scholarly journals Initial and Recrystallization Textures of Nickel Electrodeposits

2000 ◽  
Vol 34 (2-3) ◽  
pp. 159-169 ◽  
Author(s):  
Insoo Kim ◽  
Sae Gwang Lee

The texture of electrodeposits vary with deposition conditions. Electrodeposits texture is also related to microstructure, surface morphology and mechanical properties. When the electrodeposits annealed, the recrystallization texture may be different from the original deposition texture. The surface morphology, the microstructure and the initial and recrystallization textures of nickel electrodeposits vary with deposition conditions.The 〈100〉 and 〈110〉 textures of nickel electrodeposits can be obtained from nickel sulfate, nickel chloride and boric acid baths. The size of surface asperities decreases with increasing current density and decreasing temperature. The 〈100〉 and 〈110〉 textures of nickel electrodeposits changed to the 〈100〉 and 〈310〉 texture, when recrystallized, respectively.

2020 ◽  
Vol 841 ◽  
pp. 82-86
Author(s):  
Yang Zhong Chen ◽  
Han Wang ◽  
Fei Yu Fang ◽  
Hui Mei ◽  
Li Wang

The electrospun nanofiber/graphene composites is a promising candidate in the field of flexible strain sensors due to the synergic effect of graphene and the nanofibers. It is an effective way to synthesize a uniform graphene-embedded film by simultaneously electrospinning nanofibers and electrospraying graphene nanosheets. In this paper, we prepare two specimens of different materials to study the interaction between graphene nanosheets and nanofibers under the same process parameters, such as thermoplastic urethane (TPU), polyacrylonitrile (PAN). Then, morphology and mechanical properties are used to characterize the interaction. The mechanical test was conducted by the tensile tester, and the surface morphology of electrospun nanofibrous films was observed through a microscope. By comparing these results, the properties of the graphene nanosheets embedded to different nanofibers are explored. This study provides a good way to select an appropriate nanofiber matrix for the application in flexible strain sensors.


2012 ◽  
Vol 557-559 ◽  
pp. 1971-1974
Author(s):  
Cheng Xi Wang ◽  
Ji Hua Peng ◽  
Xian Wen Liang ◽  
Jun Tian

The Cr1-xAlxN coatings were deposited onto M2 tool steel using ion arc plating technique. The effect of current density on the surface morphology and mechanical properties of TiN/CrAlN coating was made. It was found that adjusting the pure metal target currents is not only to change the metal atomic ratio, but also to influence the surface morphology, their hardness and adhesion. The micro hardness Hv increases almost linearly with Al content of the coating in this study, and the Cr0.41Al0.59N coating reaches Hv 2950. The adhesion force between the coating and the substrate reaches maximum value 55N, when the [Al]/[Al+Cr] ratio is 0.44.


2008 ◽  
Vol 13 (8b) ◽  
pp. 1644-1652 ◽  
Author(s):  
Adam Reich ◽  
Michael Meurer ◽  
Beate Eckes ◽  
Jens Friedrichs ◽  
Daniel J. Muller

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