Effects of Y2O3 addition on the phase evolution and thermophysical properties of lanthanum zirconate
Data(s) |
2009
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Resumo |
Lanthanum zirconate (La2Zr2O7, LZ) powders with the addition of various Y2O3 contents for potential thermal barrier coatings (TBCs) application were synthesized by solid-state reaction. The structure evolution, sintering-resistance and thermophysical properties of the synthesized powders and sintered ceramics were systematically studied. X-ray diffraction (XRD) results indicate that LZ containing 3-12 wt.% Y2O3 mainly keeps a pyrochlore-type structure, and two new phases of LaYO3 and Y0.18Zr0.82O1.91 are also detected. Raman spectra confirm that the higher the Y2O3 content, the easier is the formation of LaYO3. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Xu ZH;He LM;Zhong XH;Zhang JF;Chen XL;Ma HM;Cao XQ.Effects of Y2O3 addition on the phase evolution and thermophysical properties of lanthanum zirconate,JOURNAL OF ALLOYS AND COMPOUNDS ,2009,480(2):220-224 |
Palavras-Chave | #THERMAL BARRIER COATINGS #EB-PVD #CYCLING BEHAVIOR #CERAMICS |
Tipo |
期刊论文 |