公开(公告)号：EP3122915A4

公开(公告)日：2017-12-06

申请号：EP15767762

申请日：2015-03-17

申请人： BATTELLE ENERGY ALLIANCE LLC

发明人： MARIANI ROBERT D ,  PORTER DOUGLAS L

IPC分类号： C22C38/00 ,  C22C32/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

CPC分类号： C22C32/0026 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

摘要： A composition includes a metal alloy matrix comprising iron and a plurality of nanoparticles dispersed within the metal alloy matrix. Each nanoparticle of the plurality comprises an oxide of a rare-earth metal and at least one metal selected from the group consisting of tantalum, niobium, vanadium, and titanium. Some compositions include a metal alloy matrix comprising iron and a plurality of nanoparticles comprising at least two different oxides of rare-earth metals dispersed within the metal alloy matrix. Some methods include mixing an oxide of a rare-earth metal with a first metal and a second metal. Other methods include mixing a plurality of particles comprising at least one oxide of a rare-earth metal with a molten metal comprising iron. Each particle of the plurality may exhibit a density between about 6.9 g/cm3 and about 9.0 g/cm3.