Develop nanocomposite material of TiO2/Al2O3 using electrophoretic deposition
The methods have been developed for the manufacture of electrochemical deposition of coatings nanocomposite . Methods based on the electrophoretic deposition of nanoparticles . The method was developed for the deposition of EPD TiO2 nanostructured films Al2O3 use of new agents to disperse . Copper h...
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| Format: | Thesis |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/53476/25/MonafAliRahemMFKM2014.pdf |
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| Summary: | The methods have been developed for the manufacture of electrochemical deposition of coatings nanocomposite . Methods based on the electrophoretic deposition of nanoparticles . The method was developed for the deposition of EPD TiO2 nanostructured films Al2O3 use of new agents to disperse . Copper has good corrosion resistance at room temperature , excellent malleability reproduction and susceptibility and electrical connections and high thermal , and apart from this it is cheap and abundantly available other metals from metals such as silver good measure . But poor mechanical properties such as hardness and wear resistance . Some applications , such as telecommunications switches require improvements in mechanical properties without losing a lot of heat and electrical connections . I have tried most of the modification alloying , but restrictions have been reported in alloying and reduce the negative in the thermal and electrical connections to it. Another way to improve the mechanical properties are modified with the surface through the development of composite coating on its surface .. has developed a coating with 10 g / l , and 30 g / l and 0 g / l concentrations that are not supported in the bath , in four different current densitie ( 5 A/dm2) with the use of copper sulfate bath in order to study the effect of current density and the concentration of particles in the bath , on the structure and properties of advanced coating . The average crystal size in 64 -71 nm , and was obtained ( 220 ) strong texture in the paint and coatings copper compound is backed by identifying data XRD. Has been studied morphology and composition of the paint surface using SEM. Been determined hardness and wear resistance of coatings using micro- hardness testing and the ball on the plate wear test , and improve the hardness and wear resistance of the composite coatings were observed compared with copper paint is supported. |
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