Microstructure and properties of ceramics and composites joined by plastic deformation

Abstract

A review is presented of the design of suitable materials systems for joining by high-temperature plastic deformation, details of the joining techniques, microstructures and properties of the resulting composite bodies, and prospects and limitation for this type of joining technology. Joining parameters and resulting forms are discussed for Al 2O 3/mullite particulate composites, Y 2O 3-stabilized ZrO 2 particulate/Al 2O 3 particulate and whisker-reinforced composites, hydroxyapatite bioceramics, La 0.85Sr 0.15MnO 3 electronic ceramics, MgF 2 optical ceramics, and Ni 3Al intermetallics. Results are contrasted with those obtained by other methods of joining brittle, high-temperature materials, with special focus on durability and mechanical properties.