CN1919763A - Glass optical fibre capable of fusing with quartz glass optical fibre and manufacture method thereof - Google Patents
Glass optical fibre capable of fusing with quartz glass optical fibre and manufacture method thereof Download PDFInfo
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- CN1919763A CN1919763A CN 200510093038 CN200510093038A CN1919763A CN 1919763 A CN1919763 A CN 1919763A CN 200510093038 CN200510093038 CN 200510093038 CN 200510093038 A CN200510093038 A CN 200510093038A CN 1919763 A CN1919763 A CN 1919763A
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Abstract
The invention discloses a glass optical fiber and preparing method to fuse with quartz glass optical fiber, which is characterized by the following: forming one phase of low-fusing point glass with rare earth element; dispersing in the high-fusing point silicate glass phase; condensing rare earth element in the low-fusing point glass phase due to most rare earth element gathering at low-fusing point glass phase, making the continuous phase as silicate glass with rich silica with the fusing point approaching quarts glass's.
Description
Technical field:
The present invention relates to glass optical fiber, relate in particular to a kind of can with the glass optical fiber and the method for making thereof of the doped rare earth element of quartz glass optical fibre welding.
Background technology:
Glass optical fiber become optical communication indispensable assembly, present business-like light communication system is based on quartzy (silicon oxide) glass optical fiber, optical signal transmits a segment distance in quartz glass optical fibre after, strength of signal is loss gradually, therefore just needs image intensifer (optical amplifier) to be installed to strengthen light signal strength again every a segment distance.
Present business-like image intensifer is to mix in the quartz glass optical fibre material based on the rare earth element of Erbium trioxide, this optical amplifier fiber is fused to quartz glass optical fibre, generally speaking, this image intensifer based on the er-doped silica glass, need the length of 20m just can reach the amplification effect of commercial formats approximately, but because two kinds of optical fiber all are to be main material with silica glass, when the quartz glass optical fibre that welding image intensifer optical fiber and general optical communication are used, because both melting temperatures are almost consistent with light refractive index, so when using existing business-like optical fiber splicer to carry out welding, technical having no problem can reach low optical loss and the low target that reflects.
Because silica glass is the structure with silicon-oxygen tetrahedron is that main body constitutes, and the quantity that this structure causes Doped Rare Earth element (for example erbium ion) otherwise causes the glass crystallization easily and loses light transmission greatly below 3mol%.In view of this, so exploitation after deliberation, phosphate glass becomes the material of the quartz glass optical fibre amplifier of potential replacement er-doped; Because the composition structure of phosphate glass is loose than quartz glass structure, that is to say, the material person's character of phosphate glass is can hold more rare earth ion to enter in its glass construction, existing at present many pieces of documents and patent are addressed the chemical constitution and the manufacture method of the phosphate glass of high rear-earth-doped amount, see also the pertinent literature data, do not give unnecessary details at this.
Because phosphoric acid salt has high rare earth ion doped ability (more than the 10mol%), and smelting temperature (about 600 ℃ to 1400 ℃ between) is more much lower than silica glass (1700 ℃ to 2000 ℃ between), so, on light amplification intensity or production cost, all have advantages for development than image intensifer based on silica glass.The advantage of relevant phosphate glass image intensifer sees also pertinent literature, does not give unnecessary details at this.
Although the phosphate glass image intensifer has the performance and the potentiality of above-mentioned excellence, but the image intensifer optical fiber by its made still must just can be applied with existing light communication system integration, that is to say, the necessary energy of the quartz glass optical fibre welding that phosphate glass optical fiber and general communication are used just can become the image intensifer with practical ability.But, because the fusing point of phosphate glass optical fiber is far below the fusing point of quartz glass optical fibre, when carrying out welding, optical fiber splicer is a fusion temp as if the melting temperature with quartz glass optical fibre, though the heat weldable quartz glass optical fibre that its moment produced, but for phosphate glass, this temperature is too high, phosphate glass optical fiber can be melted distortion even loss; If the temperature of heat sealing machine is adjusted to the fusion temp of low-melting phosphate glass optical fiber, then this temperature is not enough to the welding quartz glass optical fibre, therefore still both can't be welded together.Therefore, which kind of service temperature all can't be with dystectic silica glass and two kinds of fused fiber splices of low-melting phosphate glass.
Another low melting glass is exactly a borate glass, and identical situation has also taken place.Present also someone develops the image intensifer based on the rare-earth-ion-doped borate glass of low melting point, though do not obtain the achievement as rare-earth-ion-doped phosphate glass as yet, but in the future when low melting point borate glass optical fiber will be with the quartz glass optical fibre welding, can face the otherness of two kinds of high low melting point temperatures between glass too, so how to solve the welding problem between low melting glass and high-melting-point quartz glass optical fibre, just become the business-like bottleneck of low melting glass.
In view of this, several methods that can solve high-melting-point quartz glass optical fibre and low melting glass fused fiber splice problem have been proposed recently, for example:
Corning Incorporated (Corning Lasertron) at first proposes the method that a kind of welding has two kinds of glass optical fibers of 800 ℃ of fusing points and 1800 ℃ of fusing points respectively in calendar year 2001, and its method mainly is to use CO
2Laser, earlier low melting glass is covered with screen during heating, make most laser concentration of energy arrive the welding end face of high melting point glass optical fiber, when the high melting point glass fiber end face is subjected to Gao Re and melts, the heat of understanding some is transmitted to the low melting glass fiber end face, the heat that utilizes this asymmetric type of heating to obtain melts low melting glass optical fiber, and this moment is again with two fusion end joined.The shortcoming of this method is that (1) must use CO
2Laser, and quartz glass optical fibre is for CO
2The energy absorption of the radiation wavelength of laser is limited, and energy utilization benefit is not good, (2) this CO
2The non-specification product of welding mode involve great expense, and (3) are heating high-melting-point end earlier, and via heat and the hot-fluid of thermodiffusion to the wayward input of mode of low melting point end, reliability is relatively poor again.
Japanese trader's Asahi Glass company (Asahi Glass Co.) also proposes the method for similar Corning Incorporated in calendar year 2001, but the mode with the discharge heating provides thermal source, the electrode that is about to point discharge places apart from the high melting point glass fiber end face distance more than the 1m at least, at this moment the end face owing to high-melting-point and two kinds of glass optical fibers of low melting point is close together with the mechanical forces push-tight earlier, so when hot spot be set in be positioned at high melting point glass optical fiber and the distance two optical fiber contact surface at least more than the 1m apart from the time, heat reaches can be with the high melting point glass melt temperature time, its thermal conduction to the heat of low melting glass fiber end face also just with its thawing, just reach high low temperature fusing point glass and be melted respectively and engage by asymmetric type of heating.The existing effect of this design improved aforementioned use CO
2The shortcoming of laser, and can use present business-like optical fiber splicer, but shortcoming is, it must find out the position of heating electrode with the method for trial and error, and because hot spot is not on the welding end face, so by the optical fiber surface easy deformation of hot spot to two optical fiber point of contact or form cambered surface, destroy the original cylindrical surface of optical fiber.
Secondly, also there is the inventor to make its mode that becomes high melting point glass, makes the fusing point of the phosphate glass optical fiber that makes to reach temperature with the smooth welding of quartz glass optical fibre by adjusting phosphate glass chemical optical fibre composition.But this mode has but been sacrificed a significant advantage of phosphate glass: low melting point melting institute deutero-advantage.
Summary of the invention:
Main purpose of the present invention is to overcome the above-mentioned defective that exists in the prior art, and a kind of glass optical fibre capable of fusing with quartz glass optical fibre and manufacture method thereof is provided.
In order to achieve the above object, the present invention adopts following technical scheme:
The invention provides a kind of method for making of glass optical fibre capable of fusing with quartz glass optical fibre and, its step includes at least a) purchases the silicate glass material that contains rare earth element; B) silicate glass material is given fusion, required core and the cladding of preparation composition optical fiber; C) core heating is made it produce phase separation, contain low melting glass disperse phase and the high melting point glass external phase of rare earth element in order to formation, the fusing point of this high melting point glass external phase is close with the silica glass fusing point; D) core and the cladding after phase-splitting is handled reeled off raw silk from cocoons, just acquisition can with the glass optical fiber of the doped rare earth element of quartz glass optical fibre welding.
In addition, the present invention also provides the method for making of another kind of glass optical fibre capable of fusing with quartz glass optical fibre and, and its step includes at least a) purchases the silicate glass material that contains rare earth element; B) silicate glass material is given fusion, required core and the cladding of preparation composition optical fiber; C) core is reeled off raw silk from cocoons into optical fiber with cladding; D) make it produce phase separation the optical fiber heating, the low melting glass disperse phase and the high melting point glass external phase that contain rare earth element in order to formation, the fusing point of this high melting point glass external phase is close with the silica glass fusing point, just obtain can with the glass optical fiber of the doped rare earth element of quartz glass optical fibre welding.
In addition, the present invention further provides a kind of glass optical fibre capable of fusing with quartz glass optical fibre and, it is the phase-splitting glass optical fiber of being made by the glass material that contains rare earth element, include high melting point glass and be scattered in some low melting glasses in this high melting point glass, the fusing point of this high melting point glass is close with the silica glass fusing point.
Owing to adopted technique scheme, glass optical fibre capable of fusing with quartz glass optical fibre and manufacture method thereof provided by the present invention, its made glass optical fiber not only can be directly and the quartz glass optical fibre welding, and, can avoid problems such as the height temperature difference is different, refractive index difference, have practical value.
Description of drawings:
Fig. 1 is a making schema of the present invention;
Fig. 2 is the welding synoptic diagram of made glass optical fiber of the present invention and quartz glass optical fibre;
Fig. 3 is smelting temperature figure of the present invention;
Fig. 4 is doped rare earth element Eu among the present invention
2O
3after heat treatment reel off raw silk from cocoons the again wire phase-splitting of gained of silicophosphate phase-splitting glass use the microstructure of electron microscope observation gained;
Fig. 5 is doped rare earth element Er among the present invention
2O
3The spherical phase-splitting of gained after heat treatment of silicophosphate phase-splitting glass use the microstructure of electron microscope observation gained;
Fig. 6 is doped rare earth element Er among the present invention
2O
3The wire phase-splitting of gained after heat treatment of silicophosphate phase-splitting glass use the microstructure of electron microscope observation gained;
Fig. 7 is doped rare earth element Er among the present invention
2O
3The spherical phase-splitting of gained after heat treatment of borosilicate phase-splitting glass use the microstructure of electron microscope observation gained;
Fig. 8 is doped rare earth element Er among the present invention
2O
3Borosilicate phase-splitting glass after heat treatment use glass chemistry composition after energy spectrometer scans pickling;
Fig. 9 is doped rare earth element Er among the present invention
2O
3Borosilicate phase-splitting glass optical fiber core after heat treatment amplify 150 times of viewed particulate state phase-splittings;
Figure 10 is doped rare earth element Er among the present invention
2O
3Borosilicate phase-splitting glass optical fiber core after heat treatment amplify 600 times of viewed particulate state phase-splittings;
Figure 11 is doped rare earth element Er among the present invention
2O
3Borosilicate phase-splitting glass optical fiber core after heat treatment amplify 3000 times of viewed particulate state phase-splittings;
Figure 12 is doped rare earth element Er among the present invention
2O
3Borosilicate phase-splitting glass optical fiber core after heat treatment use glass chemistry composition after energy spectrometer scans pickling.
Embodiment:
As Fig. 1 and shown in Figure 2, the method for making of the glass optical fiber of a preferred embodiment of the present invention includes following steps:
First step of the present invention is to purchase the silicate glass material that contains rare earth element earlier: the silicate glass material that contains rare earth element is borosilicate glass or phosphosilicate glass, and the composition scope of borosilicate glass is:
RE
2O
3-xB
2O
3-yP
2O
5-zSiO
2-mR
2O-nAl
2O
3
0＜x＜35，0＜y＜50，35＜z＜70，0＜m＜30，0＜n＜10
Wherein symbol RE represents rare earth ion (Rare earth elements), every coefficient (x, y, z, m in the above-mentioned formula, n) should meet following condition: 0＜x＜35,0＜y＜50,35＜z＜70,0＜m＜30,0＜n＜10, and: x+y＜45, m+n＜25 are as 8Na
2O-31B
2O
3-60SiO
2-1Er
2O
3With 8Na
2O-30B
2O
3-60SiO
2-1Al
2O
3-1Er
2O
3, and the phosphosilicate glass main component is 40SiO
2-35P
2O
5-15Na
2O-6Al
2O
3-xEu
2O
3
The present invention's second step is that silicate glass material is given fusion, required core and the cladding of preparation composition optical fiber: the glass smelting temperature is: 1100-1670 ℃, prepare the method for forming required core of optical fiber and cladding and can use (1) double crucible method (Double crucible Method): directly be made into optical fiber by fused core glass and cladding glass with double crucible method; Or (2) optical wand method (Preform method): the fused glass cream forms the Glass tubing (can not need phase-splitting) that glass stick (but composition of phase-splitting) that core uses and covering are used in the quick cooling mode, or with chemical meteorology deposition method (MCVD, OVD, VAD, PlasmaCVD etc.) prepared optical wand material.
Third step of the present invention is to make it produce phase separation the core heating, the low melting glass disperse phase (phosphate-rich phase or borate-rich is phase) and high melting point glass external phase (silica-rich phase) that contain rare earth element in order to formation: the thermal treatment temp interval of glass phase-splitting is: 500-720 ℃, heat treatment time can be that glass by molten state phase-splitting takes place simultaneously in quenching process, or be chilled to additional heat may after the room temperature, can reach 100 hours heat-up time, and the temperature curve of glass melting as shown in Figure 3.Like this, the low melting glass disperse phase is spherical or the wire phase-splitting, and the fusing point of high melting point glass external phase is close with the silica glass fusing point.
At last, core and cladding after phase-splitting being handled are reeled off raw silk from cocoons again, just acquisition can with the glass optical fiber of the doped rare earth element of quartz glass optical fibre welding.
Aforementioned glass optical fiber can directly carry out the displaing microstructure observing analysis of glass phase-splitting with the scanning type electron microscope:
As shown in Figure 4, the microstructure through the HCl of 0.1N uses scanning type electron microscope (SEM, JOEL 5600) observation post to get in 25 ℃ of following pickling after 1 hour shows doped rare earth element Eu
2O
3after heat treatment reel off raw silk from cocoons the again wire phase-splitting of gained of silicophosphate phase-splitting glass, observe easily for making phase separation structure, therefore reel off raw silk from cocoons, so the wire phase-splitting of some is able to towards spherical minute phase change with slow speed; If then can form the long wire phase-splitting of nano-scale with quick cooling to reel off raw silk from cocoons fast.
Fig. 5 shows doped rare earth element Er
2O
3Silicophosphate phase-splitting glass after heat treatment present the microstructure of spherical phase-splitting.Fig. 6 shows doped rare earth element Er
2O
3Silicophosphate phase-splitting glass after heat treatment represent the microstructure of wire phase-splitting.Phase-splitting glass structure among Fig. 5 and Fig. 6 has all arrived time micron (sub-micrometer) and nanometer (nano meter) yardstick, when the yardstick of glass phase-splitting more little, during more near nano-scale, because the optical loss that scattering of light caused that phase-splitting caused just almost can be ignored.
As shown in Figure 7, show doped rare earth element Er
2O
3The spherical phase-splitting microstructure that after heat treatment presented of borosilicate phase-splitting glass, use scanning type electron microscope (SEM, JOEL 5600) with phase-splitting glass through the HCl of 0.1N in 25 ℃ of following pickling after 6 hours, use energy spectrometer (Energy dispersive X-ray analysis, EDX) scan glass chemistry composition after the pickling, the result shows that it is 95wt%SiO that low melting glass is removed the remaining external phase glass in back by pickling
2, 2wt%Na
2O and 3wt%B
2O
3
Fig. 9 to Figure 12 is for using glass composition Na
2O-30B
2O
3-60SiO
2-1Al
2O
3-1Er
2O
3The electron microscopic mirror microstructure photo in phase-splitting glass optical fiber (core) cross section of made.Promptly with electron microscope observation, enlargement ratio is respectively 150x, 600x, 3000x to core behind 560 ℃-640 ℃ thermal treatment number minute.By can obviously observing on the fiber-optic core material cross section among Fig. 9 (150x) size distribution is arranged, these particles are after 600x amplifies, can in Figure 10, obviously observe granular size and be about 0.5mm between 15mm, can find that former spherical size distribution is in external phase glass if again multiplying power is amplified to the 3000x observation, if external phase glass is carried out energy spectrum analysis, white box line zone as shown in Figure 11 records among the spectral distribution figure that the results are shown in Figure 12, and Chemical Composition is about 10.0Na
2O-6.2Al
2O
3-82.8SiO
2, because Al
2O
3With SiO
2Two compositions be the molal weight per-cent that adds up to of high melting compound and both up to more than 90%, prove that this chemical composition is not only for the external phase glass after the phase-splitting and be high melting point glass; The composition of granular glass is to contain Er after the phase-splitting
2O
3Borate be main, the low melting glass that contains rare earth ion described in provable thus the present invention intersperses among mutually based on the glass phase separation structure in the continuous glassy phase of high-melting-point silicon oxide and can reach really.
In addition, as shown in Figure 1, after in the glass optical fiber method for making of the present invention silicate glass material being prepared into core and cladding, also can be earlier with core with heat-treat the generation phase separation again after cladding is reeled off raw silk from cocoons into optical fiber, and obtain glass optical fibre capable of fusing with quartz glass optical fibre and.
Secondly, silicate glass material of the present invention also can add an amount of alkalimetal oxide (R
2O, R=Li, Na, K, Rb, Cs) with alkaline earth metal oxide (R ' O, R '=Mg, Ca, Sr Ba) modifies body (glassmodifier) as glass.
From the above, the present invention contains the alkali phosphosilicate glass and contains alkali borosilicate glass via the glass phase separation doping with rare-earth ions, make rare earth ion diffuse to low-melting phosphate glass and borate glass mutually in, make the interior mutually quartzose composition of high-melting-point silicate glass promote simultaneously, and the formation low melting glass is scattered in the high melting point glass with spherical or wire, be that low melting glass forms disperse phase, high melting point glass forms external phase.The optical fiber made from this phase-splitting glass because the fusing point of external phase glass is near the fusing point of commercial quartz glass optical fibre, so when carrying out fused fiber splice, high melting point glass phase (external phase) can with the smooth welding of dystectic quartz glass optical fibre.
In other words, the silicate glass material that the present invention will be mixed with rare earth ion adds the thermogenesis phase separation, form low melting glass phase (being rich in phosphoric acid salt and rare earth ion) and (be rich in the silica glass phase mutually with high melting point glass, the even compound-glass optical fiber of SiO2＞90mol%), when itself and quartz glass optical fibre welding, because it is main Chemical Composition that the two ends of welding are silica glass, its fusing point is approaching, light refractive index is also very approaching, high low melting point difference and the just puzzlement of refractive index difference have been avoided, therefore, can use business-like at present optical fiber splicer, can carry out weld job, need not change production operation flow process and processing units etc. with normal step, therefore compared with prior art, the present invention has progressive and practical value really.
To sum up institute is old, glass optical fibre capable of fusing with quartz glass optical fibre and manufacture method thereof provided by the present invention, its made glass optical fiber not only can be directly and the quartz glass optical fibre welding, and, can avoid problems such as the height temperature difference is different, refractive index difference, have practical value.
Claims (10)
1, a kind of method for making of glass optical fibre capable of fusing with quartz glass optical fibre and is characterized in that, its step includes at least:
A) purchase the silicate glass material that contains rare earth element;
B) silicate glass material is given fusion, required core and the cladding of preparation composition optical fiber;
C) core heating is made it produce phase separation, contain the low melting glass disperse phase and the high melting point glass external phase of rare earth element in order to formation, the fusing point of this high melting point glass external phase is close with the silica glass fusing point;
D) core and cladding after the phase-splitting processing are reeled off raw silk from cocoons, just obtained glass optical fibre capable of fusing with quartz glass optical fibre and.
2, a kind of method for making of glass optical fibre capable of fusing with quartz glass optical fibre and is characterized in that, its step includes at least:
A) purchase the silicate glass material that contains rare earth element;
B) silicate glass material is given fusion, required core and the cladding of preparation composition optical fiber;
C) core is reeled off raw silk from cocoons into optical fiber with cladding;
D) make it produce phase separation the optical fiber heating, the low melting glass disperse phase and the high melting point glass external phase that contain rare earth element in order to formation, the fusing point of this high melting point glass external phase is close with the silica glass fusing point, just obtains glass optical fibre capable of fusing with quartz glass optical fibre and.
According to the method for making of claim 1 or 2 described glass optical fibers, it is characterized in that 3, the wherein said silicate glass material that contains rare earth element is borosilicate glass or phosphosilicate glass.
According to the method for making of the described glass optical fiber of claim 3, it is characterized in that 4, the main component of wherein said borosilicate glass material is
RE
2O
3-xB
2O
3-yP
2O
5-zSiO
2-mR
2O-nAl
2O
3, wherein symbol RE represents rare earth ion (RE=Rare earth elements), every coefficient (x, y in the above-mentioned formula, z, m n) should meet following condition: 0＜x＜35,0＜y＜50,35＜z＜70,0＜m＜30,0＜n＜10 and x+y＜45, m+n＜25.
5, according to the method for making of claim 1 or 2 described glass optical fibers, it is characterized in that, b wherein) in the step, the required core of optical fiber is formed in described silicate glass material preparation and the method for cladding is directly to make core glass and cladding glass pipe by molten glass material with double crucible method (Double crucible Method).
6, according to the method for making of the described glass optical fiber of claim 1, it is characterized in that, c wherein) in the step, with core in 530 ℃～650 ℃ insulation a few hours to a couple of days, but make its phase-splitting become high molten glassy phase (silica-rich phase) and low-melting-point glass (phosphate-rich phase or borate-rich phase) mutually.
7, according to the method for making of claim 1 or 2 described glass optical fibers, it is characterized in that, wherein a) in the step, can add an amount of alkalimetal oxide in the silicate glass material and alkaline earth metal oxide is modified body as glass.
8, a kind of glass optical fibre capable of fusing with quartz glass optical fibre and, it is characterized in that, it is to contain the phase-splitting glass optical fiber that the glass material of rare earth element is made, include high melting point glass and be scattered in some low melting glasses in this high melting point glass, the fusing point of this high melting point glass is close with the silica glass fusing point.
9, according to the described glass optical fiber of claim 8, it is characterized in that it is made with silicate glass material.
According to the described glass optical fiber of claim 9, it is characterized in that 10, wherein said silicate glass material is borosilicate glass or phosphosilicate glass.
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| CN 200510093038 CN1919763A (en) | 2005-08-25 | 2005-08-25 | Glass optical fibre capable of fusing with quartz glass optical fibre and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510093038 CN1919763A (en) | 2005-08-25 | 2005-08-25 | Glass optical fibre capable of fusing with quartz glass optical fibre and manufacture method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159403A (en) * | 2013-03-22 | 2013-06-19 | 上海大学 | Method for designing and manufacturing minuteness suction tubes by hollow-center optical fibers |
| CN103951267A (en) * | 2013-11-19 | 2014-07-30 | 山东海富光子科技股份有限公司 | Silicate full-glass optical fiber for high-power optical fiber laser |
| CN116040937A (en) * | 2021-10-28 | 2023-05-02 | 荣耀终端有限公司 | Phase-separated glass, reinforced glass, preparation method of phase-separated glass, shell of electronic equipment, display screen of electronic equipment and electronic equipment |
-
2005
- 2005-08-25 CN CN 200510093038 patent/CN1919763A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159403A (en) * | 2013-03-22 | 2013-06-19 | 上海大学 | Method for designing and manufacturing minuteness suction tubes by hollow-center optical fibers |
| CN103951267A (en) * | 2013-11-19 | 2014-07-30 | 山东海富光子科技股份有限公司 | Silicate full-glass optical fiber for high-power optical fiber laser |
| CN103951267B (en) * | 2013-11-19 | 2018-01-30 | 山东海富光子科技股份有限公司 | Silicate all-glass fiber for high-capacity optical fiber laser |
| CN116040937A (en) * | 2021-10-28 | 2023-05-02 | 荣耀终端有限公司 | Phase-separated glass, reinforced glass, preparation method of phase-separated glass, shell of electronic equipment, display screen of electronic equipment and electronic equipment |
| WO2023071539A1 (en) * | 2021-10-28 | 2023-05-04 | 荣耀终端有限公司 | Phase-separated glass and tampered glass and preparation method therefor, housing of electronic device, display screen of electronic device, and electronic device |
| CN116040937B (en) * | 2021-10-28 | 2024-04-19 | 荣耀终端有限公司 | Phase-separated glass, reinforced glass, preparation method of phase-separated glass, shell of electronic equipment, display screen of electronic equipment and electronic equipment |
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