Sinterability, mechanical, and electrical properties of Al2O3/8YSZ nanocomposites prepared by ultrasonic spray pyrolysis.
Al2O3 nanoparticles added the YSZ for improving the mechanical property and the ionic conductivity. Al2O3/YSZ nanocomposites were prepared by ultrasonic spray pyrolysis and PECS process. The relative density of the Al2O3/YSZ nanocomposites was fully densified at a sintering temperature of 1100 degrees C. The grain size for 5 vol.% Al2O3/YSZ was less than 100 nm. The fracture toughness and total ionic conductivity of Al2O3/YSZ nanocomposites were improved compared with Al2O3/YSZ nanocomposites by conventional process, due to homogeneous dispersion and uniform particle size of added Al2O3.
Yang
Jae-Kyo
JK
Department of Fine Chemical Engineering, Hanyang University, Ansan 426791, Korea.
Shim
Kwang-Bo
KB
Kim
Hee-Taik
HT
Choa
Yong-Ho
YH
D000537:Aluminum Oxide / Q000737:chemistry; D004573:Electrolytes; D007477:Ions; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D014465:Ultrasonics; D014961:X-Ray Diffraction
D004573:Electrolytes; D007477:Ions; D000537:Aluminum Oxide