Open AccessProduction of hollow ceramic rods by SHS extrusion
Author(s) -
А. П. Чижиков,
А. М. Столин,
П. М. Бажин,
М. И. Алымов
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-56524846709-711
Subject(s) - extrusion , ceramic , materials science , rod , chromium , boride , raw material , composite material , metallurgy , die (integrated circuit) , aluminium , nanotechnology , chemistry , medicine , alternative medicine , organic chemistry , pathology
The possibility of producing hollow ceramic rods from an Al2O3-based material by SHS extrusion was first shown. A mechanism of formation of such rods by die swell was proposed. It was demonstrated that, at high temperatures, the material can have viscoelastic properties. The studies were performed in the system 2B2O3-6Al-2Cr2O3, in which a ceramic material based on aluminum and chromium oxides with strengthening chromium boride particles forms by self-propagating high temperature synthesis and redox reactions.