Ultraviolet nanosecond laser treatment to reduce the friction coefficient of silicon carbide ceramics

Murzin, Serguei P.; Balyakin, Valeriy B.; Gachot, Carsten; Fomchenkov, Sergey A.; Blokhin, Maksim V.; Kazanskiy, Nikolay L.

doi:10.3390/app112411906

Record link:

http://hdl.handle.net/20.500.12708/139095

Title:

Ultraviolet nanosecond laser treatment to reduce the friction coefficient of silicon carbide ceramics

Citation:

Murzin, S. P., Balyakin, V. B., Gachot, C., Fomchenkov, S. A., Blokhin, M. V., & Kazanskiy, N. L. (2021). Ultraviolet nanosecond laser treatment to reduce the friction coefficient of silicon carbide ceramics. Applied Sciences, 11(24), Article 11906. https://doi.org/10.3390/app112411906

Publisher DOI:

10.3390/app112411906

CatalogPlus:

AC17604340

Publication Type:

Article - Original Research Article

Language:

English

Authors:

Murzin, Serguei P.
Balyakin, Valeriy B.
Gachot, Carsten
Fomchenkov, Sergey A.
Blokhin, Maksim V.
Kazanskiy, Nikolay L.

Organisational Unit:

E307-02-3 - Forschungsgruppe Tribologie

Journal:

Applied Sciences

ISSN:

2076-3417

Date (published):

14-Dec-2021

Number of Pages:

Publisher:

MDPI

Peer reviewed:

Yes

Keywords:

Computer Science Applications; General Engineering; General Materials Science; Instrumentation; Fluid Flow and Transfer Processes; Process Chemistry and Technology; ultraviolet nanosecond laser; silicon carbide ceramics; friction coefficient; surface mi- crostructuring; gas-dynamic seals

Abstract:

The determination of the possibility for the reduction of the friction coefficient of ceramic parts from silicon carbide by pulse-periodic treatment with an ultraviolet nanosecond laser was carried out in the framework of this research. The gas-dynamic seal of the compressor rotor of the gas-turbine engine after hot isostatic pressing and mechanical treatment was exposed to surface microstructuring in a pulse-periodic mode. For experimental investigations, a laser with a maximum energy of the pulse of 50 μJ, a wavelength of 355 nm, and a pulse duration below 10 ns was used. It was determined that the surface quality was improved, and the surface roughness was reduced as a consequence of the realized laser polishing modes in the beam exposure area. The average value of the friction coefficient of the ceramic material surface decreased by 15% as result of pulse-periodic laser processing.

Research Areas:

Materials Characterization: 20%
Non-metallic Materials: 80%

Science Branch:

Maschinenbau

License:

CC BY 4.0