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A method of sealing defects in thin-film Pd-alloy composite membranes using commercially available glass frit powder is detailed. This technique involves application of a low melting point glass frit and in situ firing in inert gas to seal defects on the order of 1mm in diameter. In this case, a glass frit with a melting point of 560°C was found to produce stable seals at 520°C during a 150h stability...
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