Table 1 Elemental composition of theoretical BLS2.7 and EDS analysis of hot-pressed BLS2.7 ceramics post-annealed at 1250 °C under H2S for 12 h and BLS2.7 ceramics sintered naturally at 1250 °C under H2S for 12 h.
From: Barium lanthanum sulfide ceramics as new far-infrared transparent materials
Theoretical BLS2.7 | BLS2.7 hot-pressed ceramics annealed under H2S | BLS2.7 sintered ceramics (natural sintering) | |
|---|---|---|---|
S | 57.7 | 55.4 | 58.8 |
La | 30.9 | 33.0 | 30.3 |
Ba | 11.4 | 11.6 | 10.8 |
La/Ba ratio | 2.7 | 2.8 | 2.7 |
