Parameters influencing thermal shock resistance and ionic conductivity of 8 mol% yttria-stabilized zirconia (8YSZ) with dispersed second phases of alumina or mullite

Effect of Bismuth Oxide on the Microstructure and Electrical Conductivity of Yttria Stabilized Zirconia

“…The high frequency and low frequency semicircle of 2Bi-10YSZ sample shown in Figure 8 represent the grain resistance and grain boundary resistance [17,24,25], respectively. Due to the relaxation properties of different materials and the relatively high measurement temperature, the high-frequency semicircle of the 8YSZ sample represents its grain boundary resistance, and the grain resistance is calculated via the horizontal intercept of the high frequency impedance curve [16,25]. As for the capacitance (C), it can be calculated with the data of the constant phase element (Q).…”

Enhanced Electrical Resistivity of Al2O3 Addition Modified Na0.5Bi2.5Nb2O9 High‐Temperature Piezoceramics

“…These pores or voids are undesirable for densification because the applied electrical field cannot be high enough for poling, and are negative to enhance the electrical resistivity as they might form electric current paths. In the field of machinable ceramics, the introduction of secondary phases into ceramic matrix has been widely demonstrated to be an effective way to improve the machinability and toughness, increase densification and decrease ionic conductivity such as SiC/BN, ZrO 2 /BN, Al 2 O 3 /ZrO 2, Al 2 O 3 /Y 2 O 3 –ZrO 2 , etc. However, this effective way has seldom been applied to BLSFs to get dense bulk ceramics with high performance.…”

In-situ synthesis of Sc2W3O12/YSZ ceramic composites with controllable thermal expansion

“…According to literature [18], incorporating trivalent rare earth ions such as Y 3 þ , Pr 3 þ and Eu 3 þ can promote the formation of oxygen vacancies for charge compensation and obtain YSZ at low temperature. Moreover, the liquid-phase reaction method having good chemical homogeneity can overcome defect of solid state method.…”