稀土钽酸盐在热障涂层中的研究与应用
|
摘要
热障涂层(Thermal Barrier Coatings,TBCs)是推进超高速飞行器与先进航空发动机发展的关键技术。目前最常用的热障涂层材料是氧化钇稳定氧化锆(YSZ),但是由于其存在高温相变会产生体积差这一致命缺陷,已不能满足下一代发动机的发展需求。故而,开发新一代热障涂层已势在必行。经试验证明,采用固相法所制备的稀土钽酸盐致密块体具有更加优异的热物理性能和机械性能:极低的高温热导率(1.1～1.3W/(m·K),1000℃),相比YSZ系列热导率值下降了50%;更大的降温梯度(300～500℃);基于高温铁弹增韧机制的良好断裂韧性。此外,稀土钽酸盐作为非氧离子缺陷型热导化合物,是一种氧离子传输的绝缘体,能够有效阻止热氧化物(Thermal Growth Oxidies,TGO)层的生长,大大延长热障涂层的热循环使用寿命,有望成为新一代应用于超高速飞行器和航空发动机的热障涂层材料。
Thermal barrier coatings(TBCs) is the key technology for the hypersonic aircraft and the aero-engine. At present, yttria stalized zirconia(YSZ) is widely used as the thermal barrier coatings ceramic top-coatings. However, it cannot use for the next generation of engine in the future, owing to the volume difference caused by T–M phase transformation of ZrO_2. Obviously, it is imperative to find a kind of more advanced TBCs. The experiments have shown that the rare earth tantalate prepared by the solid-state reaction has more excellent thermophysical and mechanical properties, such as lower thermal conductivity(1.1–1.3 W/(m·K), 1000℃), higher temperature gradient(300–500℃) and better fracture toughness.Besides, the rare earth tantalate is transmitted at a much lower rate than YSZ through O_2– anions, which can effectively prevent the growth of thermal growth oxides(TGO). Considering the above advantages, the rare earth tantalate would be the great potential TBCs in the next generation of gas turbine.
Thermal barrier coatings(TBCs) is the key technology for the hypersonic aircraft and the aero-engine. At present, yttria stalized zirconia(YSZ) is widely used as the thermal barrier coatings ceramic top-coatings. However, it cannot use for the next generation of engine in the future, owing to the volume difference caused by T–M phase transformation of ZrO_2. Obviously, it is imperative to find a kind of more advanced TBCs. The experiments have shown that the rare earth tantalate prepared by the solid-state reaction has more excellent thermophysical and mechanical properties, such as lower thermal conductivity(1.1–1.3 W/(m·K), 1000℃), higher temperature gradient(300–500℃) and better fracture toughness.Besides, the rare earth tantalate is transmitted at a much lower rate than YSZ through O_2– anions, which can effectively prevent the growth of thermal growth oxides(TGO). Considering the above advantages, the rare earth tantalate would be the great potential TBCs in the next generation of gas turbine.
引文
[1]刘家富.燃气涡轮发动机制造技术的发展[J].先进制造与材料应用技术,1998(4):7-10.LIU Jiafu.Development of manufacturing technology for gas turbine engines[J].Advanced Manufacturing and Material Application Technology,1998(4):7-10.
[2]CARONP,KHANT.Evolution of Ni-based superalloys for single crystal gas turbine blade applications[J].Aerospace Science and Technology,1999,3(8):513-523.
[3]LEYENSC,SCHULZU,FRITSCHER K,et al.Contemporary materials issues for advanced EB-PVD thermal barrier coating systems[J].Zeitschriftfür Metallkunde,2001,92(7):762-772.
[4]PADTURE N P,GELL M,JORDANE H.The rmalbarrier coatings forga sturbine engine applications[J].Science,2002,296(5566):280-284.
[5]CLARKE D R,LEVI C G.Materials design for the next generation thermal barrier coatings[J].Annual Review of Materials Research,2003,33:383-417.
[6]CLARKE D R,PHILLPOT S R.Thermal barrier coating materials[J].Materials Today,2005,8(6):22-29.
[7]CLARKE D R,OECHSNER M,PADTURE N P.Thermal-barrier coatings for more efficient gas-turbine engines[J].MRSBulletin,2012,37(10):891-898.
[8]CLARKE D R.Materials selection guidelines for low thermal conductivity thermal barrier coatings[J].Surface and Coatings Technology,2003,163-164:67-74.
[9]FERGUS JW.Zirconia and pyrochlore oxides for thermal barrier coatings in gas turbine engines[J].Metallurgical and Materials Transactions E,2014,1(2):118-131.
[10]LI G R,XIE H,YANG G J,et al.Acomprehensive sintering mechanism for TBCsPart II:multiscale multipoint interconnectionenhanced initial kinetics[J].Journal of the American Ceramic Society,2017,100(9):4240-4251.
[11]CHEVALIER J,GREMILLARD L,VIRKAR A V,et al.The tetragonal-monoclinic transformation in zirconia:lessons learned and future trends[J].Journal of the American Ceramic Society,2009,92(9):1901-1920.
[12]LUGHIV,TOLPYGOVK,CLARKE D R.Microstructural aspects of the sintering of thermal barrier coatings[J].Materials Science and Engineering:A,2004,368(1/2):212-221.
[13]CAO X Q,VASSEN R,STOEVERD.Ceramic materials for the rmalbarrier coatings[J].Journal of the European Ceramic Society,2004,24(1):1-10.
[14]CHEN L,YANG G J.Epitaxial growth and cracking of highly tough 7YSZsplats by thermal spray technology[J].Journal of Advanced Ceramics,2018,7(1):17-29.
[15]LI G R,XIE H,YANG G J,et al.Acomprehensive sintering mechanism for TBCsPart I:an overall evolution with two-stage kinetics[J].Journal of the American Ceramic Society,2017,100(5):2176-2189.
[16]MUTASIMZ,BRENTNALLW.Thermal barrier coatings for industrial gas turbine applications:An industrial note[J].Journal of Thermal Spray Technology,1997,6(1):105-108.
[17]SUN LL,GUO H B,PENG H,et al.Phase stability and thermal conductivity of ytterbia and yttria co-doped zirconia[J].Progress in Natural Science:Materials International,2013,23(4):440-445.
[18]VASSEN R,CAO X Q,TIETZ F,et al.Zirconates as new materials for thermal barrier coatings[J].Journal of the American Ceramic Society,2000,83(8):2023-2028.
[19]ZHU D M,MILLER R A.Low conductivity and sintering-resistant thermal barrier coatings:US6812176[P].2004-11-02.
[20]LEHMANN H,PITZER D,PRACHT G,et al.Thermal conductivity and thermal expansion coefficients of the lanthanum rare-earth-element zirconate system[J].Journal of the American Ceramic Society,2003,86(8):1338-1344.
[21]冯晶.陶瓷热障涂层材料的力学及热学性质计算与设计[M].北京:科学出版社,2016.FENG Jing.Calculation and design of mechanical and thermal properties of ceramic thermal barrier coating materials[M].Beijing:Science Press,2016.
[22]CAO X Q,VASSEN R,FISCHERW,et al.Lanthanum-cerium oxide as a thermal barrier-coating material for high-temperature applications[J].Advanced Materials,2003,15(17):1438-1442.
[23]MA W,GONG S K,XU H B,et al.On improving the phase stability and thermal expansion coefficients of lanthanum cerium oxide solid solutions[J].Scripta Materialia,2006,54(8):1505-1508.
[24]陈琳,汪俊,冯晶.稀土钽酸盐陶瓷热障涂层的研究进展[J].中国材料进展,2017,36(12):938-949.CHEN Lin,WANG Jun,FENG Jing.Research progress of rareearth tantala teceramics as the rmalbarrier coatings[J].Materials China,2017,36(12):938-949.
[25]PERRIèRE L,BREGIROUX D,NAITALI B,et al.Microstructural dependence of the thermal and mechanical properties of monazite Ln PO4(Ln=La to Gd)[J].Journal of the European Ceramic Society,2007,27(10):3207-3213.
[26]DU A B,WAN C L,QUZ X,et al.Thermal conductivity of monazite-type REPO4(RE=La,Ce,Nd,Sm,Eu,Gd)[J].Journal of the American Ceramic Society,2009,92(11):2687-2692.
[27]WAN C L,QU Z X,HE Y,et al.Ultralow thermal conductivity in highly aniondefective aluminates[J].Physical Review Letters,2008,101(8):085901.
[28]TIAN Z L,ZHENG L Y,WANGJ M,et al.Theoretical and experimental determination of the major thermo-mechanical properties of RE2Si O5(RE=Tb,Dy,Ho,Er,Tm,Yb,Lu,and Y)for environmental and thermal barrier coating applications[J].Journal of the European Ceramic Society,2016,36(1):189-202.
[29]FRIEDRICH C,GADOW R,SCHIRMER T.Lanthanum hexaaluminate-a new material for atmospheric plasma spraying of advanced the rmalbarrier coatings[J].Journal of Spraying Technology,2001,10(4):592-598.
[30]PADTURE N P,KLEMENS P G.Low thermal conductivity in garnets[J].Journal of the American Ceramic Society,1997,80(4):1018-1020.
[31]ZHOU Y C,XIANG H M,FENG ZH.Theoretical investigation on mechanical and thermal properties of a promising thermal barrier material:Yb3Al5O12[J].Journal of Materials Science&Technology,2014,30(7):631-638.
[32]LIMARGA A M,SHIAN S,LECKIE R M,et al.Thermal conductivity of single-and multi-phase compositions in the Zr O2-Y2O3-Ta2O5 system[J].Journal of the European Ceramic Society,2014,34(12):3085-3094.
[33]SHIAN S,SARIN P,GURAK M,et al.The tetragonal-monoclinic,ferroelastic transformation in yttrium tantalate and effect of zirconia alloying[J].Acta Materialia,2014,69:196-202.
[34]FENG J,SHIAN S,XIAO B,et al.First-principles calculations of the hightemperature phase transformation in yttrium tantalate[J].Physical Review B,2014,90(9):094102.
[35]VOLOSHYNA O,BOIARYNTSEVAI,SPASSKY D,et al.Luminescence properties of the yttrium and gadolinium tantalo-niobates[J].Solid State Phenomena,2015,230:172-177.
[36]向东,刘波,顾牡,等.M′型和M型YTa O4电子结构和光学性质的理论研究[J].光学仪器,2008,30(4):18-23.XIANG Dong,LIU Bo,GU Mu,et al.Theoretical investigation on electionic structures and optical prosperities of M′and M type YTa O4[J].Optical Instruments,2008,30(4):18-23.
[37]李博,顾镇南,林建华,等.YTa O4:Gd,Eu体系光致发光中的能量传递[J].物理化学学报,1999,15(9):794-798.LI Bo,GU Zhennan,LIN Jianhua,et al.Energy transfer in the luminescence process of YTa O4:Gd,Eu[J].Acta Physico-Chimica Sinica,1999,15(9):794-798.
[38]TSUNEKAWA S,YAMAUCHI H,SASAKI K,et al.Paramagnetic anisotropies in RTa O4(R=Nd,Ho and Er)crystals[J].Journal of Alloys and Compounds,1996,245(1-8):89-93.
[39]WANG J,ZHOU Y,CHONG X Y,et al.Microstructure and thermal properties of a promising thermal coating:YTa O4[J].Ceramics International,2016,42(12):13876-13881.
[40]WANG J,ZHOU Y,FENG J.et al.Microstructure and thermal properties of RETa O4(RE=Nd,Eu,Gd,Dy,Er,Yb,Lu)as promising thermal barrier coating materials[J].Scripta Materialia,2017,126:24-28.
[41]ABE R,HIGASHI M,ZOU Z,et al.Photocatalytic water splitting into H2 and O2 over R3Ta O7 and R3Nb O7(R=Y,Yb,Gd,La):effect of crystal structure on photocatalytic activity[J].The Journal of Physical Chemistry B,2004,108(3):811-814.
[42]WAKESHIMA M,HINATSU Y.Magnetic properties and structural transitions of orthorhombic fluorite-related compounds Ln3MO7(Ln=rare earths,M=transition metals)[J].Journal of Solid State Chemistry,2010,183(11):2681-2688.
[43]ZHAO M,PAN W,WAN C L,et al.Defect engineering in development of low thermal conductivity materials:a review[J].Journal of the European Ceramic Society,2017,37(1):1-13.
[44]陈琳.稀土钽酸盐RETa3O7和RE3Ta O7陶瓷的制备与热学及力学性质的研究[D].昆明:昆明理工大学,2018.CHEN Lin.Preparation with thermal and mechanical properties of rare earth tantalate RETa3O7 and RE3Ta O7 ceramics[D].Kunming:Kunming University of Science and Technology,2018.
[45]EBISU S,MORITA H,NAGATA S.Influence of cubic crystal field on the magnetic susceptibility of defect-perovskite RTa3O9(R=rare earth)[J].Journal of Physics and Chemistry of Solids,2000,61(1):45-65.
[46]CHEN L,JIANG Y H,CHONG XY,et al.Synthesis and thermophysical properties of RETa3O9(RE=Ce,Nd,Sm,Eu,Gd,Dy,Er)as promising thermal barrier coatings[J].Journal of the American Ceramic Society,2018,101(3):1266-1278.
[47]CALLAWAY J,BAEYER H C.Effect of point imperfection on lattice thermal conductivity[J].Physics Review,1960,120(4):1149-1154.
[48]GURAK M,FLAMANT Q,LAVERSENNE L,et al.On the yttrium tantalate-zirconia phase diagram[J].Journal of the European Ceramic Society,2018,38(9):3317-3324.
[49]CHEN L,SONG P,FENGJ.Influence of Zr O2 alloying effect on the thermophysical properties of fluorite-type Eu3Ta O7 ceramics[J].Scripta Materialia,2018,152:117-121.
[50]WU P,HU M Y,CHONG X Y,et al.The glass-like thermal conductivity in Zr O2-Dy3Ta O7 ceramic for promising thermal barrier coating application[J].Applied Physics Letters,2018,112(13):131903.
[51]RENC,HEYD,WANGD R.Cyclic oxidation behavior and thermal barrier effect of YSZ-(Al2O3/YAG)double-layer TBCs prepared by the composite sol-gel method[J].Surface and Coatings Technology,2011,206(6):1461-1468.
[52]STATHOPOULOS V,SADYKOVV,PAVLOVA S,et al.Design of functionally graded multilayer thermal barrier coatings for gas turbine application[J].Surface and Coatings Technology,2016,295:20-28.
[53]YANG M,LI Y,LIAO Q J,et al.The interlaminar shear strength and tribological properties of PA6 composites filled with graphene oxide-treated carbon fiber[J].Surface and Interface Analysis,2017,49(8):755-758.
[54]WU P,CHONG XY,FENG J.Effect of Al3+doping on mechanical and thermal properties of Dy Ta O4 as promising thermal barrier coating application[J].Journal of the American Ceramic Society,2018,101(5):1818-1823.
[55]CHEN X G,ZHANG H S,LIU YX,et al.Thermal properties of RE2Al Ta O7(RE=Gd and Yb)oxides[J].Ceramics International,2018,44(9):10762-10765.
[56]WU P,HUM Y,CHEN L,et al.Investigation on microstructures and thermophysical properties of ferroelastic(Y1-xDyx)Ta O4ceramics[J].Materialia,2018,4:478-486.
[57]LUO Y Y,CHEN L,WU P,et al.Synthesis and thermophysics properties of ferroelastic Sm Nb1-XTaXO4 ceramics[J].Ceramics International,2018,44(12):13999-14006.
[2]CARONP,KHANT.Evolution of Ni-based superalloys for single crystal gas turbine blade applications[J].Aerospace Science and Technology,1999,3(8):513-523.
[3]LEYENSC,SCHULZU,FRITSCHER K,et al.Contemporary materials issues for advanced EB-PVD thermal barrier coating systems[J].Zeitschriftfür Metallkunde,2001,92(7):762-772.
[4]PADTURE N P,GELL M,JORDANE H.The rmalbarrier coatings forga sturbine engine applications[J].Science,2002,296(5566):280-284.
[5]CLARKE D R,LEVI C G.Materials design for the next generation thermal barrier coatings[J].Annual Review of Materials Research,2003,33:383-417.
[6]CLARKE D R,PHILLPOT S R.Thermal barrier coating materials[J].Materials Today,2005,8(6):22-29.
[7]CLARKE D R,OECHSNER M,PADTURE N P.Thermal-barrier coatings for more efficient gas-turbine engines[J].MRSBulletin,2012,37(10):891-898.
[8]CLARKE D R.Materials selection guidelines for low thermal conductivity thermal barrier coatings[J].Surface and Coatings Technology,2003,163-164:67-74.
[9]FERGUS JW.Zirconia and pyrochlore oxides for thermal barrier coatings in gas turbine engines[J].Metallurgical and Materials Transactions E,2014,1(2):118-131.
[10]LI G R,XIE H,YANG G J,et al.Acomprehensive sintering mechanism for TBCsPart II:multiscale multipoint interconnectionenhanced initial kinetics[J].Journal of the American Ceramic Society,2017,100(9):4240-4251.
[11]CHEVALIER J,GREMILLARD L,VIRKAR A V,et al.The tetragonal-monoclinic transformation in zirconia:lessons learned and future trends[J].Journal of the American Ceramic Society,2009,92(9):1901-1920.
[12]LUGHIV,TOLPYGOVK,CLARKE D R.Microstructural aspects of the sintering of thermal barrier coatings[J].Materials Science and Engineering:A,2004,368(1/2):212-221.
[13]CAO X Q,VASSEN R,STOEVERD.Ceramic materials for the rmalbarrier coatings[J].Journal of the European Ceramic Society,2004,24(1):1-10.
[14]CHEN L,YANG G J.Epitaxial growth and cracking of highly tough 7YSZsplats by thermal spray technology[J].Journal of Advanced Ceramics,2018,7(1):17-29.
[15]LI G R,XIE H,YANG G J,et al.Acomprehensive sintering mechanism for TBCsPart I:an overall evolution with two-stage kinetics[J].Journal of the American Ceramic Society,2017,100(5):2176-2189.
[16]MUTASIMZ,BRENTNALLW.Thermal barrier coatings for industrial gas turbine applications:An industrial note[J].Journal of Thermal Spray Technology,1997,6(1):105-108.
[17]SUN LL,GUO H B,PENG H,et al.Phase stability and thermal conductivity of ytterbia and yttria co-doped zirconia[J].Progress in Natural Science:Materials International,2013,23(4):440-445.
[18]VASSEN R,CAO X Q,TIETZ F,et al.Zirconates as new materials for thermal barrier coatings[J].Journal of the American Ceramic Society,2000,83(8):2023-2028.
[19]ZHU D M,MILLER R A.Low conductivity and sintering-resistant thermal barrier coatings:US6812176[P].2004-11-02.
[20]LEHMANN H,PITZER D,PRACHT G,et al.Thermal conductivity and thermal expansion coefficients of the lanthanum rare-earth-element zirconate system[J].Journal of the American Ceramic Society,2003,86(8):1338-1344.
[21]冯晶.陶瓷热障涂层材料的力学及热学性质计算与设计[M].北京:科学出版社,2016.FENG Jing.Calculation and design of mechanical and thermal properties of ceramic thermal barrier coating materials[M].Beijing:Science Press,2016.
[22]CAO X Q,VASSEN R,FISCHERW,et al.Lanthanum-cerium oxide as a thermal barrier-coating material for high-temperature applications[J].Advanced Materials,2003,15(17):1438-1442.
[23]MA W,GONG S K,XU H B,et al.On improving the phase stability and thermal expansion coefficients of lanthanum cerium oxide solid solutions[J].Scripta Materialia,2006,54(8):1505-1508.
[24]陈琳,汪俊,冯晶.稀土钽酸盐陶瓷热障涂层的研究进展[J].中国材料进展,2017,36(12):938-949.CHEN Lin,WANG Jun,FENG Jing.Research progress of rareearth tantala teceramics as the rmalbarrier coatings[J].Materials China,2017,36(12):938-949.
[25]PERRIèRE L,BREGIROUX D,NAITALI B,et al.Microstructural dependence of the thermal and mechanical properties of monazite Ln PO4(Ln=La to Gd)[J].Journal of the European Ceramic Society,2007,27(10):3207-3213.
[26]DU A B,WAN C L,QUZ X,et al.Thermal conductivity of monazite-type REPO4(RE=La,Ce,Nd,Sm,Eu,Gd)[J].Journal of the American Ceramic Society,2009,92(11):2687-2692.
[27]WAN C L,QU Z X,HE Y,et al.Ultralow thermal conductivity in highly aniondefective aluminates[J].Physical Review Letters,2008,101(8):085901.
[28]TIAN Z L,ZHENG L Y,WANGJ M,et al.Theoretical and experimental determination of the major thermo-mechanical properties of RE2Si O5(RE=Tb,Dy,Ho,Er,Tm,Yb,Lu,and Y)for environmental and thermal barrier coating applications[J].Journal of the European Ceramic Society,2016,36(1):189-202.
[29]FRIEDRICH C,GADOW R,SCHIRMER T.Lanthanum hexaaluminate-a new material for atmospheric plasma spraying of advanced the rmalbarrier coatings[J].Journal of Spraying Technology,2001,10(4):592-598.
[30]PADTURE N P,KLEMENS P G.Low thermal conductivity in garnets[J].Journal of the American Ceramic Society,1997,80(4):1018-1020.
[31]ZHOU Y C,XIANG H M,FENG ZH.Theoretical investigation on mechanical and thermal properties of a promising thermal barrier material:Yb3Al5O12[J].Journal of Materials Science&Technology,2014,30(7):631-638.
[32]LIMARGA A M,SHIAN S,LECKIE R M,et al.Thermal conductivity of single-and multi-phase compositions in the Zr O2-Y2O3-Ta2O5 system[J].Journal of the European Ceramic Society,2014,34(12):3085-3094.
[33]SHIAN S,SARIN P,GURAK M,et al.The tetragonal-monoclinic,ferroelastic transformation in yttrium tantalate and effect of zirconia alloying[J].Acta Materialia,2014,69:196-202.
[34]FENG J,SHIAN S,XIAO B,et al.First-principles calculations of the hightemperature phase transformation in yttrium tantalate[J].Physical Review B,2014,90(9):094102.
[35]VOLOSHYNA O,BOIARYNTSEVAI,SPASSKY D,et al.Luminescence properties of the yttrium and gadolinium tantalo-niobates[J].Solid State Phenomena,2015,230:172-177.
[36]向东,刘波,顾牡,等.M′型和M型YTa O4电子结构和光学性质的理论研究[J].光学仪器,2008,30(4):18-23.XIANG Dong,LIU Bo,GU Mu,et al.Theoretical investigation on electionic structures and optical prosperities of M′and M type YTa O4[J].Optical Instruments,2008,30(4):18-23.
[37]李博,顾镇南,林建华,等.YTa O4:Gd,Eu体系光致发光中的能量传递[J].物理化学学报,1999,15(9):794-798.LI Bo,GU Zhennan,LIN Jianhua,et al.Energy transfer in the luminescence process of YTa O4:Gd,Eu[J].Acta Physico-Chimica Sinica,1999,15(9):794-798.
[38]TSUNEKAWA S,YAMAUCHI H,SASAKI K,et al.Paramagnetic anisotropies in RTa O4(R=Nd,Ho and Er)crystals[J].Journal of Alloys and Compounds,1996,245(1-8):89-93.
[39]WANG J,ZHOU Y,CHONG X Y,et al.Microstructure and thermal properties of a promising thermal coating:YTa O4[J].Ceramics International,2016,42(12):13876-13881.
[40]WANG J,ZHOU Y,FENG J.et al.Microstructure and thermal properties of RETa O4(RE=Nd,Eu,Gd,Dy,Er,Yb,Lu)as promising thermal barrier coating materials[J].Scripta Materialia,2017,126:24-28.
[41]ABE R,HIGASHI M,ZOU Z,et al.Photocatalytic water splitting into H2 and O2 over R3Ta O7 and R3Nb O7(R=Y,Yb,Gd,La):effect of crystal structure on photocatalytic activity[J].The Journal of Physical Chemistry B,2004,108(3):811-814.
[42]WAKESHIMA M,HINATSU Y.Magnetic properties and structural transitions of orthorhombic fluorite-related compounds Ln3MO7(Ln=rare earths,M=transition metals)[J].Journal of Solid State Chemistry,2010,183(11):2681-2688.
[43]ZHAO M,PAN W,WAN C L,et al.Defect engineering in development of low thermal conductivity materials:a review[J].Journal of the European Ceramic Society,2017,37(1):1-13.
[44]陈琳.稀土钽酸盐RETa3O7和RE3Ta O7陶瓷的制备与热学及力学性质的研究[D].昆明:昆明理工大学,2018.CHEN Lin.Preparation with thermal and mechanical properties of rare earth tantalate RETa3O7 and RE3Ta O7 ceramics[D].Kunming:Kunming University of Science and Technology,2018.
[45]EBISU S,MORITA H,NAGATA S.Influence of cubic crystal field on the magnetic susceptibility of defect-perovskite RTa3O9(R=rare earth)[J].Journal of Physics and Chemistry of Solids,2000,61(1):45-65.
[46]CHEN L,JIANG Y H,CHONG XY,et al.Synthesis and thermophysical properties of RETa3O9(RE=Ce,Nd,Sm,Eu,Gd,Dy,Er)as promising thermal barrier coatings[J].Journal of the American Ceramic Society,2018,101(3):1266-1278.
[47]CALLAWAY J,BAEYER H C.Effect of point imperfection on lattice thermal conductivity[J].Physics Review,1960,120(4):1149-1154.
[48]GURAK M,FLAMANT Q,LAVERSENNE L,et al.On the yttrium tantalate-zirconia phase diagram[J].Journal of the European Ceramic Society,2018,38(9):3317-3324.
[49]CHEN L,SONG P,FENGJ.Influence of Zr O2 alloying effect on the thermophysical properties of fluorite-type Eu3Ta O7 ceramics[J].Scripta Materialia,2018,152:117-121.
[50]WU P,HU M Y,CHONG X Y,et al.The glass-like thermal conductivity in Zr O2-Dy3Ta O7 ceramic for promising thermal barrier coating application[J].Applied Physics Letters,2018,112(13):131903.
[51]RENC,HEYD,WANGD R.Cyclic oxidation behavior and thermal barrier effect of YSZ-(Al2O3/YAG)double-layer TBCs prepared by the composite sol-gel method[J].Surface and Coatings Technology,2011,206(6):1461-1468.
[52]STATHOPOULOS V,SADYKOVV,PAVLOVA S,et al.Design of functionally graded multilayer thermal barrier coatings for gas turbine application[J].Surface and Coatings Technology,2016,295:20-28.
[53]YANG M,LI Y,LIAO Q J,et al.The interlaminar shear strength and tribological properties of PA6 composites filled with graphene oxide-treated carbon fiber[J].Surface and Interface Analysis,2017,49(8):755-758.
[54]WU P,CHONG XY,FENG J.Effect of Al3+doping on mechanical and thermal properties of Dy Ta O4 as promising thermal barrier coating application[J].Journal of the American Ceramic Society,2018,101(5):1818-1823.
[55]CHEN X G,ZHANG H S,LIU YX,et al.Thermal properties of RE2Al Ta O7(RE=Gd and Yb)oxides[J].Ceramics International,2018,44(9):10762-10765.
[56]WU P,HUM Y,CHEN L,et al.Investigation on microstructures and thermophysical properties of ferroelastic(Y1-xDyx)Ta O4ceramics[J].Materialia,2018,4:478-486.
[57]LUO Y Y,CHEN L,WU P,et al.Synthesis and thermophysics properties of ferroelastic Sm Nb1-XTaXO4 ceramics[J].Ceramics International,2018,44(12):13999-14006.