Large‐Deformation Strength Analysis of Chemically Strengthened Glass Disks

Connolly, Derry; Stockton, Allen C.; O’Sullivan, T. C.

doi:10.1111/j.1151-2916.1989.tb06234.x

Cited by 6 publications

References 4 publications

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Ceramics, Mechanical Properties and Behavior

Glass

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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Structural ceramics are used in applications such as gas turbines, machining, heat exchangers, aerospace components, armor, thermal barrier coatings, and bearings. Advantages of ceramics over metals include dimensional stability; low densities, which translate into weight savings and increased fuel efficiencies; high temperature capabilities; and corrosion resistance. The overriding concern with regard to the mechanical performance of ceramics is their brittleness and hence sensitivity to flaws. There is usually little or no warning that failure is imminent because deformation strain prior to failure is usually less than 0.1%. As a result, a primary aim of structural ceramics research has been the development of tougher ceramics. The mechanical properties of ceramics are very sensitive to starting materials, forming processes, heat treatment conditions, and surface preparation. Fracture analysis plays an important role in understanding the relationships between structure and mechanical properties, and the conditions that lead to failure

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Ceramics, Mechanical Properties and Behavior

Glass

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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Ceramics, Mechanical Properties, and Behavior

Glass

Tandon

2003

Kirk-Othmer Encyclopedia of Chemical Technology

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Ceramic materials present many advantages for structural applications, especially in extreme environments. Their high melting temperatures, high hardness, inertness, and relatively low densities make them attractive for many applications as replacements for metals and also as enablers for new technologies. For structural applications at low and modest temperatures, the design engineer is concerned about the load‐bearing capacity (stiffness, strength, and fracture toughness), the reliability (strength variability), and the time‐dependent strength (subcritical crack behavior). At elevated temperatures, time‐dependent deformation due to mechanisms such as creep is most important. In wear applications the hardness, toughness, and frictional properties are of interest. This chapter serves as an introduction to these topics. The mechanical properties of ceramics are important not only for the structural applications discussed, but also when these materials are used for electrical, optoelectronic, or biomedical applications.

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