Introduction to ASTM C1161 Advanced ceramics are widely used in applications where high stiffness, thermal stability, wear resistance, and chemical inertness are required. Unlike metals or polymers, however, ceramics exhibit little to no plastic deformation and fail in a brittle manner. Because of this behavior, traditional tensile testing is often impractical or unreliable for ceramic materials. Instead, flexural strength testing has become the primary method for characteriz

ASTM D5458 measures how strongly layers of stretch wrap film cling to each other, using a 20° inclined plane and a low-force tensile tester.