Synthesis of co-deposited hexagonal boron nitride for thermally-efficient tribological performance
Research in the area of alloyed deposition on ceramic particles is gaining widespread acceptance in tribology community to produce advanced wear-resistance surfaces by environmentally acceptable coating technologies. In this study, autocatalytic electroless deposition technique was used to incorp...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/42922/ http://irep.iium.edu.my/42922/ http://irep.iium.edu.my/42922/ http://irep.iium.edu.my/42922/1/42922_-Synthesis_of_co-deposited_hexagonal_boron_nitride_for_thermally-efficient_tribological_performance.pdf |
| Summary: | Research in the area of alloyed deposition on ceramic particles is gaining widespread
acceptance in tribology community to produce advanced wear-resistance surfaces by
environmentally acceptable coating technologies. In this study, autocatalytic electroless deposition
technique was used to incorporate hexagonal boron nitride (hBN) lubricant particles in nickelphosphorous
matrix. The substrate particles were subjected to series of pretreatment operations
prior to electroless co-deposition process. Surface morphology and composition of pure hBN and
treated powders were characterized by means of scanning electron microscopy (SEM), energy
dispersive x-ray (EDX) and field emission scanning electron microscopy (FESEM). The results
revealed that the pretreated particles have rough and increased surface area that aided deposition
process. It was also found that uniform Ni-P alloy layer was successfully synthesized on Ni-coated
hBN powder. Thus, the developed electroless co-deposited hBN composite powder may be
regarded as an advanced solid lubricant material coating which may either be directly applied on the
sliding mating surfaces or deposited by laser-cladding, TIG torch melting or thermal spaying, etc to
improve the surface properties of metallic substrates against wear and friction for high temperature
applications. |
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