CeO2掺杂Pb0.94Sr0.06(Ni1/2W1/2)0.02(Mn1/3Nb2/3)0.07(Zr0.51Ti0.49)O3(PNW-PMN-PZT)陶瓷采用传统固相烧结法制备.借助X-射线衍射(XRD)、扫描电子显微镜(SEM)、X-射线能谱分析(EDAX)及密度、硬度和弯曲强度研究了烧结温度对陶瓷结构和机械性能的影响.研究发现,烧结温度的提高可使三方-四方相变、晶体四方度和晶粒尺寸增大,而使晶粒表面的残余应变减小.EDAX结果表明,材料组成和结构的不均匀性随烧结温度的提高而加剧,过高的烧结温度可导致Ni、Ce元素在晶界严重偏析积聚.1000℃烧结的陶瓷具有最佳的力学性能,这与合适烧结温度对材料晶粒尺寸、残余应变、组成和结构的均匀性以及气孔率的影响有关.
参考文献
| [1] | Yoo J.;Yoon K.;Hwang S.;Suh S.;Kim J.;Yoo C.;Lee Y. .Microstructural, electrical properties and temperature stability of resonant frequency in Pb(Ni1/2W1/2)O-3-Pb(Mn1/3Nb2/3)O-3-Pb(Zr, Ti)O-3 ceramics for high-power piezoelectric transformer[J].Japanese journal of applied physics,2001(5A):3256-3259. |
| [2] | Juhyun Yoo;Kwanghee Yoon;Sangmo Hwang;Sungjae Suh;Jongsun Kim;Chungsik Yoo .Electrical characteristics of high power piezoelectric transformer for 28 W fluorescent lamp[J].Sensors and Actuators, A. Physical,2001(1/2):132-137. |
| [3] | 路朋献,王改民,马秋花,许德合,朱满康,侯永改,邹文俊,栗政新.BiFeO3对0.02PNW-0.07PMnN-0.91PZT低温烧结陶瓷微观结构和压电性能的影响[J].中国陶瓷,2006(06):18-20. |
| [4] | Beom H G;Incheon;Jeong K M et al.Crack growthin ferroelectric ceramics under electric loading[J].Acta Mechanica,2005,177:43-60. |
| [5] | 穆柏春,孙旭东.稀土对Al2O3陶瓷烧结温度、显微组织和力学性能的影响[J].中国稀土学报,2002(z2):104-107. |
| [6] | 王玉春,丘泰,沈春英.添加Y2O3的ZrO2-Al2O3复相陶瓷力学性能的研究[J].中国稀土学报,2003(02):174-178. |
| [7] | SUN Qingchi,LU Cuimin,ZHOU Hua.Effects of CeO2 doping on the structure and properties of PSN-PZN-PMS-PZT piezoelectric ceramics[J].稀有金属（英文版）,2005(03):235-239. |
| [8] | Jin D.;Sun CQ.;Hing P. .Growth dynamics and electric properties of PbTi0.1Zr0.9O3 ceramics doped with cerium oxide[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2000(6):744-752. |
| [9] | Srimaungsong P;Udomkan N;Pdungsap L;Winotai P .Effect of CeO2 on sintering temperature and piezoelectric properties PZT (Zr : Ti=52 : 48) ceramics[J].International Journal of Modern Physics, B. Condensed Matter Physics, Statistical Physics, Applied Physics,2005(10):1757-1769. |
| [10] | Fan H Q;Park G T;Choi;J J Ryu J Kim H E .Preparation and Improvement in the Electrical Properties of Lead-Zinc-Niobate-based Ceramics by Thermal Treatments[J].Journal of Materials Research,2002,17(01):180-185. |
| [11] | 苗明清,傅正义,张金咏,龚伦军.TiB2/FeMo陶瓷的显微结构与力学性能[J].无机材料学报,2005(02):499-502. |
| [12] | 马伟民,修稚萌,毕孝国,闻雷,孙旭东.Al2O3/ZrO2（Y2O3）复合材料断裂过程中的相变及力学性能[J].金属学报,2005(01):93-98. |
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