Ceramics Under Stress

Synopsis: Controlling the porosity and flaw size distribution in a ceramic allows the strength to be specified. A grinding wheel, for example, needs large holes within it to work efficiently but an artificial hip joint or a cutting tool tip needs all the fracture toughness and hardness it can get. How does the fabrication process of sintering and recent refinements of processing help improve and control the microstructure of a ceramic component? Attempts to answer these questions and also discusses one of the latest techniques for ‘pre-stressing’ alumina with zirconia, to effectively toughen the material by incorporating crack stopper zirconia crystals within the alumina microstructure.
Series: Failure of Stressed Materials, Course T353
Language: English
Country: Great Britain
Medium: Video; Videocassette. Standard formats. col. 24 min.
Year of production: 1984
Availability: Sale; 1999 sale: £145.00 (+VAT +p&p)
Subjects: Technology
Keywords: ceramics; materials science; stress in materials

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