Sintered bodies based on niobium suboxide
View Patent ↗Disclosed are sintered bodies that include: (a) 30 to 100 mol % of NbO x , wherein 0.5<x<1.5; and (b) 0 to 70 mol % of MgO. The sintered bodies may be used as inert apparatuses in the production of niobium suboxide powder or niobium suboxide anodes, or as chemically resistant components in chemical apparatuses.
1. A sintered body comprising: (a) 30 to 100 mol % of NbO x , wherein 0.5<×<1.5; and (b) 0 to 70 mol % of MgO wherein said sintered body has a porosity of from greater than 0% by volume to less than 30% by volume.
2. The sintered body of claim 1 comprising: (a) 35 to 100 Mol % of NbO x ; and (b) 65 to 0 Mol % of MgO.
3. The sintered body of claim 1 comprising: (a) 45 to 60 Mol % of NbO x ; and (b) 55 to 40 Mol % of MgO.
4. The sintered body of claim 1 wherein 0.7<×<l. 3 .
5. The sintered body of claim 1 wherein said porosity is from about 1% by volume to less than 15% by volume.
6. The sintered body of claim 1 wherein said sintered body has a microstructure comprising homogeneous, NbO x -rich regions and MgO-rich regions, which each extend at most 1.5 μm in at least one direction.
7. The sintered body of claim 1 wherein said sintered body is a sintering plate for solid electrolyte capacitor anodes.
8. A chemical apparatus comprising chemically resistant components fabricated from the sintered body of claim 1 .