FIELD: chemistry.
SUBSTANCE: invention relates to devices for preparation of single crystals of high-melting fluorides of horizontal directional crystallization from melt. Device comprises vacuum chamber 1 accommodating heat unit 2, consisting of coal-graphite heat-insulating modules 3, top 4 and bottom 5 heaters and heat shields 15, graphite container 6 with charge of material to be crystallised, installed with possibility of moving into a vacuum chamber 1, inert gas supply nozzles 10 and evacuation system and/or pumping of gaseous products 9, inspection window 11, wherein upper flat belt L-shaped heater 4 and bottom belt U-shaped heater of inverted shape 5 are made in form of graphite mono-blocks integrated with buses, on one side fixed with water-cooled current leads of vacuum chamber by means of detachable connection.
EFFECT: simplified and improved manufacturability and reliability of heating assembly, including by eliminating effect of thermal expansions on heaters.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| THERMAL NODE OF INSTALLATION FOR HALOGEN CRYSTALS GROWING BY HORIZONTAL UNIDIRECTIONAL CRYSTALLIZATION METHOD | 2017 |
|
RU2643980C1 |
| REFRACTORY OXIDE MONOCRYSTALS GROWING METHOD | 2006 |
|
RU2320789C1 |
| DEVICE FOR GROWING OF REFRACTORY SINGLE CRYSTALS | 2002 |
|
RU2208665C1 |
| APPARATUS FOR GROWING MONOCRYSTALS FROM MELT | 2004 |
|
RU2261296C1 |
| DEVICE FOR GROWING SAPPHIRE MONO-CRYSTALS | 2003 |
|
RU2227821C1 |
| APPARATUS FOR GROWING SINGLE CRYSTALS OF GALLIUM ARSENIDE BY THE CZOCHRALSKI METHOD | 2021 |
|
RU2785892C1 |
| METHOD OF GROWING MONOCRYSTALS-SCINTILLATORS BASED ON SODIUM IODIDE OR CAESIUM IODIDE AND DEVICE FOR IMPLEMENTING METHOD | 2006 |
|
RU2338815C2 |
| HEATER FOR GROWTH OF MONOCRYSTALS FROM MELT BY VERTICAL PULLING TECHNIQUE | 2013 |
|
RU2531514C1 |
| DEVICE FOR GROWTH OF MONOCRYSTALS FROM MELT BY VERTICAL PULLING TECHNIQUE | 2013 |
|
RU2534103C1 |
| METHOD OF CLEANING MELT SURFACE WHEN GROWING GERMANIUM MONOCRYSTALS | 2017 |
|
RU2641760C1 |
