质谱、同步加速器x射线断层扫描和透射电子显微镜。反应后的MgB2纤维和MgB2-金属复合材料的力学和超导性能将被评估,并与微观结构相关联。实验研究之后将进行建模工作,首先使用一维模型预测硼纤维的断裂强度和弹性模量,然后使用经典和三相自洽方法预测复合材料。该项目的最终目标是为制造连续长度的超导金属-MgB2复合线,从固体B和液体Mg合成MgB2产生科学基础的理解。该研究强调,通过对这些复合材料的合成、结构和性能所涉及的材料科学问题的科学预测理解,开发一种制造临界温度为39 K的连续、低成本金属- mgb2复合超导线的工艺。与目前使用液氦冷却的nb3sn型超导线相比,在25-30 K下不使用氦冷冷却的复合超导线将显著降低成本,液氦是一种昂贵的不可再生资源。可能的应用包括用于储能装置的超导磁体、悬浮系统(用于火车)、电机、电力传输电线和超导量子干涉装置(SQUID)系统。该研究为本科生、研究生以及高中教师提供了机会,通过拓展项目获得涉及材料加工和表征技术的实验室经验。计划包括创建一个关于MgB2合成的网站,并通过使用先进光子源与阿贡国家实验室合作。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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David Dunand其他文献
Effects of bridging fibers on the evolution of lamellar architecture during Hsub2/sub/Hsub2/subO redox cycling of Fe-foams
桥连纤维对泡沫铁在氢气/水氧化还原循环过程中层状结构演变的影响
- DOI:
10.1016/j.actamat.2022.118543 - 发表时间:
2023-01-15 - 期刊:
- 影响因子:9.300
- 作者:
Samuel Pennell;David Dunand - 通讯作者:
David Dunand
David Dunand的其他文献
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{{ truncateString('David Dunand', 18)}}的其他基金
Ferroalloys and Stainless Steels with Low Carbon Footprint via Hydrogen Reduction of Oxide Blends
通过氧化物混合物的氢还原实现低碳足迹的铁合金和不锈钢
- 批准号:
2317002 - 财政年份:2023
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利用氧化物和氢化物粉末基于墨水增材制造高熵合金
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2004769 - 财政年份:2020
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$ 40万 - 项目类别:
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Freeze-Cast Manufacturing of Stable Iron-Alloy Foams for Energy Conversion and Storage
用于能量转换和存储的稳定铁合金泡沫的冷冻铸造制造
- 批准号:
2015641 - 财政年份:2020
- 资助金额:
$ 40万 - 项目类别:
Standard Grant
Size Effect on the Evolution of Kirkendall Pores in Ti-Coated Ni Wires
镀钛镍丝柯肯德尔孔演化的尺寸效应
- 批准号:
1611308 - 财政年份:2016
- 资助金额:
$ 40万 - 项目类别:
Standard Grant
Processing of Advanced Foam Scaffolds for Iron-Air Battery Applications
用于铁-空气电池应用的先进泡沫支架的加工
- 批准号:
1562941 - 财政年份:2016
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$ 40万 - 项目类别:
Standard Grant
Collaborative Research: Size Effects on Magneto-Mechanics of Ni-Mn-Ga Fibers
合作研究:Ni-Mn-Ga 纤维磁力学的尺寸效应
- 批准号:
1207282 - 财政年份:2012
- 资助金额:
$ 40万 - 项目类别:
Continuing Grant
Collaborative Research: Enabling Magnetoplasticity in Polycrystalline Ni-Mn-Ga by Reducing Internal Constraints Through Porosity
合作研究:通过孔隙率减少内部约束,实现多晶 Ni-Mn-Ga 的磁塑性
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0805064 - 财政年份:2008
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- 批准号:
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0233805 - 财政年份:2002
- 资助金额:
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The Role of Surface Reactions and Hydrogen Surface Diffusivity on the Environmental Embrittlement of (Ni,Fe)Ti Alloys
表面反应和氢表面扩散率对 (Ni,Fe)Ti 合金环境脆化的作用
- 批准号:
0095381 - 财政年份:2001
- 资助金额:
$ 40万 - 项目类别:
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