2. given that a quality-control inspection can ensure that a structural ceramic part will have no flaws greater than 100 µm (10010-6 m)in size, calculate the maximum service stress available with sic (kic = 3 mpa m1/2) and partially stabilized zirconia (psz) (kic = 9 mpa m1/2). (see example 8.3)

SiC=169.26 Mpa

Partially stabilized zirconia=507.77 Mpa

Explanation:

SiC

Stress intensity, K is given by

hence making the subject where is applied stress, Y is shape factor, a is crack length

substituting the given figures and assuming shape factor, Y of 1

Stabilized zirconia

Stress intensity, K is given by

hence making the subject where is applied stress, Y is shape factor, a is crack length

substituting the given figures and assuming shape factor, Y of 1

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explanation: