creator Hill, Vernon L. creator Nichols, Harry R. Hafnium base alloy containing between about 15 and about 35 weight percent tantalum and between about 2 and about 20 weight percent iridium. The alloy may also contain aluminum, silicon or chromium as additional alloying agents. Submitted by Aric Ahrens (ahrens@iit.edu) on 2011-09-13T18:11:30Z No. of bitstreams: 1 3622308.pdf: 226404 bytes, checksum: 987c6d35e7b79fe18a34bd9936b1b2c4 (MD5) Made available in DSpace on 2011-09-13T18:11:30Z (GMT). No. of bitstreams: 1 3622308.pdf: 226404 bytes, checksum: 987c6d35e7b79fe18a34bd9936b1b2c4 (MD5) Previous issue date: 1971-11-23 IIT Research Institute 2009-04-27 1971-11-23 3,622,308 http://hdl.handle.net/10560/2201 en United States Patent Patent reformatted digital application/pdf No Copyright - United States http://rightsstatements.org/page/NoC-US/1.0/ Open Access