Open AccessSintering and properties of ZrO2—Al2O3 ceramic material, containing sintering additives.
Author(s) -
Т. О. Оболкина,
M. A. Goldberg,
S. V. Smirnov,
О. А. Антонова
Publication year - 2020
Publication title -
trudy kolʹskogo naučnogo centra ran
Language(s) - English
Resource type - Journals
ISSN - 2307-5252
DOI - 10.37614/2307-5252.2020.3.4.029
Subject(s) - sintering , zirconium dioxide , materials science , ceramic , indentation hardness , aluminum oxide , zirconium , aluminium , zirconium oxide , metallurgy , oxide , chemical engineering , microstructure , engineering
We studied the effect of complex additives containing Na2Si2O5and Co, Fe oxides on the properties and sintering temperature of a ceramic material zirconium dioxide (ZrO2) with an aluminum oxide (Al2O3) content of 10 wt %. It was shown that the introduction of complex additives contributed to the intensification process and a significant increase in the strength and microhardness of the sintered ZrO2—10 % Al2O3. The greatest strength (362 ± 25 МPa) was achieved by sintering at 1250 ° C on the composition of ZrO2—10 % Al2O3—5 % Na2Si2O5+ 0,33 % Fe.