Skip to main content

Effect of Nb Dopant on the Oxidation Behavior of Zr2[Al(Si)]4C5 at 1000–1300°C

Buy Article:

$51.00 plus tax (Refund Policy)


Nb-doped Zr2[Al(Si)]4C5 solid solutions were prepared by in situ hot pressing method and their high-temperature oxidation behavior at 1000°–1300°C were investigated. The oxidation resistance of [Zr0.9(Nb0.1)]2[Al(Si)]4C5 solid solutions is improved remarkably compared with Zr2[Al(Si)]4C5 without dopant. The improved oxidation resistance is due to the formation of a more protective oxide scale consisting of (Zr,Nb)O2, Nb2Zr6O17, Al2O3, and mullite, in which (Zr,Nb)O2 solid solution is more effective than ZrO2 in depressing the inward diffusion of oxygen. In addition, the decrease of cracks in the oxide scale above 1100°C in Nb-doped sample is also beneficial to the improved oxidation resistance.

Document Type: Research Article


Affiliations: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Publication date: June 1, 2011

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more