Mechanochemical synthesis and conducting properties of nanostructured rhombohedral scandia stabilized zirconia ceramics

作者：Zyryanov V V^*; Uvarov N F; Sadykov V A; Ulihin A S; Kostrovskii V G; Ivanov V P; Titov A T; Paichadze K S

来源：Journal of Alloys and Compounds, 2009, 483(1-2): 535-539.

DOI：10.1016/j.jallcom.2008.07.229

• Zirconia
• Nanostructured materials
• Mechanochemical synthesis
• Ionic conduction
• X-Ray diffraction

Studies of mechanochemical powders and sintered ceramics in scandia. stabilized zirconia system have been carried out by means of XRD technique, Raman spectroscopy and SIMS. Nanostructured single phase ceramics of Zr(0.88)Sc(0.1)Ce(0.01)Y(0.01)O(1.955) composition with the room-temperature rhombohedral structure caused by ordering of oxygen vacancies possesses excellent mechanical strength and unusual conductivity properties with E(b)similar to E(gb). Decreased level of conductivity at T similar to 1000 K was explained by incomplete stabilization of cubic phase and admixtures of silica and alumina present in starting ZrO(2) reagent of technical grade.

• 出版日期2009-8-26