EA200200655A1 - METHOD AND DEVICE FOR CULTIVATION OF SAPPHIRE SINGLE CRYSTALS ACCORDING TO N. BLETSKAN - Google Patents
METHOD AND DEVICE FOR CULTIVATION OF SAPPHIRE SINGLE CRYSTALS ACCORDING TO N. BLETSKANInfo
- Publication number
- EA200200655A1 EA200200655A1 EA200200655A EA200200655A EA200200655A1 EA 200200655 A1 EA200200655 A1 EA 200200655A1 EA 200200655 A EA200200655 A EA 200200655A EA 200200655 A EA200200655 A EA 200200655A EA 200200655 A1 EA200200655 A1 EA 200200655A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- prism
- crucible
- seed crystal
- crystal
- parallel
- Prior art date
Links
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Способ выращивания монокристаллов сапфира, включающий получение расплава исходного материала в тигле, введение в контакт с расплавом затравочного кристалла сапфира, управление скоростью подъема последнего, регулирование температурного поля расплава, причем выращивание осуществляют в объеме призмы, соосной затравочному кристаллу, причем грани призмы параллельны кристаллографическим граням последнего; используют затравочный кристалл в виде прямоугольной призмы, ориентированной в направлении <1010>, боковые грани которой совпадают с плоскостями {0001} и, а выращивание монокристалла производят в объеме прямоугольной призмы, составляющим 0,65-0,7 рабочего объема тигля, причём две боковые грани этой призмы параллельны плоскости {0001}, а две другие - плоскостизатравочного кристалла; устройство для выращивания монокристаллов сапфира, содержащее установленные в вакуумной камере экраны, нагреватель, тигель с формообразователем, затравкодержатель с закрепленным в нем затравочным кристаллом сапфира, системы регулирования скорости подъема затравочного кристалла и мощности нагревателя, причем формообразователь выполнен в виде соосной затравочному кристаллу призмы, грани которой параллельны кристаллографическим граням последнего; при использовании затравочного кристалла в виде прямоугольной призмы, ориентированной в направлении <1919>, боковые грани которой совпадают с плоскостями {0001} и, формообразователь выполнен в виде прямоугольной призмы, объем которой составляет 0,65-0,7 рабочего объема тигля, причём две боковые грани формообразователя параллельны плоскости {0001}, а две другие - плоскостизатравочного кристалла; тигель с нагревателемA method of growing sapphire single crystals, including obtaining a melt of the starting material in a crucible, bringing sapphire seed into contact with the melt, controlling the rate of lifting of the latter, controlling the temperature field of the melt, and growing is carried out in a prism volume coaxial with the seed crystal, and the edges of the prism are parallel to the crystallographic edges of the latter ; use a seed crystal in the form of a rectangular prism oriented in the <1010> direction, the lateral faces of which coincide with the {0001} planes and, while the single crystal is grown, the volume of the rectangular prism is 0.65-0.7 working volume of the crucible, and two the faces of this prism are parallel to the {0001} plane, and the other two are flat crystal; a device for growing sapphire single crystals containing screens installed in a vacuum chamber, a heater, a crucible with a shaper, a seed holder with a sapphire seed crystal fixed in it, a system for controlling the speed of lifting the seed crystal and the heater power, and the shaper is made in the form of a prism coaxial with the seed crystal whose facets parallel to crystallographic edges of the latter; when using a seed crystal in the form of a rectangular prism oriented in the direction <1919>, the lateral faces of which coincide with the {0001} planes and, the former is made in the form of a rectangular prism whose volume is 0.65-0.7 working volume of the crucible the side faces of the former are parallel to the {0001} plane, and the other two are flat surface of the shatter crystal; crucible with heater
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA200200655A EA200200655A1 (en) | 2002-07-09 | 2002-07-09 | METHOD AND DEVICE FOR CULTIVATION OF SAPPHIRE SINGLE CRYSTALS ACCORDING TO N. BLETSKAN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA200200655A EA200200655A1 (en) | 2002-07-09 | 2002-07-09 | METHOD AND DEVICE FOR CULTIVATION OF SAPPHIRE SINGLE CRYSTALS ACCORDING TO N. BLETSKAN |
Publications (2)
Publication Number | Publication Date |
---|---|
EA003419B1 EA003419B1 (en) | 2003-04-24 |
EA200200655A1 true EA200200655A1 (en) | 2003-04-24 |
Family
ID=28051686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA200200655A EA200200655A1 (en) | 2002-07-09 | 2002-07-09 | METHOD AND DEVICE FOR CULTIVATION OF SAPPHIRE SINGLE CRYSTALS ACCORDING TO N. BLETSKAN |
Country Status (1)
Country | Link |
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EA (1) | EA200200655A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU768052A1 (en) * | 1978-11-27 | 1991-02-23 | Предприятие П/Я Х-5476 | Method of growing monocrystals |
US4580613A (en) * | 1982-08-05 | 1986-04-08 | Howmet Turbine Components Corporation | Method and mold for casting articles having a predetermined crystalline orientation |
SU1132606A1 (en) * | 1983-08-11 | 1991-04-07 | Предприятие П/Я Х-5476 | Apparatus for growing single crystals of high-melting materials |
CS264935B1 (en) * | 1988-03-10 | 1989-09-12 | Perner Bohumil | Treatment of growth conditions and growth sapphire modified by kyropouls method |
-
2002
- 2002-07-09 EA EA200200655A patent/EA200200655A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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EA003419B1 (en) | 2003-04-24 |
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MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM MD TM |
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MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AZ BY KZ KG TJ RU |