FIELD: optical engineering.
SUBSTANCE: zinc and cadmium halcogenide samples suitable for manufacturing optical parts transparent in a wide spectrum region are prepared from melt by recrystallization compressing of powders or by vapor-phase precipitation followed by heat treatment in tin melt. Prior to be thermally treated, surface of each sample is coated with a layer of viscose suspension possessing adhesion to material being coated and largely consisting of inert substance with, incorporated therein, particles of material being the main component of zinc or cadmium halcogenide being coated. Suspension layer is partially dried by immersion into tin. Advantageously, inert substance of viscose suspension utilized is clay-like substance, for example kaolin.
EFFECT: improved optical characteristics of blanks due to optimized heat treatment conditions, including diminished loss of material and safety of process.
8 cl, 2 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING CRYSTALS OF CHALCOGENIDES OF AB-TYPE | 1991 |
|
RU2031983C1 |
| PROCESS OF PREPARATION OF CHARGE TO PRODUCE SOLID SOLUTIONS OF CHALCOGENIDES OF LEAD AND TIN BY PARA-PHASE METHODS | 1997 |
|
RU2155830C2 |
| 0 |
|
SU681626A1 | |
| METHOD FOR OBTAINING ZINC CHALKOGENIDES | 2014 |
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RU2636091C1 |
| METHOD OF GROWING MONOCRYSTALS OF ZINC OR CADMIUM CHALCOHENIDES, SOLID SOLUTIONS ON THEIR BASE AND APPARATUS FOR PERFORMING THE METHOD | 1990 |
|
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| METHOD OF PROCESSING SELENIDE ZINC BASED CRYSTAL MEMBERS | 0 |
|
SU1630334A1 |
| METHOD OF PREPARING POLYCRYSTALLINE BLOCKS AND FILM COATING BASED OF ZINC SULFIDE | 1994 |
|
RU2077617C1 |
| METHOD OF PREPARING N-TYPE SELENIDE-BASED SEMICONDUCTOR MATERIAL | 2000 |
|
RU2170291C1 |
| PRODUCTION OF ALLOYED ZINC CHALCOGENIDES AND THEIR SOLID SOLUTIONS | 2013 |
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