CN1015651B - Process for preparation of star-light gem - Google Patents
Process for preparation of star-light gemInfo
- Publication number
- CN1015651B CN1015651B CN 90109706 CN90109706A CN1015651B CN 1015651 B CN1015651 B CN 1015651B CN 90109706 CN90109706 CN 90109706 CN 90109706 A CN90109706 A CN 90109706A CN 1015651 B CN1015651 B CN 1015651B
- Authority
- CN
- China
- Prior art keywords
- crystalline
- asteria
- growth
- crystal
- star
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
- Adornments (AREA)
Abstract
The present invention relates to a high mass-mixing wetting induced module technology for directly preparing asteria from a fused mass. The obtained asteria has obvious six light rays which continuously move under a light source when people observes the six light rays, and the asteria is a valuable decoration gem.
Description
The method of the jewel that the invention relates to directly grows from melt has the starlight effect.
Now the growth method of crystalline material is according to U.S. HELaBelle, Jr, method carry out, be called moistened guide mould process, i.e. the EFG method.United States Patent (USP) 2488507 had once been narrated a kind of technology of flame melt method growth starlight red (indigo plant) jewel, and its weak point is that operation is numerous and diverse, and cost rate is low, the starlight weak effect.Chinese patent 85103282.6 has been introduced the method and the device of growing bar shaped ruby, and its method can't the direct growth asteria, through improving, directly draws high admixture Tio from melt
2Asteria.
The objective of the invention is to directly from melt, draw high admixture TiO
2Asteria, guarantee that it has six tangible star lines, with the variation of the light variation of moving about, glittering flash of light, in bright gay color, crystal matter is close hard, present method starlight ruby, starlight white stone, starlight blue jewel, starlight black onyx and corundum class light cat's eye etc. of living of can growing.And reach easy to process, improve the purpose of yield rate and the happy effect of tangible star.
The present invention is in the asteria rod of the lubricated guided mode method growth of high admixture, admixture Tio
20.1～0.4%(weight ratio), make jewel have horizontal and axial uniform distribution, six star lines are and are distributed in symmetrically on the crystalline cross section.The invention is characterized in that the crystalline growth axis is parallel with optical axis, crystal growth acts on the molten bath of die tip and takes place, the edge that crystalline is of a size of die tip limits, then can grow and have 20 millimeters asteria crystal bars with the circular cross section of interior various diameters at φ, the crystal growth effect is at certain orientation, rotating state takes place down, and the starlight effect is to finish under the oxygen supply state.The size of the capillary pipe seam of mould and configuration are determining the hot-fluid state of melt in the liquid film.Crystalline pulling rate rotating speed etc. is determining distribution and the concentration of dopant ion in crystal.Its pulling rate is 5～30 millimeters/hour, and rotating speed is 1～60 rev/min.
The effect that starlight produces is under high temperature (1100 ℃～1400 ℃) oxygen supply condition, finishes through 38 hours.Adopt method of the present invention starlight ruby, starlight white stone, starlight blue jewel, starlight color changing gem, starlight purple gem and other starlight colored gemstones and the diamond spar series light cat's eye of living of can growing.Produce the diamond spar series cat's eye, promptly perpendicular to (0001) face of jewel along a L
2Symmetry axis, with gem crystal rod cutting fracture, with L
2Face (being ellipsoid) is guarded against for the baseplane grinding and polishing becomes plain type in the parallel plane of axle, then can occur the light belt like opal that a flicker is moved about after the star processing on ellipsoid.
Adopt method of the present invention compared with prior art, its technology is simple, improves yield rate, and starlight effect distinctness improves the quality of products, and asteria, also can grow light cat's eye alive and other corundum gems are produced in decapacitation.
The invention will be further described below in conjunction with embodiment: adopt the device of Chinese patent CN85103282 growing bar shaped ruby, by 2.0%Cr
2O
3(weight ratio), 0.1～0.4%Tio
2(weight ratio) and matrix Al
2o
3The raw material of forming that mixes is packed in the crucible, 5～10 millimeters/hour of pulling rates, finishes crystal growing process under 1～60 rev/min and 0 ° seed crystal condition of rotating speed.The vertical C axle of gem crystal rod that obtains is cut off grain, convex during grinding and polishing becomes then, and make the planar base surface of C axle perpendicular to jewel.Pass through the star processing again, the star condition is under oxygen supply condition, finishes through 38 hours in 1100 ℃～1400 ℃.The result of star processing makes the oxycompound of titanium separate out in jewel with the needle crystal thing of certain orientation, and the refraction that they have under reflection source is interfered and the diffraction phenomenon is the origin cause of formation of jewel starlight.Six star line scintillations will on the jewel sphere, occur at last, make the bright star of whole jewel, under direct sunlight and light, have dazzling brilliant beautiful starlight effect, become the flawless finish jewel just like flicker.
Claims (2)
1, a kind of method of making the aluminum oxide asteria comprises that growth and star turn usefulness into, and growth is in the asteria crystal with the growth of high admixture guided mode method, admixture 0.1-0.4% (weight ratio) Tio
2The crystalline direction of growth is＜0001 〉, take place on the melt films of crystalline growth effect die tip, the crystalline size is limited by the edge of die tip, the invention is characterized in that it is to finish under with respect to the die tip turning effort at crystal that crystalline draws, the crystal that grows is at oxygen supply condition, finishes the star process through 38 hours in 1100-1400 ℃.
2, according to the method for the described manufacturing asteria of claim 1, it is characterized in that it is to finish under with respect to the die tip turning effort at crystal that crystalline draws, the crystalline rotating speed is at 1-60 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109706 CN1015651B (en) | 1990-12-08 | 1990-12-08 | Process for preparation of star-light gem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109706 CN1015651B (en) | 1990-12-08 | 1990-12-08 | Process for preparation of star-light gem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1050912A CN1050912A (en) | 1991-04-24 |
| CN1015651B true CN1015651B (en) | 1992-02-26 |
Family
ID=4881554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90109706 Expired CN1015651B (en) | 1990-12-08 | 1990-12-08 | Process for preparation of star-light gem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015651B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098940C (en) * | 1997-04-11 | 2003-01-15 | 帝人株式会社 | Fiber having optical interference function and its use |
| CN100398703C (en) * | 2006-05-22 | 2008-07-02 | 天津市硅酸盐研究所 | Method for growing high-performance tube type sapphire |
| CN100419133C (en) * | 2006-05-22 | 2008-09-17 | 天津市硅酸盐研究所 | Method for growing high-performance tube type sapphire back cover |
-
1990
- 1990-12-08 CN CN 90109706 patent/CN1015651B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098940C (en) * | 1997-04-11 | 2003-01-15 | 帝人株式会社 | Fiber having optical interference function and its use |
| CN100398703C (en) * | 2006-05-22 | 2008-07-02 | 天津市硅酸盐研究所 | Method for growing high-performance tube type sapphire |
| CN100419133C (en) * | 2006-05-22 | 2008-09-17 | 天津市硅酸盐研究所 | Method for growing high-performance tube type sapphire back cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1050912A (en) | 1991-04-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |