Materials science - Thermal barrier coatings for gas-turbine engine applications

被引:3885
作者
Padture, NP [1 ]
Gell, M
Jordan, EH
机构
[1] Univ Connecticut, Dept Met & Mat Engn, Storrs, CT 06269 USA
[2] Univ Connecticut, Inst Mat Sci, Dept Mech Engn, Storrs, CT 06269 USA
关键词
D O I
10.1126/science.1068609
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Hundreds of different types of coatings are used to protect a variety of structural engineering materials from corrosion, wear, and erosion, and to provide Lubrication and thermal insulation. Of all these, thermal barrier coatings (TBCs) have the most complex structure and must operate in the most demanding high-temperature environment of aircraft and Industrial gas-turbine engines. TBCs, which comprise metal and ceramic multilayers, insulate turbine and combustor engine components from the hot gas stream, and improve the durability and energy efficiency of these engines. Improvements in TBCs will require a better understanding of the complex changes In their structure and properties that occur under operating conditions that lead to their failure. The structure, properties, and failure mechanisms of TBCs are herein reviewed, together with a discussion of current Limitations and future opportunities.
引用
收藏
页码:280 / 284
页数:5
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