| 摘要 |
PURPOSE:The titled inexpensive mineral free from inclusion, using a flux comprising a proper amount of mixed powder having a composition of Li2O.V2O5, equal to that of spodumene crystal, synthesizing a crystal from it by an F.Z furnace. CONSTITUTION:LiOH, Al2O3, SiO2, and Cr2O3 are weighed to prepare mixed powder having a composition of Li2O.Al2O3.4SiO2.0.005Cr2O3, blendd, and sintered to give a raw material rod. LiOH and V2O5 are weighed to prepare a composition of Li2O.V2O5, which is blended with about 20wt% of the mixed powder to give blended powder, which is molded and sintered to give a sintered pellet of flux. A beryl crystal synthesized by flux process as a seed crystal is cut in such a way that it is longer in the direction of C-axis, and it is processed to given size. The pellet of flux is placed on the seed crystal 2, the tip of the raw material rod 1 is brought into contact with the top of the pellet, the flux is melted under heating by the halogen lamp 5 in the rotary elliptic mirror 4 of F.Z furnace, to grow a spodumene crystal. |
