Engineering Fellowships for Growth: Polar Materials for Additive Manufacturing

增长工程奖学金：用于增材制造的极性材料

• 批准号: EP/M002462/1
• 负责人: Andrew Bell
• 金额: $ 131.35万
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FM002462%2F1
• 关键词: Engineering; Fellowships; Growth; Polar; Materials

The concept of Additive Manufacturing (AM) is seen as an important contributor to the re-balancing of UK manufacturing industry. AM enables the manufacture of complex structures with novel combinations of materials, to create innovative products for both the consumer and industrial markets. It can be applied equally to mass-production or bespoke products. The intrinsic economy of raw material usage keeps costs low and the rapid turn-round of design iterations minimizes the time to market for new products. Due to progress in organic conductors and semiconductors, the concept of plastic electronics is a major contributor to multifunctional products using AM. These advances are evident in many consumer products including smartphones and tablet PCs. The proposed Fellowship is intended to address a capability gap in AM and flexible electronics. The missing capability is in the AM-compatible integration of highly polar solids, as used in capacitors, piezoelectric devices and infra-red sensors. These functions are normally satisfied by ferroelectric oxides (e.g. barium titanate and PZT) in the form of ceramics which are sintered at high temperature, and can currently only be deployed in the form of discrete components. This limits both the flexibility and potential cost-savings offered by AM. Printable organic materials, as used in photonic functions, do not provide an acceptable solution to the demand for such highly polar dielectrics as the relevant figures of merit are one or two orders of magnitude lower than oxides. Capacitors and piezo-transducers are ubiquitous in conventional electronics and the ability to design them into printable products is a "must have" for future AM systems, allowing full integration of pressure sensors, energy harvesting and energy storage capacitors, for example.The project will employ a bottom-up, holistic approach with three innovations: (i) the preparation of highly crystalline, monodisperse, ferroelectric nanocrystals, (ii) the implementation of multi-scale modelling for the optimal design of printable, high-polarisability devices and (iii) utilization of ferroelectric polarization to promote self-assembly of nanocrystals into functionally beneficial crystallographic orientations during printing operations. These innovations will be employed to design new printable functional components that can be integrated into electromechanical products produced by AM techniques. A successful outcome will result in reduced costs and lead times for integrating new functional materials into AM products. The Fellowship will also be used as a platform to (i) initiate programmes on new applications of ferroelectric nanocrystals and (ii) facilitate the re-focusing of functional oxide research on goals coherent with medium to long-term UK industry needs.

添加剂制造（AM）的概念被视为英国制造业重新平衡的重要贡献。 AM可以通过新颖的材料组合来制造复杂的结构，从而为消费者和工业市场创建创新产品。它可以平等地应用于群众生产或定制产品。原材料使用的内在经济量保持较低的成本，而设计迭代的快速转发可以最大程度地减少新产品的营销时间。由于有机导体和半导体的进展，塑料电子的概念是使用AM的多功能产品的主要贡献者。这些进步在包括智能手机和平板电脑在内的许多消费产品中很明显。拟议的奖学金旨在解决AM和灵活电子设备的能力差距。缺失的能力是在电容器，压电设备和红外传感器中使用的高度极性固体的AM兼容整合。这些功能通常通过铁电氧化物（例如钛酸钡和PZT）的形式满足，这些陶瓷在高温下烧结，目前只能以离散成分的形式部署。这限制了AM提供的灵活性和潜在的成本节省。如光子功能中使用的可打印有机材料不能为对高极性介电的需求提供可接受的解决方案，例如优点相关数字比氧化物低一个或两个数量级。电容器和压电转换器在常规电子设备上无处不在，并且将它们设计成可打印产品的能力对于将来的AM系统来说是一种“必须具有”，可以使压力传感器，能量收获和能量存储能力完全集成。纳米晶体，（ii）实施多尺度建模，用于最佳设计，可打印，高可极性设备以及（iii）在打印操作过程中，将铁电偏振促进纳米晶体的自组装中，以促进纳米晶体的自组装。这些创新将用于设计新的可打印功能组件，这些功能组件可以集成到AM技术生产的机电产品中。成功的结果将导致将新功能材料整合到AM产品中的成本和交货时间减少。该奖学金还将用作（i）针对铁电纳米晶体的新应用启动程序的平台，（ii）促进功能性氧化物研究对具有中度至长期英国行业需求的目标相干的目标。

项目成果

Requirements for the transfer of lead-free piezoceramics into application

• DOI: 10.1016/j.jmat.2018.02.001
• 发表时间: 2018-03-01
• 期刊: JOURNAL OF MATERIOMICS
• 影响因子: 9.4
• 作者: Koruza, Jurij;Bell, Andrew J.;Roedel, Jurgen
• 通讯作者: Roedel, Jurgen

Expanding the application space for piezoelectric materials

• DOI: 10.1063/5.0035416
• 发表时间: 2021-01-01
• 期刊: APL MATERIALS
• 影响因子: 6.1
• 作者: Bell, Andrew J.;Comyn, Tim P.;Stevenson, Timothy J.
• 通讯作者: Stevenson, Timothy J.

Ferroelectric Behavior in Exfoliated 2D Aurivillius Oxide Flakes of Sub-Unit Cell Thickness

• DOI: 10.1002/aelm.201901264
• 发表时间: 2020-01-30
• 期刊: ADVANCED ELECTRONIC MATERIALS
• 影响因子: 6.2
• 作者: Keeney, Lynette;Smith, Ronan J.;Whatmore, Roger W.
• 通讯作者: Whatmore, Roger W.

Electric field dependent local structure of ( K x N a 1 - x ) 0.5 B i 0.5 Ti O 3

( K x N a 1 - x ) 0.5 B i 0.5 Ti O 3 的电场相关局部结构

• DOI: 10.1103/physrevb.96.014118
• 发表时间: 2017
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Goetzee-Barral A

A classical mechanics model for the interpretation of piezoelectric property data

• DOI: 10.1063/1.4937135
• 发表时间: 2015-12
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: A. Bell