Manufacturing of Metal Nanostructures by Tensile Deformation of Liquid Metal Arrays

通过液态金属阵列拉伸变形制造金属纳米结构

基本信息

  • 批准号:
    1919445
  • 负责人:
  • 金额:
    $ 20.26万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2018
  • 资助国家:
    美国
  • 起止时间:
    2018-12-19 至 2022-09-30
  • 项目状态:
    已结题

项目摘要

Metal nanostructures are essential for energy conversion and storage, sensors, plasmonics, water purification, and biomedical applications. Despite growing demand in these technologies, the manufacturing methods for metal nanostructures have remained few and often complex. Polymer nanostructures can be massively fabricated by nanoimprinting, template infiltration, and electrospinning. A plethora of top-down (etching) and bottom-up (directed- or self-assembly) techniques have been developed for semiconductor nanostructures to meet the needs of microelectronics industry. In contrast, metal nanostructures still require multiple lithographic and thin film deposition steps which are slow and expensive. This award supports fundamental research in the rheology of liquid metals to advance a new nanomanufacturing technique involving tensile deformation and rupture of arrays of liquid metal. The research enables nanolithography-free fabrication of controllable metal nanostructures assembled on various substrates such as metals, glasses, polymers, and semiconductors. The project provides education and hands-on training in metal nanomanufacturing to undergraduate and graduate students and opportunities in engineering to minority students and students with disability. A variety of shapes such as droplets, thin films, beads-on-a-string, conical structures, and long fibers can be created by deformation of polymer liquids. This is enabled by tuning rheological and interfacial properties of polymer solutions. However, a similar approach is not applicable to liquid metals because of their low viscosity, high surface tension, and lack of viscoelasticity. These challenges of conventional metals are overcome by using amorphous metals or glass forming metal alloys which exhibit a metastable supercooled liquid state that mimics the rheology of thermoplastics. Effects of viscosity, surface tension, and strain-rate on flow behavior of metallic supercooled liquids are systematically studied. Such knowledge is used to manipulate the supercooled liquid state for high-throughput manufacturing of metal nanostructures by mechanical means. The research work involves extensional or tensile deformation of liquid metal arrays to create high-aspect-ratio and hollow metal nanostructures which are not feasible by existing embossing methods. The glassy or amorphous nanostructures are subsequently devitrified or crystallized for applications which require crystalline metal nanostructures. Besides leading to new applications, this nanomanufacturing project enables fundamental studies on size effects in metallic glasses through performance of thermal, electrical, and mechanical tests on nanoscale specimens.
金属纳米结构对于能量转换和存储、传感器、等离子体、水净化和生物医学应用至关重要。尽管对这些技术的需求不断增长,但金属纳米结构的制造方法仍然很少,而且往往很复杂。聚合物纳米结构可以通过纳米印迹、模板渗透和静电纺丝等方法大规模制备。为了满足微电子工业的需要,已经开发了大量的自顶向下(蚀刻)和自底向上(定向或自组装)的半导体纳米结构技术。相比之下,金属纳米结构仍然需要多个光刻和薄膜沉积步骤,这些步骤缓慢且昂贵。该奖项支持液态金属流变学的基础研究,以推进一种涉及液态金属阵列拉伸变形和破裂的新型纳米制造技术。该研究使得在金属、玻璃、聚合物和半导体等各种衬底上组装可控金属纳米结构的纳米光刻制造成为可能。该项目为本科生和研究生提供金属纳米制造方面的教育和实践培训,并为少数民族学生和残疾学生提供工程方面的机会。聚合物液体的变形可以产生各种形状,如液滴、薄膜、串珠、锥形结构和长纤维。这是通过调整聚合物溶液的流变学和界面特性来实现的。然而,类似的方法不适用于液态金属,因为它们的粘度低,表面张力高,缺乏粘弹性。传统金属的这些挑战可以通过使用非晶金属或玻璃成形金属合金来克服,这些金属合金表现出亚稳态过冷液态,模仿热塑性塑料的流变学。系统地研究了粘度、表面张力和应变速率对金属过冷液体流动行为的影响。这些知识被用于通过机械手段操纵过冷液体状态以实现高通量金属纳米结构的制造。研究工作涉及液态金属阵列的拉伸或拉伸变形,以创建高纵横比和空心金属纳米结构,这是现有压花方法无法实现的。玻璃状或非晶状纳米结构随后被反氮化或结晶化,用于需要结晶金属纳米结构的应用。除了带来新的应用之外,这个纳米制造项目通过对纳米尺度样品进行热、电和机械测试,使金属玻璃尺寸效应的基础研究成为可能。

项目成果

期刊论文数量(9)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Review of Thermoplastic Drawing with Bulk Metallic Glasses
  • DOI:
    10.3390/met12030518
  • 发表时间:
    2022-03
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    S. Jagdale;Akib Jabed;S. Theeda;C. Meduri;Zhonglue Hu;Molla Hasan;G. Kumar
  • 通讯作者:
    S. Jagdale;Akib Jabed;S. Theeda;C. Meduri;Zhonglue Hu;Molla Hasan;G. Kumar
Effect of time on the isothermal viscosity of metallic glass supercooled liquids
时间对金属玻璃过冷液体等温粘度的影响
  • DOI:
    10.1016/j.jallcom.2020.158067
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    6.2
  • 作者:
    Jabed, Akib;Meduri, Chandra Sekhar;Kumar, Golden
  • 通讯作者:
    Kumar, Golden
Biocompatibility and thermoplastic formability of Pt-based metallic glasses
铂基金属玻璃的生物相容性和热塑性成型性
  • DOI:
    10.1016/j.matlet.2021.129870
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    3
  • 作者:
    Jagdale, S.;Hu, Q.;Ecker, M.;Kumar, G.
  • 通讯作者:
    Kumar, G.
Selective-area fabrication of bulk metallic glass nanowires on silicon
硅上块体金属玻璃纳米线的选择性区域制造
  • DOI:
    10.1016/j.matlet.2022.132966
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    3
  • 作者:
    Theeda, Sumanth;Kumar, Golden
  • 通讯作者:
    Kumar, Golden
Ellipsometric analysis of isothermally devitrified metallic glasses
  • DOI:
    10.1016/j.omx.2021.100095
  • 发表时间:
    2021-12
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Ceren Uzun;C. Meduri;S. Jagdale;G. Kumar;A. Bernussi
  • 通讯作者:
    Ceren Uzun;C. Meduri;S. Jagdale;G. Kumar;A. Bernussi
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Golden Kumar其他文献

Viscosity and crystallization of equiatomic Pdsub20/subPtsub20/subCusub20/subNisub20/subPsub20/sub metallic glass
等原子比 Pd20Pt20Cu20Ni20P20 金属玻璃的粘度和结晶
  • DOI:
    10.1016/j.jallcom.2025.178480
  • 发表时间:
    2025-01-15
  • 期刊:
  • 影响因子:
    6.300
  • 作者:
    Kalyan Nandigama;Golden Kumar
  • 通讯作者:
    Golden Kumar

Golden Kumar的其他文献

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{{ truncateString('Golden Kumar', 18)}}的其他基金

Creep-Based Nanomanufacturing of Crystalline Metals and Alloys
基于蠕变的晶体金属和合金纳米制造
  • 批准号:
    2212195
  • 财政年份:
    2023
  • 资助金额:
    $ 20.26万
  • 项目类别:
    Standard Grant
CAREER: Understanding of Intrinsic Size-Effects in Deformation of Metallic Glasses
职业:了解金属玻璃变形的内在尺寸效应
  • 批准号:
    1921435
  • 财政年份:
    2018
  • 资助金额:
    $ 20.26万
  • 项目类别:
    Standard Grant
Manufacturing of Metal Nanostructures by Tensile Deformation of Liquid Metal Arrays
通过液态金属阵列拉伸变形制造金属纳米结构
  • 批准号:
    1663568
  • 财政年份:
    2017
  • 资助金额:
    $ 20.26万
  • 项目类别:
    Standard Grant
CAREER: Understanding of Intrinsic Size-Effects in Deformation of Metallic Glasses
职业:了解金属玻璃变形的内在尺寸效应
  • 批准号:
    1653938
  • 财政年份:
    2017
  • 资助金额:
    $ 20.26万
  • 项目类别:
    Standard Grant
Functionalization of Metals by Hierarchical Surface Patterning
通过分层表面图案化实现金属功能化
  • 批准号:
    1266277
  • 财政年份:
    2013
  • 资助金额:
    $ 20.26万
  • 项目类别:
    Standard Grant

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