Maryland's Defense Patent Database

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Low conductivity and high toughness tetragonal phase structured ceramic thermal barrier coatings

Patent image
CCDC ARL

A composition for thermal barrier coatings exhibiting improved thermal conductivity and toughness is provided. The composition is comprised of a base majority oxide, a first dopant oxide, at least one small rare earth oxide, at least one large rare earth oxide and at least one toughening oxide. Compared to traditional thermal barrier coatings, a composition of the present invention provides approximately twice the toughness one-third to one-half the thermal conductivity.

Inventors: 
Zhu, Dongming; Miller, Robert A.
Patent Number: 
Technical domain: 
Materials and Coatings
FIle Date: 
2006-08-28
Grant Date: 
2010-04-20
Grant time: 
1,331 days
Grant time percentile rank: 
24
Claim count percentile rank: 
4
Citations percentile rank: 
2
'Cited by' percentile rank: 
1
Assignee: 
US ARMY