Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Electrodeposited Nickel Coatings on Magnetic and Nonmagnetic Substrates

1996 ◽  
Author(s):  
Keyword(s):  
Test Method ◽  
Magnetic Method ◽  
Nickel Coatings ◽  
Electrodeposited Nickel

scholarly journals Micromechanical and structural properties of nickel coatings electrodeposited on two different substrates

2009 ◽  
Vol 74 (7) ◽  
pp. 817-831 ◽  
Author(s):  
Jelena Lamovec ◽  
Vesna Jovic ◽  
Radoslav Aleksic ◽  
Vesna Radojevic
Keyword(s):  
Structural Properties ◽  
Current Density ◽  
Composite Structures ◽  
Single Crystal Silicon ◽  
Crystal Silicon ◽  
Nickel Coatings ◽  
Electrodeposited Nickel ◽  
Cold Rolled ◽  
Composite Hardness ◽  
Substrate Hardness

Fine-structured nickel coatings were electrodeposited from a sulfamate-based electrolyte onto different substrates: polycrystalline cold-rolled copper and single crystal silicon with (111) orientation. The influence of the substrate layers and chosen plating conditions on the mechanical and structural properties of these composite structures were investigated by Vickers microhardness testing for different loads. Above a certain critical penetration depth, the measured hardness value was not the hardness of the electrodeposited film, but the so-called 'composite hardness', because the substrate also participated in the plastic deformations during the indentation process. Two composite hardness models (Chicot-Lesage and Korsunsky), constructed on different principles, were chosen and applied to the experimental data in order to distinguish film and substrate hardness. The microhardness values of the electrodeposited nickel layers were mainly influenced by the current density. Increasing the current density led to a decrease in grain size, which resulted in higher values of the microhardness.

Analysis of the composite and film hardness of electrodeposited nickel coatings on different substrates

2008 ◽  
Vol 516 (23) ◽  
pp. 8646-8654 ◽  
Author(s):  
J. Lamovec ◽  
V. Jović ◽  
D. Randjelović ◽  
R. Aleksić ◽  
V. Radojević
Keyword(s):  
Nickel Coatings ◽  
Film Hardness ◽  
Electrodeposited Nickel
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