I1111iii

0 900 1.800 2.700 3,600 4,500 5,400 6.300 7.200 8.100 9.000 9.900 10,800 11,700 12.60013,500 14,400 APPROXIMATE DEPTH OF SPUTTERING (ANGSTROMS = 10"8 cm)

Figure 7. Surface composition of 35 Cr CoCrAlY as determined by XPS as a function of depth of sputtering.

Accumulated Sputter Time (min)

20Cr CoCrAlY Coating Composition

Weight %

Atomic %

Co

Cr

0 0

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