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J Dent Res 54(6): 1133-1137, 1975
© 1975 International and American Associations for Dental Research
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Initiation of Cracks in Dental Amalgam

OSAMA YOUNIS 1, KAMAL ASGAR 1, and JOHN M. POWERS 1

1 School of Dentistry, University of Michigan, Ann Arbor, Michigan 48104, USA

The force required to initiate cracks in dental amalgam beams was measured and related to the microstructure. The force measured was dependent on age and on the distribution of phases on the tension side of the beam. The Ag-Cu phase is most resistant to failure in Dispersalloy and an experimental alloy.

Submitted on April 4, 1975
Accepted on June 27, 1975






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