CN207595298U - For titanium/titanium alloy surface structure that micro space debris is protected to hit - Google Patents
For titanium/titanium alloy surface structure that micro space debris is protected to hit Download PDFInfo
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- CN207595298U CN207595298U CN201721449815.3U CN201721449815U CN207595298U CN 207595298 U CN207595298 U CN 207595298U CN 201721449815 U CN201721449815 U CN 201721449815U CN 207595298 U CN207595298 U CN 207595298U
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Abstract
The utility model discloses a kind of titanium/titanium alloy surface structure for micro space debris to be protected to hit, including being formed in the class cellular nano pipe array of titanium/titanium alloy surface and being formed in outermost hard encapsulating film.Such cellular nano pipe array is Nano tube array of titanium dioxide, and hard encapsulating film is silicon dioxide film.The length of nanotube is 100~200nm in nano-tube array, and caliber is 80~150nm.This is used for titanium/titanium alloy surface structure that micro space debris is protected to hit and forms class honeycomb sandwich protective film in titanium/titanium alloy surface; then more metope structure dispersion surges can be formed when micro space debris occurs and hits, improve space micro-debris crash effect.
Description
Technical field
The present invention relates to Spacecraft Material surfacecti proteon fields, specially a kind of to be used to protect what micro space debris was hit
Titanium/titanium alloy surface structure.
Background technology
As mankind's space activity is increasingly frequent, space debris population is significantly increased year by year, the threat to in-orbit spacecraft
It gradually increases.The mankind carry out solar-system operation space in, especially in Low Earth Orbit (LEO) space, space junk by
It is considered a realistic problem of influence space mission.Space debris detection activity shows reduction of the space junk with size, number
Amount is multiplied.It is calculated by space junk pattern MASTER-2005 it is found that most fragments are between 1-1000 μm of diameter
Minute fragments, it is and even more countless less than 1 μm of fragment.For big fragment, space micro-debris single impact
Though being not enough to generate serious consequence, due to its enormous amount, it is very important that long-term accumulated hits generated influence.Therefore,
The accumulation of space micro-debris, which is hit, to seriously affect Spacecraft Material and system generation, it has also become restrict long-life, Gao Ke
By the important space environmental factor of property spacecraft development, it is necessary to carry out space micro-debris protection.
Space micro-debris, which hits spacecraft surface, can cause surface perforation, plasma discharge, collision pollution, optics " sand
Erosion " effect equivalent damage, makes the performance degradations such as the thermal control of spacecraft surface, optics or structural damage.Minute fragments means of defence is main
It is conceived to two aspect of structure and material.Safeguard structure generally use honeycomb, porous foam structure, Wipple protecting screens；It is anti-
Protective material includes high-strength aluminium, metallic fiber plate, carbon/polyimides, Nextel high-strength ceramics fiber, quartz glass equal strength
The material that high, light-weight, performance is stablized.However, in addition to spacecraft self structure and material is changed, Spacecraft Material surface is changed
Property improve support stability against atmospheric influence be also one of important channel.Wherein thin film technique plays quite in space environment surfacecti proteon
Big effect, such as common SiO2、Al2O3、TiO2And the inorganic hards film such as diamond-like, organosiloxane etc. is flexible
Film and organic/inorganic composite film etc..The research of material properties is focused primarily upon for surfacecti proteon film layer at present, it is right
It designs in further fine structureization, is also rarely reported.
Titanium and its alloy have many advantages, such as light weight, specific strength height, good corrosion resistance, are important aerospace flight vehicle
One of material.But it will inevitably be hit by micro space debris, be generated on titanium/titanium alloy structure part different
The damage of degree, so as to cause the change of microstructure and mechanical property.The utility model carries out surface to titanium/titanium alloy and changes
Property, design class honeycomb sandwich protection membrane structure forms the surge of more metope structure dispersion fragments, it is small broken to improve space
The protective capacities that piece is hit.
Invention content
In order to solve the above-mentioned technical problem, the utility model provide it is a kind of for protect micro space debris hit
Titanium/titanium alloy surface structure forms class honeycomb sandwich protective film in titanium/titanium alloy surface, and short space then is occurring
Fragment can form more metope structure dispersion surges when hitting, improve space micro-debris crash effect.
For this purpose, the technical solution of the utility model is as follows：
A kind of titanium/titanium alloy surface structure for micro space debris to be protected to hit, including being formed in titanium/titanium alloy table
The class cellular nano pipe array in face and it is formed in outermost hard encapsulating film.
A kind of titanium/titanium alloy surface structure for micro space debris to be protected to hit, including being formed in titanium/titanium alloy table
The cellular Nano tube array of titanium dioxide of class in face and it is formed in outermost silicon dioxide film.
Further, the length of nanotube is 100~200nm in the nano-tube array, and caliber is 80~150nm.
Further, the hard encapsulating film is 3~6 layers of silicon dioxide film；Further, the thickness of every layer of silicon dioxide film
For 60~120nm.
The titanium provided in the technical solution/titanium alloy surface structure is prepared with following steps：It first will polishing
The cellular TiO of class is prepared using anode oxidation method in substrate sample after cleaning2Nano-tube array；Then colloidal sol is used
Surface is had the cellular TiO of class by gel process2The titanium sheet of nano-tube array immerses SiO2Plated film is lifted in colloidal sol, it will after plated film
Sample is heat-treated, and can be obtained with the cellular TiO of class2The compound protective coating of nano-tube array interlayer.Class honeycomb in the present invention
Shape TiO2The manufacturing process of nano-tube array interlayer laminated film is simple and quick, and cost of raw and processed materials is low, is a kind of high-efficiency and economic
Synthetic method.
Compared with existing membrane structure, the class honeycomb interlayer protecting film structure of the titanium/titanium alloy surface structure offer has
Following advantage：
(1) titanium/titanium alloy surface structure prepares low for equipment requirements, and the prices of raw materials are cheap, and operating process letter
It is single easy；
(2) titanium/titanium alloy surface structure reduces surface contact stiffness, improves the juxtaposition metamorphose energy under external force effect
Power；
(3) the cellular TiO of class2High-speed impact production is effectively alleviated and absorbed to the composite protective film of nano-tube array interlayer
Raw energy makes surface impacts cheat the degree of injury reduction that shoals, and improves the work of the high-speed impact protection to space micro-debris
With.
Description of the drawings
Fig. 1 a are titanium provided by the utility model/titanium alloy surface structure diagram；
Fig. 1 b are the dimensional structure diagram of titanium provided by the utility model/titanium alloy surface structure；
Fig. 2 a be embodiment 1 in do not have titanium/titanium alloy surface structure of hard encapsulating film scanning electron microscope (SEM) photograph (× 50,
000)；
Fig. 2 b be embodiment 1 in do not have titanium/titanium alloy surface structure of hard encapsulating film scanning electron microscope (SEM) photograph (× 100,
000)；
Fig. 3 a are the scanning electron microscope (SEM) photograph (× 200,000) of titanium/titanium alloy surface structure in embodiment 1；
Fig. 3 b are the 3D microstructure figures of titanium/titanium alloy surface structure in embodiment 1；
Fig. 4 a are the scanning electron microscope (SEM) photograph of titanium/titanium alloy surface structure after space micro-debris shock in embodiment 1；
Fig. 4 b are the scanning electron microscope (SEM) photograph of uncoated titanium-based piece after space micro-debris is hit；
Fig. 5 a are nano impress measuring load-depth curve figure of titanium/titanium alloy surface structure in embodiment 1；
Fig. 5 b are nano impress measuring load-depth curve figure of titanium-based piece in embodiment 1.
Specific embodiment
The technical solution of the utility model is described in detail below in conjunction with drawings and examples.
Embodiment 1
A kind of titanium/titanium alloy surface structure for micro space debris to be protected to hit, including being formed in titanium/titanium alloy table
The cellular Nano tube array of titanium dioxide 2 of class in face 1 and it is formed in outermost silicon dioxide film 3；Wherein, titanium dioxide
The length of nanotube is 100nm, caliber 122.2nm in nano-tube array 2；The silicon dioxide film 3 of formation haves three layers, every layer two
The thickness of silicon oxide film is 60nm.
Titanium/titanium alloy surface the structure provided in this embodiment for being used to that micro space debris to be protected to hit is used with lower section
What method was prepared：
Titanium sheet with 600#, 1000#, 1500# abrasive paper for metallograph is polished in order, obtains the dry Ti targets of cleaning；By target
Material merging ammonium fluoride 0.45g, deionized water 1mL 100mL ammonium fluoride ethylene glycol electrolyte in carry out anodic oxidation, direct current
Supply voltage is 60V, time 2h, obtains the cellular TiO of class2Nano-tube array；Surface had into the cellular TiO of class2Nanotube
The titanium sheet of array immerses ingredient for absolute ethyl alcohol 210mL, ethyl orthosilicate 210mL, anhydrous formic acid 45mL, hydrochloric acid 9mL, water
16.2mL, the SiO of dimethylformamide 4-5 drops2Plated film is lifted in colloidal sol, lifting number is 3 times, and 10min is divided between lifting, is soaked
The stain time is 10s；Sample is heat-treated after plated film, sintering temperature is 500 DEG C, and heating rate is 10 DEG C/min, and soaking time is
1h, furnace cooling can be obtained with the cellular TiO of class2The compound protective coating of nano-tube array interlayer.
TiO it can be seen from Fig. 2 a and 2b2The circularity of nanotube is preferable, and TiO2The pore size of nanotube is uniform,
It is whole similar cellular.TiO2The aperture averaging of nanotube is 122.2nm, and thickness of pipe wall is about 10nm.
Fig. 3 a and 3b respectively illustrate the scanning electron microscope (SEM) photograph of titanium/titanium alloy surface structure and 3D microstructure figures.By scanning
Electronic Speculum result can be seen that titanium/titanium alloy surface body structure surface and out-of-flatness, there is the striated distribution that height rises and falls.3D is shown
Micromorphology figure can also be it is further seen that prepared dash board SiO2There is height and rise and fall in film, this is mainly due to TiO2Nanometer
The sandwich of pipe array is determined.
Fig. 4 a and 4b respectively illustrate space micro-debris hit after embodiment 1 provide titanium/titanium alloy surface structure with
And the scanning electron microscope (SEM) photograph of uncoated titanium-based piece.As can be seen from Figure, after uncoated titanium-based piece is hit, impact damage hole more collects
In, it is deeply larger that surface caused by shock (removes outside indivedual projecting points) most hollow place.After titanium/titanium alloy surface structural impact, institute's shape
Into damage field range it is larger, present by center around radioactivity sputtering feature, and hit caused by surface (remove
Outside other projecting point) most hollow place is deep smaller.This illustrates that titanium/titanium alloy surface structure that the present embodiment obtains is improved to minute fragments
The resistivity of shock reduces the degree of injury that shock is formed.
Fig. 5 a and 5b respectively illustrate titanium provided in this embodiment/titanium alloy surface structure, the nanometer of uncoated titanium-based piece
Indentation assaying loading-depth curve figure.It can be seen from the figure that the surface load of uncoated titanium-based piece is about up to 300 μ N,
Still there is larger residual deformation, generated amount of plastic deformation is about in 15nm or so after unloading.It is provided in this embodiment
The maximum load load of titanium/titanium alloy surface structure is about 100 μ N, and afterflow amount is about 7nm after unloading, and surface connects
Tactile rigidity is substantially reduced.This illustrates that titanium/titanium alloy surface structure improves the juxtaposition metamorphose ability under external force effect, effectively alleviates
Energy with high-speed impact generation is absorbed, realizes the protective action to high-speed impact.
Embodiment 2
A kind of titanium/titanium alloy surface structure for micro space debris to be protected to hit, including being formed in titanium/titanium alloy table
The cellular Nano tube array of titanium dioxide 2 of class in face 1 and it is formed in outermost silicon dioxide film 3；Wherein, titanium dioxide
The length of nanotube is 200nm, caliber 80nm in nano-tube array 2；The silicon dioxide film 3 of formation has 6 layers, every layer of titanium dioxide
The thickness of silicon fiml is 120nm.
Titanium/titanium alloy surface the structure provided in this embodiment for being used to that micro space debris to be protected to hit is used with lower section
What method was prepared：
Titanium sheet with 600#, 1000#, 1500# abrasive paper for metallograph is polished in order, obtains the dry TiZrNbSn alloys of cleaning
Target；By target merging ammonium fluoride 0.45g, the ammonium fluoride of the 100mL of deionized water 1mL ethylene glycol electrolyte in carry out anode
Oxidation, direct current power source voltage 40V, time 3h obtain the cellular TiO of class2Nano-tube array；Surface is cellular with class
TiO2The titanium sheet of nano-tube array immerses ingredient for absolute ethyl alcohol 210mL, ethyl orthosilicate 210mL, anhydrous formic acid 45mL, hydrochloric acid
9mL, water 16.2mL, the SiO of dimethylformamide 4-5 drops2Plated film is lifted in colloidal sol, lifting number is 6 times, is divided between lifting
15min, dip time 15s；Sample is heat-treated after plated film, sintering temperature is 400 DEG C, and heating rate is 5 DEG C/min, is kept the temperature
Time is 2h, and furnace cooling can be obtained with the cellular TiO of class2The compound protective coating of nano-tube array interlayer.
Claims (5)
1. a kind of titanium/titanium alloy surface structure for micro space debris to be protected to hit, it is characterised in that：Including being formed in
The class cellular nano pipe array (2) of titanium/titanium alloy surface (1) and it is formed in outermost hard encapsulating film (3).
2. titanium/titanium alloy surface structure for micro space debris to be protected to hit as described in claim 1, it is characterised in that：
The length of nanotube is 100~200nm in the nano-tube array (2), and caliber is 80~150nm.
3. titanium/titanium alloy surface structure for micro space debris to be protected to hit as described in claim 1, it is characterised in that：
The hard encapsulating film (3) is 3~6 layers of silicon dioxide film.
4. titanium/titanium alloy surface structure for micro space debris to be protected to hit as claimed in claim 3, it is characterised in that：
The thickness of every layer of silicon dioxide film is 60~120nm.
5. a kind of titanium/titanium alloy surface structure for micro space debris to be protected to hit, including being formed in titanium/titanium alloy surface
(1) the cellular Nano tube array of titanium dioxide of class (2) and it is formed in outermost silicon dioxide film (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721449815.3U CN207595298U (en) | 2017-11-03 | 2017-11-03 | For titanium/titanium alloy surface structure that micro space debris is protected to hit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155375A (en) * | 2018-10-26 | 2019-08-23 | 北京机电工程研究所 | Space debris prevention structure |
| CN111645884A (en) * | 2020-06-17 | 2020-09-11 | 中国空气动力研究与发展中心超高速空气动力研究所 | Frame honeycomb structure, honeycomb sandwich structure and fiber filling type protection configuration |
-
2017
- 2017-11-03 CN CN201721449815.3U patent/CN207595298U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155375A (en) * | 2018-10-26 | 2019-08-23 | 北京机电工程研究所 | Space debris prevention structure |
| CN111645884A (en) * | 2020-06-17 | 2020-09-11 | 中国空气动力研究与发展中心超高速空气动力研究所 | Frame honeycomb structure, honeycomb sandwich structure and fiber filling type protection configuration |
| CN111645884B (en) * | 2020-06-17 | 2021-11-19 | 中国空气动力研究与发展中心超高速空气动力研究所 | Frame honeycomb structure, honeycomb sandwich structure and fiber filling type protection configuration |
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Granted publication date: 20180710 Termination date: 20211103 |