Open AccessRheological properties of MgAl2O4 obtained from preceramic organomagnesiumoxanealumoxanes
Author(s) -
E. A. Gumennikova,
Д. Д. Титов,
А. С. Лысенков,
М. Г. Фролова,
Yu. F. Kargin,
Г. И. Щербакова,
E. A. Novokovskaya
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1347/1/012062
Subject(s) - spinel , materials science , rheology , grinding , ceramic , microstructure , pressing , composite material , stress (linguistics) , sintering , phase (matter) , aluminium , metallurgy , chemistry , linguistics , philosophy , organic chemistry
In this study, a detailed study of ceramic spinel powder obtained by the new method was carried out. Namely, the study of the influence of the pyrolysis temperature of the oligomer and grinding time on the microstructure, phase composition and rheological properties of spinel during pressing. Graphs of the dependences “stress-strain” and “stress – relative density” were obtained, which characterize the rheological properties of aluminium-magnesium spinel obtained in a new way. Analyzing the obtained dependences, we can conclude that with an increase in the pyrolysis temperature, spinel is more natural to deform, which is associated with a change in structure. According to the data obtained, a dependence on the growth of the elastic modulus after grinding is also observed.