CAREER: Structure-property Relationships Arising From Interfacial Coupling in Bi-phasic Ceramic Nanocomposites

职业:双相陶瓷纳米复合材料中界面耦合产生的结构-性能关系

基本信息

  • 批准号:
    1150665
  • 负责人:
  • 金额:
    $ 48.82万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2012
  • 资助国家:
    美国
  • 起止时间:
    2012-07-01 至 2019-06-30
  • 项目状态:
    已结题

项目摘要

NON-TECHNICAL DESCRIPTION: This project focuses on a class of composites referred to as multiferroics, which combine magnetic and electrical insulators, and can enable new electronic applications including multi-phase computer memory, tunable microelectronics, and electromagnetic interference filters. Composite materials are made up of at least two distinct components with differing composition and physical properties. The constituent materials are chosen with properties that do not occur in a single component material, but are desirable in a final product. However, in order for composite materials to have enhanced properties compared with their constituent phases, the interface between the two constituents must be understood. This project is developing new methods to fabricate ceramic composite materials with controlled interfaces. These materials will allow for an entirely new way of correlating the macroscopic composite properties with interfacial properties. The specific education objectives are to employ a team-based approach to 1) introduce and expose graduate and undergraduate students to novel materials research that addresses application based needs, 2) leverage existing outreach experience to encourage and improve high school graduation rates in at-risk youth, and 3) to educate graduate and undergraduate students in a multi-institutional and multi-disciplinary environment through collaborations.TECHNICAL DETAILS: Many material properties are mutually exclusive, and are therefore unlikely to exist in single-phase materials. This property dichotomy includes strength and toughness, high electric permittivity and high magnetic permeability, and soft and hard magnetic properties. However, increasing performance in many real-world applications relies on combining these properties. Currently, most complex oxide composites, or heterostructures, are prepared in thin-film form on substrates. These substrates induce changes in the local symmetry, which alter the properties of the films. The primary goal of this project is to synthesize free-standing composite bi-phasic nanoparticles and fibers to study the effects of interfacial properties, including area and nature (e.g., epitaxy) on composite properties. By fabricating composite materials without the use of substrates the structure-property relationships that arise from coupling in these systems is being established.
非技术描述:该项目的重点是一类被称为多铁性的复合材料,它结合了联合收割机磁绝缘体和电绝缘体,可以实现新的电子应用,包括多相计算机存储器,可调微电子和电磁干扰滤波器。 复合材料由至少两种具有不同组成和物理特性的不同组分组成。 组成材料被选择为具有在单一组分材料中不会出现但在最终产品中期望的特性。 然而,为了使复合材料与其组成相相比具有增强的性能,必须理解两种成分之间的界面。 该项目正在开发制造具有可控界面的陶瓷复合材料的新方法。 这些材料将允许一种全新的方式将宏观复合材料性能与界面性能相关联。 具体的教育目标是采用以团队为基础的方法,1)介绍和接触研究生和本科生的新材料研究,解决基于应用的需求,2)利用现有的推广经验,鼓励和提高高中毕业率在高危青年,3)通过合作,在多机构和多学科的环境中教育研究生和本科生。技术专长:许多材料的性质是相互排斥的,因此不太可能存在于单相材料中。 这种性质二分法包括强度和韧性、高介电常数和高磁导率以及软磁性和硬磁性。 然而,在许多实际应用中,提高性能依赖于组合这些属性。 目前,大多数复杂的氧化物复合材料或异质结构都是以薄膜的形式在基底上制备的。 这些衬底引起局部对称性的变化,从而改变薄膜的性质。 该项目的主要目标是合成独立的复合双相纳米颗粒和纤维,以研究界面性质的影响,包括面积和性质(例如,外延)对复合材料性能的影响。 通过在不使用基底的情况下制造复合材料,正在建立这些系统中由耦合引起的结构-性能关系。

项目成果

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Jennifer Andrew其他文献

Jennifer Andrew的其他文献

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{{ truncateString('Jennifer Andrew', 18)}}的其他基金

The Emergence of Ferroic Phenomena and Size-Effects in Fluorite-Based Nanoparticles
萤石基纳米粒子中铁现象的出现和尺寸效应
  • 批准号:
    1832733
  • 财政年份:
    2018
  • 资助金额:
    $ 48.82万
  • 项目类别:
    Standard Grant
SNM: Large-area Manufacturing of Integrated Devices with Nanocomposite Magnetic Cores
SNM:纳米复合磁芯集成器件的大面积制造
  • 批准号:
    1727930
  • 财政年份:
    2017
  • 资助金额:
    $ 48.82万
  • 项目类别:
    Standard Grant
Collaborative Research: Processing and Assembly of Devices with Tailored Magnetic Properties
合作研究:具有定制磁性能的器件的加工和组装
  • 批准号:
    1436623
  • 财政年份:
    2014
  • 资助金额:
    $ 48.82万
  • 项目类别:
    Standard Grant
Development of Multiferroic Nanocomposites for 3D Electroactive Cell Scaffolds
用于 3D 电活性电池支架的多铁纳米复合材料的开发
  • 批准号:
    1410564
  • 财政年份:
    2014
  • 资助金额:
    $ 48.82万
  • 项目类别:
    Continuing Grant

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    1554315
  • 财政年份:
    2016
  • 资助金额:
    $ 48.82万
  • 项目类别:
    Continuing Grant
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