Table 2.

Binding energies of YSZ and ZTA samples.

Sample	Binding energy (eV)
	Y 3d3/2	Y 3d5/2	Zr 3d3/2	Zr 3d5/2	Al 2p	O 1s
YSZ	159.3	153.9	185.9	183.6	—	531.7
ZTA	—	—	186.1	183.5	76.6	532.5