Chemical composition: Y0.2Zr0.8O1.9 In general the family are named like: REx Zr1-x O2-x/2 , (RE)DC on RE= Y, La, Nd, Sm, Gd, etc.
Crystalline structure: Fluorite cubic structure (Fm3m (225)) with network parameter 5.14728 nm
Additional comments: Picture made with magnifying glass.
Corresponds to a combustion synthesis via gels.
Micrography of YSZ comertial powder (Tosoh). X200
Micrography of YSZ sheet conformed with tape casting and sintered at 1500 ºC during 6 hours.
Description: Micrography of YSZ powder was made with combustion synthesis via gels and sintered at 1050ºC during 15 hours. X110000. Caution, the micrography hasn't have scale but the bigest particles measure about 50 nm.
Additional comments: The picture was obteined with TEM (Transmition electronic micrography)
5.901 g/cm3
200-210 MPa
5,8-10,5 MPa·m1/2
At the temperature of:
HV10
Tamb
11-12,5
Mechanical resistance over four points: 500-1000 (MPa)
At the frequency of:
Permittivity
48-62 HZ
22
Specific resistivity
20ºC
108-1013(Ωm)
600ºC
108-1016(Ωm)
2680 ºC
Coefficient of linear thermal dilatation
30-1000ºC
10-12,5 (10-6 K-1)
Thermal conductivity
1,5-3 (Wm-1·K-1)
Specific heat capacity
400-550 (Jkg-1·K-1)
800-1600ºC
Good resistance to thermal shock.
Electrolyte in cells with solid oxide combustible. Also is potentially applicable in gas sensors and oxygen pumps. High chemical inertness.
