Effects of Oxide-Modified Spherical ZnO on Electrical Properties of Ag/ZnO Electrical Contact Material

Wei, Zhijun; Zhang, Lingjie; Shen, Tao; Qiao, Zhengyang; Ye, Hui; Fan, Xianping; Chen, Lawson

doi:10.1007/s11665-016-2056-x

Cited by 23 publications

(11 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oxidation with Ag-Zn alloy powder will facilitate the rapid movement and diffusion of oxygen, while oxidation with Ag-Zn alloy plates or wires easily leads to the formation of zinc deficit zones due to the migration of Zn atoms to the surface, Materials in Machinery and Construction whereas [O] diffusion into bulk was limited as the material had through rolling process with dense micro-structure. Therefore, internal oxidation refers to a process of selective oxidation of Zn in Ag-Zn alloy and generation of zinc oxide with dispersion distribution in Ag matrix [8,[31][32][33][34]46] . And the internal oxidation of Ag-Zn alloy can be considered as the process of the diffusion of oxygen atoms into the Ag-Zn grain and the diffusion of part of Zn atoms to the Ag-Zn grain boundary [32] .…”

Section: Sinteredmentioning

confidence: 99%

See 1 more Smart Citation

Research Progress in Silver Zinc Oxide Electrical Contact Material

Zhao

Xie

Fang

et al. 2021

MSF

View full text Add to dashboard Cite

Since the performance of silver metal oxide (Ag/MeO) electrical contact materials directly affects the reliability and service life of switching apparatus, the related research on high-performance Ag/MeO electrical contact materials has not stopped. And with the rapid development of switching apparatus, higher and higher requirements are put forward for the performance of Ag/MeO electrical contact materials. Thanks to low and stable contact resistance, short arc burning time, good resistance to high current impulse (3000-5000 A) and good anti-arc erosion, silver zinc oxide (Ag/ZnO) more than just serves as an indispensable environmentally friendly alternative to silver cadmium oxide (Ag/CdO) electrical contact material, and has become one of the important research hotspots of Ag/MeO in recent years. Nevertheless, Ag/ZnO is suffering the increasingly serious challenges, especially the poor processability and electrical properties due to the easy segregation of zinc oxide (ZnO) during the process of preparation, which urge scholars at home and abroad to seek favorable methods to optimize the Ag/ZnO. As yet, impressive strides have been made in optimization the preparation process, nano-technology and additive modification of materials, and research on the failure mechanism of materials. Aiming to provide reference for optimizing Ag/ZnO electrical contact material, this review retrospects the research progress in Ag/ZnO electrical contact materials in recent years, and expounds the preparation methods, processing technology, modification research and failure mechanism of Ag/ZnO, and points out the future development directions of Ag/ZnO.

show abstract

Section: Sinteredmentioning

confidence: 99%

“…Z.J. Wei [46] successfully prepared Ag/ZnO powder with good crystallinity by coating metal Ag on the surface of ZnO particles by hydrothermal method. J.H.…”

Section: Silver Coating Modificationmentioning

confidence: 99%

Research Progress in Silver Zinc Oxide Electrical Contact Material

Zhao

Xie

Fang

et al. 2021

MSF

View full text Add to dashboard Cite

show abstract

“…The AgZnO, AgCuO, and AgSnO 2 materials are studied most. [ 4–7 ] The AgSnO 2 contact materials in some countries have been industrialized and partially replace the AgCdO materials. [ 8 ] Zhang et al [ 9 ] found that adding additives can change the arcing energy of the contact materials.…”

Section: Introductionmentioning

confidence: 99%

Characterization/mechanical behavior of AgCuOSnO₂ composites: Experimental and finite element study

Yang

Zhou

2021

Polymer Composites

View full text Add to dashboard Cite

Herein, the effects of different content of SnO2 on the stress, strain, and microstructure of AgCuO(10)SnO2(x = 2,5,8) composites during hot extrusion were studied by using finite element analysis and compared with the actual hot extrusion experiment. The results show that cubic CuO gradually becomes fibrous mainly due to shear strain during hot extrusion, but monoclinic CuO and SnO2 only produce slight deformation. After hot extrusion, the reinforced phases CuO and SnO2 are redistributed to make the microstructure more uniform, which is in good agreement with the actual experimental results. In addition, by comparing the mechanical properties of samples with different content of SnO2, when the SnO2 content is 5%, AgCuOSnO2 has the highest conductivity, strain, and tensile strength.

show abstract

“…Therefore, depending on the type of application, contact materials should be optimized to provide reliability, long contact life and low cost [6]. Much work has been done towards producing and evaluating the electrical performances of contact materials [6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Polyethylene Glycol on the Mechanical Alloying Behavior of Cu-W Electrical Contact Material

Biyik

2018

Acta Phys. Pol. A

View full text Add to dashboard Cite

In this study, the effect of polyethylene glycol on the particle size and morphology of Cu25W composite powder was investigated. For this purpose, commercial elemental copper and tungsten powders were milled in a planetary-type ball mill. Milling conditions, namely ball-to-powder weight ratio and milling speed, were selected to be 10:1 and 300 rpm, respectively. In order to avoid agglomeration and to decrease the tendency of cold welding among powder particles, polyethylene glycol at the amount of 2 wt% was used as a process control agent. Morphological evolution of milled powders was investigated using scanning electron microscopy. In addition, the variation of particle size as a function of milling duration was examined using laser diffraction analysis. It was found that powder particle size gradually decreased with increasing milling duration. However, compared to the powder mixture without the process control agent, the powder mixture containing polyethylene glycol tends to lower the milling duration to achieve the same amount of particle size reduction. As a result of this effort, the usage of polyethylene glycol as a process control agent was found to be effective to obtain a composite powder with smaller particle sizes, especially in the earlier stages of milling process.

show abstract

Effects of Oxide-Modified Spherical ZnO on Electrical Properties of Ag/ZnO Electrical Contact Material

Cited by 23 publications

References 29 publications

Research Progress in Silver Zinc Oxide Electrical Contact Material

Research Progress in Silver Zinc Oxide Electrical Contact Material

Characterization/mechanical behavior of AgCuOSnO₂ composites: Experimental and finite element study

Effect of Polyethylene Glycol on the Mechanical Alloying Behavior of Cu-W Electrical Contact Material

Contact Info

Product

Resources

About

Effects of Oxide-Modified Spherical ZnO on Electrical Properties of Ag/ZnO Electrical Contact Material

Cited by 23 publications

References 29 publications

Research Progress in Silver Zinc Oxide Electrical Contact Material

Research Progress in Silver Zinc Oxide Electrical Contact Material

Characterization/mechanical behavior of AgCuOSnO2 composites: Experimental and finite element study

Effect of Polyethylene Glycol on the Mechanical Alloying Behavior of Cu-W Electrical Contact Material

Contact Info

Product

Resources

About

Characterization/mechanical behavior of AgCuOSnO₂ composites: Experimental and finite element study