Table 6 L*a*b* values of different sintering temperatures.

From: Preparation and research of new black zirconia ceramics

Temperature (℃)

L*

a*

b*

1350

44.26

0.38

 − 0.60

1400

43.87

0.15

 − 0.49

1450

44.01

0.44

 − 0.23

1500

44.12

0.40

 − 0.45

1550

45.20

0.39

 − 0.68

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