Coating Configuration

FIG. 17. BENDING COMPRESSIVE STRENGTH OF ZIRCOA AND CERAC MATERIALS Zr02 ON 17-4 SS SUBSTRATE

Figure 18 shows the preliminary data on the bending tensile failure of the coatings, again using two different thicknesses and three different power levels for the two powders. The data is really preliminary and should not be interpreted in too much detail but it is surprising that both coatings produced at different power levels have about the same strength.

Concurrent with the work on measuring the mechanical properties of the coatings, we are running two other tests: one is the environmental test as shown on Figure 19. Rather than running coupons in a diesel engine, which can be expensive and time consuming, we have elected to run a controlled environment furnace where we

Zlrcoa-48KW Zircoa-42KW Zircoa-39KW Cerac-IC Cerac-2C Cerac-3C

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