The preparation, characterization, and influence of multiple electroless nickel-phosphorus (Ni-P) hollow composite coatings on micro-nano cellulose fibers

2016 ◽  
Vol 298 ◽  
pp. 33-38 ◽  
Author(s):  
Yan-Fei Pan ◽  
Zhi-Qing Guo ◽  
Tong-Cheng Guo ◽  
Xin Wang ◽  
Jin-Tian Huang
Author(s):  
Yan-Fei Pan ◽  
Jin-Tian Huang ◽  
Xin Wang

Ni-P composite coatings were prepared on cellulose fiber surface via a simple electroless Ni-P approach. The metal-coated extent, dispersion extent of micro or nano cellulose fibers and crystalline structure of Ni-P composite coatings were investigated. The homogeneous hollow composite coatings and metal-coated extent of micro or nano cellulose fibers were improved with the increase in ultrasonic power, and the ideal composite coatings were obtained as ultrasonic up to 960 W. The metallization for cellulose fibers enhanced the dispersion extent of micro or nano cellulose fibers. A uniform coating, consisting of the hollow coating on cellulose fibers surface, could be obtained. At the same time, metallization did not damage the original structure and surface functional groups of cellulose fibers. The concentration of cellulose fibers and ultrasonic power had a direct influence on the metal-coated extent of cellulose fiber surface. The metal-coated extent, dispersion extent of micro or nano cellulose fibers and crystalline structure of Ni-P composite coatings exhibited excellent properties as the concentration of cellulose fibers and ultrasonic power were 2 g/L and 960 W, respectively.


2020 ◽  
Vol 144 ◽  
pp. 112035 ◽  
Author(s):  
Zineb Kassab ◽  
Said Mansouri ◽  
Youssef Tamraoui ◽  
Houssine Sehaqui ◽  
Hassan Hannache ◽  
...  

Author(s):  
Prasanna Gadhari ◽  
Prasanta Sahoo

Electroless nickel composite coatings possess excellent mechanical and tribological properties such as, hardness, wear and corrosion resistance. Composite coatings can easily be coated not only on electrically conductive materials but also on non-conductive materials like as fabrics, plastics, rubber, etc. This review emphasizes on the development of electroless nickel composite coatings by incorporating different types of hard/soft particles (micro/nano size) in the electroless Ni-P matrix to improve the mechanical and tribological properties of the coatings. The preparation of electroless bath for nickel-phosphorus composite coating, methods to incorporate hard and/or soft particles in the bath, factors affecting the particle incorporation in the coating and its effect on coating structure, hardness, wear resistance, friction behavior, corrosion resistance, and mechanical properties are discussed thoroughly.


2016 ◽  
Vol 147 ◽  
pp. 282-293 ◽  
Author(s):  
Bamdad Barari ◽  
Emad Omrani ◽  
Afsaneh Dorri Moghadam ◽  
Pradeep L. Menezes ◽  
Krishna M. Pillai ◽  
...  

Vacuum ◽  
2018 ◽  
Vol 155 ◽  
pp. 553-558 ◽  
Author(s):  
Bo Liu ◽  
Yanfei Pan ◽  
Guangming Sun ◽  
Jintian Huang

2017 ◽  
pp. 1303-1326
Author(s):  
Prasanna Gadhari ◽  
Prasanta Sahoo

Electroless nickel coatings are widely popular in various industrial sectors due to their excellent tribological properties. The present study considers optimization of coating parameters along with annealing temperature to improve microhardness and corrosion resistance of Ni-P-TiO2 composite coatings. Grey relational analysis is used to find out the optimal combination of coating parameters. From the analysis, it is confirmed that annealing temperature of the coating has the most significant effect and amount of titanium particles in the coating has some significant effect on corrosion properties of the coating. The same trend is observed in case of combined study of corrosion behavior and microhardness. The surface morphology, phase transformation and the chemical composition are examined using scanning electron microscopy, X-ray diffraction analysis and energy dispersive analysis respectively. The Ni-P-TiO2 composite coating revealed nodular structure with almost uniform distribution of titanium particles and it turns in to crystalline structure after heat treatment.


2019 ◽  
Vol 6 (6) ◽  
pp. 646-665
Author(s):  
Mohamed Samy El-Feky ◽  
◽  
Passant Youssef ◽  
Ahmed Maher El-Tair ◽  
Sara Ibrahim ◽  
...  

2019 ◽  
Vol 207 ◽  
pp. 1299-1308 ◽  
Author(s):  
Wei Shang ◽  
Xiaoqiang Zhan ◽  
Yuqing Wen ◽  
Yuqing Li ◽  
Zhe Zhang ◽  
...  

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