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Lithium aluminosilicate (LAS) glass-ceramics: a review of recent progress 铝硅酸锂(LAS)微晶玻璃研究进展
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-11-22 DOI: 10.1080/09506608.2021.1994108
C. Venkateswaran, H. Sreemoolanadhan, R. Vaish
ABSTRACT The lithium aluminosilicate system (LAS) is being explored for almost seven decades due to its anomalous and attractive properties (especially low/negative thermal expansion and fast ion conduction) and its commercial significance in consumer as well as strategic sectors. This review introduces current commercial applications of LAS systems, necessary background science, structural features of different LAS crystal systems, including their polymorphs and solid-solutions, and the origin of unusual properties. Significant emphasis is provided on processing transparent, nanocrystalline, low thermal expansion glass-ceramic (LEGC), the role of chemical constituents and additives, the effect of heat-treatment, and microstructural evolution while processing LEGC. Detailed discussions are provided on the following areas: LAS matrix composites, chemical strengthening of glass and glass-ceramic, low temperature co-fired ceramics (LTCC) and associated joining technologies (hydrolysis catalysis bonding, anodic bonding, brazing, etc.) that would further extend the application portfolio of LAS system.
摘要铝硅酸锂系统(LAS)由于其异常和有吸引力的特性(特别是低/负热膨胀和快速离子传导)及其在消费和战略领域的商业意义,已经被探索了近70年。这篇综述介绍了LAS系统目前的商业应用,必要的背景科学,不同LAS晶体系统的结构特征,包括它们的多晶型和固溶体,以及不寻常性质的起源。重点介绍了加工透明、纳米晶体、低热膨胀微晶玻璃(LEGC)、化学成分和添加剂的作用、热处理的影响以及加工LEGC时的微观结构演变。详细讨论了以下领域:LAS基复合材料、玻璃和玻璃陶瓷的化学强化、低温共烧陶瓷(LTCC)和相关的连接技术(水解催化连接、阳极连接、钎焊等),这些技术将进一步扩展LAS系统的应用组合。
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引用次数: 17
Piezoelectric materials and systems for tissue engineering and implantable energy harvesting devices for biomedical applications 用于组织工程的压电材料和系统以及用于生物医学应用的植入式能量收集装置
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-11-20 DOI: 10.1080/09506608.2021.1988194
Vlad Jarkov, S. Allan, C. Bowen, H. Khanbareh
ABSTRACT Recently, the development of smart materials and the study of their properties has provided an innovative approach to the field of tissue engineering. Piezoelectrics, which are able to generate electric charge in response to mechanical stress or strain have been utilised in the stimulation of electrophysiologically responsive cells , including those found in bone, muscle, and the central and peripheral nervous systems. This area of study has experienced tremendous growth in the past decade in terms of both the array of piezoelectric materials and analytical methods by which they are evaluated in relation to specific tissue types. This review provides a critical and comprehensive overview of the most recent advances in this emerging field. Furthermore, it will extend the scope to examine the most recent developments in piezoelectric biomedical devices that extract energy from physiological processes to either power biomedical implants or act as biomedical sensors .
近年来,智能材料的发展及其性能的研究为组织工程领域提供了一条创新的途径。压电材料能够对机械应力或应变产生电荷,已被用于刺激电生理反应细胞,包括骨骼、肌肉、中枢和周围神经系统中的细胞。这一研究领域在过去十年中经历了巨大的增长,无论是压电材料阵列还是分析方法,它们都是根据特定组织类型进行评估的。这篇综述对这一新兴领域的最新进展进行了批判性和全面的概述。此外,它将扩展范围,以检查压电生物医学设备的最新发展,从生理过程中提取能量,为生物医学植入物提供动力或作为生物医学传感器。
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引用次数: 16
Mimicking nature to control bio-material surface wetting and adhesion 模拟自然,控制生物材料表面润湿和粘附
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-10-30 DOI: 10.1080/09506608.2021.1995112
Ming Li, Chang Li, B. Blackman, Saiz Eduardo
ABSTRACT Nature has developed unique strategies to refine and optimise structural performance. Using surfaces designed at multiple length scales, from micro to nano levels, combined with complex chemistries, different natural organisms can exhibit similar wetting but different adhesion to liquids under specific environments. These biological surfaces have inspired researchers to develop new approaches to control surface wetting and liquid behaviour via surface adhesion. Here we review natural strategies to control the interaction of liquids with solid surfaces and the efforts to implement these strategies in synthetic materials designed to work in either atmospheric or underwater environment. Particular attention is paid to droplet behaviour on the special-adhesion surfaces in nature and artificial smart surfaces. We highlight recent progress, identify the common threads, and discuss the fundamental differences in a way that can help formulate rational approaches towards surface engineering, and identify current challenges as well as future directions for the field.
Nature开发了独特的策略来完善和优化结构性能。使用从微观到纳米的多种长度尺度的表面,结合复杂的化学物质,不同的自然生物可以在特定环境下表现出相似的润湿性,但对液体的粘附性不同。这些生物表面激发了研究人员开发新的方法,通过表面粘附来控制表面润湿和液体行为。在这里,我们回顾了控制液体与固体表面相互作用的自然策略,以及在设计用于大气或水下环境的合成材料中实施这些策略的努力。特别关注液滴在自然和人工智能表面的特殊附着表面上的行为。我们强调了最近的进展,确定了共同点,并讨论了基本的差异,以帮助制定合理的表面工程方法,并确定当前的挑战以及该领域的未来方向。
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引用次数: 41
Laser additive manufacturing of steels 钢的激光增材制造
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-10-19 DOI: 10.1080/09506608.2021.1983351
Yu Yin, Qiyang Tan, M. Bermingham, Ning Mo, Jingqi Zhang, Mingxing Zhang
ABSTRACT Despite strong interest from many industrial sectors driving demand and advancements in laser additive manufacturing (LAM) of steels, some issues remain as barriers limiting the current industrial applications, such as defects, residual stress, scattered, inadequate or/and anisotropic properties. To overcome these problems, several effective approaches have been developed to control and/or enhance the properties of LAM produced steel components. To help researchers and engineers attain up-to-date information and knowledge in this rapidly growing area, the present work provides an overview of current research in LAM of steels, in particular austenitic steels, ferritic steels, duplex steels and martensitic steels, with a focus on understanding the interrelation between process, microstructure and mechanical properties. This review also includes substantive discussions on the effects of processing parameters, their interactions and post-LAM treatments on the metallurgy, microstructure and properties. In addition, the advances, ongoing challenges and outlooks in LAM of steels are highlighted.
摘要尽管许多工业部门对钢材激光增材制造(LAM)的需求和进步产生了浓厚的兴趣,但一些问题仍然是限制当前工业应用的障碍,如缺陷、残余应力、分散、不充分或/和各向异性。为了克服这些问题,已经开发了几种有效的方法来控制和/或提高LAM生产的钢构件的性能。为了帮助研究人员和工程师获得这一快速增长领域的最新信息和知识,本工作概述了目前对钢,特别是奥氏体钢、铁素体钢、双相钢和马氏体钢的LAM研究,重点是了解工艺、微观结构和机械性能之间的相互关系。这篇综述还包括关于工艺参数、它们的相互作用和LAM后处理对冶金、微观结构和性能的影响的实质性讨论。此外,重点介绍了钢的LAM的进展、持续的挑战和前景。
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引用次数: 36
Large-scale metal additive manufacturing: a holistic review of the state of the art and challenges 大规模金属增材制造:对技术现状和挑战的全面回顾
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-10-13 DOI: 10.1080/09506608.2021.1971427
T. Lehmann, Dylan Rose, E. Ranjbar, M. Ghasri-Khouzani, M. Tavakoli, H. Henein, T. Wolfe, Ahmed Jawad Qureshi
ABSTRACT Additive Manufacturing (AM) has the potential to completely reshape the manufacturing space by removing the geometrical constraints of commercial manufacturing and reducing component lead time, especially for large-scale parts. Coupling robotic systems with direct energy deposition (DED) additive manufacturing techniques allow for support-free printing of parts where part sizes are scalable from sub-metre to multi-metre sizes. This paper offers a holistic review of large-scale robotic additive manufacturing, beginning with an introduction to AM, followed by different DED techniques, the compatible materials and their typical as-built microstructures. Next, the multitude of robotic build platforms that extend the deposition from the standard 2.5 degrees of freedom (DOF) to 6 and 8 DOF is discussed. With this context, the decomposition and slicing of the computerized model will be described, and the challenges of planning the deposition trajectory will be discussed. The different modalities to monitor and control the deposition in an attempt to meet the geometrical and performance specifications are outlined and discussed. A wide range of metals and alloys have been reported and evaluated for large-scale AM parts. These include steels, Ti, Al, Mg, Cu, Ni, Co–Cr and W alloys. Different post-processing steps, including heat treatments, are discussed, along with their microstructures. This paper finally addresses the authors' perspective on the future of the field and the largest knowledge gaps that need to be filled before the commercial implementation of robotic AM.
增材制造(AM)有可能通过消除商业制造的几何限制和缩短部件交货时间来彻底重塑制造空间,特别是对于大型部件。耦合机器人系统与直接能量沉积(DED)增材制造技术允许零件的无支撑打印,零件尺寸可从亚米到多米尺寸。本文对大规模机器人增材制造进行了全面回顾,首先介绍了增材制造,然后介绍了不同的DED技术,兼容材料及其典型的成品微结构。接下来,讨论了将沉积从标准2.5自由度(DOF)扩展到6和8自由度的众多机器人构建平台。在此背景下,将描述计算机模型的分解和切片,并讨论规划沉积轨迹的挑战。不同的模式来监测和控制沉积,试图满足几何和性能规范概述和讨论。广泛的金属和合金已经报道和评估大型增材制造零件。这些包括钢,Ti, Al, Mg, Cu, Ni, Co-Cr和W合金。讨论了不同的后处理步骤,包括热处理,以及它们的显微结构。本文最后阐述了作者对该领域未来的看法,以及在机器人增材制造商业化实施之前需要填补的最大知识空白。
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引用次数: 26
Materials challenges in hydrogen-fuelled gas turbines 氢燃料燃气轮机的材料挑战
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-09-29 DOI: 10.1080/09506608.2021.1981706
E. Stefan, B. Talic, Yngve Larring, A. Gruber, T. Peters
ABSTRACT With the increased pressure to decarbonise the power generation sector several gas turbine manufacturers are working towards increasing the hydrogen-firing capabilities of their engines towards 100%. In this review, we discuss the potential materials challenges of gas turbines fuelled with hydrogen, provide an updated overview of the most promising alloys and coatings for this application, and highlight topics requiring further research and development. Particular focus is given to the high-temperature oxidation of gas turbine materials exposed to hydrogen and steam at elevated temperatures and to the corrosion challenges of parts fabricated by additive manufacturing. Other degradation mechanisms such as hot corrosion, the dual atmosphere effect and hydrogen diffusion in the base alloys are also discussed.
摘要随着发电行业脱碳压力的增加,几家燃气轮机制造商正在努力将其发动机的氢气燃烧能力提高到100%。在这篇综述中,我们讨论了以氢为燃料的燃气轮机的潜在材料挑战,提供了最有前景的合金和涂层的最新概述,并强调了需要进一步研究和开发的主题。特别关注暴露在高温氢气和蒸汽中的燃气轮机材料的高温氧化,以及增材制造零件的腐蚀挑战。还讨论了其他降解机制,如热腐蚀、双气氛效应和氢在基合金中的扩散。
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引用次数: 24
The evolution of mechanical actuation: from conventional actuators to artificial muscles 机械驱动的演变:从传统的驱动器到人造肌肉
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-09-02 DOI: 10.1080/09506608.2021.1971428
C. Greco, P. Kotak, L. Pagnotta, Caterina Lamuta
ABSTRACT Mechanical actuators are defined as mechanical devices that convert an input energy into motion. Since the 1990s, advancements in the fields of robotics and automation have produced a critical need for the development of lightweight and efficient actuators capable of human-like motion. In the past few decades, extensive research activities in the fields of materials science and smart materials have led to the development of a novel type of actuator known as artificial muscles. This review paper describes the evolution of mechanical actuators from conventional technologies such as electric, hydraulic, and pneumatic actuators, to bioinspired artificial muscles. The working mechanism, manufacturing process, performance, and applications of different artificial muscles are described and compared with those of conventional actuators. Details on the cost, input sources, activation modes, advantages, and drawbacks of each artificial muscle technology are also provided to guide the reader through the intricate selection process of the best-suited actuator for a specific application.
机械致动器是指将输入能量转化为运动的机械装置。自20世纪90年代以来,机器人和自动化领域的进步产生了对开发能够进行类人运动的轻型高效致动器的迫切需求。在过去的几十年里,材料科学和智能材料领域的广泛研究活动导致了一种被称为人工肌肉的新型致动器的开发。这篇综述文章描述了机械致动器从传统技术(如电动、液压和气动致动器)到仿生人工肌肉的发展。介绍了不同人工肌肉的工作机理、制造工艺、性能和应用,并与传统致动器进行了比较。还提供了每种人工肌肉技术的成本、输入源、激活模式、优点和缺点的详细信息,以指导读者完成最适合特定应用的致动器的复杂选择过程。
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引用次数: 18
Metallisation of polymers and polymer matrix composites by cold spray: state of the art and research perspectives 聚合物和聚合物基复合材料的冷喷涂金属化:技术现状和研究前景
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-07-20 DOI: 10.1080/09506608.2021.1954805
Het Parmar, F. Tucci, P. Carlone, T. Sudarshan
ABSTRACT Surface treatments on polymer-based materials are frequently used to enhance mechanical and physical properties. Cold spray is a metallisation technique that provides a viable solution to overcome the main drawbacks of conventional thermal spray processing techniques related to surface degradation at high temperatures. This review provides a critical overview on the metallisation of polymers and polymer matrix composites using cold spray. It offers an informative read on different approaches, bonding mechanisms, spraying procedures and parameters that influence the deposition efficiency, and the features of the coating. The future scope section broadly highlights potentially relevant areas for further developments using the method for metallising polymer-based substrates. GRAPHICAL ABSTRACT
摘要聚合物基材料的表面处理经常用于提高机械和物理性能。冷喷涂是一种金属化技术,它提供了一种可行的解决方案,以克服传统热喷涂处理技术在高温下表面降解的主要缺点。这篇综述对使用冷喷涂的聚合物和聚合物基复合材料的金属化进行了重要综述。它提供了关于影响沉积效率的不同方法、粘合机制、喷涂程序和参数以及涂层特征的信息。未来的范围部分广泛强调了使用聚合物基基底金属化方法进行进一步开发的潜在相关领域。图形摘要
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引用次数: 32
Towards high-temperature applications of aluminium alloys enabled by additive manufacturing 通过增材制造实现铝合金的高温应用
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-07-16 DOI: 10.1080/09506608.2021.1951580
Richard A. Michi, A. Plotkowski, A. Shyam, R. Dehoff, S. Babu
ABSTRACT Research on powder-based additive manufacturing of aluminium alloys is rapidly increasing, and recent breakthroughs in printing of defect-free parts promise substantial movement beyond traditional Al–Si–Mg) systems. One potential technological advantage of aluminium additive manufacturing, however, has received little attention: the design of alloys for use at T > ~200°C, or ~1/2 of the absolute melting temperature of aluminium. Besides offering lightweighting and improved energy efficiency through replacement of ferrous, titanium, and nickel-based alloys at 200–450°C, development of such alloys will reduce economic roadblocks for widespread implementation of aluminium additive manufacturing. We herein review the existing additive manufacturing literature for three categories of potential high-temperature alloys, discuss strategies for optimizing microstructures for elevated-temperature performance, and highlight gaps in current research. Although extensive microstructural characterisation has been performed on these alloys, we conclude that evaluations of their high-temperature mechanical properties and corrosion responses are severely deficient.
摘要:对铝合金粉末增材制造的研究正在迅速增加,最近在无缺陷零件印刷方面取得的突破有望大大超越传统的Al–Si–Mg)系统。然而,铝增材制造的一个潜在技术优势很少受到关注:设计在T>~200°C或铝绝对熔融温度的1/2下使用的合金。除了通过在200–450°C下更换铁基、钛基和镍基合金来实现轻量化和提高能效外,此类合金的开发还将减少广泛实施铝增材制造的经济障碍。我们在此回顾了三类潜在高温合金的现有增材制造文献,讨论了优化高温性能微观结构的策略,并强调了当前研究中的空白。尽管对这些合金进行了广泛的微观结构表征,但我们得出的结论是,对其高温力学性能和腐蚀响应的评估严重不足。
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引用次数: 93
Correction 校正
IF 16.1 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2021-07-04 DOI: 10.1080/09506608.2020.1755485
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引用次数: 0
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International Materials Reviews
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