Hard solder
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United States of America Patent
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Nov 3, 1998
Issued Date -
N/A
app pub date -
Feb 7, 1997
filing date -
Apr 13, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a hard solder for high-temperature soldered joints joining high temperature-resistant materials, especially chromium and alloys based on chromium. The hard solder consists of 40% to 70% by weight chromium, up to 2% by weight of one or several of the metals selected from the group of vanadium, niobium, tantalum, titanium, zirconium and hafnium, up to 2% by weight of one or several of the metals or their oxides selected from the group of rare earths and yttrium, as well as nickel as the balance. The solder according to the present invention is particularly suitable for joining by soldering parts in solid-electrolyte, high-temperature fuel cells.
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