Publication Type
Journal
Journal Name
Ceramics International
Publication Date
Page Numbers
1235 to 1241
Volume
35
Issue
3
Abstract
Mechanical properties such as Young's modulus, fracture toughness and slow crack growth have been measured for phase pure and highly dense (<5% porosity) La0.8Sr0.2Ga0.8Mg0.2O3 perovskites. The Young's modulus was measured to be ~175 GPa, while strength and fracture toughness both exhibited low values confirming the poor mechanical properties of the material. LSGM was also proved to be highly susceptible to slow crack growth in humid air at room temperature where in order to survive a one year period the static stresses in the material should be as low as 50 MPa for a 50% failure probability.
