Table 1.

Results of element analysis, wt %.

Element	Intragrain	Intergranular Phase
C	1.80 ± 0.09	1.50 ± 0.06
O	14.44 ± 0.47	17.36 ± 0.81
Y	68.83 ± 0.37	59.57 ± 2.00
La	9.13 ± 0.14	16.53 ± 1.70
Yb	5.79 ± 0.10	5.04 ± 0.18