You have a ceramic with a surface cracks of 90 m that causes failure at 11 MPa applied stress. Assume Y= 1, what will the fracture strength be if you polish so that the largest surface flaw size is 9 um? Show all work and equations used. (3 pts) The flexural strength of TiC with 20% porosity is 70 MPa, and 60 MPa with 25% porosity. What is the flexural strength for a non-porous specimen of TiC? Show work and all equations used. (3 pts)