CN1362384A - Synthetic saphire and its production process - Google Patents
Synthetic saphire and its production process Download PDFInfo
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- CN1362384A CN1362384A CN 02109978 CN02109978A CN1362384A CN 1362384 A CN1362384 A CN 1362384A CN 02109978 CN02109978 CN 02109978 CN 02109978 A CN02109978 A CN 02109978A CN 1362384 A CN1362384 A CN 1362384A
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Abstract
The present invention relates to a synthetic saphire and its production process. It contains (by weight portion) Al2O3 95-99.98, iron oxide 0.001-3.0 and TiO2 0.0005-1.0, and its production process includes the steps of colouring agent preparation, powder material preparation and saphire growth, and its colour covering layer thickness is greater than 2 mm.
Description
(1) technical field: the present invention relates to a kind of synthetic gem, specifically, the present invention relates to a kind of synthetic sapphire, simultaneously, the invention still further relates to a kind of production technique of synthetic sapphire.
(2) background technology: known synthetic sapphire, to make with flame melt method, its made sapphire color is not attractive in appearance, do not satisfy user's needs, the serious yield rate of explosion is low during growth, and material use efficiency is low, uniform coloring is poor, and the color cladding thickness can't use less than 1mm.
(3) technology contents: the objective of the invention is to overcome the deficiency of above-mentioned prior art and provide that a kind of color is attractive in appearance, the explosion of when growth is few, yield rate height, material use efficiency height, the synthetic sapphire that result of use is good.
Another object of the present invention provides a kind of production technique of synthetic sapphire.
Purpose of the present invention can reach by following measure: a kind of synthetic sapphire is characterized in that it includes (weight portion) Al
2O
395-99.98, the oxide 0.001-3.0 of iron, TiO
20.0005-1.0.
In order further to realize purpose of the present invention, described a kind of synthetic sapphire also includes MnO, CoO, NiO, V
2O
5, CuO, can be wherein one or both and two or more mixtures.
A kind of synthetic sapphire of the present invention, its production technology may further comprise the steps: be the oxide of iron and the colourant solution of titanyl compound with adding active component in the ammonia-alum of purity 〉=99.99%, in being 200 ℃-300 ℃ dehydration furnace, temperature sloughs the water of 40%-60%, it is 1010 ℃-1100 ℃ roaster roasting 2-4 hour that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering 3-10 of jewel sintering machine hour, the oxyhydrogen flame temperature reaches 2030 ℃-2050 ℃, makes finished product.
A kind of synthetic sapphire of the present invention, its production technology may further comprise the steps: add colourant solution in the ammonia-alum with purity 〉=99.99%, the active component of this colourant solution is except the oxide and titanyl compound of iron, the oxide that also includes manganese, the oxide of cobalt, the oxide of nickel, the oxide of vanadium, in the oxide of copper one or both and two or more mixtures, in being 200 ℃-300 ℃ dehydration furnace, temperature sloughs afterwards the water of 40%-60%, it is 1010 ℃-1100 ℃ roaster roasting 2-4 hour that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering 3-10 of jewel sintering machine hour, the oxyhydrogen flame temperature reaches 2030 ℃-2050 ℃, makes finished product.
The present invention can produce following positively effect compared with the prior art: color is attractive in appearance, during growth explosion few, the yield rate height, the material use efficiency height, uniform coloring, the color cladding thickness is greater than 2mm, result of use is good.
The present invention meets standard GB/T16553-1996 through check, and its assay is as follows:
| Interventions Requested | Standard code | Assay |
| Color | See 5.4.3.5 bar among the GB/T16553-1996 | Blue (indigo) |
| Gloss | Vitreous luster | Vitreous luster |
| Mohs hardness | 9 | 9 |
| Polychromatism | See 5.4.3.5 bar among the GB/T16553-1996 | Dichroism is strong: indigo plant, and turquoise |
| Density | 4.00(+0.10，-0.05)g/cm | 3.99 |
| Specific refractory power | 1.762-1.770(+0.009，-0.005) | 1.762-1.772 |
| Degree of birefringence | 0.008-0.010 | 0.008 |
| Amplify and check | See 5.4.3.5 bar among the GB/T16553-1996 | Arc growth line |
| Round end diameter D (mm) | ≥17 | 18 |
| Partly plough brilliant length L (mm) | ≥50 | 55 |
| Blue cladding thickness (mm) | ≥2 | ＞2 |
| Colour band (bar) | ≤3 | Do not have |
| Crackle (bar) | Article 1, (radical length is no more than 1/2D) | Do not have |
| Bubble, not fusant, molten knurl | Except that these three defectives, utilization ratio is more than 70% | There are not these three defective utilization ratios more than 90% |
(4) embodiment:
Embodiment 1: prepare earlier colourant solution, iron ammonium sulfate, ammonium titanium fluoride are mixed, making active ingredient FeO wherein is 0.5g, TiO
2Be 0.1g, to add the 15ml colourant solution in the ammonia-alum of the 900g of purity 〉=99.99% then, slough 50% water in temperature is 250 ℃ dehydration furnace, it is 1050 ℃ roaster roasting 3 hours that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering of jewel sintering machine 7 hours, the oxyhydrogen flame temperature reaches 2030 ℃, makes finished product.
Embodiment 2: prepare earlier colourant solution, ammonium ferric sulfate, ammonium titanium fluoride, ammonium metavanadate, manganese sulfate, cobaltous sulfate, nickelous sulfate, copper sulphate are mixed, make active ingredient Fe wherein
2O
3Be 0.01g, TiO
2For 0.005g, MnO are that 0.001g, CoO are that 0.001g, NiO are 0.001g, V
2O
5For 0.001g, CuO are 0.001g, the 25ml colourant solution will be added then in the ammonia-alum of the 1000g of purity 〉=99.99%, in being 200 ℃ dehydration furnace, temperature sloughs 40% water, it is 1010 ℃ roaster roasting 2 hours that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering of jewel sintering machine 3 hours, the oxyhydrogen flame temperature reaches 2030 ℃, makes finished product.
Embodiment 3: prepare earlier colourant solution, iron ammonium sulfate, ammonium titanium fluoride, ammonium metavanadate are mixed, making active ingredient FeO wherein is 0.04g, TiO
2Be 0.001g, V
2O
5Be 0.02g, to add the 10ml colourant solution in the ammonia-alum of the 1100g of purity 〉=99.99% then, slough 45% water in temperature is 220 ℃ dehydration furnace, it is 1030 ℃ roaster roasting 2.5 hours that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering of jewel sintering machine 4 hours, the oxyhydrogen flame temperature reaches 2040 ℃, makes finished product.
Embodiment 4: prepare earlier colourant solution, with ammonium ferric sulfate, ammonium titanium fluoride, ammonium metavanadate, manganese sulfate, mixing, make active ingredient Fe wherein
2O
3Be 0.1g, TiO
2Be 0.8g, MnO is 0.002g, V
2O
5Be 0.002g, to add the 20ml colourant solution in the ammonia-alum of the 1100g of purity 〉=99.99% then, slough 55% water in temperature is 270 ℃ dehydration furnace, it is 1070 ℃ roaster roasting 3.5 hours that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering of jewel sintering machine 9 hours, the oxyhydrogen flame temperature reaches 2040 ℃, makes finished product.
Embodiment 5: prepare earlier colourant solution, iron ammonium sulfate, ammonium titanium fluoride, cobaltous sulfate, nickelous sulfate, copper sulphate are mixed, making active ingredient FeO wherein is 3.0g, TiO
2For 1.0g, CoO are that 0.002g, NiO are that 0.002g, CuO are 0.002g, the 5ml colourant solution will be added then in the ammonia-alum of the 1100g of purity 〉=99.99%, in being 300 ℃ dehydration furnace, temperature sloughs 60% water, it is 1100 ℃ roaster roasting 4 hours that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering of jewel sintering machine 10 hours, the oxyhydrogen flame temperature reaches 2050 ℃, makes finished product.
Claims (5)
1, a kind of synthetic sapphire is characterized in that it includes (weight portion) Al
2O
395-99.98, the oxide 0.001-3.0 of iron, TiO
20.0005-1.0.
2, a kind of synthetic sapphire according to claim 1 is characterized in that (weight portion) Al
2O
396-99.96, the oxide 0.004-2.0 of iron, TiO
20.001-0.8.
3, a kind of synthetic sapphire according to claim 1 and 2 is characterized in that it also includes MnO, CoO, NiO, V
2O
5, CuO, can be wherein one or both and two or more mixtures.
4, the production technology of claim 1 or 2 described a kind of synthetic sapphires, it is characterized in that it may further comprise the steps: be the oxide of iron and the colourant solution of titanyl compound with adding active component in the ammonia-alum of purity 〉=99.99%, in being 200 ℃-300 ℃ dehydration furnace, temperature sloughs the water of 40%-60%, it is 1010 ℃-1100 ℃ roaster roasting 2-4 hour that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering 3-10 of jewel sintering machine hour, the oxyhydrogen flame temperature reaches 2030 ℃-2050 ℃, makes finished product.
5, the production technology of the described a kind of synthetic sapphire of claim 3, it is characterized in that it may further comprise the steps: add colourant solution in the ammonia-alum with purity 〉=99.99%, the active component of this colourant solution is except the oxide and titanyl compound of iron, the oxide that also includes manganese, the oxide of cobalt, the oxide of nickel, the oxide of vanadium, in the oxide of copper one or both and two or more mixtures, in being 200 ℃-300 ℃ dehydration furnace, temperature sloughs afterwards the water of 40%-60%, it is 1010 ℃-1100 ℃ roaster roasting 2-4 hour that dehydrate is put into temperature, make powder, will make γ-Al after the powder screening
2O
3, at last with the γ-Al that makes
2O
3Put into the directed sintering 3-10 of jewel sintering machine hour, the oxyhydrogen flame temperature reaches 2030 ℃-2050 ℃, makes finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109978 CN1362384A (en) | 2002-01-11 | 2002-01-11 | Synthetic saphire and its production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109978 CN1362384A (en) | 2002-01-11 | 2002-01-11 | Synthetic saphire and its production process |
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| Publication Number | Publication Date |
|---|---|
| CN1362384A true CN1362384A (en) | 2002-08-07 |
Family
ID=4740878
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|---|---|---|---|
| CN 02109978 Pending CN1362384A (en) | 2002-01-11 | 2002-01-11 | Synthetic saphire and its production process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913883A (en) * | 2010-08-16 | 2010-12-15 | 烟台大学 | Method for manufacturing alumina-based nano artificial corundum gem powder |
| CN102153116A (en) * | 2011-02-22 | 2011-08-17 | 马庆忠 | Alumina crystalline material and preparation method and application |
| CN102817072A (en) * | 2012-07-30 | 2012-12-12 | 鸿福晶体科技(安徽)有限公司 | Preparation method of doping raw material used for growing gem single crystal through edge-defined film-fed growth method |
| CN103014856A (en) * | 2013-01-10 | 2013-04-03 | 苏州巍迩光电科技有限公司 | Ferric-titanium-doped sapphire wafer and preparation method thereof |
| CN104562182A (en) * | 2015-01-29 | 2015-04-29 | 常州焱晶科技有限公司 | Synthesis method of sapphire crystal |
| CN107495561A (en) * | 2017-06-30 | 2017-12-22 | 秦斌 | One kind synthesis blue light noctilucence diamond and method |
| CN108218415A (en) * | 2018-01-31 | 2018-06-29 | 内蒙古工业大学 | Sapphirine matter ceramics and its synthetic method |
-
2002
- 2002-01-11 CN CN 02109978 patent/CN1362384A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913883A (en) * | 2010-08-16 | 2010-12-15 | 烟台大学 | Method for manufacturing alumina-based nano artificial corundum gem powder |
| CN101913883B (en) * | 2010-08-16 | 2013-12-04 | 烟台大学 | Method for manufacturing alumina-based nano artificial corundum gem powder |
| CN102153116A (en) * | 2011-02-22 | 2011-08-17 | 马庆忠 | Alumina crystalline material and preparation method and application |
| CN102817072A (en) * | 2012-07-30 | 2012-12-12 | 鸿福晶体科技(安徽)有限公司 | Preparation method of doping raw material used for growing gem single crystal through edge-defined film-fed growth method |
| CN102817072B (en) * | 2012-07-30 | 2015-09-09 | 鸿福晶体科技(安徽)有限公司 | A kind of preparation method of the doped raw material for the single crystal growing of EFG technique growth jewel |
| CN103014856A (en) * | 2013-01-10 | 2013-04-03 | 苏州巍迩光电科技有限公司 | Ferric-titanium-doped sapphire wafer and preparation method thereof |
| CN103014856B (en) * | 2013-01-10 | 2015-11-04 | 苏州巍迩光电科技有限公司 | Mix ferrotitanium sapphire wafer and preparation method thereof |
| CN104562182A (en) * | 2015-01-29 | 2015-04-29 | 常州焱晶科技有限公司 | Synthesis method of sapphire crystal |
| CN104562182B (en) * | 2015-01-29 | 2017-04-19 | 常州焱晶科技有限公司 | Synthesis method of sapphire crystal |
| CN107495561A (en) * | 2017-06-30 | 2017-12-22 | 秦斌 | One kind synthesis blue light noctilucence diamond and method |
| CN108218415A (en) * | 2018-01-31 | 2018-06-29 | 内蒙古工业大学 | Sapphirine matter ceramics and its synthetic method |
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