Abstract
Additional lithium deuteride-tritide [Li(D, T)] compact bulk swelling and outgassing data from 77 to 273 K and 373 to 723 K is presented. A swelling maximum is seen at 425 K and a minimum at 575 K. The largest swelling is seen at 723 K. Variable-temperature experiments show that the mechanism turns on progressively as the temperature is raised to the maximum. The percent of 3He outgassed is presented and shown not to affect the bulk swelling. The forces involved in swelling are illustrated by the 270 MPa needed to restrain it at 323 K. Hardness data is also listed. The swelling at 323 and 348 K is analyzed and the slow linear region II growth is shown not to correspond to the 3He production rate. The behavior more closely fits radiation-induced creep.
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