Composition and Microstructure Control of Tin-Bismuth Alloys in the Pulse Plating Process

2011 ◽  
Vol 158 (8) ◽  
pp. D482 ◽  
Author(s):  
Yi-Da Tsai ◽  
Chi-Chang Hu
Keyword(s):  
Pulse Plating ◽  
Microstructure Control

A review of clay based photocatalysts: Role of phyllosilicate mineral in interfacial assembly, microstructure control and performance regulation

Chemosphere ◽  
2021 ◽  
Vol 273 ◽  
pp. 129723
Author(s):  
Chunquan Li ◽  
Ningyuan Zhu ◽  
Shanshan Yang ◽  
Xuwen He ◽  
Shuilin Zheng ◽  
...  
Keyword(s):  
Microstructure Control ◽  
Interfacial Assembly ◽  
And Performance

scholarly journals Influence of Pulse Current Forward-Reverse Duty Cycle on Structure and Performance of Electroplated W–Cu Composite Coatings

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1233
Author(s):  
Yuchao Zhao ◽  
Nan Ye ◽  
Haiou Zhuo ◽  
Chaolong Wei ◽  
Weiwei Zhou ◽  
...  
Keyword(s):  
Composite Coating ◽  
Duty Cycle ◽  
Electrode Materials ◽  
Pulse Current ◽  
Electrical Discharge Machining ◽  
Composite Coatings ◽  
Electrical Contact ◽  
Pulse Plating ◽  
Fusion Welding ◽  
Raw Material

Tungsten-copper (W–Cu) composites are widely used as electrical contact materials, resistance welding, electrical discharge machining (EDM), and plasma electrode materials due to their excellent arc erosion resistance, fusion welding resistance, high strength, and superior hardness. However, the traditional preparation methods pay little attention to the compactness and microstructural uniformity of W–Cu composites. Herein, W–Cu composite coatings are prepared by pulse electroplating using nano-W powder as raw material and the influence of forward-reverse duty cycle of pulse current on the structure and mechanical properties is systematically investigated. Moreover, the densification mechanism of the W–Cu composite coating is analyzed from the viewpoints of forward-pulse plating and reverse-pulse plating. At the current density (J) of 2 A/dm2, frequency (f) of 1500 Hz, forward duty cycle (df) of 40% and reverse duty cycle (dr) of 10%, the W–Cu composite coating rendered a uniform microstructure and compact structure, resulting in a hardness of 127 HV and electrical conductivity of 53.7 MS/m.

Rare earth permanent magnetic nanostructures: chemical design and microstructure control to optimize magnetic properties

2021 ◽  
Author(s):  
Junjie Xu ◽  
Kai Zhu ◽  
Song Gao ◽  
Yanglong Hou
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Exchange Coupling ◽  
Magnetic Nanostructures ◽  
Microstructure Control ◽  
Size And Shape ◽  
Chemical Design

The routes for the optimization of the magnetic properties of rare earth permanent magnetic nanostructures are discussed, i.e. the control of microstructure, such as size and shape as well as the exchange-coupling interactions.

scholarly journals Microstructure control of ferrous driven part fabricated by warm precision forging

2018 ◽  
Vol 15 ◽  
pp. 404-410 ◽  
Author(s):  
Youngseon Lee ◽  
Eunyoo Yoon ◽  
Taedoo Nho ◽  
Younghoon Moon
Keyword(s):  
Microstructure Control ◽  
Precision Forging
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