CN110483001A - Silicon carbide optical frames and preparation method thereof - Google Patents
Silicon carbide optical frames and preparation method thereof Download PDFInfo
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- CN110483001A CN110483001A CN201910764369.2A CN201910764369A CN110483001A CN 110483001 A CN110483001 A CN 110483001A CN 201910764369 A CN201910764369 A CN 201910764369A CN 110483001 A CN110483001 A CN 110483001A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0808—Mirrors having a single reflecting layer
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/805—Transparent material
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Abstract
The present invention provides a kind of silicon carbide optical frames and preparation method thereof, the silicon carbide optical frames includes the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, talcum powder, reinforcing agent and ultraviolet absorbing agent, wherein, the summation of the content of the polymorphous silicon carbide of 6H and the polymorphous silicon carbide of 15R is 70 weight % or more；Weight ratio of the present invention containing the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R is more, then by the control polymorphous partial size ratio of silicon carbide, the sintering characteristic of silicon-carbide particle can be improved, to promote the reaction of obtained silicon carbide-based sintered；In addition, the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R show the polymorphic of stable phase compared with other silicon carbide crystal forms at high temperature, then it can more effectively promote the sintering reaction of silicon carbide-containing particle, to improve its compactness, reduce porosity.
Description
Technical field
The invention belongs to the technical fields of optical frames, and in particular to a kind of silicon carbide optical frames and preparation method thereof.
Background technique
Carbofrax material is due to its higher elasticity modulus, moderate density, lesser thermal expansion coefficient, higher thermally conductive
Coefficient, thermal shock resistance, the dimensional stability of height and isotropic mechanical performance are generally acknowledged at present applied to optics
The optimal material of system, is more and more paid attention to.Although silicon carbide has the above advantages, the production technology of carbofrax material
Also comparative maturity, but silicon carbide has difficulties in terms of optical manufacturing, there is also technologic shortcomings, need at present
Solve this problem.
Summary of the invention
Aiming at the shortcomings in the prior art, the object of the present invention is to provide a kind of silicon carbide optical frames and preparation method thereof.
In order to achieve the above objectives, solution of the invention is:
A kind of silicon carbide optical frames comprising the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, talcum
Powder, reinforcing agent and ultraviolet absorbing agent, wherein the summation of the content of the polymorphous silicon carbide of 6H and the polymorphous silicon carbide of 15R
For 70 weight % or more.
Preferably, which includes the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, cunning
Mountain flour, reinforcing agent and ultraviolet absorbing agent, wherein the content of the polymorphous silicon carbide of 6H and the polymorphous silicon carbide of 15R it is total
With for 70-90 weight %.
Preferably, the partial size of the polymorphous silicon carbide of 6H is 2-4 μm, and the partial size of the polymorphous silicon carbide of 15R is 5-8 μm.
Preferably, plasticizer is phthalic acid two (2- ethyl hexyl) ester.
Preferably, reinforcing agent is one or more of methylhexanoic acid manganese salt, thylhexoic acid yttrium and zirconium caprylate.
Preferably, ultraviolet absorbing agent be one of malonic acid ester type compound and oxanilide class compound with
On.
A kind of preparation method of above-mentioned silicon carbide optical frames comprising following steps:
(1), by the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, talcum powder, reinforcing agent and ultraviolet light
Absorbent mixing, is then sintered, obtains silicon carbide-based sintered；
(2), silicon carbide-based sintered is made annealing treatment, is placed in model and is down to room temperature, obtain silicon carbide optics
Mirror.
Preferably, in step (1), the temperature of sintering is 400-500 DEG C, and the time of sintering is 2-3h.
Preferably, in step (2), the temperature of annealing is 300-400 DEG C.
By adopting the above scheme, the beneficial effects of the present invention are:
Weight ratio of the present invention containing the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R is more, then passes through control carbonization
The partial size ratio of policrystalline silicon type, can improve the sintering characteristic of silicon-carbide particle, to promote obtained silicon carbide-based sintered
Reaction；In addition, the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R are shown surely at high temperature compared with other silicon carbide crystal forms
Determine the polymorphic of phase, then can more effectively promote the sintering reaction of silicon carbide-containing particle, to improve its compactness, reduce
Porosity.
Specific embodiment
The present invention provides a kind of silicon carbide optical frames and preparation method thereof.
The present invention is further illustrated with reference to embodiments.
Embodiment 1:
The silicon carbide optical frames of the present embodiment include the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer,
Talcum powder, reinforcing agent and ultraviolet absorbing agent, wherein the content of the polymorphous silicon carbide of 6H and the polymorphous silicon carbide of 15R
Summation is 70 weight %.
Wherein, the partial size of the polymorphous silicon carbide of 6H is 2 μm, and the partial size of the polymorphous silicon carbide of 15R is 5 μm.
Plasticizer is phthalic acid two (2- ethyl hexyl) ester.
Reinforcing agent is methylhexanoic acid manganese salt.
Ultraviolet absorbing agent is malonic acid ester type compound.
The preparation method of the silicon carbide optical frames of the present embodiment includes the following steps:
(1), by the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, talcum powder, reinforcing agent and ultraviolet light
Absorbent mixing, is then sintered at 400 DEG C, and the time of sintering is 2h, obtains silicon carbide-based sintered；
(2), silicon carbide-based sintered is made annealing treatment, the temperature of annealing is 300 DEG C, is placed in model and is down to room
Temperature, obtains silicon carbide optical frames, and performance data is as shown in table 1.
Embodiment 2:
The silicon carbide optical frames of the present embodiment include the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer,
Talcum powder, reinforcing agent and ultraviolet absorbing agent, wherein the content of the polymorphous silicon carbide of 6H and the polymorphous silicon carbide of 15R
Summation is 75 weight %.
Wherein, the partial size of the polymorphous silicon carbide of 6H is 4 μm, and the partial size of the polymorphous silicon carbide of 15R is 8 μm.
Plasticizer is phthalic acid two (2- ethyl hexyl) ester.
Reinforcing agent is thylhexoic acid yttrium and zirconium caprylate.
Ultraviolet absorbing agent is oxanilide class compound.
The preparation method of the silicon carbide optical frames of the present embodiment includes the following steps:
(1), by the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, talcum powder, reinforcing agent and ultraviolet light
Absorbent mixing, is then sintered at 500 DEG C, and the time of sintering is 3h, obtains silicon carbide-based sintered；
(2), silicon carbide-based sintered is made annealing treatment, the temperature of annealing is 400 DEG C, is placed in model and is down to room
Temperature, obtains silicon carbide optical frames, and performance data is as shown in table 1.
Embodiment 3:
The silicon carbide optical frames of the present embodiment include the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer,
Talcum powder, reinforcing agent and ultraviolet absorbing agent, wherein the content of the polymorphous silicon carbide of 6H and the polymorphous silicon carbide of 15R
Summation is 90 weight %.
Wherein, the partial size of the polymorphous silicon carbide of 6H is 3 μm, and the partial size of the polymorphous silicon carbide of 15R is 7 μm.
Plasticizer is phthalic acid two (2- ethyl hexyl) ester.
Reinforcing agent is the mixture of methylhexanoic acid manganese salt and thylhexoic acid yttrium and zirconium caprylate.
Ultraviolet absorbing agent is the mixture of malonic acid ester type compound and oxanilide class compound.
The preparation method of the silicon carbide optical frames of the present embodiment includes the following steps:
(1), by the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, talcum powder, reinforcing agent and ultraviolet light
Absorbent mixing, is then sintered at 450 DEG C, and the time of sintering is 3h, obtains silicon carbide-based sintered；
(2), silicon carbide-based sintered is made annealing treatment, the temperature of annealing is 380 DEG C, is placed in model and is down to room
Temperature, obtains silicon carbide optical frames, and performance data is as shown in table 1.
Comparative example 1:
The silicon carbide optical frames of this comparative example includes the polymorphous silicon carbide of 2H, the polymorphous silicon carbide of 4H, plasticizer, cunning
Mountain flour, reinforcing agent and ultraviolet absorbing agent, wherein the polymorphous silicon carbide of 2H, the polymorphous silicon carbide of 4H content summation
For 70 weight %.
Wherein, the partial size of the polymorphous silicon carbide of 2H is 2 μm, and the partial size of the polymorphous silicon carbide of 4H is 5 μm.
Plasticizer is phthalic acid two (2- ethyl hexyl) ester.
Reinforcing agent is methylhexanoic acid manganese salt.
Ultraviolet absorbing agent is malonic acid ester type compound.
The preparation method of the silicon carbide optical frames of this comparative example includes the following steps:
(1), by the polymorphous silicon carbide of 2H, the polymorphous silicon carbide of 4H, plasticizer, talcum powder, reinforcing agent and ultraviolet light
Absorbent mixing, is then sintered at 300 DEG C, and the time of sintering is 2h, obtains silicon carbide-based sintered；
(2), silicon carbide-based sintered is made annealing treatment, the temperature of annealing is 300 DEG C, is placed in model and is down to room
Temperature, obtains silicon carbide optical frames, and performance data is as shown in table 1.
Comparative example 2:
The silicon carbide optical frames of this comparative example includes the polymorphous silicon carbide of 2H, the polymorphous silicon carbide of 4H, talcum powder, increasing
Strong agent and ultraviolet absorbing agent, wherein the polymorphous silicon carbide of 2H, the polymorphous silicon carbide of 4H the summation of content be 40 weights
Measure %.
Wherein, the partial size of the polymorphous silicon carbide of 2H is 2 μm, and the partial size of the polymorphous silicon carbide of 4H is 4 μm.
Reinforcing agent is thylhexoic acid yttrium and zirconium caprylate.
Ultraviolet absorbing agent is oxanilide class compound.
The preparation method of the silicon carbide optical frames of this comparative example includes the following steps:
(1), the polymorphous silicon carbide of 2H, the polymorphous silicon carbide of 4H, talcum powder, reinforcing agent and ultraviolet absorbing agent are mixed
It closes, is then sintered at 400 DEG C, the time of sintering is 4h, obtains silicon carbide-based sintered；
(2), silicon carbide-based sintered is made annealing treatment, the temperature of annealing is 200 DEG C, is placed in model and is down to room
Temperature, obtains silicon carbide optical frames, and performance data is as shown in table 1.
The performance test results of table 1 above-described embodiment and comparative example
| Product | Porosity (%) |
| Embodiment 1 | 20 |
| Embodiment 2 | 19 |
| Embodiment 3 | 23 |
| Comparative example 1 | 85 |
| Comparative example 2 | 80 |
As known from Table 1, the silicon carbide optical frames of embodiment is more obvious than the porosity of the silicon carbide optical frames of all comparative examples obtains
To reduction, therefore, compactness is improved.
In short, weight ratio of the present invention containing the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R is more, then pass through control
The polymorphous partial size ratio of preparing silicon carbide, can improve the sintering characteristic of silicon-carbide particle, so that obtained silicon carbide be promoted to burn
The reaction of knot body；In addition, the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R are shown at high temperature compared with other silicon carbide crystal forms
The polymorphic of stable phase is shown, then can more effectively promote the sintering reaction of silicon carbide-containing particle, so that its compactness is improved,
Reduce porosity.
The above-mentioned description to embodiment is that this hair can be understood and used for the ease of those skilled in the art
It is bright.Those skilled in the art obviously readily can make various modifications to these embodiments, and described herein one
As principle be applied in other embodiments, without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments.
Those skilled in the art's principle according to the present invention, not departing from improvement that scope of the invention is made and modification all should be at this
Within the protection scope of invention.
Claims (9)
1. a kind of silicon carbide optical frames, it is characterised in that: the silicon carbide optical frames includes the polymorphous silicon carbide of 6H, 15R more
Silicon carbide, plasticizer, talcum powder, reinforcing agent and the ultraviolet absorbing agent of crystal form, wherein the polymorphous silicon carbide of 6H and
The summation of the content of the polymorphous silicon carbide of 15R is 70 weight % or more.
2. silicon carbide optical frames according to claim 1, it is characterised in that: the silicon carbide optical frames includes 6H polymorphic
Silicon carbide, the polymorphous silicon carbide of 15R, plasticizer, talcum powder, reinforcing agent and ultraviolet absorbing agent, wherein the 6H polycrystalline
The summation of the content of the polymorphous silicon carbide of silicon carbide and 15R of type is 70-90 weight %.
3. silicon carbide optical frames according to claim 1, it is characterised in that: the partial size of the polymorphous silicon carbide of 6H is
2-4 μm, the partial size of the polymorphous silicon carbide of 15R is 5-8 μm.
4. silicon carbide optical frames according to claim 1, it is characterised in that: the plasticizer is two (2- of phthalic acid
Ethyl hexyl) ester.
5. silicon carbide optical frames according to claim 1, it is characterised in that: the reinforcing agent is methylhexanoic acid manganese salt, second
One or more of base caproic acid yttrium and zirconium caprylate.
6. silicon carbide optical frames according to claim 1, it is characterised in that: the ultraviolet absorbing agent is malonic acid esters
One or more of compound and oxanilide class compound.
7. a kind of preparation method of silicon carbide optical frames according to claim 1, it is characterised in that: it includes following step
It is rapid:
(1), by the polymorphous silicon carbide of 6H, the polymorphous silicon carbide of 15R, plasticizer, talcum powder, reinforcing agent and ultraviolet radiation absorption
Agent mixing, is then sintered, obtains silicon carbide-based sintered；
(2), silicon carbide-based sintered is made annealing treatment, is placed in model and is down to room temperature, obtain silicon carbide optical frames.
8. preparation method according to claim 7, it is characterised in that: in step (1), the temperature of the sintering is 400-
500 DEG C, the time of sintering is 2-3h.
9. preparation method according to claim 7, it is characterised in that: in step (2), the temperature of the annealing is 300-
400℃。
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| CN201910764369.2A CN110483001A (en) | 2019-08-19 | 2019-08-19 | Silicon carbide optical frames and preparation method thereof |
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| CN201910764369.2A CN110483001A (en) | 2019-08-19 | 2019-08-19 | Silicon carbide optical frames and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364746A (en) * | 2001-04-28 | 2002-08-21 | 中国科学院长春光学精密机械与物理研究所 | Forming process for silicon carbide reflector blank and expansion and contraction mold |
| CN101146742A (en) * | 2005-03-30 | 2008-03-19 | 揖斐电株式会社 | Silicon carbide-containing particle, method of manufacturing a silicon carbide-based sintered object, silicon carbide-based sintered object, and filter |
| CN101240417A (en) * | 2007-02-05 | 2008-08-13 | 中南大学 | Method for preparing silicon carbide reflecting mirror material and CVI forming device thereof |
| CN101315436A (en) * | 2007-06-01 | 2008-12-03 | 哈尔滨工业大学 | Production method of oversize silicon carbide spacing reflection mirror body |
| CN106478106A (en) * | 2016-10-09 | 2017-03-08 | 北京钢研新冶精特科技有限公司 | Prepare the manufacture method of speculum silicon carbide granulating powder |
-
2019
- 2019-08-19 CN CN201910764369.2A patent/CN110483001A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364746A (en) * | 2001-04-28 | 2002-08-21 | 中国科学院长春光学精密机械与物理研究所 | Forming process for silicon carbide reflector blank and expansion and contraction mold |
| CN101146742A (en) * | 2005-03-30 | 2008-03-19 | 揖斐电株式会社 | Silicon carbide-containing particle, method of manufacturing a silicon carbide-based sintered object, silicon carbide-based sintered object, and filter |
| CN101240417A (en) * | 2007-02-05 | 2008-08-13 | 中南大学 | Method for preparing silicon carbide reflecting mirror material and CVI forming device thereof |
| CN101315436A (en) * | 2007-06-01 | 2008-12-03 | 哈尔滨工业大学 | Production method of oversize silicon carbide spacing reflection mirror body |
| CN106478106A (en) * | 2016-10-09 | 2017-03-08 | 北京钢研新冶精特科技有限公司 | Prepare the manufacture method of speculum silicon carbide granulating powder |
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Application publication date: 20191122 |