Affiliation:
1. Received for publication February 27, 1979. Accepted for publication June 4, 1979
Abstract
A method for viscosity measurement is described and representative data are given for opaque, gingival, and incisal porcelains. The significance of viscosity in annealing and in stress development due to thermal expansion mismatch is discussed. Thermal history of the porcelain is shown to be important only over a relatively small temperature interval in affecting residual stresses.
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25 articles.
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