TY - JOUR
T1 - The thermal cycling behavior of Lanthanum-Cerium Oxide thermal barrier coating prepared by EB-PVD
AU - Ma, Wen
AU - Gong, Shengkai
AU - Xu, Huibin
AU - Cao, Xueqiang
PY - 2006/4/27
Y1 - 2006/4/27
N2 - Bulk material and coatings of Lanthanum-Cerium Oxide (La2Ce2O7) with a fluorite structure were studied as a candidate material for thermal barrier coating (TBC). It has been showed that such material has the properties of low thermal conductivity about four times lower than YSZ, the difference in the thermal expansion coefficient between La2Ce2O7 and bond coat is smaller than that of YSZ in TBC systems, high phase stability between room temperature and 1673 K, about 300 K higher than that of the YSZ. The coating prepared by electron beam physical vapor deposition (EB-PVD) showed that it has good thermal cycling behavior, implying that such material can be a promising thermal barrier coating material. The deviation of coating composition from ingot can be overcome by the addition of excess La2O3 during ingot preparation and/or by adjusting the process parameters.
AB - Bulk material and coatings of Lanthanum-Cerium Oxide (La2Ce2O7) with a fluorite structure were studied as a candidate material for thermal barrier coating (TBC). It has been showed that such material has the properties of low thermal conductivity about four times lower than YSZ, the difference in the thermal expansion coefficient between La2Ce2O7 and bond coat is smaller than that of YSZ in TBC systems, high phase stability between room temperature and 1673 K, about 300 K higher than that of the YSZ. The coating prepared by electron beam physical vapor deposition (EB-PVD) showed that it has good thermal cycling behavior, implying that such material can be a promising thermal barrier coating material. The deviation of coating composition from ingot can be overcome by the addition of excess La2O3 during ingot preparation and/or by adjusting the process parameters.
KW - Electron beam physical vapor deposition
KW - Lanthanum Cerium Oxide
KW - Thermal barrier coatings
KW - Thermal cyclic oxidation
UR - https://www.scopus.com/pages/publications/33644967359
U2 - 10.1016/j.surfcoat.2005.05.033
DO - 10.1016/j.surfcoat.2005.05.033
M3 - 文章
AN - SCOPUS:33644967359
SN - 0257-8972
VL - 200
SP - 5113
EP - 5118
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
IS - 16-17
ER -