CN104446489A - Matrix material of heat-absorbing body for solar thermal power generation and preparation method of matrix material - Google Patents
Matrix material of heat-absorbing body for solar thermal power generation and preparation method of matrix material Download PDFInfo
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- CN104446489A CN104446489A CN201410639700.5A CN201410639700A CN104446489A CN 104446489 A CN104446489 A CN 104446489A CN 201410639700 A CN201410639700 A CN 201410639700A CN 104446489 A CN104446489 A CN 104446489A
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Abstract
The invention discloses a matrix material of a heat-absorbing body for solar thermal power generation and a preparation method of the matrix material. The matrix material comprises the following components in parts by mass: 25-50 parts of silicon carbide, 8-15 parts of silicon dioxide, 1-6 parts of aluminum oxide, 2-5 parts of aluminum carbide Al4C3, 0.12-0.36 part of barium oxide BaO, 3-6 parts of a surfactant, 0.1-0.6 part of SiAlON, 0.22-0.84 part of cesium carbonate, 0.45-1.35 parts of molybdenum trioxide, and 0.18-1.25 parts of glass fiber, wherein the particle size of silicon carbide is 0.2-1.5mm, and the surfactant is polyethylene glycol. The matrix material further comprises 0.05-0.15 part of iron oxide and 0.11-0.51 part of copper. The matrix material of the heat-absorbing body for solar thermal power generation prepared by the preparation method disclosed by the invention has excellent thermal shock resistance, and relatively high strength and refractoriness, thereby meeting the current requirements of the solar thermal power generation heat-absorbing material.
Description
Technical field
The invention belongs to solar cell material technical field, be specifically related to a kind of solar energy thermal-power-generating heat-absorbing body body material and preparation method thereof.
Background technology
The energy of shortage has had a strong impact on the life of people and the development of restriction society.Abundant sun power is important clean energy, is the energy that inexhaustible, nexhaustible, pollution-free, cheap, the mankind can freely utilize.After the first oil crisis, various countries competitively carry out the applied research of the clean and renewable energy source such as sun power, water energy, wind energy, and especially the applied research of sun power is the most extensive.
Sun power as a kind of green energy resource to environment without any nonstaining property, and its source is simple, can be described as in the existence time limit of the mankind that it is inexhaustible.Sun power is not only the disposable energy, or clean energy, its aboundresources, ubiquity, without the need to transporting, also can freely using, the most important thing is environment without any pollution.Solar cell is also because the singularity of sun power has the advantage not available for other generation modes many: by region restriction, not consume fuel, scale is changeable, handiness is large, pollution-free, noiselessness, safe and reliable, the construction period is short, safeguard simply, have most the possibility of large-scale application.So a lot of expert goes solar energy to exploitation as the alternative energy, wish that the sun can be brought benefit to the mankind.Nowadays used sun power have greatly by solar cell change get.Because solar cell has induction to light, can be electric energy the transform light energy being radiated at its surface.At present, under the effort of relevant expert, solar cell is own through having moved towards commercialization and industrialization.
Solar electrical energy generation kind is a lot, and at present, comparatively ripe has solar energy power generating and solar energy thermal-power-generating.In numerous solar utilization techniques, solar energy thermal-power-generating technology is described as prospect most, most possibly utilizes the technology of sun power on a large scale.Solar energy thermal-power-generating utilizes condensing apparatus to assemble sun power, after resorber absorbs, changes into heat energy, and generation high-temperature steam or gas enter turbine LP rotors or gas-turbine generator set produces electric energy.Different by optically focused form, solar energy thermal-power-generating can be divided into the generating of tower type solar energy thermal power generation, trough type solar power generation and disc type solar energy heat.Tower-type solar thermal power generating system, because focusing ratio is high, thermodynamic cycle temperature is high, thermal losses is little, system is simple and the feature that efficiency is high obtains the attention of countries in the world, is that current each state is all at the hot generation technology of the large solar of the advanced person studied energetically.And as the air heat-absorbing device of tower type solar energy thermal power generation core, high temperature endothermic body material is wherein responsible for and receives sun optically focused energy, and heat absorption, heat exchange vital role, affect the stability of whole heat generating system and the height of efficiency, abroad to the research of heat-absorbing body material with select to have done a large amount of work.
Summary of the invention
The object of this invention is to provide a kind of solar energy thermal-power-generating heat-absorbing body body material and preparation method thereof, preparation technology is simple to operation, obtained solar energy thermal-power-generating heat-absorbing body body material has excellent resistance to heat shocks, higher intensity and refractoriness, meets current solar energy thermal-power-generating heat-absorption material requirements.
To achieve these goals, the technique means that the present invention adopts is:
A kind of solar energy thermal-power-generating heat-absorbing body body material, component and each constituent mass mark as follows: 25 ~ 50 parts, silicon carbide, silicon-dioxide 8 ~ 15 parts, aluminium sesquioxide 1 ~ 6 part, aluminium carbide Al
4c
32 ~ 5 parts, barium oxide BaO 0.12 ~ 0.36 part, 3 ~ 6 parts, tensio-active agent, SiAlON 0.1 ~ 0.6 part, cesium carbonate (Cs
2cO
3) 0.22 ~ 0.84 part, molybdic oxide (MoO
3) 0.45 ~ 1.35 part, 0.18 ~ 1.25 part, glass fibre.
Described tensio-active agent is polyoxyethylene glycol.
Also comprise ferric oxide 0.05 ~ 0.15 part, copper 0.11 ~ 0.51 part.
The granularity of described silicon carbide is 0.2 ~ 1.5mm.
Solar energy thermal-power-generating heat-absorbing body body material, component and each constituent mass mark are preferably as follows: 35 ~ 45 parts, silicon carbide, silica 10 ~ 12 part, aluminium sesquioxide 3 ~ 5 parts, aluminium carbide Al
4c
33 ~ 4.5 parts, barium oxide BaO 0.22 ~ 0.26 part, 4 ~ 5 parts, tensio-active agent, SiAlON 0.3 ~ 0.5 part, cesium carbonate (Cs
2cO
3) 0.41 ~ 0.64 part, molybdic oxide (MoO
3) 0.72 ~ 1.1 part, 0.44 ~ 0.75 part, glass fibre, ferric oxide 0.08 ~ 0.12 part, copper 0.24 ~ 0.43 part.
The granularity of described silicon carbide is 0.35 ~ 0.7mm.
The preparation method of described solar energy thermal-power-generating heat-absorbing body body material, comprises the steps:
1) silicon carbide is placed in tensio-active agent and soaks 12 ~ 36h, be then warming up to 80 ~ 120 DEG C, add silicon-dioxide and aluminium sesquioxide, stir, mix to obtain material A;
2) leftover materials are added in the material A of step 1) in proportion, mix, be ground to fineness of materials in 200 ~ 400 orders, then granulation, compacting;
3) by step 2) base substrate that suppresses dries, and bake out temperature is 120 ~ 160 DEG C, fires and obtains product; Firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 700 ~ 800 DEG C with the temperature rise rate of 10 ~ 15 DEG C/min, reduce temperature rise rate to 4 ~ 6 DEG C/min, in temperature-rise period, respectively at 250 DEG C, 480 DEG C insulation 30min, at 800 DEG C, 1000 DEG C, 1200 DEG C, 1300 DEG C, 1400 DEG C and 1500 DEG C, be incubated 40 ~ 80min respectively, finally be warming up to 1800 DEG C, insulation 1 ~ 3h.
Soak 24h in step 1), be then warming up to 100 DEG C.
Step 2) in fineness of materials at 250 ~ 350 orders.
In step 3), firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 750 DEG C with the temperature rise rate of 12 DEG C/min, reduces temperature rise rate to 5 DEG C/min.
First adopt polyglycol surfactants processing of SiC powder in step 1), the condition of surface of SiC particle can be improved, captain's molecular chain will be had to be modified in surface of SiC, locus is provided, and prevent particle from mutually assembling, and agglomerated particle disintegrates.
Beneficial effect: a kind of solar energy thermal-power-generating heat-absorbing body body material provided by the invention and preparation method thereof, preparation technology is simple to operation, obtained solar energy thermal-power-generating heat-absorbing body body material has excellent resistance to heat shocks, higher intensity and refractoriness, meets current solar energy thermal-power-generating heat-absorption material requirements.
Embodiment
Embodiment 1
A kind of solar energy thermal-power-generating heat-absorbing body body material, component and each constituent mass mark as follows: 25 parts, silicon carbide, silicon-dioxide 8 parts, aluminium sesquioxide 1 part, aluminium carbide Al
4c
32 parts, barium oxide BaO 0.12 part, surfactant polyethylene 3 parts, SiAlON 0.1 part, cesium carbonate (Cs
2cO
3) 0.22 part, molybdic oxide (MoO
3) 0.45 part, 0.18 part, glass fibre.The granularity of silicon carbide is 0.2 ~ 0.35mm.
Preparation method, comprises the steps:
1) silicon carbide is placed in tensio-active agent and soaks 24h, be then warming up to 100 DEG C, add silicon-dioxide and aluminium sesquioxide, stir, mix to obtain material A;
2) leftover materials are added in the material A of step 1) in proportion, mix, be ground to fineness of materials in 250 ~ 350 orders, then granulation, compacting;
3) by step 2) base substrate that suppresses dries, and bake out temperature is 140 DEG C, fires and obtains product; Firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 750 DEG C with the temperature rise rate of 12 DEG C/min, reduce temperature rise rate to 5 DEG C/min, in temperature-rise period, respectively at 250 DEG C, 480 DEG C insulation 30min, at 800 DEG C, 1000 DEG C, 1200 DEG C, 1300 DEG C, 1400 DEG C and 1500 DEG C, be incubated 60min respectively, finally be warming up to 1800 DEG C, insulation 2h.
Embodiment 2
A kind of solar energy thermal-power-generating heat-absorbing body body material, component and each constituent mass mark as follows: 50 parts, silicon carbide, silica 15 parts, aluminium sesquioxide 6 parts, aluminium carbide Al
4c
35 parts, barium oxide BaO 0.36 part, surfactant polyethylene 6 parts, SiAlON 0.6 part, cesium carbonate (Cs
2cO
3) 0.84 part, molybdic oxide (MoO
3) 1.35 parts, 1.25 parts, glass fibre.The granularity of silicon carbide is 0.7 ~ 1.5mm.
Preparation method, comprises the steps:
1) silicon carbide is placed in tensio-active agent and soaks 24h, be then warming up to 100 DEG C, add silicon-dioxide and aluminium sesquioxide, stir, mix to obtain material A;
2) leftover materials are added in the material A of step 1) in proportion, mix, be ground to fineness of materials in 250 ~ 350 orders, then granulation, compacting;
3) by step 2) base substrate that suppresses dries, and bake out temperature is 140 DEG C, fires and obtains product; Firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 750 DEG C with the temperature rise rate of 12 DEG C/min, reduce temperature rise rate to 5 DEG C/min, in temperature-rise period, respectively at 250 DEG C, 480 DEG C insulation 30min, at 800 DEG C, 1000 DEG C, 1200 DEG C, 1300 DEG C, 1400 DEG C and 1500 DEG C, be incubated 60min respectively, finally be warming up to 1800 DEG C, insulation 2h.
Embodiment 3
Solar energy thermal-power-generating heat-absorbing body body material, component and each constituent mass mark as follows: 35 parts, silicon carbide, silica 10 part, aluminium sesquioxide 3 parts, aluminium carbide Al
4c
33 parts, barium oxide BaO 0.22 part, surfactant polyethylene 4 parts, SiAlON 0.3 part, cesium carbonate (Cs
2cO
3) 0.41 part, molybdic oxide (MoO
3) 0.72 part, 0.44 part, glass fibre, ferric oxide 0.08 part, copper 0.24 part.The granularity of silicon carbide is 0.35 ~ 0.7mm.
Preparation method, comprises the steps:
1) silicon carbide is placed in tensio-active agent and soaks 24h, be then warming up to 100 DEG C, add silicon-dioxide and aluminium sesquioxide, stir, mix to obtain material A;
2) leftover materials are added in the material A of step 1) in proportion, mix, be ground to fineness of materials in 250 ~ 350 orders, then granulation, compacting;
3) by step 2) base substrate that suppresses dries, and bake out temperature is 140 DEG C, fires and obtains product; Firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 750 DEG C with the temperature rise rate of 12 DEG C/min, reduce temperature rise rate to 5 DEG C/min, in temperature-rise period, respectively at 250 DEG C, 480 DEG C insulation 30min, at 800 DEG C, 1000 DEG C, 1200 DEG C, 1300 DEG C, 1400 DEG C and 1500 DEG C, be incubated 60min respectively, finally be warming up to 1800 DEG C, insulation 2h.
Embodiment 4
Solar energy thermal-power-generating heat-absorbing body body material, component and each constituent mass mark are preferably as follows: 40 parts, silicon carbide, silica 11 part, aluminium sesquioxide 4 parts, aluminium carbide Al
4c
33.8 parts, barium oxide BaO 0.24 part, surfactant polyethylene 4.5 parts, SiAlON 0.4 part, cesium carbonate (Cs
2cO
3) 0.55 part, molybdic oxide (MoO
3) 0.93 part, 0.57 part, glass fibre, ferric oxide 0.1 part, copper 0.31 part.The granularity of silicon carbide is 0.35 ~ 0.7mm.
Preparation method, comprises the steps:
1) silicon carbide is placed in tensio-active agent and soaks 24h, be then warming up to 100 DEG C, add silicon-dioxide and aluminium sesquioxide, stir, mix to obtain material A;
2) leftover materials are added in the material A of step 1) in proportion, mix, be ground to fineness of materials in 250 ~ 350 orders, then granulation, compacting;
3) by step 2) base substrate that suppresses dries, and bake out temperature is 140 DEG C, fires and obtains product; Firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 750 DEG C with the temperature rise rate of 12 DEG C/min, reduce temperature rise rate to 5 DEG C/min, in temperature-rise period, respectively at 250 DEG C, 480 DEG C insulation 30min, at 800 DEG C, 1000 DEG C, 1200 DEG C, 1300 DEG C, 1400 DEG C and 1500 DEG C, be incubated 60min respectively, finally be warming up to 1800 DEG C, insulation 2h.
Embodiment 5
Solar energy thermal-power-generating heat-absorbing body body material, component and each constituent mass mark are preferably as follows: 45 parts, silicon carbide, silica 12 parts, aluminium sesquioxide 5 parts, aluminium carbide Al
4c
34.5 parts, barium oxide BaO 0.26 part, surfactant polyethylene 5 parts, SiAlON 0.5 part, cesium carbonate (Cs
2cO
3) 0.64 part, molybdic oxide (MoO
3) 1.1 parts, 0.75 part, glass fibre, ferric oxide 0.12 part, copper 0.43 part.The granularity of silicon carbide is 0.35 ~ 0.7mm.
Preparation method, comprises the steps:
1) silicon carbide is placed in tensio-active agent and soaks 24h, be then warming up to 100 DEG C, add silicon-dioxide and aluminium sesquioxide, stir, mix to obtain material A;
2) leftover materials are added in the material A of step 1) in proportion, mix, be ground to fineness of materials in 250 ~ 350 orders, then granulation, compacting;
3) by step 2) base substrate that suppresses dries, and bake out temperature is 140 DEG C, fires and obtains product; Firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 750 DEG C with the temperature rise rate of 12 DEG C/min, reduce temperature rise rate to 5 DEG C/min, in temperature-rise period, respectively at 250 DEG C, 480 DEG C insulation 30min, at 800 DEG C, 1000 DEG C, 1200 DEG C, 1300 DEG C, 1400 DEG C and 1500 DEG C, be incubated 60min respectively, finally be warming up to 1800 DEG C, insulation 2h.。
Embodiment 6
The difference of the present embodiment and embodiment 4 is only not add ferric oxide and copper, and all the other components and each constituent mass mark are with embodiment 4.
Embodiment 7
The difference of the present embodiment and embodiment 4 is only that the granularity of silicon carbide is 0.7 ~ 1.5mm.All the other components and each constituent mass mark are with embodiment 4.
What heat-shock resistance reflected is sharply changing and the ability of unlikely destruction of material withstand temp, and it is one of parameter of the most critical determining the materials'use life-span.Experimental procedure is as follows: sample is put into High Temperature Furnaces Heating Apparatus, rises to 1100 DEG C with the temperature rise rate of 5 DEG C/min, takes out and be placed on naturally cooling in air at room temperature after insulation 60min, and sample of embodiment 1 ~ 7 being filled a prescription is placed in high temperature resistance furnace, thermal shock to 60 time.After the 10th time, 20 times, 30 times, skilful time, 40 times, 50 times and 60 anti-thermal shocks, take out test folding strength respectively, computed strength rate of loss also describes the outward appearance of wafer sample, and result is as shown in table 1.
Adopt the thermal conductivity of Japanese vacuum science and engineering Co., Ltd. LASER HEAT constant tester TC-7000H testing example 1 ~ 7 formula sample to test, the results are shown in Table 1.
Anti-oxidant test adopts the test of discontinuous weighting method, sample is put into the box silicon key side resistance furnace that air flow condition is good, is incubated 3h at 1300 DEG C.Then taken out in stove by sample, in atmosphere after Slow cooling, by the quality of electronic balance weighing sample, variable quantity before and after record, the Mass Calculation oxidation-resistance before not being oxidized than sample with variable quantity, the results are shown in Table 1.
Table 1:
| There is the thermal shock number of times of crackle | Folding strength/MPa | Thermal conductivity (W/ (mK)) | Oxidation-resistance/% | |
| Embodiment 1 | 50 times | 65.3 | 16.5 | 1.35 |
| Embodiment 2 | 50 times | 55.2 | 15.9 | 1.63 |
| Embodiment 3 | 60 times | 88.5 | 22.5 | 0.91 |
| Embodiment 4 | 60 flawlesses | 103.4 | 31.4 | 0.38 |
| Embodiment 5 | 60 flawlesses | 86.1 | 24.8 | 0.87 |
| Embodiment 6 | 50 | 63.3 | 17.2 | 1.33 |
| Embodiment 7 | 50 | 59.7 | 19.3 | 1.42 |
Claims (10)
1. a solar energy thermal-power-generating heat-absorbing body body material, it is characterized in that component and each constituent mass mark as follows: 25 ~ 50 parts, silicon carbide, silicon-dioxide 8 ~ 15 parts, aluminium sesquioxide 1 ~ 6 part, aluminium carbide 2 ~ 5 parts, barium oxide BaO 0.12 ~ 0.36 part, 3 ~ 6 parts, tensio-active agent, SiAlON 0.1 ~ 0.6 part, cesium carbonate 0.22 ~ 0.84 part, molybdic oxide 0.45 ~ 1.35 part, 0.18 ~ 1.25 part, glass fibre.
2. solar energy thermal-power-generating heat-absorbing body body material according to claim 1, is characterized in that: described tensio-active agent is polyoxyethylene glycol.
3. solar energy thermal-power-generating heat-absorbing body body material according to claim 1, is characterized in that: also comprise ferric oxide 0.05 ~ 0.15 part, copper 0.11 ~ 0.51 part.
4. solar energy thermal-power-generating heat-absorbing body body material according to claim 1, is characterized in that: the granularity of described silicon carbide is 0.2 ~ 1.5mm.
5. solar energy thermal-power-generating heat-absorbing body body material according to claim 3, it is characterized in that component and each constituent mass mark as follows: 35 ~ 45 parts, silicon carbide, silica 10 ~ 12 part, aluminium sesquioxide 3 ~ 5 parts, aluminium carbide 3 ~ 4.5 parts, 0.22 ~ 0.26 part, barium oxide, 4 ~ 5 parts, tensio-active agent, SiAlON 0.3 ~ 0.5 part, cesium carbonate 0.41 ~ 0.64 part, molybdic oxide 0.72 ~ 1.1 part, 0.44 ~ 0.75 part, glass fibre, ferric oxide 0.08 ~ 0.12 part, copper 0.24 ~ 0.43 part.
6. solar energy thermal-power-generating heat-absorbing body body material according to claim 4, is characterized in that: the granularity of described silicon carbide is 0.35 ~ 0.7mm.
7. the preparation method of heat-absorbing body body material of solar energy thermal-power-generating described in claim 1, is characterized in that comprising the steps:
1) silicon carbide is placed in tensio-active agent and soaks 12 ~ 36h, be then warming up to 80 ~ 120 DEG C, add silicon-dioxide and aluminium sesquioxide, stir, mix to obtain material A;
2) leftover materials are added in the material A of step 1) in proportion, mix, be ground to fineness of materials in 200 ~ 400 orders, then granulation, compacting;
3) by step 2) base substrate that suppresses dries, and bake out temperature is 120 ~ 160 DEG C, fires and obtains product; Firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, when being initially warming up to 700 ~ 800 DEG C with the temperature rise rate of 10 ~ 15 DEG C/min, reduce temperature rise rate to 4 ~ 6 DEG C/min, in temperature-rise period, respectively at 250 DEG C, 480 DEG C insulation 30min, at 800 DEG C, 1000 DEG C, 1200 DEG C, 1300 DEG C, 1400 DEG C and 1500 DEG C, be incubated 40 ~ 80min respectively, finally be warming up to 1800 DEG C, insulation 1 ~ 3h.
8. the solar energy thermal-power-generating preparation method of heat-absorbing body body material according to claim 7, is characterized in that: soak 24h in step 1), is then warming up to 100 DEG C.
9. the solar energy thermal-power-generating preparation method of heat-absorbing body body material according to claim 7, is characterized in that: step 2) in fineness of materials at 250 ~ 350 orders.
10. the solar energy thermal-power-generating preparation method of heat-absorbing body body material according to claim 7, it is characterized in that: in step 3), firing condition is: at 120 DEG C, be incubated 30min, then temperature programming, initial when being warming up to 750 DEG C with the temperature rise rate of 12 DEG C/min, reduce temperature rise rate to 5 DEG C/min.
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| CN107417096A (en) * | 2017-07-04 | 2017-12-01 | 河源市源日通能源有限公司 | Photo-thermal glass and preparation method thereof |
| CN108558424A (en) * | 2016-07-14 | 2018-09-21 | 范瑶飞 | Resistance to thermal shock base material and its purposes as solar energy thermal-power-generating heat-absorption material |
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| CN108558424A (en) * | 2016-07-14 | 2018-09-21 | 范瑶飞 | Resistance to thermal shock base material and its purposes as solar energy thermal-power-generating heat-absorption material |
| CN108558424B (en) * | 2016-07-14 | 2020-10-23 | 德州金奈尔新材料科技有限公司 | Thermal shock resistant substrate material and application thereof as solar thermal power generation heat absorption material |
| CN107129280A (en) * | 2017-04-06 | 2017-09-05 | 浙江伟豪能源科技有限公司 | A kind of solar energy heat absorbing ceramic material of high thermal shock stability and preparation method thereof |
| CN107140964A (en) * | 2017-04-06 | 2017-09-08 | 浙江伟豪能源科技有限公司 | A kind of solar energy heat absorbing ceramic material of high high temperature oxidation resistance and preparation method thereof |
| CN107129280B (en) * | 2017-04-06 | 2020-07-17 | 郎溪品旭科技发展有限公司 | Solar heat-absorbing ceramic material with high thermal shock resistance and preparation method thereof |
| CN107140964B (en) * | 2017-04-06 | 2020-09-15 | 旌德君创科技发展有限公司 | Solar heat-absorbing ceramic material with high-temperature oxidation resistance and preparation method thereof |
| CN107417096A (en) * | 2017-07-04 | 2017-12-01 | 河源市源日通能源有限公司 | Photo-thermal glass and preparation method thereof |
| CN107417096B (en) * | 2017-07-04 | 2020-08-04 | 河源市源日通能源有限公司 | Photo-thermal glass and preparation method thereof |
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