The Synthesis of Nano-Sized Metal Dispersed MgO Composites and Its Magnetic Properties

Microstructural, mechanical, and electrical characteristics of alumina-reinforced ytterbia-stabilized cubic zirconia-based composites

“…Because of its high stability in both reducing and oxidizing environments, c-ZrO 2 has been used as an electrolyte material for solid oxide fuel cells (SOFC) and oxygen sensors. Recently, several kinds of ceramic nanocomposites have been studied, e.g., ceramic/ceramic, 5-9 ceramic/metal, [10][11][12][13][14] and ceramic/ intermetallic 15,16 composite systems. The working temperature of SOFC system is usually high, around 900-1000°C because the oxide ionic conductivity of c-ZrO 2 at low temperatures is insufficient to achieve the appropriate efficiency.…”

“…7,8 In both systems, the ionic conductivity of YSZ does not degrade with the addition of dispersions but with the addition of better mechanical properties. [11][12][13] This paper reports the preparation of the powder mixture using the solution chemistry process and the fabrication of Yb 2 O 3 -stabilized ZrO 2 -based composites reinforced by fine Al 2 O 3 particles to improve the mechanical properties. 19,20 As a first attempt, an YbSZ/Al 2 O 3 composite was fabricated by the conventional powder mixing and sintering method, 21 by which fine Al 2 O 3 , ZrO 2 and Yb 2 O 3 powders are mixed and sintered in a pressureless method.…”