CN103936390A - Preparation method of phosphate composite material radome body - Google Patents
Preparation method of phosphate composite material radome body Download PDFInfo
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- CN103936390A CN103936390A CN201410060342.2A CN201410060342A CN103936390A CN 103936390 A CN103936390 A CN 103936390A CN 201410060342 A CN201410060342 A CN 201410060342A CN 103936390 A CN103936390 A CN 103936390A
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Abstract
The invention discloses a preparation method of a phosphate composite material radome body. According to the preparation method, the phosphate composite material radome body is prepared via pre-dipping of fiber cloth with a phosphate glue solution, layering, and pressurized solidification moulding; a curing agent used in the preparation method is a multi-component curing agent taking aluminum oxide as a main ingredient, and is capable of improving both solidification rate and efficiency; chrome oxide and zirconium oxide are capable of resisting a temperature as high as 1700 DEG C, so that high-temperature resistance of the phosphate composite material is increased further; pressurized solidification moulding is adopted so as to avoid formation of a loose material structure and high void ratio caused by intense evaporation of steam in solidification processes, and ensure material compactness and mechanical properties in solidification processes effectively; and at the same time, step-by-step slow heating solidification conditions are beneficial for in-time discharge of gas and material compactness, and material internal porosity is reduced. The preparation method is simple; production period is short; cost is low; and the preparation method is suitable for industrialized production.
Description
Technical field
The present invention relates to guided missile wave transparent radome preparing technical field, refer to particularly a kind of preparation method of phosphate composite material radome cover body, can be applicable to air-ground, absolutely empty, the ship-based missile of short distance, intermediate range.
Background technology
Radome is positioned at the head of guided missile, is important structure parts of body, plays a part carrying, heat insulation, wave transparent, covers in severe flight environment of vehicle and can normally work with radar scanner in protective guard.
Along with the development of aeronautical and space technology, the flight Mach number of missile weapon system improves constantly, severe flight environment of vehicle is had higher requirement to missile antenna cover material, must bear higher temperature and thermal shocking, meet good electrical property, at high temperature can keep higher physical strength etc.Traditional polymer matrix composites resistance to elevated temperatures is poor, and Applicable temperature relatively low (the highest at 500 DEG C) is mainly used in low Mach, is difficult to meet the service requirements of high Mach missile-borne radome.There is excellent electric property and resistance to elevated temperatures although study at present and apply more quartzy composite ceramics, alumina-ceramic, silicon nitride ceramics etc., but stupalith fragility is large, damage tolerance is low, yield rate is low, and complex forming technology, cost is higher, has limited it and has applied widely.
Summary of the invention
The object of the invention is to overcome existing radome non-refractory, fragility is large, yield rate is low, complex process, defect that cost is high, a kind of preparation method of phosphate composite material radome cover body is provided, the feature such as that the method has is with short production cycle, cost is low, the radome cover body use temperature scope of producing is 600～1000 DEG C, can meet that brachymedial journey is air-ground, absolutely empty, the service requirements of ship-based missile.
For achieving the above object, the preparation method of the designed phosphate composite material radome cover body of the present invention, comprises the following steps:
1) moulding core and the outer mold of preparation antenna cover body, and the cloth of pre-treatment high silica fiber cloth or silica fiber cloth gained, and according to radome cover body size and specification of quality, determine size and the laying quantity of cloth;
2) even smearing release agent on moulding core and outer mold;
3) with scraper, phosphoric acid salt glue be coated onto in each piece cloth equably and roll flatly, then by the cloth coating, entirely successively laying is on moulding core, and in process of deployment, every paving is two-layer, rolls once, ensures cloth surfacing;
4) after cloth is laid, outer mold is sleeved on moulding core, tightens the pressurization bolt of mould, exert pressure so that the cloth compacting between moulding core and outer mold;
5) then cover body forming mould is positioned in baking oven, is heating and curing, after having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding;
6) cover body blank is machined to desired size, obtains phosphate composite material radome cover body.
Wherein, step 1) pretreatment process of described high silica fiber cloth or silica fiber cloth is: high silica fiber cloth or silica fiber cloth are oxidized to remove its surperficial oxygen-containing polymers completely in the air of 200～300 DEG C; The time of general oxidation is 1～3h, and oxygen-containing polymers is epoxy resin, poly-phthalimide, ethers etc.; Cloth in process of production, conventionally to carry out starching processing for avoiding the damage in coiling, weaving process process, the main component of surface slurry is oxygen-containing polymers, as epoxy resin, poly-phthalimide, ethers etc., their existence can have a strong impact on the bonding strength between cloth and phosphate base body interface, therefore need cloth to be carried out in the air of 200～300 DEG C to oxide treatment, the time of oxidation is 1～3h, to remove its surperficial oxygen-containing polymers;
Step 3) compound method of described phosphoric acid salt glue is: phosphoric acid salt resin and solidifying agent prepared according to the quality proportioning of 1:0.5～1, ground and mixed fully, obtain the glue of homogeneous (without solid particulate existence, loop-like epoxy resins state), its viscosity is 1.0～1.25PaS, then glue is left standstill to 2～4h, for subsequent use.The viscosity of glue is that 1.0～1.25PaS is comparatively suitable, and viscosity is too small, and the mobility of glue is better, is attached to glue in cloth very little, can cause the phosphate matrix of cloth interlayer to reduce, and affects the performance of material; Viscosity is excessive, and the mobility of glue is poor, to the effect of impregnation variation of cloth, can cause the phosphate matrix skewness of cloth interlayer, affects the stability of material property.
Preferably, described step 3) in, phosphoric acid salt resin is aluminum phosphate resin or chrome-alumina phosphate resin.
Alternatively, described step 3) in, solidifying agent is one or more mixture in aluminum oxide, zirconium white, chromic oxide, the granularity of described solidifying agent is micron order and nano level.
Preferably, described cloth is the cloth of pre-treatment high silica fiber cloth or silica fiber cloth gained, described step 3) in, solidifying agent is the mixture that the weight ratio of aluminum oxide and chromic oxide is 4～5:1.
Preferably, described step 3) in, solidifying agent is the mixture that aluminum oxide, chromic oxide, zirconic weight ratio are 7～8:1:2.
Preferably, described step 3) in, the consumption that is coated with phosphoric acid salt glue in cloth is 2～3 times of cloth weight.
Preferably, described step 4) in, the size of exerting pressure is 2～5MPa.
Preferably, described step 5) in, the condition being heating and curing is: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 2～4h, is then warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 2～4h, naturally cooling.
Beneficial effect of the present invention: adopt cloth preimpregnation phosphoric acid salt glue, then the moulding technique of laying, cure under pressure has been prepared phosphate composite material radome cover body, and advantage is as follows:
1) this processing method is simple, with short production cycle, and cost is lower, is suitable for through engineering approaches and produces.
2) solidifying agent of the present invention adopts the polycomponent solidifying agent taking aluminum oxide as main body, has not only improved curing speed and efficiency, and chromic oxide and zirconium white is heat-resisting reaches 1700 DEG C, thereby has further improved the resistance to elevated temperatures of matrix material.
3) the present invention adopts the processing method of cure under pressure, has avoided water vapour explosive vaporization in solidification process to cause material structure to loosen and a large amount of voidages, has effectively ensured compactness and the mechanical property of material in solidification process.Meanwhile, the condition of cure that substep slowly heats up is also conducive to gas can discharge in time, reduces the void content of material internal, is conducive to the compactness of material.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1
The preparation of certain engineering short-range guided missile radome cover body:
1) moulding core and the outer mold of preparation antenna cover body, according to radome cover body size and specification of quality, determine size and the laying quantity of high silica fiber cloth.
2) pre-treatment of high silica fiber cloth: it,, at 200 DEG C of atmospheric oxidation 2h, is removed to cloth surface epoxy type polymkeric substance.
3) preparation of phosphoric acid salt glue: Plessy's green resin and solidifying agent (aluminum oxide: chromic oxide=4:1) are prepared according to the quality proportioning of 1:0.8, sufficient ground and mixed in container, until exist without solid particulate in glue, and be loop-like epoxy resins state, viscosity requires at 1.0～1.25PaS.Then glue is left standstill to 2h.
4) even smearing release agent on moulding core and outer mold.
5) laying of preimpregnation cloth: the Plessy's green glue of preparation is coated onto on pretreated high silica fiber cloth equably and rolls flat (mass ratio of Plessy's green glue and high silica fiber cloth is 7:3) with scraper, then the high silica fiber cloth coating is layered on cover body moulding core, requires that cloth is smooth, corrugationless.Then laying successively, every paving is two-layer, rolls once, ensures cloth surfacing, corrugationless.
6) laying, to the thickness of setting, is sleeved on outer mold on moulding core, tightens the pressurization bolt of mould, applies the pressure of 2MPa.
7) then cover body forming mould is positioned in baking oven, is cured according to following condition of cure: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 2h, is then warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 3h, naturally cooling.After having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding.
8) cover body blank is machined to desired size, can obtains phosphate composite material radome cover body.
Adopt the phosphate composite material radome cover body prepared of the present invention to stand actual working environment examination and without destruction: 600～900 DEG C of position, stationary point temperature, 400～500 DEG C of big area temperature.Product is as follows with stove sample performance:
| Flexural strength (MPa) | Tensile strength (MPa) | Specific inductivity | Tangent of the dielectric loss angle |
| 98 | 64 | 3.4 | 0.011 |
Embodiment 2
The preparation of certain engineering short-range guided missile radome cover body:
1) moulding core and the outer mold of preparation antenna cover body, according to radome cover body size and specification of quality, determine size and the laying quantity of high silica fiber cloth.
2) pre-treatment of high silica fiber cloth: it,, at 200 DEG C of atmospheric oxidation 2h, is removed to cloth surface epoxy type polymkeric substance.
3) preparation of phosphoric acid salt glue: Plessy's green resin and solidifying agent (aluminum oxide: chromic oxide=5:1) are prepared according to the quality proportioning of 1:0.8, sufficient ground and mixed in container, until exist without solid particulate in glue, and be loop-like epoxy resins state, viscosity requires at 1.0～1.25PaS.Then glue is left standstill to 2h.
4) even smearing release agent on moulding core and outer mold.
5) laying of preimpregnation cloth: the Plessy's green glue of preparation is coated onto on pretreated high silica fiber cloth equably and rolls flat (mass ratio of Plessy's green glue and high silica fiber cloth is 7:3) with scraper, then the high silica fiber cloth coating is layered on cover body moulding core, requires that cloth is smooth, corrugationless.Then laying successively, every paving is two-layer, rolls once, ensures cloth surfacing, corrugationless.
6) laying, to the thickness of setting, is sleeved on outer mold on moulding core, tightens the pressurization bolt of mould, applies the pressure of 2MPa.
7) then cover body forming mould is positioned in baking oven, is cured according to following condition of cure: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 2h, is then warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 3h, naturally cooling.After having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding.
8) cover body blank is machined to desired size, can obtains phosphate composite material radome cover body.
Adopt the phosphate composite material radome cover body prepared of the present invention to stand actual working environment examination and without destruction: 600～900 DEG C of position, stationary point temperature, 400～500 DEG C of big area temperature.Product is as follows with stove sample performance:
| Flexural strength (MPa) | Tensile strength (MPa) | Specific inductivity | Tangent of the dielectric loss angle |
| 95 | 65 | 3.38 | 0.011 |
Embodiment 3
The preparation of certain engineering short-range guided missile radome cover body:
1) moulding core and the outer mold of preparation antenna cover body, according to radome cover body size and specification of quality, determine size and the laying quantity of high silica fiber cloth.
2) pre-treatment of high silica fiber cloth: it,, at 200 DEG C of atmospheric oxidation 2h, is removed to cloth surface epoxy type polymkeric substance.
3) preparation of phosphoric acid salt glue: Plessy's green resin and solidifying agent (aluminum oxide) are prepared according to the quality proportioning of 1:0.8, sufficient ground and mixed in container, until exist without solid particulate in glue, and be loop-like epoxy resins state, viscosity requires at 1.0～1.25PaS.Then glue is left standstill to 2h.
4) even smearing release agent on moulding core and outer mold.
5) laying of preimpregnation cloth: the Plessy's green glue of preparation is coated onto on pretreated high silica fiber cloth equably and rolls flat (mass ratio of Plessy's green glue and high silica fiber cloth is 7:3) with scraper, then the high silica fiber cloth coating is layered on cover body moulding core, requires that cloth is smooth, corrugationless.Then laying successively, every paving is two-layer, rolls once, ensures cloth surfacing, corrugationless.
6) laying, to the thickness of setting, is sleeved on outer mold on moulding core, tightens the pressurization bolt of mould, applies the pressure of 2MPa.
7) then cover body forming mould is positioned in baking oven, is cured according to following condition of cure: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 2h, is then warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 3h, naturally cooling.After having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding.
8) cover body blank is machined to desired size, can obtains phosphate composite material radome cover body.
Adopt the phosphate composite material radome cover body prepared of the present invention to stand actual working environment examination and without destruction: 600～900 DEG C of position, stationary point temperature, 400～500 DEG C of big area temperature.Product is as follows with stove sample performance:
| Flexural strength (MPa) | Tensile strength (MPa) | Specific inductivity | Tangent of the dielectric loss angle |
| 90 | 59 | 3.4 | 0.011 |
Embodiment 4
The preparation of certain engineering intermediate range missile radome cover body:
1) moulding core and the outer mold of preparation antenna cover body, according to radome cover body size and specification of quality, determine size and the laying quantity of silica fiber cloth.
2) pre-treatment of silica fiber cloth: it,, at 200 DEG C of atmospheric oxidation 2h, is removed to cloth surface epoxy type polymkeric substance.
3) preparation of phosphoric acid salt glue: chrome-alumina phosphate resin and solidifying agent (aluminum oxide: chromic oxide: zirconium white=7:1:2) are prepared according to the quality proportioning of 1:1, sufficient ground and mixed in container, until exist without solid particulate in glue, and become loop-like epoxy resins state, viscosity requires at 1.0～1.25PaS.Then glue is left standstill to 2h.
4) even smearing release agent on moulding core and outer mold.
5) laying of preimpregnation cloth: the chrome-alumina phosphate glue of preparation is coated onto on pretreated silica fiber cloth equably and rolls flat (mass ratio of chrome-alumina phosphate glue and silica fiber cloth is 7:3) with scraper, then the silica fiber cloth coating is layered on cover body moulding core, requires that cloth is smooth, corrugationless.Then laying successively, every paving is two-layer, rolls once, ensures cloth surfacing, corrugationless.
6) laying, to the thickness of setting, is sleeved on outer mold on moulding core, tightens the pressurization bolt of mould, applies the pressure of 2MPa.
7) then cover body forming mould is positioned in baking oven, is cured according to following condition of cure: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 3h, is then warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 4h, naturally cooling.After having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding.
8) cover body blank is machined to desired size, can obtains phosphate composite material radome cover body.
Adopt the phosphate composite material radome cover body prepared of the present invention to stand actual working environment examination and without destruction: 1000～1200 DEG C of position, stationary point temperature, 600～800 DEG C of big area temperature.Product is as follows with stove sample performance:
| Flexural strength (MPa) | Tensile strength (MPa) | Specific inductivity | Tangent of the dielectric loss angle |
| 126 | 79 | 3.2 | 0.012 |
Embodiment 5
The preparation of certain engineering intermediate range missile radome cover body:
1) moulding core and the outer mold of preparation antenna cover body, according to radome cover body size and specification of quality, determine size and the laying quantity of silica fiber cloth.
2) pre-treatment of silica fiber cloth: it,, at 200 DEG C of atmospheric oxidation 2h, is removed to cloth surface epoxy type polymkeric substance.
3) preparation of phosphoric acid salt glue: chrome-alumina phosphate resin and solidifying agent (aluminum oxide: chromic oxide: zirconium white=8:1:2) are prepared according to the quality proportioning of 1:1, sufficient ground and mixed in container, until exist without solid particulate in glue, and become loop-like epoxy resins state, viscosity requires at 1.0～1.25PaS.Then glue is left standstill to 2h.
4) even smearing release agent on moulding core and outer mold.
5) laying of preimpregnation cloth: the chrome-alumina phosphate glue of preparation is coated onto on pretreated silica fiber cloth equably and rolls flat (mass ratio of chrome-alumina phosphate glue and silica fiber cloth is 7:3) with scraper, then the silica fiber cloth coating is layered on cover body moulding core, requires that cloth is smooth, corrugationless.Then laying successively, every paving is two-layer, rolls once, ensures cloth surfacing, corrugationless.
6) laying, to the thickness of setting, is sleeved on outer mold on moulding core, tightens the pressurization bolt of mould, applies the pressure of 2MPa.
7) then cover body forming mould is positioned in baking oven, is cured according to following condition of cure: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 3h, is then warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 4h, naturally cooling.After having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding.
8) cover body blank is machined to desired size, can obtains phosphate composite material radome cover body.
Adopt the phosphate composite material radome cover body prepared of the present invention to stand actual working environment examination and without destruction: 1000～1200 DEG C of position, stationary point temperature, 600～800 DEG C of big area temperature.Product is as follows with stove sample performance:
| Flexural strength (MPa) | Tensile strength (MPa) | Specific inductivity | Tangent of the dielectric loss angle |
| 120 | 82 | 3.2 | 0.012 |
Embodiment 6
The preparation of certain engineering intermediate range missile radome cover body:
1) moulding core and the outer mold of preparation antenna cover body, according to radome cover body size and specification of quality, determine size and the laying quantity of silica fiber cloth.
2) pre-treatment of silica fiber cloth: it,, at 200 DEG C of atmospheric oxidation 2h, is removed to cloth surface epoxy type polymkeric substance.
3) preparation of phosphoric acid salt glue: chrome-alumina phosphate resin and solidifying agent (aluminum oxide) are prepared according to the quality proportioning of 1:1, sufficient ground and mixed in container, until exist without solid particulate in glue, and become loop-like epoxy resins state, viscosity requires at 1.0～1.25PaS.Then glue is left standstill to 2h.
4) even smearing release agent on moulding core and outer mold.
5) laying of preimpregnation cloth: the chrome-alumina phosphate glue of preparation is coated onto on pretreated silica fiber cloth equably and rolls flat (mass ratio of chrome-alumina phosphate glue and silica fiber cloth is 7:3) with scraper, then the silica fiber cloth coating is layered on cover body moulding core, requires that cloth is smooth, corrugationless.Then laying successively, every paving is two-layer, rolls once, ensures cloth surfacing, corrugationless.
6) laying, to the thickness of setting, is sleeved on outer mold on moulding core, tightens the pressurization bolt of mould, applies the pressure of 2MPa.
7) then cover body forming mould is positioned in baking oven, is cured according to following condition of cure: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 3h, is then warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 4h, naturally cooling.After having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding.
8) cover body blank is machined to desired size, can obtains phosphate composite material radome cover body.
Adopt the phosphate composite material radome cover body prepared of the present invention to stand actual working environment examination and without destruction: 1000～1200 DEG C of position, stationary point temperature, 600～800 DEG C of big area temperature.Product is as follows with stove sample performance:
| Flexural strength (MPa) | Tensile strength (MPa) | Specific inductivity | Tangent of the dielectric loss angle |
| 115 | 76 | 3.1 | 0.012 |
Claims (8)
1. a preparation method for phosphate composite material radome cover body, comprises the following steps:
1) moulding core and the outer mold of preparation antenna cover body, and the cloth of pre-treatment high silica fiber cloth or silica fiber cloth gained, and according to radome cover body size and specification of quality, determine size and the laying quantity of cloth;
2) even smearing release agent on moulding core and outer mold;
3) with scraper, phosphoric acid salt glue be coated onto in each piece cloth equably and roll flatly, then by the cloth coating, entirely successively laying is on moulding core, and in process of deployment, every paving is two-layer, rolls once, ensures cloth surfacing;
4) after cloth is laid, outer mold is sleeved on moulding core, tightens the pressurization bolt of mould, exert pressure so that the cloth compacting between moulding core and outer mold;
5) then cover body forming mould is positioned in baking oven, is heating and curing, after having solidified, be cooled to room temperature, cover body blank is taken out in the demoulding;
6) cover body blank is machined to desired size, obtains phosphate composite material radome cover body.
Wherein, described in step 1), the pretreatment process of high silica fiber cloth or silica fiber cloth is: high silica fiber cloth or silica fiber cloth are oxidized to remove its surperficial oxygen-containing polymers completely in the air of 200～300 DEG C;
Described in step 3), the compound method of phosphoric acid salt glue is: phosphoric acid salt resin and solidifying agent are prepared according to the quality proportioning of 1:0.5～1, ground and mixed fully, obtains homogeneous glue, and its viscosity is 1.0～1.25PaS, then glue is left standstill to 2～4h, for subsequent use.
2. the preparation method of phosphate composite material radome cover body according to claim 1, is characterized in that: in described step 3), phosphoric acid salt resin is aluminum phosphate resin or chrome-alumina phosphate resin.
3. the preparation method of phosphate composite material radome cover body according to claim 1, it is characterized in that: in described step 3), solidifying agent is one or more mixture in aluminum oxide, zirconium white, chromic oxide, and the granularity of described solidifying agent is micron order and nano level.
4. the preparation method of phosphate composite material radome cover body according to claim 3, is characterized in that: in described step 3), solidifying agent is the mixture that the weight ratio of aluminum oxide and chromic oxide is 4～5:1.
5. the preparation method of phosphate composite material radome cover body according to claim 3, is characterized in that: in described step 3), solidifying agent is the mixture that aluminum oxide, chromic oxide and zirconic weight ratio are 7～8:1:2.
6. according to the preparation method of the phosphate composite material radome cover body described in any one in claim 1～5, it is characterized in that: in described step 3), the consumption that is coated with phosphoric acid salt glue in cloth is 2～3 times of cloth weight.
7. according to the preparation method of the phosphate composite material radome cover body described in any one in claim 1～5, it is characterized in that: in described step 4), the size of exerting pressure is 2～5MPa.
8. according to the preparation method of the phosphate composite material radome cover body described in any one in claim 1～5, it is characterized in that: in described step 5), the condition being heating and curing is: the temperature rise rate with 10 DEG C/h is warming up to 150 DEG C by room temperature, insulation 2～4h, then be warming up to 180 DEG C with the temperature rise rate of 25 DEG C/h, insulation 2～4h, naturally cooling.
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| CN104441678A (en) * | 2014-09-30 | 2015-03-25 | 湖北三江航天江北机械工程有限公司 | Preparation method of broadband wave-transmission resin based radome with irregular structure |
| CN105130483A (en) * | 2015-06-12 | 2015-12-09 | 湖北三江航天江北机械工程有限公司 | Composite quartz ceramic radome body compression molding method and dedicated compression mold |
| CN105130483B (en) * | 2015-06-12 | 2018-03-09 | 湖北三江航天江北机械工程有限公司 | Compound quartz pottery antenna covering cover body compression-molding method and its special compression mould |
| CN106242550A (en) * | 2016-07-22 | 2016-12-21 | 哈尔滨工业大学 | A kind of moistureproof wave transparent quartz fibre/phosphate ceramics composite material and preparation method thereof |
| CN110256091A (en) * | 2019-06-24 | 2019-09-20 | 湖北三江航天江北机械工程有限公司 | Polycrystalline mullite fibre enhances the efficient forming method of phosphate composite ceramics antenna house |
| CN110256091B (en) * | 2019-06-24 | 2021-10-01 | 湖北三江航天江北机械工程有限公司 | Efficient forming method for polycrystalline mullite fiber reinforced phosphate composite ceramic radome |
| CN113321483A (en) * | 2021-06-03 | 2021-08-31 | 哈尔滨工程大学 | Preparation method of heating-free broken quartz fiber cloth reinforced phosphate composite material |
| CN116283321A (en) * | 2023-05-18 | 2023-06-23 | 中南大学 | Ablation-resistant coated zirconium-based phosphate material and preparation method thereof |
| CN116283321B (en) * | 2023-05-18 | 2023-08-11 | 中南大学 | Ablation-resistant coated zirconium-based phosphate material and preparation method thereof |
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