Hmoov Boron
| Boron | |
| Qhov tsos | Xim av dub |
| Theem ntawm STP | Khoom khov kho |
| Qhov kub yaj | 2349 K (2076 °C, 3769 °F) |
| Kub taw tes | 4200 K (3927 °C, 7101 °F) |
| Qhov ceev thaum kua (ntawm mp) | 2.08 g/cm3 |
| Kub ntawm kev sib xyaw | 50.2 kJ/mol |
| Kub ntawm kev ua pa | 508 kJ/mol |
| Lub peev xwm cua sov Molar | 11.087 J/(mol·K) |
Cov Lus Qhia Txog Kev Lag Luam rau Boron Hmoov
| Lub Npe Khoom | Cheebtsam Tshuaj | Qhov Loj Nruab Nrab ntawm Cov Khoom Me Me | Qhov tsos | ||||||
| Hmoov Boron | Nano Boron ≥99.9% | Tag Nrho Cov Pa oxygen ≤100ppm | Hlau Ion (Fe / Zn / Al / Cu / Mg / Cr / Ni) / | D50 50 ~ 80nm | Hmoov dub | ||||
| Crystal Boron Hmoov | Boron Crystal ≥99% | Mg≤3% | Fe≤0.12% | Al≤1% | Ca≤0.08% | Si ≤0.05% | Cu ≤0.001% | -300 mesh | Xim av daj rau hmoov grey tsaus |
| Amorphous Element Boron Hmoov | Boron Tsis Yog Crystal ≥95% | Mg≤3% | Cov dej yaj Boron ≤0.6% | Cov dej tsis yaj ≤0.5% | Dej thiab Cov Khoom Uas Tsis Muaj Zog ≤0.45% | Tus qauv loj 1 micron, lwm qhov loj me muaj los ntawm kev thov. | Xim av daj rau hmoov grey tsaus | ||
Pob: Lub Hnab Ntawv Nyiaj Txhuas
Kev Khaws Cia: Kev khaws cia rau hauv qab qhov chaw qhuav thiab khaws cia sib cais los ntawm lwm cov tshuaj lom neeg.
Cov ntawv thov tshwj xeeb ntawm Crystalline Boron yog dab tsi?
I. Kev Lag Luam Nuclear
-Serves ua ib qho khoom siv tswj kev ua haujlwm ntawm neutron hauv cov reactors nuclear los tswj qhov ceev ntawm neutron thiab tswj kev ua haujlwm ruaj khov ntawm reactor.
-Siv lub peev xwm nqus neutron zoo tshaj plaws ntawm crystalline boron kom txo lossis kho cov neutron flux, ua kom muaj kev nyab xeeb ntawm cov tshuab hluav taws xob nuclear.
II. Cov Ntawv Thov Semiconductor
-P-hom Dopant
Ua ib pawg III element, crystalline boron qhia txog cov acceptor theem hauv silicon thiab ua haujlwm ua lub hauv paus dopant rau kev tsim cov P-type semiconductors. Los ntawm ion implantation lossis diffusion txheej txheem, kev tswj hwm qhov tseeb ntawm doping concentration ua rau muaj P-type qhov dej lossis substrates hauv cov khoom siv suav nrog diodes, field-effect transistors (FETs), thiab insulated-gate bipolar transistors (IGBTs).
-Kev npaj ntawm P-hom Monocrystalline Silicon
Thaum lub sijhawm loj hlob ntawm monocrystalline silicon los ntawm Czochralski (CZ) lossis Float Zone (FZ) txoj kev, cov khoom me me ntawm cov khoom siv crystalline boron uas muaj kev ntshiab siab raug ntxiv rau hauv cov khoom siv polycrystalline silicon uas muaj kev ntshiab siab. Siv cov nyhuv sib cais ntawm boron hauv silicon, P-hom silicon ib leeg siv lead ua ke nrog kev tiv taus tau txais. Cov khoom siv ib leeg no ua haujlwm ua cov khoom siv substrate tseem ceeb rau cov khoom siv sib cais, cov voj voog sib xyaw ua ke, thiab cov khoom siv hluav taws xob semiconductor.
-Cov Khoom Siv Rau Boron-doped Silicon Ib Leeg Crystals
Ua ib qho chaw ntshiab boron, crystalline boron siv tau los tsim cov silicon ib leeg crystals nrog cov boron concentration tshwj xeeb los ntawm kev sib xyaw ua ke yaj. Piv nrog rau lwm cov chaw boron (piv txwv li, borane, boron tribromide), crystalline boron muaj kev ruaj khov zoo dua thiab doping uniformity, ua rau nws tsim nyog rau cov kev xav tau tshwj xeeb hauv cov khoom siv semiconductor ua tau zoo xws li detectors thiab high-voltage fais fab chips.
-Kev Cai Purity
Yuav kom paub tseeb tias cov qauv doping raug thiab cov khoom siv tau zoo, cov crystalline boron yuav tsum ua tau raws li qhov huv ntawm semiconductor (feem ntau ≥99.9999%, piv txwv li, 6N lossis siab dua). Cov hlau tsis huv (piv txwv li, Fe, Cu, Na) yuav tsum tau tswj hwm ntawm qib ppb, nrog rau kev txwv nruj rau cov khoom tsis huv ntawm lub teeb xws li carbon thiab oxygen. Zoo li N-hom dopants suav nrog phosphorus, antimony, thiab arsenic, crystalline boron thiab nws qhov chaw sib cuag nrog silicon yuav tsum tau ua haujlwm nyob rau hauv cov xwm txheej huv heev.
III. Kev Kho Qhov Muag
-Siv nws cov khoom siv kho qhov muag tsis zoo kom ua tiav cov haujlwm suav nrog kev hloov kho lub teeb, kev sib tsoo zaus, thiab zaus ob npaug.
-Siv rau hauv kev tsim cov khoom siv kho qhov muag xws li cov khoom siv kho qhov muag, cov khoom siv zaus kho qhov muag, thiab cov lasers.
-Serves ua ib qho nruab nrab rau infrared lasers, featuring ib qho loj emission cross-section thiab ib qho dav excitation spectral ntau yam.
IV. Cov Khoom Siv Uas Muaj Kev Nyuaj Siab
- Siv rau hauv kev tsim khoom ntawmBoron carbide (B₄C), ib yam khoom siv ceramic uas tawv heev nrog kev tiv taus zoo heev thiab kev ruaj khov kub, siv dav hauv cov tsho tiv thaiv mos txwv, cov cuab yeej tawv, cov khoom siv abrasives, thiab cov khoom siv ceramic uas tiv taus kev hnav.
- Siv rau hauv kev tsim khoom ntawmCov tshuaj graphite boron (B₉), uas muaj cov qauv zoo li graphite, muaj hluav taws xob conductivity siab, thiab thermal stability, tsim nyog rau cov khoom siv conductive ua tau zoo, cov ntaub ntawv tswj thermal, thiab cov ntaub ntawv sib txhuam.
V. Tub Rog & Aerospace
- Cov khoom siv tiv taus ballistic boron ceramic uas muaj purity siab
- Cov tshuaj boron retardants uas muaj cov tshuaj boron ntau
-Cov neeg sawv cev vuam boron siab-purity
- Cov khoom tawg boron uas muaj cov khoom ntshiab heev
- Cov roj boron uas muaj roj ntau / cov pa oxygen tsawg uas muaj cov roj boron ntshiab heev
VI. Cov Khoom Siv Hlau Thiab Cov Hlau
- Cov hlau boron-tooj liab uas muaj cov khoom siv siab heev
- Cov hlau boron-titanium uas muaj cov khoom siv siab heev
-High-purity boron-doped polycrystalline pob zeb diamond
- Cov cuab yeej siv boron uas muaj zog heev thiab tsis yooj yim hnav
-Cov hlau phaj uas tsis muaj zog boron uas muaj zog heev
- Cov hlau boron-nickel uas muaj purity siab
-Cov hlau boron-chromium uas muaj cov khoom siv siab heev
- Cov hlau sib xyaw Lithium-boron (rau cov khoom siv roj teeb tiam tom ntej)
-Boron-magnesium superconducting alloys
VII. Cov Txheej Txheem Nto (Cov Khoom Siv Nanopowder)
-Cov khoom siv hmoov boron nano-coating uas muaj cov khoom purity siab tau muab tso rau ntawm cov substrate surfaces ntawm sputtering, muab cov khoom hauv qab no rau cov khoom:
oKev tiv thaiv kev hnav
oKev tiv thaiv corrosion
oKev tiv taus kub siab
o Kev tiv thaiv oxidation
oKev tiv thaiv kev laus
-Ua tau raws li qhov yuav tsum tau ua haujlwm hnyav ntawm cov cav aerospace thiab lwm qhov chaw ib puag ncig hnyav (piv txwv li, optoelectronic, cov khoom sib nqus).
Cov kev siv Amorphous Boron yog dab tsi?
I. Cov Roj thiab Cov Khoom Siv Uas Muaj Zog Heev
1. Cov Khoom Siv Rab Phom Ruaj Khob:Siv ua cov khoom siv zog siab los ua kom muaj zog hlawv thiab lub zog tshwj xeeb, tsim nyog rau cov foob pob tactical thiab cov tshuab aerospace booster.
2. Cov Roj Muaj Zog Siab Rau Cov Rockets Thiab Missiles:Siv rau hauv kev tsim cov tshuaj borane (piv txwv li, diborane, decaborane) ua cov khoom tseem ceeb ntawm cov kua lossis cov khoom siv roj muaj zog.
II. Kev Lag Luam Nuclear
1. Cov Khoom Siv Nqus Neutron:Siv qhov kev ntes neutron thermal siab ntawm Boron-10 (¹⁰B), siv rau hauv cov pas nrig tswj nuclear reactor, cov kab ke kaw thaum muaj xwm txheej ceev, thiab cov txheej tiv thaiv neutron.
2. Cov Neutron Counters:Txheej rau ntawm phab ntsa sab hauv ntawm cov khoom siv kuaj pom rau kev tshawb pom thermal neutron thiab kev tshuaj xyuas lub zog spectrum.
3. Boron Hlau Ntau Lawm:Siv ua cov khoom siv boron los ua cov hlau alloy tshwj xeeb (boron steel) rau cov khoom siv reactor thiab cov khoom tiv thaiv neutron.
III. Kev Tsim Kho Hluav Taws Xob thiab Hluav Taws Xob
1.Ignitor Electrodes rau Ignitrons:Tom qab carbonization ntawm 2300 ℃, siv ua cov ntaub ntawv cathode rau cov cores ignition nrog qis ignition threshold thiab siab ablation tsis kam.
2. Cov Khoom Siv Raw rau Cov Cathodes Ua Haujlwm ZooSiv los ua cov lanthanum hexaboride (LaB₆), uas yog ib qho cathode thermionic ruaj khov heev, siv tau ntev hauv cov tshuab microscopes thiab cov raj microwave muaj zog heev.
IV. Kev Ua Hlau thiab Kev Ua Khoom Siv
1. Kev Sib Txhuam Hlau Tshwj Xeeb:Kev ntxiv cov boron me me ua rau cov hlau tawv dua, lub zog kub siab, thiab kev tiv thaiv neutron irradiation zoo dua.
2. Roj Scavenger rau Molten Tooj Liab:Tshem tawm cov pa oxygen thiab lwm cov pa roj uas yaj ntawm cov tooj liab uas yaj kom txhim kho kev coj ua thiab qhov ceev.
3. Cov Khoom Siv Boron Fiber Uas Muaj Zog:Siv ua cov khoom siv tseem ceeb rau cov boron fibers hauv cov khoom siv aerospace thiab cov khoom siv kis las ua tau zoo.
V. Cov tshuaj catalysts thiab kev sib xyaw ua ke ntawm cov tshuaj lom neeg
1. Cov tshuaj lom neeg ua rau cov organic synthesis:Siv rau hauv kev xaiv hydrogenation, dehydrogenation, thiab kev hloov pauv kom zoo dua qub thiab kev xaiv.
2. Cov Catalysts Kev Lag Luam Ceramic:Txhawb kev sintering thiab densification ntawm boride ceramics (piv txwv li, TiB₂, ZrB₂).
3. Kev Tsim Cov Khoom Siv Boron Uas Muaj Peev Xwm Siab:Siv ua ib qho chaw boron los tsim cov tshuaj boric acid, sodium borohydride, boron nitride, thiab lwm yam tshuaj zoo.
4. Kev Npaj ntawm High-Purity Boron Halides:Siv los ua cov khoom siv high-purity BBr₃, BCl₃, thiab lwm yam, ua cov khoom siv semiconductor diffusion thiab optical fiber dopants.
VI. Cov Txheej Txheem Kev Nyab Xeeb Hauv Tsheb
-Cov Khoom Pib Ua Pa: Siv ua ib feem ntawm cov neeg sawv cev tsim roj; thaum sib tsoo, nws hlawv sai sai los tsim cov nitrogen siab thiab ua kom lub hnab cua npuas.
VII. Kev Lag Luam Hluav Taws Xob thiab Hluav Taws Xob
-Cov Tshuaj Tua Hluav Taws Xob: Tsim cov nplaim taws ntsuab thiab cov hluav taws xob ci ntsa iab thaum hlawv, siv rau hauv cov foob pob hluav taws, cov teeb liab, thiab cov khoom siv tub rog uas ci ntsa iab.
VIII. Cov Chaw Muag Tshuaj thiab Cov Khoom Siv Txog Kab Mob
-Cov Tshuaj Nruab Nrab: Siv rau hauv kev tsim cov tshuaj uas muaj boron (piv txwv li, boronophenylalanine) rau Boron Neutron Capture Therapy (BNCT), lossis ua cov khoom siv doping rau cov khoom siv antibacterial.
