Nonlinear behavior of Tb4O7-modified ZnO-Pr6O11-based ceramics with high breakdown field

Levinson, 1986, Zinc oxide varistor-a review, Am. Ceram. Soc. Bull., 65, 639 Gupta, 1990, Application of zinc oxide varistor, J. Am. Ceram. Soc., 73, 1817, 10.1111/j.1151-2916.1990.tb05232.x Lee, 1992, Phase identification and electrical properties in ZnO-glass varistors, J. Am. Ceram. Soc., 75, 1636, 10.1111/j.1151-2916.1992.tb04236.x Mukae, 1987, Zinc oxide varistors with praseodymium oxide, Am. Ceram. Bull., 66, 1329 Mukae, 1988, Zinc oxide-praseodymium oxide elements for surge arresters, IEEE Trans. Power Delivery, 3, 591, 10.1109/61.4296 Alles, 1993, Compositional effect on the liquid-phase sintering of praseodymium oxides-based ZnO varistors, J. Am. Ceram. Soc., 76, 2098, 10.1111/j.1151-2916.1993.tb08339.x Lee, 1996, Microstructure and crystal phases of praseodymium in zinc oxides varistor ceramics, J. Am. Ceram. Soc., 79, 23794, 10.1111/j.1151-2916.1996.tb08986.x Nahm, 2000, Microstructure and varistor properties of ZnO-Pr6O11-CoO-Nd2O3 based cramics, J. Mater. Sci. Lett., 19, 271, 10.1023/A:1006781823837 Nahm, 2001, The nonlinear properties and stability of ZnO-Pr6O11-CoO-Cr2O3-Er2O3 ceramic varistors, Mater. Lett., 47, 182, 10.1016/S0167-577X(00)00262-7 Nahm, 2003, Microstructure and electrical properties of Y2O3 doped ZnO-Pr6O11-based varistor, Mater. Lett., 57, 1317, 10.1016/S0167-577X(02)00979-5 Nahm, 2005, Microstructure and nonlinear electrical properties of ZnO-Pr6O11-CoO-Cr2O3-La2O3-based varistors, J. Mater. Sci. Lett., 40, 6307, 10.1007/s10853-005-4567-y Nahm, 2006, Microstructure and non-ohmic properties of ZPCCT-based ceramics, J. Mater. Sci. Lett., 41, 8382, 10.1007/s10853-006-0775-3 Feng, 2010, Effect of TiO2 doping on microstructure and electrical properties of ZnO-Pr6O11-based varistor ceramics, J. Alloy. Compd., 497, 304, 10.1016/j.jallcom.2010.03.047 Peng, 2010, Influence of Fe2O3 doping on microstructure and electrical properties of ZnO-Pr6O11-based varistor ceramic materials, J. Alloys Compd., 508, 494, 10.1016/j.jallcom.2010.08.100 Nahm, 2012, Sintering effect on ageing behavior of rare earths (Pr6O11-Er2O3-Y2O3)-doped ZnO varistor ceramics, J. Rare Earths, 30, 1028, 10.1016/S1002-0721(12)60174-4 Wurst, 1972, Lineal intercept technique for measuring grain size in two-phase polycrystalline ceramics, J. Am. Ceram. Soc., 55, 109, 10.1111/j.1151-2916.1972.tb11224.x Fan, 1994, Deep level transient spectroscopy of zinc oxide varistors doped with aluminum oxide and/or silver oxide, J. Am. Ceram. Soc., 77, 2663, 10.1111/j.1151-2916.1994.tb04659.x