Thermochemical calculations of the oxidation behavior of Nb2AlC MAX phase in ZrO2–matrix composites
Thermochemical calculations of the oxidation behavior of Nb2AlC MAX phase in ZrO2–matrix composites
复制标题
ZrO2基复合材料中Nb2AlC MAX相氧化行为的热化学计算
DOI:
10.1016/j.ceramint.2018.05.249
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发表时间:
2018
影响因子:
5.2
通讯作者:
P. Greil
中科院分区:
文献类型:
--
作者:
M. Stumpf;J. Biggemann;T. Fey;K. Kakimoto;P. Greil
The oxidation behavior of Y-TZP/Nb2AlC composite was explored by thermo-chemical phase equilibrium calculations and experimental oxidation studies at 1200 °C. Growth of a compact surface reaction layer requires migration of oxygen from the surface to the reaction front and a gradient of oxygen content is likely to develop. The results of phase equilibria calculations show that at low oxygen concentration preferential oxidation of Al favors thermal degradation of Nb2AlC which yields Al2O3and Nb-carbides. With increasing oxygen content various Nb-oxides are formed and finally a mixture of NbAlO4and Nb2O5is present after full oxidation of a Nb2AlC particle. Experimental measurements confirmed the formation of a compact oxidation reaction layer at 1200 °C composed mainly of NbAlO4and a co-doped (Nb,Y)-TZP matrix.
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影响因子:
1.3
作者:
V. Vykhodets;T. Kurennykh;A. G. Kesarev;M. V. Kuznetsov;V. V. Kondrat'ev;C. Hülsen;U. Koester
通讯作者:
U. Koester
影响因子:
3.9
作者:
Byung‐Kook Kim;S. Park;H. Hamaguchi
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3.2
作者:
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影响因子:
--
作者:
Khan, MS;Islam, MS;Bates, DR
通讯作者:
Bates, DR
影响因子:
2.5
作者:
A. I. Gusev;A. Rempel;A. Magerl
通讯作者:
A. Magerl