WO1999061686A9 - Procede de production de monocristaux de silicate a base de lanthane et de gallium - Google Patents
Procede de production de monocristaux de silicate a base de lanthane et de galliumInfo
- Publication number
- WO1999061686A9 WO1999061686A9 PCT/RU1999/000168 RU9900168W WO9961686A9 WO 1999061686 A9 WO1999061686 A9 WO 1999061686A9 RU 9900168 W RU9900168 W RU 9900168W WO 9961686 A9 WO9961686 A9 WO 9961686A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lanthanum
- gallium
- mixture
- crystals
- vyρaschivaniya
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/34—Silicates
Definitions
- LHC metals have a greater dielectricity than quartz. Their symmetry (triple) allows for the existence of cutoffs with a small and even zero temperature coefficient (UF), while the value of the power factor is 2 Langasit does not have phase transitions to a melting point of 1470 ° ⁇ .
- the size of the ingot must be at least 50 mm. With this, LHC crystals must have the necessary crystalline orientation and be free.
- the oxides of the metals are mixed in the system, then they are sealed in the oxygen-containing medium at the temperature
- the main task of the present invention is to work out the purposeful and economical means of cultivating a low-melanocom-
- the original components add water in the amount of 1, 8 - 2% of the weight of the mixture.
- the oxidizing agent uses a mixture of air and oxygen in a 5: 1 unit, and the vehicle is equipped with a
- the processors have found alternative properties of the LGS crystal, which, in combination with other process parameters, increase the quality of the investment system.
- the CUS method can be sold through local burning in the presence of an oxidizing agent of a mixture of lanthanum oxides and brown with the addition of a metallic gallium, taken in. The result of burning of such a mixture is the oxidation of gallium with the release of heat;
- P ⁇ luchae maya shi ⁇ a imee ⁇ s ⁇ e ⁇ i ⁇ me ⁇ iches ⁇ y s ⁇ s ⁇ av _.azSa 5 ⁇ Yu ⁇ and ⁇ ig ⁇ dna for vy ⁇ aschivaniya ⁇ aches ⁇ venny ⁇ m ⁇ n ⁇ is ⁇ all ⁇ v LGS zayavlenny ⁇ ⁇ ien ⁇ atsy.
- the lanthanum oxide is 99.99% pure, the extreme white oxide 99.99% and gallium metal
- the presence of water is necessary to reduce the temperature of the reaction, which, in the end, ensures the necessary dispersed system.
- the resulting mixture is discharged in the form of a briquette, placed in a horizontal process, and a fresh air mixture is supplied with an acid at a ratio of 5: 1, not a matter of 10.
- the mixture is locally heated before the start of the reaction of the high-temperature synthesis ( ⁇ ), for example, in the voltaic arc.
- ⁇ high-temperature synthesis
- gallium oxide is produced and a partial interaction of the mixture with gallium oxide occurs.
- the obtained intermediate product has been mixed since 16.3 with a metallic melted gallium.
- the resulting mixture is discharged in the form of a briquette, placed in a horizontal reaction, in which it delivers an acid with a speed of 5 l / h.
- the mixture is locally heated before the start of the C ⁇ C reaction.
- ⁇ sid gallium vs ⁇ u ⁇ ae ⁇ in ⁇ ea ⁇ tsiyu with ⁇ sid ⁇ m lan ⁇ ana with ⁇ b ⁇ az ⁇ vaniem ⁇ mezhu ⁇ chn ⁇ y ⁇ azy ⁇ aya ⁇ i d ⁇ g ⁇ anii ⁇ d ⁇ s ⁇ izhenii ⁇ em ⁇ e ⁇ a ⁇ u ⁇ y ⁇ yad ⁇ a 1400 ° C with vzaim ⁇ deys ⁇ vue ⁇ ⁇ sid ⁇ m gallium ⁇ emniya d ⁇ ⁇ b ⁇ az ⁇ vaniya ⁇ azSa 5 ⁇ Yu ⁇ 4.
- the reaction time at the first and second stages is 40-50 minutes. Settling to a room temperature - 40-50 min.
- the circuit is loaded into a crucible with a diameter of 120 mm. in quantities of 6.5 kg.
- the crucible is made from iidium of 99.99% pure. Then the crucible is placed in a large chamber in a chamber for installing cultivation of crystals. ⁇ ame ⁇ u ⁇ achivayu ⁇ d ⁇ pressure of 10 "4 mm. ⁇ .s ⁇ .
- the resulting alloy is discharged for 32 hours before contacting the customer with an exhaust gas ⁇ 02.1> with the alloy, the pressure is mixed at a pressure of 1 Then set the cost of the rotation of the consumable crystal to 28 rpm, otherwise the consumable crystal to the contact with
- the alloy melts and there is a pulling out of the LHC crystal from the alloy with a velocity that changes in the process of the process of 2.5
- This method allows you to radiate a variety of lantangallium silicate materials with a diameter of at least 75 mm. and weighing more than 2.0 kg
- the cultivation of LGS is a deliberate, environmentally friendly process, and crystals are free of scattering centers that are non-dispersible.
- the expanded crystals are suitable for the manufacture of such LGS plates, while at first they are normal, they are at a loss of good temperature.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU98109547 | 1998-05-22 | ||
RU98109547A RU2156326C2 (ru) | 1998-05-22 | 1998-05-22 | Способ получения шихты для выращивания монокристаллов лантангаллиевого силиката |
RU98113240 | 1998-07-02 | ||
RU98113240A RU2156327C2 (ru) | 1998-07-02 | 1998-07-02 | Способ выращивания монокристаллов лантангаллиевого силиката |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999061686A1 WO1999061686A1 (fr) | 1999-12-02 |
WO1999061686A9 true WO1999061686A9 (fr) | 2000-02-10 |
Family
ID=26653959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU1999/000168 WO1999061686A1 (fr) | 1998-05-22 | 1999-05-21 | Procede de production de monocristaux de silicate a base de lanthane et de gallium |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO1999061686A1 (ru) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100382160B1 (ko) * | 1999-10-20 | 2003-05-01 | 신건철 | 란가사이트 분말과 그 제조방법 |
US6514336B1 (en) | 2000-10-12 | 2003-02-04 | Utar Scientific, Inc. | Method of growing piezoelectric lanthanide gallium crystals |
WO2003033780A1 (en) * | 2001-10-16 | 2003-04-24 | Utar Scientific Inc. | Method of growing piezoelectric lanthanide gallium crystals |
CN108321672B (zh) * | 2018-03-12 | 2020-06-23 | 中国科学院苏州生物医学工程技术研究所 | 一种高峰值功率的钬激光系统 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2126063C1 (ru) * | 1996-09-23 | 1999-02-10 | Рафида Девелопментс Инкорпорейтед | Способ получения шихты для выращивания монокристаллов лантангаллиевого силиката |
RU2108418C1 (ru) * | 1997-03-12 | 1998-04-10 | Товарищество с ограниченной ответственностью фирма "ФОМОС" | Способ выращивания монокристаллов лантангаллиевого силиката |
-
1999
- 1999-05-21 WO PCT/RU1999/000168 patent/WO1999061686A1/ru active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO1999061686A1 (fr) | 1999-12-02 |
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