Effects of oxygen ion irradiation on PMN-PT ferroelectric materials for space applications

Lead magnesium niobate-lead titanate (PMN-PT) is an important and high performance piezoelectric and pyroelectric relaxor material having wide range of applications in infrared sensor devices. Present work studies the fabrication and dielectric characteristics of PMN-PT in the bulk form. The PMN-PT bulk material was prepared in sol-gel method and subsequently irradiated with heavy ion oxygen. The materials were analyzed and determined that the relaxorferroelectric material indicated changes in its dielectric constant and pyroelectric coefficient after irradiation. Due to the radiation fluent of 1×1016 ions/cm2, the dielectric constant of the material increased uniformly, while its pyroelectric coefficient showed a sharp increased to the value of 5×10-9 μC/cm2 °C with increase in temperature. Its dielectric constants showed increase in values of 527 μC/cm2 °C at 50°C, 635 μC/cm2 °C at 60°C and 748 μC/cm2 °C at 70°C. Properties such as the material impedance, admittance and modulus were investigated for changes in properties which became evident after irradiation.

[1]  Marko Hrovat,et al.  The Effect of Poling on the Properties of 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 Ceramics , 2011 .

[2]  C. Chen,et al.  Effects of stress and electric field on the electromechanical properties of Pb(Mg1∕3Nb2∕3)O3–0.32PbTiO3 single crystals , 2005 .

[3]  Ahmad Safari,et al.  Effect of Composition on the Electromechanical Properties of (1‐x)Pb(Mg1/3Nb2/3)O3−XPbTiO3 Ceramics , 2005 .

[4]  D. Lesueur,et al.  Damage creation via electronic excitations in metallic targets part II : A theoretical model , 1993 .

[5]  K. Uchino,et al.  Recent applications of PMN-based electrostrictors , 1983 .

[6]  T. Shrout,et al.  Preparation of lead-based ferroelectric relaxors for capacitors , 1987 .

[7]  M. Hrovat,et al.  Influence of the substrate on the phase composition and electrical properties of 0.65PMN–0.35PT thick films , 2010 .

[8]  Harald W. Weber,et al.  Phase State and Structure of Ferroelectric Ceramics under Irradiation , 1997 .

[9]  Seung-Eek Park,et al.  Chemical Heterogeneity in PMN–35PT Ceramics and Effects on Dielectric and Piezoelectric Properties , 2004 .

[10]  Marina Santo Zarnik,et al.  Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN-PT) Material for Actuator Applications , 2011 .

[11]  R. Kubo.  Statistical-Mechanical Theory of Irreversible Processes : I. General Theory and Simple Applications to Magnetic and Conduction Problems , 1957 .

[12]  V. Bhat,et al.  Radiation resistance of PFN and PMN–PT relaxor ferroelectrics , 2003 .

[13]  Barbara Malič,et al.  Size-driven relaxation and polar states inPbMg1∕3Nb2∕3O3-based system , 2005 .

[14]  Harald W. Weber,et al.  Dielectric properties of reactor irradiated ferroelectric thin films , 2001 .

[15]  Rui Zhang,et al.  Elastic, piezoelectric, and dielectric properties of multidomain 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 single crystals , 2001 .

[16]  Szenes.  General features of latent track formation in magnetic insulators irradiated with swift heavy ions. , 1995, Physical review. B, Condensed matter.

[17]  Bernhard Roling,et al.  What do electrical conductivity and electrical modulus spectra tell us about the mechanisms of ion transport processes in melts, glasses, and crystals? , 1999 .

[18]  Zhang,et al.  Giant electrostriction and relaxor ferroelectric behavior in electron-irradiated poly(vinylidene fluoride-trifluoroethylene) copolymer , 1998, Science.

[19]  Haiqing Xu,et al.  Effect of composition and poling field on the properties and ferroelectric phase-stability of Pb(Mg1/3Nb2/3)O3–PbTiO3 crystals , 2002 .

[20]  M. Kosec,et al.  The influence of thermal stresses on the phase composition of 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 thick films , 2011 .

[21]  Janez Holc,et al.  Processing by mechanosynthesis and properties of piezoelectric Pb(Mg1/3Nb2/3)O3–PbTiO3 with different compositions , 2006 .

[22]  Masaru Yokosuka,et al.  Electrical and electromechanical properties of hot-pressed Pb(Fe1/2Nb1/2)O3 ferroelectric ceramics , 1993 .

[23]  Janez Holc,et al.  Size effect in morphotropic phase boundary Pb(Mg1∕3Nb2∕3)O3–PbTiO3 , 2007 .