Table 2.

Anatase TECs calculated from Figures 6 and 7 at 750 °C, and from literature: linear (α_a, α_c) and volumetric (β).

TEC ×10−5 (°C−1)	(This study) Pressurised					Hummer et al. [40]	Albetran et al. [27]		Rao et al. [18]	Jagtap et al. [23]
Environment	Pure	Al	In	In–Cr	Ag–Cr	Air	Air	Argon	Air	Air	Vacuum
αa	0.41 (3)	0.52 (2)	0.28 (4)	0.35 (4)	0.39 (4)	0.58 (1)	0.72 (15)	0.62 (49)	0.63 (3)	0.63 (1)	1.20 (1)
αc	1.45 (2)	1.59 (5)	1.27 (3)	1.37 (2)	1.42 (3)	1.03 (2)	0.86 (84)	0.79 (50)	1.29 (6)	0.84 (2)	1.18 (2)
β	2.27 (4)	2.62 (8)	1.82 (5)	2.05 (7)	2.19 (6)	2.17 (4)	2.29 (11)	2.00 (48)	2.54 (11)	2.13 (4)	3.59 (4)
αa/αc	0.28 (2)	0.32 (1)	0.22 (2)	0.26 (2)	0.28 (2)	0.56 (1)	0.84 (1)	0.75 (1)	0.49 (3)	0.75 (1)	1.02 (1)