Synthesis and structure of cobalt layer silicate

1989 ◽  
Vol 6 (1) ◽  
pp. 56-57 ◽  
Author(s):  
Jong Rack Sohn ◽  
Jin Ick Jeon
Keyword(s):  
Layer Silicate ◽  
Cobalt Layer

X-ray Diffraction by a Layer Silicate containing Stacking Faults

Nature ◽  
1964 ◽  
Vol 201 (4914) ◽  
pp. 63-64 ◽  
Author(s):  
R. STEADMAN
Keyword(s):  
Stacking Faults ◽  
Layer Silicate ◽  
X Ray Diffraction ◽  
X Ray

Cross-Linked Co3O4 Nanowalls Synthesized by Electrochemical Oxidation of Metallic Cobalt Layer for Oxygen Evolution

2012 ◽  
Vol 1 (2) ◽  
pp. H8-H10 ◽  
Author(s):  
N. Zhang ◽  
Y. Fan ◽  
H. Fan ◽  
H. Shao ◽  
J. Wang ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Oxygen Evolution ◽  
Metallic Cobalt ◽  
Cobalt Layer

scholarly journals Enhanced Mechanical and Tribological Capabilities of a Silicon Aluminum Alloy with an Electroplated Ni–Co–P/Si3N4 Composite Coating

Metals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 120
Author(s):  
Zhijie Li ◽  
Fei Ma ◽  
Dongshan Li ◽  
Shanhong Wan ◽  
Gewen Yi ◽  
...  
Keyword(s):  
Abrasive Wear ◽  
Composite Coating ◽  
Composite Coatings ◽  
Engine Oil ◽  
Si Substrate ◽  
Wear Performance ◽  
Cobalt Layer ◽  
Hard Chrome ◽  
Electroplating Process ◽  
Hardness Values

Ni–Co–P/Si3N4 composite coatings were fabricated over an aluminum–silicon (Al–Si) substrate using a pulse-current electroplating process, in which the rapid deposition of an intermediate nickel–cobalt layer was used to improve coating adhesion. The microstructure, mechanical, and tribological behaviors of the electroplated Ni–Co–P/Si3N4 composite coating were characterized and evaluated. The results revealed that the electroplated Ni–Co–P/Si3N4 composite coating primarily consisted of highly crystalline Ni–Co sosoloid and P, and a volumetric concentration of 7.65% Si3N4. The electroplated Ni–Co–P/Si3N4 composite coating exhibited hardness values almost two times higher than the uncoated Al–Si substrate, which was comparable to hard chrome coatings. Under lubricated and dry sliding conditions, the electroplated Ni–Co–P/Si3N4 composite coating showed excellent anti-wear performance. Whether dry or lubricated with PAO and engine oil, the composite coating showed minimum abrasive wear compared to the severe adhesive wear and abrasive wear observed in the Al–Si substrate.

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