The defects (He-3 bubbles, dislocations, dislocation loops, clusters of sel
f-interstitial atoms) formed during aging of palladium tritides are analyze
d using a combination of transmission electron microscopy techniques. Their
evolution under aging together with the effect of the metallic substitutio
n by Ph or Pt is investigated. A comparison with the results previously obt
ained from X-ray and neutron scattering experiments is also performed. (C)
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