SYMPOSIA PAPER Published: 01 January 1979

Fracture Surface Energy Measurements by the Notch-Beam Technique


The notch-beam technique (NBT) for determining fracture surface energies (γi) of ceramic materials is discussed. Basic principles involved in the technique are reviewed, and effects of different test variables on measured γi values are examined. In addition, merits and limitations of the technique are discussed, and measured values are compared with those obtained by other techniques.

Author Information

Bansal, GK
Battelle Columbus Laboratories, Columbus, Ohio
Duckworth, WH
Battelle Columbus Laboratories, Columbus, Ohio
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Developed by Committee: E08
Pages: 38–46
DOI: 10.1520/STP36623S
ISBN-EB: 978-0-8031-4747-8
ISBN-13: 978-0-8031-0365-8