TY - GEN
T1 - Preparation and properties of Sm2Zr2O7 ceramics for thermal barrier coatings by APS
AU - Sun, Xiankai
AU - Wang, Quansheng
AU - Liu, Yanbo
AU - Ning, Xianjin
AU - Wang, Can
PY - 2012
Y1 - 2012
N2 - Material of Sm2Zr2O7 composition powder was synthesized by coprecipitation method using Sm2O3 and ZrOCl 2·8H2O as raw materials, and applied as ceramic topcoats of thermal barrier coating (TBC) by atmospheric plasma spraying (APS). The ceramics powder was prepared with proper distribution of particle size about 30-70μm by spray-dried method. Phase analyses revealed that Sm 2Zr2O7 coatings keeping the single phase with pyrochlore structure before and after the thermal cycling test. The thermally grown oxide at the topcoat-bondcoat interface and the formation of transverse crack were the major factors that lead to the coating failure on thermal cycling.
AB - Material of Sm2Zr2O7 composition powder was synthesized by coprecipitation method using Sm2O3 and ZrOCl 2·8H2O as raw materials, and applied as ceramic topcoats of thermal barrier coating (TBC) by atmospheric plasma spraying (APS). The ceramics powder was prepared with proper distribution of particle size about 30-70μm by spray-dried method. Phase analyses revealed that Sm 2Zr2O7 coatings keeping the single phase with pyrochlore structure before and after the thermal cycling test. The thermally grown oxide at the topcoat-bondcoat interface and the formation of transverse crack were the major factors that lead to the coating failure on thermal cycling.
KW - Atmospheric plasma spraying
KW - Rare-earth zirconates
KW - Thermal barrier coating (TBC)
KW - Thermal shock resistance
UR - http://www.scopus.com/inward/record.url?scp=80155148431&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.354-355.478
DO - 10.4028/www.scientific.net/AMR.354-355.478
M3 - Conference contribution
AN - SCOPUS:80155148431
SN - 9783037852668
T3 - Advanced Materials Research
SP - 478
EP - 482
BT - Progress in Power and Electrical Engineering
T2 - 2011 International Conference on Energy, Environment and Sustainable Development, ICEESD 2011
Y2 - 21 October 2011 through 23 October 2011
ER -