The incidence of stacking faults in powder samples was studied by means of microstructural analysis and X-ray diffraction. The stacking fault energies were found to be of the order of 50 to 100mJ/m2.
Stacking Faults in Molybdenum-Tantalum and Molybdenum-Carbon Alloys. N.I.Noskova, V.A.Pavlov: Metallofizika, 1973, 44, 53-7