TY - JOUR
T1 - Comparison of thermal insulation capability between conventional and nanostructured plasma sprayed YSZ coating on Ni3Al substrates
AU - Chen, Dan
AU - Luo, Fa
AU - Lou, Xufei
AU - Qing, Yuchang
AU - Zhou, Wancheng
AU - Zhu, Dongmei
N1 - Publisher Copyright:
© 2017 Elsevier Ltd and Techna Group S.r.l.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Conventional and nanostructured yttria-stabilized zirconia(YSZ) as thermal barrier coatings were directly deposited on Ni3Al intermetallic compound substrates without bond coating by atmospheric plasma spraying. The adherence, thermal insulation capability, microstructure, porosity and sintering resistance of these two kinds of coatings were studied. For the thickness of 150 µm YSZ coating without bond coating, the temperature drop (∆T=98 ℃) of the nanostructured YSZ coating at 1200 ℃ increases by 50.8% compared with that of the conventional YSZ coating (∆T=65 ℃). It is shown that the nanostructured YSZ coating has higher thermal insulation capability than the conventional YSZ coating, which is mainly due to its special microstructure with more semi-molten particles (21.78±0.54%), higher porosity (8.81±0.35%) and better sintering resistance.
AB - Conventional and nanostructured yttria-stabilized zirconia(YSZ) as thermal barrier coatings were directly deposited on Ni3Al intermetallic compound substrates without bond coating by atmospheric plasma spraying. The adherence, thermal insulation capability, microstructure, porosity and sintering resistance of these two kinds of coatings were studied. For the thickness of 150 µm YSZ coating without bond coating, the temperature drop (∆T=98 ℃) of the nanostructured YSZ coating at 1200 ℃ increases by 50.8% compared with that of the conventional YSZ coating (∆T=65 ℃). It is shown that the nanostructured YSZ coating has higher thermal insulation capability than the conventional YSZ coating, which is mainly due to its special microstructure with more semi-molten particles (21.78±0.54%), higher porosity (8.81±0.35%) and better sintering resistance.
KW - NiAl substrates
KW - Plasma spraying
KW - Thermal barrier coating
KW - Thermal insulation capability
KW - Yttria-stabilized zirconia
UR - http://www.scopus.com/inward/record.url?scp=85009499876&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2016.12.076
DO - 10.1016/j.ceramint.2016.12.076
M3 - 文章
AN - SCOPUS:85009499876
SN - 0272-8842
VL - 43
SP - 4324
EP - 4329
JO - Ceramics International
JF - Ceramics International
IS - 5
ER -