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Ifu ya Boron Carbide ikoreshwa iki?

Borbide karbide ni kirisiti yumukara ifite urumuri rwinshi, ruzwi kandi nka diyama yumukara, ikaba ari mubikoresho bitarimo ubutare.Kugeza ubu, abantu bose bamenyereye ibikoresho bya karbide ya boron, bishobora guterwa no gukoresha ibirwanisho bitagira amasasu, kubera ko bifite ubucucike buke mu bikoresho by’ubutaka, bifite ibyiza bya modulus yo mu rwego rwo hejuru kandi bikomeye, kandi bishobora kugera ku mikoreshereze myiza ya micro-frake kugirango ikuremo ibisasu.Ingaruka zingufu, mugihe ukomeje umutwaro muke bishoboka.Ariko mubyukuri, karbide ya boron ifite indi mico myinshi idasanzwe, ishobora gutuma igira uruhare runini mugukuraho ibintu, ibikoresho bivunika, inganda za kirimbuzi, ikirere nizindi nzego.

Ibyiza byaboron carbide

Kubireba imiterere yumubiri, ubukana bwa karbide ya boron ni nyuma ya diyama na cubic boron nitride, kandi irashobora gukomeza imbaraga nyinshi mubushyuhe bwinshi, bushobora gukoreshwa nkibikoresho byiza birinda ubushyuhe bwo hejuru;ubucucike bwa karbide ya boron ni nto cyane (ubucucike bwa theoretical ni 2,52 g / cm3 gusa), bworoshye kuruta ibikoresho bisanzwe bya ceramique, kandi birashobora gukoreshwa mukibuga cyindege;karbide ya boron ifite ubushobozi bukomeye bwo kwinjiza neutron, guhagarara neza k'ubushyuhe, hamwe no gushonga kwa 2450 ° C, bityo rero ikoreshwa cyane mu nganda za kirimbuzi.Ubushobozi bwa neutron bwo kwinjiza neutron burashobora kurushaho kunozwa wongeyeho ibintu B;boron carbide ibikoresho bifite morphologie yihariye nuburyo bifite imiterere yihariye yifoto;hiyongereyeho, karbide ya boron ifite aho ishonga cyane, modulus yo hejuru ya elastike, coeffisiyeti ntoya yo kwaguka kandi nziza Izi nyungu zituma ishobora kuba ibikoresho byifashishwa mubice byinshi nka metallurgie, inganda zikora imiti, imashini, icyogajuru ninganda za gisirikare.Kurugero, ibice birwanya ruswa kandi birinda kwambara, gukora ibirwanisho bitagira amasasu, inkoni zo kugenzura ibintu hamwe nibikoresho bya termoelektrike, nibindi.

Ku bijyanye n’imiti ya chimique, karbide ya boron ntabwo ikora na acide, alkalis hamwe n’ibintu byinshi bidakoreshwa mu bushyuhe bw’icyumba, kandi ntibishobora gukorana na gaze ya ogisijeni na gaze ya halogene ku bushyuhe bw’icyumba, kandi imiterere y’imiti irahagaze.Byongeye kandi, ifu ya karbide ya boron ikoreshwa na halogen nkumukozi wibyuma, kandi boron yinjiye hejuru yicyuma kugirango ikore firime ya boride yicyuma, bityo byongere imbaraga no kwambara birwanya ibikoresho, kandi imiterere yimiti ni nziza.

Twese tuzi ko imiterere yibikoresho igena imikoreshereze, none niyihe porogaramu ifu ya karbide ya boron ifite imikorere idasanzwe?Ba injeniyeri b'ikigo R&D cyaUrbanMines Tech.Co, Ltd. yakoze incamake ikurikira.

https://www.urbanmines.com/boron-carbide-product/                 https://www.urbanmines.com/boron-carbide-product/

Gushyira mu bikorwaboron carbide

1. Borb karbide ikoreshwa nka polishing abrasive

Gukoresha karbide ya boron nka abrasive ikoreshwa cyane mugusya no gusya safiro.Mubikoresho bya superhard, ubukana bwa karbide ya boron iruta iy'umwuka wa aluminium na karubide ya silicon, uwa kabiri nyuma ya diyama na nitride ya cubic.Safiro ni ibikoresho byiza cyane bya substrate ya semiconductor GaN / Al 2 O3 itanga urumuri (LEDs), imiyoboro minini ihuriweho na SOI na SOS, hamwe na firime ya nanostructure.Ubuso bwubuso buri hejuru cyane kandi bugomba kuba ultra-yoroshye Nta rwego rwo kwangirika.Bitewe n'imbaraga nyinshi hamwe n'uburemere bukabije bwa kirisiti ya safiro (Mohs hardness 9), yazanye ingorane zikomeye ku nganda zitunganya.

Urebye ibikoresho no gusya, ibikoresho byiza byo gutunganya no gusya kristu ya safiro ni diyama ya sintetike, karbide ya boron, karbide ya silicon, na dioxyde de silicon.Ubukomezi bwa diyama yubukorikori ni ndende cyane (Mohs hardness 10) mugihe usya wafer ya safiro, izashushanya hejuru, igire ingaruka kumurabyo wa wafer, kandi igiciro gihenze;nyuma yo guca karbide ya silicon, ubukana RA mubusanzwe buri hejuru kandi uburinganire ni bubi;Nyamara, ubukana bwa silika ntibuhagije (Mohs hardness 7), kandi imbaraga zo gusya zirakennye, ibyo bitwara igihe kandi bisaba akazi cyane mugusya.Kubwibyo, boron carbide abrasive (Mohs hardness 9.3) yahindutse ibikoresho byiza cyane byo gutunganya no gusya kristu ya safiro, kandi ifite imikorere myiza mugusya impande zombi za safiro no kunanura umugongo no gutonesha ibiti bya LED bya epitaxial.

Twabibutsa ko iyo karbide ya boron iri hejuru ya 600 ° C, ubuso buzahinduka okiside muri firime ya B2O3, ikazoroshya kurwego runaka, kubwibyo ntibikwiriye gusya byumye ku bushyuhe bwinshi cyane mubisabwa, gusa birakwiriye yo gusya amazi.Nyamara, uyu mutungo urinda B4C okiside kurushaho, bigatuma igira inyungu zidasanzwe mugukoresha ibikoresho byangiritse.

2. Gusaba mubikoresho byangiritse

Borb karbide ifite ibiranga anti-okiside hamwe nubushyuhe bwo hejuru.Ubusanzwe ikoreshwa nkibikoresho bigezweho kandi bidafite ishusho kandi ikoreshwa cyane mubice bitandukanye bya metallurgie, nk'itanura ryibyuma nibikoresho byo mu itanura.

Hamwe nogukenera ingufu zo kuzigama no kugabanya ibicuruzwa mu nganda zicyuma nicyuma no gushonga ibyuma bya karuboni nkeya hamwe nicyuma cya karuboni nkeya, ubushakashatsi niterambere ryamatafari ya karubone magneziya-karubone (muri rusange <8% bya karubone) hamwe nibikorwa byiza byakwegereye cyane inganda zo murugo no mumahanga.Kugeza ubu, imikorere y’amatafari make ya karubone magnesia-karubone muri rusange itezwa imbere mugutezimbere imiterere ya karubone ihujwe, guhindura imiterere ya matrix yamatafari ya magnesia-karubone, no kongeramo antioxydants ikora neza.Muri byo, ikoreshwa rya karubone igizwe ninganda zo mu rwego rwa boron karbide hamwe nigice cyashushanyijeho karubone umukara.Ifu yumukara wuzuye, ikoreshwa nkisoko ya karubone na antioxydeant ya matafari ya karubone nkeya-amatafari ya karubone, yageze kubisubizo byiza.

Kubera ko karbide ya boron izoroha ku rugero runaka ku bushyuhe bwo hejuru, irashobora kwomekwa ku buso bw’ibindi bice.Nubwo ibicuruzwa byiyongera, firime ya B2O3 ya okiside hejuru irashobora gukora uburinzi runaka kandi ikagira uruhare mukurwanya okiside.Muri icyo gihe, kubera ko inkingi ya kristu yakozwe na reaction ikwirakwizwa muri matrix no mu cyuho cyibikoresho bivunika, ubukana buragabanuka, imbaraga zubushyuhe bwo hagati ziratera imbere, kandi nubunini bwa kristu yabyaye bwagutse, bushobora gukiza ingano kugabanuka no kugabanya ibice.

3. Ibikoresho bitagira amasasu bikoreshwa mukuzamura ingabo zigihugu

Bitewe nuburemere bukomeye, imbaraga nyinshi, uburemere bwihariye, hamwe nu rwego rwo hejuru rwo kurwanya ballistique, karbide ya boron irahuye cyane cyane nuburyo bwibikoresho bitarasa amasasu.Nibikoresho byiza byamasasu birinda indege, ibinyabiziga, ibirwanisho, numubiri wabantu;kurubu,Ibihugu bimwebasabye ubushakashatsi buhendutse bwa boron karbide anti-ballistic ubushakashatsi, bugamije guteza imbere ikoreshwa ryinshi ryintwaro za boron karbide anti-ballistique mu nganda z’ingabo.

4. Gushyira mu bikorwa inganda za kirimbuzi

Carbide ya Boron ifite ibice byinshi byo kwinjiza neutron hamwe ningufu nini za neutron, kandi bizwi ku rwego mpuzamahanga nkibikoresho byiza bya neutron byinjira mu nganda za kirimbuzi.Muri byo, igice cyumuriro wa boron-10 isotope ni hejuru ya 347 × 10-24 cm2, icya kabiri nyuma yibintu bike nka gadolinium, samariyumu, na kadmium, kandi ni uburyo bwiza bwo gukoresha amashanyarazi ya neutron.Byongeye kandi, karbide ya boron ikungahaye ku mutungo, irwanya ruswa, itajegajega neza, ntabwo itanga isotopi ya radiyoyoka, kandi ifite ingufu nkeya za rayon, bityo karbide ya boron ikoreshwa cyane nkibikoresho byo kugenzura no gukingira ibikoresho bya reaction za kirimbuzi.

Kurugero, mu nganda za kirimbuzi, reaction yubushyuhe bwo hejuru ya gaze ikoreshwa na boron ikurura sisitemu yo guhagarika imipira nka sisitemu ya kabiri yo guhagarika.Mugihe habaye impanuka, mugihe sisitemu yambere yo guhagarika byananiranye, sisitemu ya kabiri yo guhagarika ikoresha umubare munini wa boron karbide pellets Ubuntu bugwa mumurongo wurwego rugaragaza urwego rwimikorere, nibindi, kugirango uhagarike reaction hanyuma umenye ubukonje. guhagarika, aho umupira ukurura ni umupira wa grafite urimo karbide ya boron.Igikorwa nyamukuru cyimikorere ya boron karbide mumashanyarazi yo hejuru ya gaze ikonjesha ni ukugenzura ingufu numutekano wa reaction.Amatafari ya karubone yinjijwemo na boron karbide neutron ikurura ibintu, bishobora kugabanya imishwarara ya neutron yumuriro wumuvuduko wa reaction.

Kugeza ubu, ibikoresho bya boride kumashanyarazi ya kirimbuzi birimo ibikoresho bikurikira: karbide ya boron (inkoni yo kugenzura, inkoni ikingira), aside ya boric (moderator, coolant), ibyuma bya boron (inkoni zo kugenzura nibikoresho byo kubika lisansi n’imyanda ya kirimbuzi), boron Europium (intangiriro yibikoresho byuburozi), nibindi