Bi ▲ under 4 ▼ V ▲ under 2 ▼ O ▲ under 1 ▼ ▲ compositions derived from under 1 ▼

摘要

PCT No. PCT/FR90/00543 Sec. 371 Date Mar. 16, 1992 Sec. 102(e) Date Mar. 16, 1992 PCT Filed Jul. 18, 1990 PCT Pub. No. WO91/01274 PCT Pub. Date Feb. 7, 1991.The compositions are derived from Bi4V2O11 and are characterized by the fact that at least one of the elements present is substituted, the substituting element(s) being such that the structural nature of the gamma phase of Bi4V2O11 is maintained, as well as the equilibrium of the loads.