Phase composition and stability of nanostructured 4.7 wt.% yttria-stabilized zirconia coatings deposited by atmospheric plasma spraying

2006 ◽  
Vol 200 (14-15) ◽  
pp. 4549-4556 ◽  
Author(s):  
Bo Liang ◽  
Chuanxian Ding ◽  
Hanlin Liao ◽  
Christian Coddet
Keyword(s):  
Phase Composition ◽  
Plasma Spraying ◽  
Atmospheric Plasma Spraying ◽  
Yttria Stabilized Zirconia ◽  
Atmospheric Plasma ◽  
Stabilized Zirconia

Effect of Substrate Concave Pattern on Splat Formation of Yttria-Stabilized Zirconia in Atmospheric Plasma Spraying

2009 ◽  
Vol 18 (4) ◽  
pp. 609-618 ◽  
Author(s):  
Kentaro Shinoda ◽  
Mehdi Raessi ◽  
Javad Mostaghimi ◽  
Toyonobu Yoshida ◽  
Hideyuki Murakami
Keyword(s):  
Plasma Spraying ◽  
Atmospheric Plasma Spraying ◽  
Yttria Stabilized Zirconia ◽  
Atmospheric Plasma ◽  
Stabilized Zirconia ◽  
Splat Formation

Atmospheric Plasma Spraying of Run-in Coatings for Twin-Screw Compressors

2000 ◽  
Author(s):  
Fr.-W. Bach ◽  
T. Duda ◽  
W. Unterberg ◽  
L.A. Josefiak
Keyword(s):  
Corrosion Resistance ◽  
Plasma Spraying ◽  
Atmospheric Plasma Spraying ◽  
Yttria Stabilized Zirconia ◽  
Thermal Spray Coatings ◽  
Atmospheric Plasma ◽  
Stabilized Zirconia ◽  
Spray Coatings ◽  
Twin Screw ◽  
Screw Rotors

Abstract This paper examines the potential of thermal spray coatings for manufacturing and repairing twin-screw rotors. The coatings evaluated were produced by atmospheric plasma spraying (APS). Tests show that 7% yttria stabilized zirconia (ZrO27Y2O3) coatings provide sufficient run-in characteristics and corrosion resistance. The coatings, along with a NiCrAl bond coat, were applied to various substrate materials.

Constrained and Non-Constrained Sintering of Plasma-Sprayed Zirconia Based Electrolytes for SOFCs

2010 ◽  
Vol 65 ◽  
pp. 263-268 ◽  
Author(s):  
Claudia Christenn ◽  
Syed Asif Ansar
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Atmospheric Plasma Spraying ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Atmospheric Plasma ◽  
Oxide Fuel ◽  
Microstructure Development ◽  
Stabilized Zirconia ◽  
Free Standing ◽  
Plasma Sprayed

Electrolyte layers for solid oxide fuel cells (SOFCs) consisting typically of yttria-stabilized zirconia were prepared using atmospheric plasma spraying in a first step and sintered in a second one. The influence of particle size on sintering kinetics and microstructure development was analyzed by comparison of nanostructured and conventional YSZ layers. Sintering of free-standing coatings differ significantly from that of coatings on substrates.

scholarly journals Effect of La2O3 on Microstructure and Thermal Conductivity of La2O3-Doped YSZ Coatings

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2966 ◽  
Author(s):  
Xiaojie Guo ◽  
Chucheng Lin ◽  
Jimei Zhang ◽  
Ziwei Liu ◽  
Caifen Jiang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Barrier Coatings ◽  
Lattice Parameter ◽  
Atmospheric Plasma Spraying ◽  
Yttria Stabilized Zirconia ◽  
Atmospheric Plasma ◽  
Thermal Barrier ◽  
Stabilized Zirconia ◽  
Barrier Coatings ◽  
Co Doped

Enhancing the properties of thermal barrier coatings (TBCs) by doping with rare earth elements has been a hot topic for a while. La2O3 and Y2O3 co-doped ZrO2 (La-YSZ) TBCs and yttria-stabilized zirconia (YSZ) TBCs were deposited by atmospheric plasma spraying (APS), and the comprehensive effects of La3+ on the microstructure and property were investigated. The thermal conductivity and microstructure were investigated and were compared with YSZ. The recrystallized fraction components of all TBCs were quantified. It is clearly found that the component of “recrystallized” and “deformed” grains for La-YSZ TBCs is much higher than that for YSZ TBCs. This could be due to La3+ doping enlarging the lattice parameter of YSZ and thus increasing the melting index, which in turns leads to the smaller grain size of La-YSZ TBCs. As a result, the thermal conductivities of La-YSZ TBCs were distinctly lower than those of YSZ TBCs.

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