A new series of La2-xGdxHf2O7 transparent ceramics were fabricated by vacuum sintering using combustion-synthesized powders.
All the ceramics are transparent and the in-line transmittance can reach to 76.1% at 800 nm when x=1.2.
The Gd content has effects on the crystal structure, in-line transmittance, microstructures and densities of the ceramics.
With high density (7.91~8.88 g/cm3) and effective atomic number, some of the La2-xGdxHf2O7 transparent ceramics are promising candidates for scintillator hosts.