Abstract
The structure and phase composition of ZrO2–MgO powders with the MgO content from 9 to 43 mol % obtained by the plasma chemical method after annealing at 700–1400°С are studied. Differential scanning calorimetry and powder thermogravimetric analysis are carried out. It is found that, in the course of heating, the mass loss and the endothermic reactions energy increase with the increase in the MgO content. In the initial state, the powders containing more than 25 mol % of MgO are supersaturated solid solutions of cubic ZrO2. Water desorption processes and decomposition of residual nitrates are observed in powders up to 420°С. The endothermic peak at high temperatures is due to the dehydration process and decomposition of the cubic ZrO2 solid solution.
| Original language | English |
|---|---|
| Pages (from-to) | 750-755 |
| Number of pages | 6 |
| Journal | Inorganic Materials: Applied Research |
| Volume | 7 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Sep 2016 |
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Keywords
- dehydration
- endothermic reaction
- magnesia
- phase transformations
- zirconium dioxide
ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
Cite this
Effect of annealing on the structure and phase transformation in ZrO2–MgO ceramic powders. / Kanaki, A. V.; Buyakova, S. P.; Kulkov, S. N.
In: Inorganic Materials: Applied Research, Vol. 7, No. 5, 01.09.2016, p. 750-755.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of annealing on the structure and phase transformation in ZrO2–MgO ceramic powders
AU - Kanaki, A. V.
AU - Buyakova, S. P.
AU - Kulkov, S. N.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - The structure and phase composition of ZrO2–MgO powders with the MgO content from 9 to 43 mol % obtained by the plasma chemical method after annealing at 700–1400°С are studied. Differential scanning calorimetry and powder thermogravimetric analysis are carried out. It is found that, in the course of heating, the mass loss and the endothermic reactions energy increase with the increase in the MgO content. In the initial state, the powders containing more than 25 mol % of MgO are supersaturated solid solutions of cubic ZrO2. Water desorption processes and decomposition of residual nitrates are observed in powders up to 420°С. The endothermic peak at high temperatures is due to the dehydration process and decomposition of the cubic ZrO2 solid solution.
AB - The structure and phase composition of ZrO2–MgO powders with the MgO content from 9 to 43 mol % obtained by the plasma chemical method after annealing at 700–1400°С are studied. Differential scanning calorimetry and powder thermogravimetric analysis are carried out. It is found that, in the course of heating, the mass loss and the endothermic reactions energy increase with the increase in the MgO content. In the initial state, the powders containing more than 25 mol % of MgO are supersaturated solid solutions of cubic ZrO2. Water desorption processes and decomposition of residual nitrates are observed in powders up to 420°С. The endothermic peak at high temperatures is due to the dehydration process and decomposition of the cubic ZrO2 solid solution.
KW - dehydration
KW - endothermic reaction
KW - magnesia
KW - phase transformations
KW - zirconium dioxide
UR - http://www.scopus.com/inward/record.url?scp=84990879548&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84990879548&partnerID=8YFLogxK
U2 - 10.1134/S2075113316050099
DO - 10.1134/S2075113316050099
M3 - Article
AN - SCOPUS:84990879548
VL - 7
SP - 750
EP - 755
JO - Inorganic Materials: Applied Research
JF - Inorganic Materials: Applied Research
SN - 2075-1133
IS - 5
ER -