CN107805777A - A kind of tungsten boron stratified material with ray and neutron comprehensive shielding effect - Google Patents
A kind of tungsten boron stratified material with ray and neutron comprehensive shielding effect Download PDFInfo
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- CN107805777A CN107805777A CN201710847494.0A CN201710847494A CN107805777A CN 107805777 A CN107805777 A CN 107805777A CN 201710847494 A CN201710847494 A CN 201710847494A CN 107805777 A CN107805777 A CN 107805777A
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- tungsten
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- 239000000463 material Substances 0.000 title claims abstract description 51
- JEEHQNXCPARQJS-UHFFFAOYSA-N boranylidynetungsten Chemical compound [W]#B JEEHQNXCPARQJS-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 230000000694 effects Effects 0.000 title claims abstract description 14
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 17
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 16
- 239000010937 tungsten Substances 0.000 claims abstract description 16
- 229910001080 W alloy Inorganic materials 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 3
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052796 boron Inorganic materials 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 description 17
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 12
- 230000005251 gamma ray Effects 0.000 description 10
- 230000005855 radiation Effects 0.000 description 10
- 238000005498 polishing Methods 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 229910021538 borax Inorganic materials 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 239000011780 sodium chloride Substances 0.000 description 7
- 239000004328 sodium tetraborate Substances 0.000 description 7
- 235000010339 sodium tetraborate Nutrition 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 244000137852 Petrea volubilis Species 0.000 description 5
- 230000003471 anti-radiation Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 5
- 239000010431 corundum Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005238 degreasing Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000002285 radioactive effect Effects 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 4
- 239000012190 activator Substances 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229910052571 earthenware Inorganic materials 0.000 description 3
- 229910000531 Co alloy Inorganic materials 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- OPEKUPPJGIMIDT-UHFFFAOYSA-N boron gold Chemical compound [B].[Au] OPEKUPPJGIMIDT-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/68—Boronising
Abstract
The present invention discloses a kind of tungsten boron stratified material with ray and neutron comprehensive shielding effect, belongs to shielding material technical field.The tungsten boron stratified material is made up of tungsten or tungsten alloy, boride layer, wherein the thickness of boride layer is 38 ~ 45 μm, boron is present in boride layer in the form of boride, and tungsten alloy Ni, Cu, Nb, Co, Mo, Cr or C element and the alloy of wolfram element composition, wherein tungsten mass percent is 85 ~ 99%.Compared to traditional tungsten and its alloy material, this special layer structure makes tungsten boron composite be respectively provided with more significant shield effectiveness to X ray, gamma-rays and neutron, while has the characteristics that intensity height, hardness height, good conductivity, excellent corrosion resistance.
Description
Technical field
The present invention relates to a kind of tungsten boron stratified material with ray and neutron comprehensive shielding effect, belong to shielding material skill
Art field.
Background technology
The development of nuclear science and technology industry brings huge interests to the mankind, but consequently also to the mankind and its life of relying
The environment deposited brings direct or indirect radiation hazradial bundle.Reactor is the core of nuclear power source system, nuclear fission meeting therein
Neutron, gamma-rays, secondary gamma-rays, X ray and other high-energy rays of for example different energy levels of various radiation rays are produced, to human body
Damaged with environment.In order to prevent or reduce the harm that radiation ray is brought to human body and bad border, radiation protection is carried out,
And radiation protection relies primarily on the performance of anti-radiation shielding material.Anti-radiation shielding material is mainly to neutron, X ray and γ
The ionising radiations such as ray have the material of shielding action.Anti-radiation shielding material most widely used at present is containing high atomic number lead
（Such as lead, refined lead, organic lead glass）And barium（Such as organic barium glass）Material.
But with the development of nuclear power source and various nuclear reactors, the requirement more and more higher to anti-radiation shielding material.It is single
One traditional shielding material is difficult to meet all requirement of shelter, for example, lead and its compound it is poisonous, and prepare, use and abandon
When can produce serious environmental pollution, organic barium glass has the shortcomings that with case hardness is low, shielding property is poor.It is and existing
Many compound anti-radiation shielding materials are difficult to meet composite request of the radiation protection to other performances again, such as mechanical property, anti-spoke
According to property etc..In order to solve these defects, there is provided one kind has mechanical strength, and to the nuclear radiation energy such as neutron, X ray and gamma-rays
The problem of environmentally friendly shielding material effectively protected is current in the urgent need to address.
The content of the invention
The problem of can not being taken into account for existing Shielding Materials for Nuclear Radiation performance, application, the present invention, which provides one kind, to be had
The tungsten boron stratified material of ray and neutron comprehensive shielding effect, the tungsten boron stratified material have mechanical strength, can effectively protected
The nuclear radiation such as neutron, X ray and gamma-rays, it is environmentally friendly the characteristics of；
A kind of tungsten boron stratified material with ray and neutron comprehensive shielding effect, is made up of tungsten or tungsten alloy, boride layer, wherein
The thickness of boride layer is 38 ~ 45 μm；
The tungsten alloy is Ni, Cu, Nb, Co, Mo, Cr or C element and the alloy of wolfram element composition, and wherein tungsten mass percent is
85~99%；
The tungsten boron stratified material of the present invention is combined by boronising, and boriding medium used includes boron supplying agent, reducing agent and activation
Agent；
The boron supplying agent is non-setting boron powder, borax, and the reducing agent is aluminium powder, and the activator is sodium chloride or potassium chloride.
The present invention is above-mentioned, and there is the preparation technology of tungsten boron stratified material of ray and neutron comprehensive shielding effect to be：First
Specimen surface is cleaned with detergent, then sand paper is polishing to 2000#.Boriding medium includes boron supplying agent（It is non-setting boron powder and
Borax）, reducing agent（Aluminium powder）, in order to increase the mobility of melting boriding medium, a small amount of activator of addition（Sodium chloride）, by more than
Reagent presses boron powder and borax, reducing agent（Aluminium powder）, activator（Sodium chloride）Mass ratio be 1:6:1:1~ 1:7:1:1 ratio
It is put into ball mill and is well mixed, by the tungsten of well cutting or tungsten alloy matrix material embedment boriding medium, is sealed in corundum crucible
In, carry out 10 ~ 15h of high temperature Bononizing pretreatment in the case where temperature is 1000 ~ 1300 DEG C of process conditions；The boronising sample of taking-up, room temperature
The boriding medium of removal remained on surface and other impurities in hot water are put into after cooling to produce with ray and neutron comprehensive shielding effect
Stratified material.
The beneficial effects of the invention are as follows：Boron or boride are added on pure tungsten or tungsten alloy matrix, using boriding process plus
Heat treatment, while mechanical property is improved, obtain tungsten boron layer shape ray and neutron shielding material.Its to X ray, gamma-rays and
Neutron has more significant shield effectiveness, and the thickness of boride layer is 40 ~ 43 μm of tungsten-boron layer shape ray and neutron shielding material
（Thickness is 20mm）It is respectively 98.46%, 99.63% and to the X-ray shield rate that energy is 65KeV, 118KeV and 250KeV
90.25%, it is 49.55% to gamma-ray shielding rate（137Cs sources）With 33.42%（60Co sources）, the shielding rate of neutron is up to 91.36%；
The thickness of boride layer is 39 ~ 42 μm of tungsten-cobalt alloy-boron layer shape ray and neutron shielding material（Thickness is 20mm）It is to energy
65KeV, 118KeV and 250KeV X-ray shield rate respectively reach 75.36%, 78.42% and 68.95%, to gamma-ray shielding
Rate is 38.54%（137Cs sources）With 22.35%（60Co sources）, the shielding rate of neutron is up to 93.56%；The tungsten boron stratified material of the present invention is also
There is intensity height, high rigidity, good conductivity, excellent corrosion resistance.
Brief description of the drawings
Fig. 1 is the surface topography scanning electron microscope (SEM) photograph of 1 tungsten of embodiment-boron stratified material；
Fig. 2 is the microscopic structure scanning electron microscope (SEM) photograph of 1 tungsten of embodiment-boron stratified material；
Fig. 3 is the surface topography scanning electron microscope (SEM) photograph of 2 tungsten-cobalt alloys of embodiment-boron stratified material；
Fig. 4 is the microscopic structure scanning electron microscope (SEM) photograph of 2 tungsten-cobalt alloys of embodiment-boron stratified material.
Embodiment
Embodiment 1：The matrix of the present embodiment selects pure tungsten matrix；
Pure tungsten matrix is pre-processed, handling process is：Surface degreasing, deionized water are cleaned, sand paper is polished, acetone cleans,
Deionized water be cleaned by ultrasonic, be sealed in it is stand-by in absolute ethyl alcohol；The matrix of pretreatment is embedded to boriding medium（Boriding medium forms quality
Percentage is：Borax 70%, aluminium powder 10%, sodium chloride 10%, boron powder 10%）, it is sealed in corundum crucible, is put into batch-type furnace, in temperature
Spend for high temperature Bononizing pretreatment 15h under conditions of 1000 DEG C, the boronising sample of taking-up, be put into after room temperature cooling in hot water and remove surface
The boriding medium and other impurities of residual produce the tungsten boron stratified material with ray and neutron comprehensive shielding effect；
Microstructure characteristics：The tungsten boron stratified material of the present embodiment is surface-treated（Polishing, polishing, corrosion）, using sweeping
The Microstructure characteristics of Electron microscopic study sample are retouched, as shown in figure 1, alloy structure is evenly distributed, the state of interface of each phase is good
It is good；
The microscopic structure scanning electron microscope (SEM) photograph of the tungsten boron stratified material of the present embodiment is as shown in Fig. 2 borided layer depth is 40 ~ 43 μm；
Shielding properties is tested：X-ray shield performance detection is carried out using MG452 types x-ray system, X-ray energy is respectively
65keV, 118keV and 250keV.The test of gamma ray shielding performance, radioactive source are carried out using gamma-rays exposure standard set-up
For137Cs（Ray energy 661KeV）With60Co（Ray energy 1.25MeV）Neutron shield experiment uses PTW-UNIDOS ionisation chambers
Type standard dose instrument and the detection of Am-Be neutron source slowing downs experimental provision, test result is as shown in table 1, as known from Table 1, tungsten-boron layer
Shape ray and neutron shielding material respectively reach 98.46% to the X-ray shield rate that energy is 65KeV, 118KeV and 250KeV,
99.63% and 90.25%；It is 49.55% to gamma-ray shielding rate（137Cs sources）With 33.42%（60Co sources）；The shielding rate of neutron reaches
91.36%。
Embodiment 2：The matrix of the present embodiment selects YG3X tungsten-cobalt hard alloy matrix；YG3X tungsten-cobalt hard alloy
Constituent is：WC mass percents are that 97%, Co mass percents are 3%；
The tungsten-cobalt hard alloy matrix that the trade mark is YG3X is pre-processed, handling process is：Surface degreasing, deionized water are clear
Wash, sand paper is polished, acetone cleans, deionized water is cleaned by ultrasonic, it is stand-by in absolute ethyl alcohol to be sealed in；The matrix of pretreatment is embedded to
Boriding medium（Boriding medium forms mass percent：Borax 70%, aluminium powder 10%, sodium chloride 10%, boron powder 10%）, it is sealed in corundum earthenware
In crucible, batch-type furnace is put into, high temperature Bononizing pretreatment 10h under conditions of being 1000 DEG C in temperature, the boronising sample of taking-up, room temperature cooling
The boriding medium of removal remained on surface and other impurities in hot water are put into afterwards produces the tungsten with ray and neutron comprehensive shielding effect
Boron stratified material；
Microstructure characteristics：The tungsten boron stratified material of the present embodiment is surface-treated（Polishing, polishing, corrosion）, using sweeping
The Microstructure characteristics of Electron microscopic study sample are retouched, as shown in figure 3, alloy structure is evenly distributed, the state of interface of each phase is good
It is good；
The microscopic structure scanning electron microscope (SEM) photograph of the tungsten boron stratified material of the present embodiment is as shown in figure 4, borided layer depth is 39 ~ 42 μm；
Shielding properties is tested：X-ray shield performance detection is carried out using MG452 types x-ray system, X-ray energy is respectively
65keV, 118keV and 250keV.The test of gamma ray shielding performance, radioactive source are carried out using gamma-rays exposure standard set-up
For137Cs（Ray energy 661KeV）With60Co（Ray energy 1.25MeV）Neutron shield experiment uses PTW-UNIDOS ionisation chambers
Type standard dose instrument and the detection of Am-Be neutron source slowing downs experimental provision, test result is as shown in table 1, and as known from Table 1, tungsten-cobalt is closed
Gold-boron layer shape ray and neutron shielding material respectively reach to the X-ray shield rate that energy is 65KeV, 118KeV and 250KeV
75.36%th, 78.42% and 68.95%；It is 38.54% to gamma-ray shielding rate（137Cs sources）With 22.35%（60Co sources）；Neutron
Shielding rate is up to 93.56%.
Embodiment 3：The matrix of the present embodiment selects YG15 tungsten-cobalt hard alloy matrix；The constituent of YG15 alloys
For：WC mass percents are that 85%, Co mass percents are 15%；
The tungsten-cobalt hard alloy matrix that the trade mark is YG15 is pre-processed, handling process is：Surface degreasing, deionized water are clear
Wash, sand paper is polished, acetone cleans, deionized water is cleaned by ultrasonic, it is stand-by in absolute ethyl alcohol to be sealed in；The matrix of pretreatment is embedded to
Boriding medium（Boriding medium forms mass percent：Borax 70%, aluminium powder 10%, sodium chloride 10%, boron powder 10%）, it is sealed in corundum earthenware
In crucible, batch-type furnace is put into, high temperature Bononizing pretreatment 10h under conditions of being 1000 DEG C in temperature, the boronising sample of taking-up, room temperature cooling
The boriding medium of removal remained on surface and other impurities in hot water are put into afterwards produces the tungsten with ray and neutron comprehensive shielding effect
Boron stratified material；
Microstructure characteristics：The tungsten boron stratified material of the present embodiment is surface-treated（Polishing, polishing, corrosion）, using sweeping
The Microstructure characteristics of Electron microscopic study sample are retouched, alloy structure is evenly distributed, and the state of interface of each phase is good；
With the microscopic structure of the tungsten boron stratified material of scanning electron microscopic observation the present embodiment, borided layer depth is 40 ~ 43 μm；
Shielding properties is tested：X-ray shield performance detection is carried out using MG452 types x-ray system, X-ray energy is respectively
65keV, 118keV and 250keV.The test of gamma ray shielding performance, radioactive source are carried out using gamma-rays exposure standard set-up
For137Cs（Ray energy 661KeV）With60Co（Ray energy 1.25MeV）Neutron shield experiment uses PTW-UNIDOS ionisation chambers
Type standard dose instrument and the detection of Am-Be neutron source slowing downs experimental provision, test result is as shown in table 1, and as known from Table 1, tungsten-cobalt is closed
Gold-boron layer shape ray and neutron shielding material respectively reach to the X-ray shield rate that energy is 65KeV, 118KeV and 250KeV
62.36%th, 64.42% and 59.95%；It is 33.42% to gamma-ray shielding rate（137Cs sources）With 19.39%（60Co sources）；Neutron
Shielding rate is up to 88.63%.
Embodiment 4：The matrix of the present embodiment selects YG6A alloy substrates；The constituent of YG6A alloys is：WC mass hundred
Fraction is that 92%, Co mass percents are 8%；
The tungsten-cobalt hard alloy matrix that the trade mark is YG6A is pre-processed, handling process is：Surface degreasing, deionized water are clear
Wash, sand paper is polished, acetone cleans, deionized water is cleaned by ultrasonic, it is stand-by in absolute ethyl alcohol to be sealed in；The matrix of pretreatment is embedded to
Boriding medium（Boriding medium forms mass percent：Borax 70%, aluminium powder 10%, sodium chloride 10%, boron powder 10%）, it is sealed in corundum earthenware
In crucible, batch-type furnace is put into, high temperature Bononizing pretreatment 10h under conditions of being 1000 DEG C in temperature, the boronising sample of taking-up, room temperature cooling
The boriding medium of removal remained on surface and other impurities in hot water are put into afterwards produces the tungsten with ray and neutron comprehensive shielding effect
Boron stratified material；
Microstructure characteristics：The tungsten boron stratified material of the present embodiment is surface-treated（Polishing, polishing, corrosion）, using sweeping
The Microstructure characteristics of Electron microscopic study sample are retouched, alloy structure is evenly distributed, and the state of interface of each phase is good；
With the microscopic structure of the tungsten boron stratified material of scanning electron microscopic observation the present embodiment, borided layer depth is 42 ~ 45 μm；
Shielding properties is tested：X-ray shield performance detection is carried out using MG452 types x-ray system, X-ray energy is respectively
65keV, 118keV and 250keV.The test of gamma ray shielding performance, radioactive source are carried out using gamma-rays exposure standard set-up
For137Cs（Ray energy 661KeV）With60Co（Ray energy 1.25MeV）Neutron shield experiment uses PTW-UNIDOS ionisation chambers
Type standard dose instrument and the detection of Am-Be neutron source slowing downs experimental provision, test result is as shown in table 1,
The thickness of table 1 is the shielding properties table of 20mm tungsten boron stratified material
As known from Table 1, tungsten-cobalt alloy-boron layer shape ray and neutron shielding material are 65KeV, 118KeV and 250KeV to energy
X-ray shield rate respectively reaches 70.26%, 72.64% and 62.96%；It is 38.54% to gamma-ray shielding rate（137Cs sources）With
20.89%（60Co sources）；The shielding rate of neutron is up to 90.44%.
Claims (2)
- A kind of 1. tungsten boron stratified material with ray and neutron comprehensive shielding effect, it is characterised in that：The material is by tungsten or tungsten Alloy, boride layer composition, the wherein thickness of boride layer are 38 ~ 45 μm.
- 2. the tungsten boron stratified material according to claim 1 with ray and neutron comprehensive shielding effect, it is characterised in that： Tungsten alloy is Ni, Cu, Nb, Co, Mo, Cr or C element and the alloy of wolfram element composition, and wherein tungsten mass percent is 85 ~ 99%.
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| CN110106465A (en) * | 2019-04-22 | 2019-08-09 | 昆明理工大学 | A method of efficiently preparing titanium boron laminar composite |
| CN112226728A (en) * | 2020-10-15 | 2021-01-15 | 厦门理工学院 | Tungsten product with oxidation-resistant coating and preparation method thereof |
| CN113463090A (en) * | 2021-06-30 | 2021-10-01 | 重庆工港致慧增材制造技术研究院有限公司 | Sprue cup surface laser cladding material for aluminum alloy casting and laser cladding method |
| CN113463090B (en) * | 2021-06-30 | 2022-08-12 | 重庆工港致慧增材制造技术研究院有限公司 | Sprue cup surface laser cladding material for aluminum alloy casting and laser cladding method |
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