METHOD OF PREPARING POLYCRYSTALLINE BLOCKS AND FILM COATING BASED OF ZINC SULFIDE Russian patent published in 1997 - IPC

Abstract RU 2077617 C1

FIELD: crystal crowing. SUBSTANCE: invention relates to manufacturing optical ceramics transparent in spectrum region from 1 to 12 nm. Polycrystalline blocks and film coatings are prepared by vacuum sublimation onto a substrate from mixture of zinc sulfide with 2-10 wt % of gallium sulfide at a temperature not lower than 850 C. EFFECT: increased erosion resistance. 2 tbl

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RU 2 077 617 C1

Authors

Ryzhkin Ju.S.

Maksimova I.A.

Zhilov Ju.N.

Kuznetsova S.S.

Dates

1997-04-20—Published

1994-08-16—Filed