采用小样品力学性能试验方法(Modified Small Punch Tests,简称MSP)对Pb(Zr,Ti)O3陶瓷(PZT)实施了不同大小应力下的循环疲劳实验,循环应力越大,样品的残余强度和压电常数衰减越快,这是由应力循环过程中大量微裂纹的产生和扩展所致.通过最大强度值与疲劳寿命的对应关系求得100 Hz循环疲劳下该样品的裂纹扩展指数n为395,由此推测了PZT陶瓷样品的使用寿命,在循环应力的最大值不超过79.1 MPa的条件下,该样品的连续使用寿命可达5年以上.
参考文献
| [1] | Newnham R E,Xu Q C,Kumar S,et al.Smart ceramics.Ferroelectrics,1990,102(117):259-266. |
| [2] | Duiker H M,Beale P D,Scott J E et al.Fatigue and switching in ferroelectric memories-theory and experiment,Journal of Applied Physics,1990,68(11):5783-5791. |
| [3] | Jiang Q Y,Cross L E.effects of porosity on electric fatigue behavior in PLZT and PZT ferroelectric ceramics,Journal of Materials Science,1993,28(16):4536-4543. |
| [4] | Lee K Y,Ludema K C.Fatigue wear mechanism of alumina,simulated by synchronized biaxial repeated indentations.Wear,1997,205(1/2):200-205. |
| [5] | Alfredsson B,Olsson M.Inclined standing contact fatigue.Fatigue & Fracture of Engineering Materials & Structures.2003,26(7):589-502. |
| [6] | Song Y S,Park I,Jang I W,et al.In vitro Hertzian Fatigue Properties of Glass Infiltrated Ceramic Composites for Dental Crowns.6th International Symposium on Eco-Materials Processing and Design,Jinju,South Korea,2005. |
| [7] | Fett T,Ernst E,Rizzi G.et al.Sphere contact fatigue of a coarse-grained Al2O3 ceramic.Fatigue & Fracture of Engineering Materials & Structures,2006,29(11):876-886. |
| [8] | Li J F,Wang S A,Wakabayashi K,et al.Properties of modified lead zirconate titanate ceramics prepared at low temperature (800℃) by hot isostatic pressing.Journal of the American Ceramic Society.2000,83(4):955-957. |
| [9] | Li J F,Pan W,Sato F,et al.Mechanical properties of polycrystalline Ti3SiC2 at ambient and elevated temperatures.Acta Materialia,2001,49(6):937-945. |
| [10] | Wang G,Jiang W,Bai G Z,et al.Effect of additions of oxide on microstructure and BDTT of MoSi2/oxide composites.Composite Materials Ⅲ,2003,249:91-95. |
| [11] | Xiong Z,Jiang W,Shi Y,et al.Evaluation of high-temperature strength of Mo/PSZ composites by modified small punch tests.Materials Transactions,2005,46(3):631-636. |
| [12] | Jiang W,Bai G Z,Wang G,et al.High temperature strength of Mo/PSZ composites as evaluated by MSP test (Ⅱ).Journal of Inorganic Materials,2002,17(5):1034-1040. |
| [13] | Jiang W,Li J F.Compositional dependence of thermal and mechanical properties for sintered Mo/PSZ composites.Acta Metallurgica Sinica,2002,38(4):438-442. |
| [14] | Jiang W,Wang G,Wu L B,et al.High temperature strength of Mo/PSZ composities as evaluated by MSP test (Ⅰ).Journal of Inorganic Materials,2002,17(4):827-832. |
| [15] | Li J F,Kawai M,Kikuchi K,et al.Strength proof evaluation of diffusion-jointed W/Ta interfaces by small punch test,Journal of Nuclear Materials,2003,321 (2/3):129-134. |
| [16] | Li J F,Takagi K,Terakubo N,et al.Electrical and mechanical properties of piezoelectric ceramic/metal composites in the Pb(Zr,Ti)O3/Pt system.Applied Physics Letters,2001,79(15):2441-2443. |
| [17] | Zhang H L,Li J F,Zhang B P.Fabrication and evaluation of PZT/Ag composites and functionally graded piezoelectric actuators.Journal of Electroceramics,2006,16(4):413-417. |
| [18] | Zhang H L,Li J F,Zhang B P,et al.Enhanced mechanical properties in Ag-particle-dispersed PZT piezoelectric composites for actuator applications.Materials Science and Engineering A,2008,498(1/2):272-277. |
| [19] | Evans A.Fatigue in ceramics.International Journal of Fracture,1980,16(6):485-498. |
| [20] | Wang N,Xie L,Song W,et al.Residual Strength Degradation Model for Low-Alloy Steel in High Cycle Fatigue Load.2nd International Conference on Advances in Product Development and Reliability,Shenyang,China,2010. |
| [21] | Wang H,Wereszczak A A.Effects of electric field and biaxial flexure on the failure of poled Lead zirconate titanate.IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control,2008,55(12):2559-2570. |
| [22] | Liu S Y,Chen I W.Fatigue of yttria-stabilized zirconia.1,fatigue damage,fracture origins,and lifetime prediction.Journal of the American Ceramic Society,1991,74(6):1197-1205. |
| [23] | Liu S Y,Chen I W.Fatigue of yitria-stabilized zirconia.2.crack-propagation,fatigue striations,and short-crack behavior.Journal of the American Ceramic Society,1991,74(6):1206-1216. |
| [24] | Hill M D,White G S,Hwang C S,et al.Cyclic damage in lead zirconate titanate.Journal of the American Ceramic Society,1996,79(7):1915-1920. |
| [25] | Becher P F.Microstructural design of toughened ceramics.Journal of the American Ceramic Society,1991,74(2):255-269. |
| [26] | Brennan C.Model of ferroelectric fatigue due to defect/domain interactions.Ferroelectrics,1993,150(1):199-208. |
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