G. G. Martyushov, A. M. Zakharevich, S. Ya. Pichkhidze, V. A. Koshuro, “Reducing the open porosity of pyroboroncarbon articles”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2016, Volume 42, Issue 4,Pages <nobr>46

Reducing the open porosity of pyroboroncarbon articles

G. G. Martyushov^a, A. M. Zakharevich^b, S. Ya. Pichkhidze^a, V. A. Koshuro^a

^a Yuri Gagarin State Technical University of Saratov
^b Saratov State University

Abstract: It is established that a decrease in the open porosity of pyroboroncarbon, a pyrolytic glassy composite material of interest for manufacturing prosthetic heart valves (PHVs), can be achieved via impregnation of articles with an alcohol solution of 3-aminopropyltriethoxysilane and subsequent thermal treatment. The maximum roughness height and linear size of open pores on the surface of PHV parts made of pyroboroncarbon can additionally be reduced by final mechanical processing of a silicon oxide film formed on the surface.

Keywords: Alcohol Solution, Technical Physic Letter, Open Porosity, Scanning Electron Micro, Prosthetic Heart Valve.

Received: 16.04.2015