Keywords: Fermium-Ytterbium Alloy.jpg A fermium-ytterbium alloy used for measuring the enthalpy of vaporization of fermium metal The fermium content of this fermium alloy is 4 × 10<sup> ˆ’5</sup> weight percent Oak Ridge National Laboratory 1989 Ben E Lewis PD-USGov Original upload log en wikipedia Yinweichen CommonsHelper en wikipedia Fermium-Ytterbium_Alloy jpg 2011-11-03 12 01 Nb07wiki 246×228× 37418 bytes <nowiki> A fermium-ytterbium alloy used for measuring the enthalpy of vaporization of fermium metal Oak Ridge National Laboratory Unknown Ben E Lewis </nowiki> Fermium |