Interplay of the phase and the chemical composition of the powder feedstock on the properties of porous 8YSZ thermal barrier coatings

被引：14

作者：

Sharma, Atin ^{[1
]}

Witz, Gregoire ^{[2
]}

Howell, Philip C. ^{[3
]}

Hitchman, Neil ^{[1
]}

机构：

[1] Siemens Energy Inc, 5101 Westinghouse Blvd, Charlotte, NC 28273 USA

[2] Siemens Energy AG, Freilagerstr 40, CH-8047 Zurich, Switzerland

[3] Siemens AG Corp Technol, Otto Hahn Ring 6, D-81739 Munich, Germany

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2021年 / 41卷 / 06期

关键词：

Yttria stabilized zirconia ceramic; Chemical composition; Phase transformation; Powder feedstock; Thermal barrier coatings; SINTERING KINETICS; CONSTANT RATES; ZIRCONIA; CONDUCTIVITY; PURITY; DURABILITY; MECHANISM; ALUMINA;

D O I：

10.1016/j.jeurceramsoc.2020.10.062

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Some chemical impurities enhance sintering kinetics of ceramic Thermal Barrier Coatings (TBCs) which can cause their premature failure during operation in gas turbine engine by causing reduction in coating?s strain compliance as well as faster bond-coat oxidation due to increased thermal conductivity. Certain chemical impurities are also believed to suppress resistance to tetragonal to monoclinic phase transformation in 8YSZ, which can also be an important factor regarding TBC?s performance. Most of the impurities and some of the monoclinic phase present in the powder feedstocks can survive into the as-sprayed coating. Therefore, there is a general trend towards OEMs requiring the lowest amounts of chemical impurities and the lowest amounts of monoclinic phase in the powder feedstocks. This paper presents a comprehensive investigation aimed at understanding the role and the relative importance of the chemical and phase purities of the powder feedstock for the properties and performance of thick 8YSZ TBCs.

引用

页码：3706 / 3716

页数：11

共 36 条

[1] Ceramic Top Coats of Plasma-Sprayed Thermal Barrier Coatings: Materials, Processes, and Properties [J].

Bakan, Emine ;

Vassen, Robert .

JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2017, 26 (06) :992-1010

[2] MICROSTRUCTURAL ANALYSIS OF SINTERED HIGH-CONDUCTIVITY ZIRCONIA WITH AL2O3 ADDITIONS [J].

BUTLER, EP ;

DRENNAN, J .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1982, 65 (10) :474-478

[3] Ceramic materials for thermal barrier coatings [J].

Cao, XQ ;

Vassen, R ;

Stoever, D .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (01) :1-10

[4] The Tetragonal-Monoclinic Transformation in Zirconia: Lessons Learned and Future Trends [J].

Chevalier, Jerome ;

Gremillard, Laurent ;

Virkar, Anil V. ;

Clarke, David R. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (09) :1901-1920

[5] Effect of sintering on mechanical properties of plasma-sprayed zirconia-based thermal barrier coatings [J].

Choi, SR ;

Zhu, DM ;

Miller, RA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2005, 88 (10) :2859-2867

[6] Thermal-barrier coatings for more efficient gas-turbine engines [J].

Clarke, David R. ;

Oechsner, Matthias ;

Padture, Nitin P. .

MRS BULLETIN, 2012, 37 (10) :891-902

[7] MECHANISMS OF DEGRADATION AND FAILURE IN A PLASMA-DEPOSITED THERMAL BARRIER COATING [J].

DEMASIMARCIN, JT ;

SHEFFLER, KD ;

BOSE, S .

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 1990, 112 (04) :521-526

[8]

Doesburg Jacobus, 2007, patent US, Patent No. 9975812

[9]

Eriksson R., HIGH TEMPERATURE DEG

[10] Factors affecting the microstructural stability and durability of thermal barrier coatings fabricated by air plasma spraying [J].

Helminiak, M. A. ;

Yanar, N. M. ;

Pettit, F. S. ;

Taylor, T. A. ;

Meier, G. H. .

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2012, 63 (10) :929-939

← 1 2 3 4 →