Phase stability and hot corrosion behavior of ZrO2-Ta2O5 compound in Na2SO4-V2O5 mixtures at elevated temperatures

被引：41

作者：

Habibi, M. H. ^{[1
]}

Yang, Shizhong ^{[2
]}

Guo, S. M. ^{[1
]}

机构：

[1] Louisiana State Univ, Dept Mech & Ind Engn, Baton Rouge, LA 70803 USA

[2] Southern Univ & A&M Coll, LONI Inst, Dept Comp Sci, Baton Rouge, LA 70813 USA

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 03期

基金：

美国国家科学基金会;

关键词：

Hot corrosion; Ta2O5; ZrO2; Thermal bather coating (TBC); THERMAL BARRIER COATINGS; TOTAL-ENERGY CALCULATIONS; ZIRCONIA; YTTRIA; DEGRADATION; CERIA; RESISTANCE; SYSTEMS; SODIUM;

D O I：

10.1016/j.ceramint.2013.08.062

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：

For thermal bather coating (TBC) applications, yttria stabilized zirconia (YSZ) is susceptible to hot corrosion. This paper examines the hot corrosion performance of ZrO2/Ta2O5 compounds. Different compositions of ZrO2-Ta2O5 samples in the presence of molten mixture of Na2SO4+V2O5 at 1100 degrees C were tested. The compositions were selected to form tetragonal and orthorhombic phases of zirconium-tantalum oxides. Results show that orthorhombic zirconium-tantalum oxide is more stable, both thermally and chemically in Na2SO4+V2O5 media at 1100 degrees C, and shows a better hot corrosion resistance than the tetragonal phase. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：4077 / 4083

页数：7

共 41 条

[1] Evaluation of hot corrosion behavior of plasma sprayed ceria and yttria stabilized zirconia thermal barrier coatings in the presence of Na2SO4+V2O5 molten salt [J].

Ahmadi-Pidani, Raheleh ;

Shoja-Razavi, Reza ;

Mozafarinia, Reza ;

Jamali, Hossein .

CERAMICS INTERNATIONAL, 2012, 38 (08) :6613-6620

[2]

Barin I., 1973, THERMOCHEMICAL PROPE

[3] Ta2O5-Y2O3-ZrO2 system: Experimental study and preliminary thermodynamic description [J].

Bhattacharya, Anup K. ;

Shklover, Valery ;

Steurer, Walter ;

Witz, Gregoire ;

Bossmann, Hans-peter ;

Fabrichnaya, Olga .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2011, 31 (03) :249-257

[4] Effect of 7YSZ on the long-term stability of YTaO4 doped ZrO2 system [J].

Bhattachaya, Anup ;

Shklover, Valery ;

Kunze, Karsten ;

Steurer, Walter .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2011, 31 (15) :2897-2901

[5] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[6] THERMAL-PROPERTIES OF CERIA AND YTTRIA PARTIALLY STABILIZED ZIRCONIA THERMAL BARRIER COATINGS [J].

BRANDON, JR ;

TAYLOR, R .

SURFACE & COATINGS TECHNOLOGY, 1989, 39 (1-3) :143-151

[7] Degradation of plasma-sprayed yttria-stabilized zirconia coatings via ingress of vanadium oxide [J].

Chen, Zun ;

Mabon, Jim ;

Wen, Jian-Guo ;

Trice, Rodney .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (09) :1647-1656

[8] Structure and thermal properties of heat treated plasma sprayed ceria yttria co-stabilized zirconia coatings [J].

Di Girolamo, Giovanni ;

Blasi, Caterina ;

Schioppa, Monica ;

Tapfer, Leander .

CERAMICS INTERNATIONAL, 2010, 36 (03) :961-968

[9] Corrosion of selected ceramic materials in hot gas environment [J].

Fritsch, Marco ;

Klemm, Hagen ;

Herrmann, Matthias ;

Schenk, Bjoern .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2006, 26 (16) :3557-3565

[10] V2O5, NB2O5 AND TA2O5 DOPED ZIRCONIA CERAMICS [J].

GRITZNER, G ;

PUCHNER, C .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1994, 13 (05) :387-394

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