Nj. Stedman et al., STUDY OF THE RU-MO-O AND RU-W-O PHASE SYSTEMS - RUTILE SOLID-SOLUTIONS RU1-XMXO2, Journal of materials chemistry, 4(4), 1994, pp. 641-645
The phase diagrams of the Ru-Mo-O system at 900-degrees-C and the Ru-W
-O system at 1100-degrees-C have been determined a combination of X-ra
y powder diffraction (XRD) and electron microscopy. The only mixed met
al oxides found in either system were the rutile solid solutions Ru1-x
MxO2 with 0.5>x>0 for M=Mo and 0.13>x>0 for M=W. The composition depen
dence of the unit-cell parameters of the solid solution is consistent
with the calculated band structure of rutile. The alloy Ru1-xWx was fo
und to form in the composition range 0.35>x>0.