The sol-gel and hydrophobic properties of antifriction coatings for use in high-speed mini-turbogenerators

Autor:	T. V. Khamova, Olga A. Shilova, V. N. Antipov, N. E. Esipova, I. Yu. Kruchinina, E. Yu. Ladilina, K. E. Pugachev, O. I. Proskurina
Rok vydání:	2014
Předmět:	chemistry.chemical_classification Test setup Materials science Rotor (electric) Doping Polymer Condensed Matter Physics law.invention chemistry.chemical_compound chemistry Drag law Conversion coating Materials Chemistry Ceramics and Composites Composite material Sol-gel Organosilicon
Zdroj:	Glass Physics and Chemistry. 40:319-323
ISSN:	1608-313X 1087-6596
DOI:	10.1134/s1087659614030201
Popis:	The state of the surface of organic-inorganic coatings derived by sol-gel technology on a steel surface and their effect on the reduction of the air friction losses of a mini-turbogenerator rotor were studied. Two hypotheses about the effect of the surface condition on the reduction of the air friction losses—by improving the surface smoothness and by creating a superhydrophobic surface—were suggested and tested. Smooth epoxy-titanate coatings including those doped with a fluorine-containing organosilicon polymer and superhydrophobic surfaces based on hydrolyzed methyltriethoxysilane with an aerosol additive were tested on a model mini-turbogenerator test setup. It was established that the smooth coatings reduce the total friction losses of the mini-turbogenertor by ∼5%, while the superhydrophobic coatings reduce them by ∼7%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::72580dc9420c6848e4bc5159aa7372e0 https://doi.org/10.1134/s1087659614030201 Zobrazit plný text záznamu Full text from SpringerLink