MRI: Acquisition of High Performance Nano-Mechanical Tester for Micro/Nanomechanical Characterization of Materials

MRI:购置高性能纳米机械测试仪,用于材料微/纳米机械表征

基本信息

项目摘要

The goal of this Major Research Instrumentation (MRI) project is to strengthen the research capability in micro/nanomechanical materials characterization at the University of Nevada, Reno (UNR). To do so, a critical mass of researchers with interdisciplinary research interests at UNR proposes to acquire a new and critical instrument, the Hysitron TI-950 Triboindentor nano-mechanical testing system. Northern Nevada including UNR does not have a nano-mechanical tester, thus the lack of such an instrument (or quick access to a nearby instrument) imposes significant challenges to researchers at UNR and local industry partners in advancing materials research and development. Acquiring a state-of-the-art nano-mechanical testing system will immediately support a number of research projects at UNR and initiate transformative research and industry collaborations. The instrument will also support undergraduate and graduate courses and train science and engineering students in state-of-the-art materials characterization techniques. The nano-mechanical tester performs indentation tests by driving a nanometer-sized diamond indenter into the specimen surface and dynamically collecting the applied force and displacement data. The measured load and the indentation depth can be used to derive mechanical material properties such as hardness, elastic modulus, and storage and loss moduli for materials, thin films, coatings, and substrates. By making these measurements as a function of time, viscoelastic properties such as creep and relaxation can be determined at the micro/nano level. Together with testing fixtures available at UNR, the system can be also used for in situ observations of the microstructure evolution at different length scales. In addition to supporting the projects by the core investigator team, eleven researchers from three institutions will collaborate with the core investigator team to use the new instrument for research.The nano-mechanical tester will significantly enhance the research capability at UNR in the emerging areas of bio-materials, nano-materials, active materials, and other structural and functional materials. Particularly, the instrument will improve UNR?s research support infrastructure by giving UNR a unique set of resources with which to pursue funding in the micro/nanomechanical aspects of material behavior. The outcome of the research conducted with the requested instrument will add significantly to the knowledge base in the areas of nano-materials, bio-sensors, testing of materials and structures, nanomanufacturing, processing of nanocomposites, and micro-characterization of material properties. The instrument will be shared by many laboratory groups at UNR and thus will encourage collaboration and spark synergistic research. The instrument will be used to train and better prepare the future work force in advanced materials research. Also, the instrument will be used by UNR NSF GK-12 graduate fellows exploring energy research for characterizing novel materials including thin-film solar cells and membranes for energy-related applications. Graduate and undergraduate students who interact with the instrument will gain valuable hands-on skills and state-of-the-art training in nanoindentation and materials characterization. The participating research groups have a tradition of involving women, minorities and undergraduates in the research activities and this tradition will be continued in the micro/nanomechanical regime with the newly acquired instrument. Detailed digital data will be made available on a designated website to disseminate the research results and findings. Additionally, a collection of course-related projects will be made available to a large pool of instructors, practicing engineers, undergraduate, and graduate students.
该主要研究仪器(MRI)项目的目标是加强内华达州大学里诺(UNR)在微/纳米机械材料表征方面的研究能力。 为此,UNR跨学科研究兴趣的研究人员提出购买一种新的关键仪器,Hysitron TI-950 Triboindentor纳米机械测试系统。 包括UNR在内的北方内华达州没有纳米机械测试仪,因此缺乏这种仪器(或快速访问附近的仪器)给UNR的研究人员和当地工业合作伙伴在推进材料研究和开发方面带来了重大挑战。 获得最先进的纳米机械测试系统将立即支持UNR的许多研究项目,并启动变革性的研究和行业合作。 该仪器还将支持本科生和研究生课程,并对理工科学生进行最先进的材料表征技术培训。 纳米力学测试仪通过将纳米尺寸的金刚石压头驱动到样品表面并动态收集施加的力和位移数据来执行压痕测试。 所测量的载荷和压痕深度可用于导出材料、薄膜、涂层和基材的机械材料特性,例如硬度、弹性模量、储能模量和损耗模量。通过将这些测量作为时间的函数,可以在微米/纳米水平上确定粘弹性能,例如蠕变和松弛。 与UNR提供的测试夹具一起,该系统也可用于在不同长度尺度上原位观察微观结构的演变。 除了支持核心研究员团队的项目外,来自三个机构的十一名研究人员将与核心研究员团队合作,使用新仪器进行研究。纳米力学测试仪将大大提高UNR在生物材料,纳米材料,活性材料和其他结构和功能材料等新兴领域的研究能力。 特别是,该工具将改善UNR?UNR的研究支持基础设施,为UNR提供了一套独特的资源,用于在材料行为的微观/纳米力学方面寻求资金。 用所要求的仪器进行的研究成果将大大增加纳米材料、生物传感器、材料和结构测试、纳米制造、纳米复合材料加工和材料特性微观表征等领域的知识基础。 该仪器将由UNR的许多实验室小组共享,从而鼓励合作并激发协同研究。 该仪器将用于培训和更好地准备先进材料研究的未来工作人员。 此外,UNR NSF GK-12研究生研究员将使用该仪器探索能源研究,以表征新材料,包括薄膜太阳能电池和用于能源相关应用的膜。 与仪器互动的研究生和本科生将获得宝贵的动手技能和纳米压痕和材料表征方面的最先进培训。 参与的研究小组有一个传统,让妇女、少数民族和大学生参与研究活动,这一传统将在新获得的仪器的微/纳米机械领域继续下去。 详细的数字数据将在一个指定的网站上提供,以传播研究结果和调查结果。 此外,一系列与课程相关的项目将提供给大量的讲师,执业工程师,本科生和研究生。

项目成果

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Yanyao Jiang其他文献

Effect of Loading History on Stress Corrosion Cracking of 7075-T651 Aluminum Alloy in Saline Aqueous Environment
加载历史对盐水环境中7075-T651铝合金应力腐蚀开裂的影响
  • DOI:
  • 发表时间:
    2011
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Jixi Zhang;S. Kalnaus;M. Behrooz;Yanyao Jiang
  • 通讯作者:
    Yanyao Jiang
Modeling of fatigue crack growth in a pressure vessel steel Q345R
压力容器钢 Q345R 疲劳裂纹扩展的建模
  • DOI:
    10.1016/j.engfracmech.2015.01.011
  • 发表时间:
    2015-02
  • 期刊:
  • 影响因子:
    5.4
  • 作者:
    Zhenyu Ding;Zengliang Gao;Xiaogui Wang;Yanyao Jiang
  • 通讯作者:
    Yanyao Jiang
Stress-Corrosion Cracking of AISI 4340 Steel in Aqueous Environments
Development of a Novel Approach for Fatigue Life Prediction of Structural Materials
  • DOI:
    10.21236/ada494407
  • 发表时间:
    2008-12
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Yanyao Jiang
  • 通讯作者:
    Yanyao Jiang
Aging effects on cyclic deformation and fatigue of extruded Mg–Gd–Y–Zr alloy
时效对挤压Mg-Gd-Y-Zr合金循环变形和疲劳的影响

Yanyao Jiang的其他文献

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{{ truncateString('Yanyao Jiang', 18)}}的其他基金

Collaborative Research: Nanodiamond Particle Fabrication by Confined Laser Shock Detonation for Drug Delivery and Other Applications
合作研究:通过受限激光冲击爆炸制造纳米金刚石颗粒用于药物输送和其他应用
  • 批准号:
    1825739
  • 财政年份:
    2018
  • 资助金额:
    $ 24.87万
  • 项目类别:
    Standard Grant
Understanding the Unique Fatigue Behavior of Magnesium Alloys
了解镁合金独特的疲劳行为
  • 批准号:
    1762312
  • 财政年份:
    2018
  • 资助金额:
    $ 24.87万
  • 项目类别:
    Standard Grant
Experimental Study of Cyclic Plastic Deformation Mechanisms in Hexagonal Close-Packed (HCP) Magnesium
六方密排(HCP)镁循环塑性变形机制的实验研究
  • 批准号:
    1462885
  • 财政年份:
    2015
  • 资助金额:
    $ 24.87万
  • 项目类别:
    Standard Grant
Workshop/Collaborative Research: 2012 NSF CAREER Proposal Writing Workshop; University of Nevada, Reno; March 26 and 27, 2012
研讨会/合作研究:2012年NSF职业提案写作研讨会;
  • 批准号:
    1138802
  • 财政年份:
    2011
  • 资助金额:
    $ 24.87万
  • 项目类别:
    Standard Grant
CAREER: Micromechanics Mechanisms and Cyclic Mechanical Behavior
职业:微观力学机制和循环机械行为
  • 批准号:
    9984857
  • 财政年份:
    2000
  • 资助金额:
    $ 24.87万
  • 项目类别:
    Standard Grant

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