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fabrication,properties,and applications of open-cell aluminum foams:A review

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Journal of Materials Science & Technology 2021年第3期62卷 11-24页

作者： Tan Wan Yuan Liu Canxu Zhou Xiang Chen Yanxiang Li School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology(Ministry of Education) Beijing 100084China

Open-cell metallic foams or porous metals have a distinctive combination of excellent structural performance and superior functional characteristics,such as their light weight,energy absorption,sound absorption,heat dissipation,and electromagnetic *** a primary representative of metallic foams,aluminum foam has developed into a new engineering material with many unique applications in the fields of aerospace,automotive industry,petrochemical industry,building materials,and *** paper summarizes the fabrication methods,properties,and applications of open-cell aluminum *** current status and development trends are also introduced.

关键词： Open-cell aluminum foam fabrication method Property Application

Shape Memory Alloy-Reinforced Metal-Matrix Composites:A Review

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Acta Metallurgica Sinica(English Letters) 2014年第5期27卷 739-761页

作者： D.R.Ni Z.Y.Ma Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences

Metal-matrix composites reinforced with shape memory alloys （SMA, including long fiber, short fiber, and particle） are ＂intelligent materials＂ with many special physical and mechanical properties, such as high damping property, high tensile strength, and fatigue resistance. In this review article, the fabrication method, microstructure, interface reaction, modeling, and physical and mechanical properties of the composites are addressed. Particular emphasis has been given to （a） fabrication and microstructure of aluminum matrix composites reinforced with SMAs, and （b） shape memory effect on the physical and mechanical properties of the composites. While the bulk of the information is related to aluminum matrix composites, important results are now available for other metal-matrix composites.

关键词： Metal-matrix composites Shape memory alloy fabrication method Microstructure Interface reaction Mechanical properties

The impact of NiO on microstructure and electrical property of solid oxide fuel cell anode

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第11期6卷 1124-1129页

作者：李彦骆仲泱余春江罗丹许祝安岑可法 Institute for Thermal Power Engineering Clean Energy and Environment Engineering Key Laboratory of Ministry of Education Zhejiang University Department of Physics Zhejiang University

Ni-Ce0.8Sm.2O.9 （Ni-SDC） cermet was selected as anode material for reduced temperature （800℃） solid oxide fuel cells in this study. The influence of NiO powder fabrication methods for Ni-SDC cermets on the electrode performance was investigated so that the result obtained can be applied to make high-quality anode. Three kinds of NiO powder were synthesized with a fourth kind being available in the market. Four types of anode precursors were fabricated with these NiO powders and Ce0.8Sm.2O.9 （SDC）, and then were reduced to anode wafers for sequencing measurement. The electrical conductivity of the anodes was measured and the effect ofmicrostructure was investigated. It was found that the anode electrical conductivity depends strongly on the NiO powder morphologies, microstructure of the cermet anode and particle sizes, which are decided by NiO powder preparation technique. The highest electrical conductivity is obtained for anode cermets with NiO powder synthesized by NiCO3-2Ni（OH）2-4H2O or Ni（NO3）2-6H2O decomposition technique.

关键词： Solid oxide fuel cell Ni-SDC anode Electrical conductivity Microstructure NiO powder fabrication method

fabrication,magnetostriction properties and applications of Tb-Dy-Fe alloys:a review

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China Foundry 2016年第2期13卷 75-84页

作者： Nai-juan Wang Yuan Liu Hua-wei Zhang Xiang Chen Yan-xiang Li School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology(Ministry of Education) Beijing 100084China

As an excellent giant-magnetostrictive material, Tb-Dy-Fe alloys(based on Tb0.27-0.30Dy0.73-0.70Fe1.9-2Laves compound) can be applied in many engineering fields, such as sonar transducer systems, sensors, and micro-actuators. However, the cost of the rare earth elements Tb and Dy is too high to be widely applied for the materials. Nowadays, there are two different ways to substitute for these alloying elements. One is to partially replace Tb or Dy by cheaper rare earth elements, such as Pr, Nd, Sm and Ho; and the other is to use non-rare earth elements, such as Co, Al, Mn, Si, Ce, B, Be and C, to substitute Fe to form single MgCu_2-type Laves phase and a certain amount of Re-rich phase, which can reduce the brittleness and improve the corrosion resistance of the alloy. This paper systemically introduces the development, the fabrication methods and the corresponding preferred growth directions of Tb-Dy-Fe alloys. In addition, the effects of alloying elements and heat treatment on magnetostrictive and mechanical properties of Tb-Dy-Fe alloys are also reviewed, respectively. Finally, some possible applications of Tb-Dy-Fe alloys are presented.

关键词： magnetostriction Tb-Dy-Fe alloy fabrication method applications

Development in p-type Doping of ZnO

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Journal of Wuhan University of Technology(Materials Science) 2012年第6期27卷 1184-1187页

作者：俞丽萍朱其锵 FAN Dayong IANZili Department of Physical Education School of Hubei University Department of Technology of Civil Engineering and Architecture Wuhan University of Technology Department of Technology of Polymer Materials and Engineering Changchun University of TechnologyJilin 130012China Hubei University of Economics Sports Department Wuhan 430205China

Zinc oxide （ZnO） is a wide band-gap material of the Ⅱ-Ⅵ group with excellent optical properties for optoelectronics applications, such as the flat panel displays and solar cells used in sports tournament. Despite its advantages, the application of ZnO is hampered by the lack of stable p-type doping. In this paper, the recent progress in this field was briefly reviewed, and a comprehensive summary of the research was carded out on ZnO fabrication methods and its electrical, optical, and magnetic properties were presented.

关键词： ZnO p-type doping fabrication method optoelectronics applicatio

fabrication and Investigation of the Magnetic Properties of Co and Co3O4 Nanoparticles

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Optics and Photonics Journal 2016年第8期6卷 62-68页

作者： Fardin Taghizadeh Department of Physics College of Sciences Yasouj University Yasouj Iran

The nanoparticles exhibit some novel optical and magnetic properties, which are different from its bulk material. Cobalt oxide has been known as a semi-conductor compound of p type with a Spinel structure. Therefore, they are used as gas sensor and absorbent of solar energy. Furthermore, they are employed as an effective catalyzer in environmental clearing. In the thermal gradation method, carbonyl cobalt Co2(CO)8 is often used as a precursor, though cobalt carbonyl is very toxic and expensive. Magnetic compounds have been among interesting issues for human beings for over 4000 years. In large societies, magnetic compounds including computer disks, credit cards, speakers, coolers, automatic doors, and many other devices can be observed on a daily basis. The structure and morphology of as-prepared Co3O4 nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). The TEM images showed that the product nanoparticles consisted of dispersive quasi- spherical particles with a narrow size distribution ranged from 5 to 15 nm and an average size around 10 nm. The magnetic measurements confirmed that the Co3O4 nanoparticles show a little ferromagnetic behavior which could be attributed to the uncompensated surface spins and finite size effects. The ferromagnetic order of the Co3O4 nanoparticles is raised with increasing the decomposition temperature.

关键词： Magnetic Properties Nano Particles fabrication method Co3O4

Unraveling the Passivation Process of PbI2 to Enhance the Efficiency of Planar Perovskite Solar Cells

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Unraveling the Passivation Process of PbI2 to Enhance the Ef...