Abstract
Heavy rare gas atoms implanted into metals precipitate and form highly pressurised bubbles, in solid or fluid form, depending on implantation conditions (temperature, fluence). Different analysis techniques like TEM, HRTEM, X-ray diffraction, EELS, XANES, etc. have been used in order to study solid bubbles and their epitaxial relationship with the host matrix. It has been found that solid bubbles have fcc and hcp structures in fcc and hcp matrices respectively. For all matrices a general relationship clearly appears at the bubble matrix interface, rare gas solid close-packed planes are parallel to the close-packed planes of the matrix. During further annealing of samples containing solid bubbles, the solid/fluid phase transformation occurs under approximately the same conditions (temperature, pressure) as in bulk solid rare gas.
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