Bonding of partially-stabilized zirconia and nickel with nickel oxide layer

Adhesion at metal–ZrO2 interfaces

“…A maximum shear strength of about 90 MPa has been obtained when the interstitial sites at the bonding interface are filled with a layer of NiO [229,232]. There are also results for joints between two pieces of zirconia using nickel interlayers [233].…”

“…Therefore, diffusion bonding techniques have often been applied to make Ni/ZrO 2 direct joints in a vacuum atmosphere at high temperatures and pressures. In the different experiments, the temperature ranges from 900 to 1370 • C and the pressure from 10 to 262 MPa [229][230][231][232]. There is a large dispersion of values for the measured bond strength depending on the experimental conditions: temperature range, bonding times and pressure.…”

Study on Degradation of Solid Oxide Fuel Cell with Pure Ni Anode

“…Figure 3 shows YSZ-NiO interface after sintering and the YSZ-Ni interface after reduction. Bonding strength between YSZ and NiO has been proven to be stronger than that between YSZ and Ni (6). In high temperature sintering (around 1673 K), molten Nioxygen eutectic mixture can form so that the stress caused by the thermal mismatch between NiO and YSZ can be relaxed due to the YSZ surface pattern formed in sintering Figure 4 shows the YSZ-Ni interface after reduction and discharge within different humidified hydrogen environments.…”