Molar volumes and thermal expansion of ZrC, c-ZrO₂, m-ZrO₂, and yttria-stabilized ZrO₂ (ref. 32 and 33).

Phase	Molar volume (Vm) (cm3 mol−1)	Thermal expansion (%)
		800 °C	1000 °C	1200 °C
ZrC	15.3	0.3	0.5	0.6
c-ZrO2	19.6	0.8	1.0	1.2
m-ZrO2	21.0	0.6	−0.2 to 0.8	−0.1 to 0.1
Yttria-stabilized ZrO2	—	0	0.1	0.3