Boron Carbide yog cov tawv dub nrog nws yog xim hlau luster, tseem hu ua pob zeb diamond dub, uas yog rau cov ntaub ntawv tsis muaj xim hlau. Nyob rau tam sim no, txhua tus paub txog cov khoom ntawm Boron carbide, vim tias nws muaj qhov zoo tshaj plaws ntawm cov khoom siv hluav taws xob siab, muaj peev xwm ua tiav cov khoom siv hluav taws xob siab, thiab tuaj yeem ua tiav cov khoom siv micro loj. Cov nyhuv ntawm lub zog, thaum khaws cov thauj khoom qis li sai tau. Tab sis qhov tseeb, Boron carbide muaj ntau lwm yam muaj feem cuam tshuam, uas tuaj yeem ua rau nws ua cov ntaub ntawv tsis sib xws hauv kev lag luam, kev lag luam nuclear, aerospace thiab lwm thaj teb.
Cov khoom ntawmBoron carbide
Hais txog cov khoom siv lub cev, lub hardness ntawm boron carbide tsuas yog tom qab lub zog siab thiab yog qhov zoo tshaj plaws-kub hnav-resistant; Qhov ntom ntawm Boron carbide yog qhov tsawg heev (theoretical tuab yog tsuas yog 2.52 g / cm3), sib dua dua li cov ntaub ntawv ceramic zoo ib txwm; Boron Carbide muaj cov muaj zog nruab nrab kev nqus muaj peev xwm, zoo thermal stability, thiab lub zog melting ntawm 2450 ° C, yog li nws tseem dav siv nyob rau hauv kev lag luam nuclear. Neutron Kev nqus lub peev xwm ntawm cov neutron tuaj yeem txhim kho txuas ntxiv los ntawm kev ntxiv b cov lus; Boron Carbide cov ntaub ntawv nrog cov kev paub meej morphology thiab cov qauv kuj muaj cov khoom tshwj xeeb yees duab duab; Ib qho ntxiv, Boron Carbide muaj lub siab melting point, High Elastic Modulus, tsis muaj kev lag luam me me, tshuab kev lag luam, tshuab, aerospace thiab kev lag luam tub rog. Piv txwv, corrosion-resistant thiab hnav-resistant seem, ua cov pob zeb tiv thaiv, reactor tswj cov pas nrig thiab cov khoom thermoelectric, thiab lwm yam.
Nyob rau hauv cov nqe lus ntawm cov khoom siv tshuaj, boron carbide tsis hnov qab nrog cov kua qaub, thiab cov tshuaj lom neeg feem ntau ntawm chav sov, thiab nws cov tshuaj lom neeg yog qhov ruaj khov. Tsis tas li ntawd, Borbide hmoov yog ua kom zoo li ib tug hlau borides ua yeeb yam thiab hnav cov tshuaj tiv thaiv ntawm cov khoom, thiab cov tshuaj lom neeg kuj zoo heev.
Peb txhua tus paub tias cov khoom ntawm cov khoom txiav txim siab siv, yog li nyob rau hauv cov ntawv thov twg boron carbide hmoov muaj kev ua tau zoo?Cov engineers ntawm R & D Center ntawmNroog Usbat Tech.Co., Ltd. Ua cov ntsiab lus hauv qab no.
Daim ntawv thov ntawmBoron carbide
1. Boron Carbide yog siv los ua polibras
Daim ntawv thov ntawm Boron carbide li cov abrasive yog siv rau kev sib tsoo thiab polishing ntawm sapphire. Ntawm cov ntaub ntawv superhaard, lub hardness ntawm boron carbide zoo dua li ntawd ntawm txhuas oxide thiab sillicon carbide, thib ob tsuas yog pob zeb diamond thiab cubic boron nitride. Sapphire yog qhov zoo tshaj plaws substrate cov khoom rau semiconductor gan / al 2 lub teeb sib xyaw ua ke Soi thiab Sosconducting nanostruction nanostructure zaj duab xis. Lub smoothness ntawm saum npoo yog heev thiab yuav tsum yog ultra-du tsis muaj degree ntawm kev puas tsuaj. Vim lub zog siab thiab siab tawv ntawm sapphirerystal (mohs hardness 9), nws tau coj cov teeb meem loj rau kev ua lag luam.
Los ntawm cov kev pom ntawm cov ntaub ntawv thiab kev sib tsoo, cov ntaub ntawv zoo tshaj plaws rau kev ua thiab sib tsoo sapphetic pob zeb diamond, Boron carbide, thiab silicon dioxide. Lub hardness ntawm cov khoom siv dag ntxias yog siab dhau (mohs hardness 10) Thaum sib tsoo lub sapphire wafer, nws yuav cuam tshuam rau qhov chaw sib txuas lus, thiab tus nqi yog kim; Tom qab txiav cov carlicon carbide, lub roughning ra feem ntau yog siab thiab lub tiaj tiaj yog neeg pluag; Txawm li cas los xij, lub hardness ntawm silica tsis txaus (mohs hardness 7), thiab kev sib tsoo zog yog tsis zoo, uas yog lub sij hawm-noj thiab zog-intensive hauv cov txheej txheem sib tsoo. Yog li ntawd, Boron carbid abrasive (mohs hardness 9.3) tau dhau los ua ob tog ua ke thiab sib tsoo ntawm sapphire sapphire-raws li kev xaiv tsa epitaxial wafers.
Nws yog tsim nyog teev uas thaum Boron Carbide yog siab dua 600 ° C, qhov no yuav muag rau qhov kub thiab txias, tsuas yog haum rau polishing kua grind. Txawm li cas los xij, cov cuab yeej no tiv thaiv B4C los ntawm ua oxidized txuas ntxiv, ua nws muaj cov txiaj ntsig tshwj xeeb hauv daim ntawv thov cov ntaub ntawv refractory.
2. Daim ntawv thov hauv cov ntaub ntawv refractory
Boron Carbide muaj cov yam ntxwv ntawm kev tawm tsam oxidation thiab kub ua yeeb yam. Nws yog feem ntau siv ua cov ntaub ntawv qib siab thiab tsis muaj cuab yeej siv hluav taws xob thiab tau siv dav hauv ntau daim duab me me, xws li cov rooj tog steel thiab kiln rooj tog.
Nrog rau cov kev xav tau ntawm lub zog txuag thiab kev siv tau rau hauv cov hlau thiab kev tshawb fawb cov roj carbon thiab ntau dua los ntawm cov khoom siv roj carbon thiab ntau dua ultrasonic. Tam sim no, kev ua yeeb yam ntawm cov roj ntsha tsawg Ntawm lawv, graphitized carbon composed ntawm industrial-qib boron carbide thiab ib feem graphitized carbon dub siv. Cov hmoov dub sib xyaw ua hmoov, siv ua cov pa roj carbon thiab antioxidant rau cov pa roj carbon cov roj ntsha magnesia-carbon cib, tau ua tiav cov txiaj ntsig zoo.
Vim tias Boron Carbide yuav muag rau qee yam ntawm qhov kub, nws tuaj yeem txuas rau saum npoo ntawm lwm cov khoom siv. Txawm hais tias cov khoom lag luam yog qhov tseem ceeb, B2O3 oxide zaj duab xis nyob rau saum npoo muaj qee yam kev tiv thaiv thiab ua si tawm tsam kev tiv thaiv oxidation. Nyob rau tib lub sijhawm, vim tias cov khoom siv muaj muaj cov tshuaj tiv thaiv muaj cov tshuaj tiv thaiv muaju, qhov uas tuaj yeem hloov kho kom zoo dua qub, uas tuaj yeem kho cov shrinkage thiab txo cov kab nrib pleb.
3. Cov ntaub ntawv luv luv siv los txhim kho kev tiv thaiv hauv tebchaws
Vim nws lub siab tawv, lub zog loj, cov kev sib tsoo me me, thiab qib siab ntawm ballbide tiv thaiv, borbide yog tshwj xeeb tshaj yog nyob rau hauv txoj kab ntawm lub teeb ntawm cov khoom lag luam me me. Nws yog cov ntawv xov xwm zoo tshaj plaws rau kev tiv thaiv ntawm cov dav hlau, tsheb, tej cuab yeej, thiab tib neeg lub cev; Tam sim no,Ib txhia lub tebchawsTau npaj siab Boron carbide anti-bolristic archor archor armor hauv boron carbide ari-ballistic armor hauv kev tiv thaiv kev lag luam.
4. Daim ntawv thov nyob rau hauv kev lag luam nuclear
Boron Carbide muaj qhov siab nruab nrab kev nqus cov khaub lig-ntu thiab cov chaw nruab nrab lub zog hluav taws xob spectrum, thiab yog qhov zoo tshaj plaws neutron ua haujlwm rau kev lag luam nuclear. Ntawm lawv, lub thermal seem ntawm boron-10 isotope yog siab npaum li 347 × 10-24 CM2, thib ob tsuas yog rau ob peb lub ntsiab lus xws li gadolinium, thiab cadmium, thiab yog cov thermal neutrien. Ib qho ntxiv, Boron Carbide yog nplua nuj nyob rau hauv cov peev txheej, corrosion-resistant, zoo heev boron carbide yog dav siv raws li cov ntaub ntawv tswj thiab ntaub thaiv npog hauv nuclear reactors.
Piv txwv li, hauv kev lag luam nuclear, cov roj kub-txias reactor siv Boron nqus pob shutdown system raws li qhov thib ob shutdown system. Thaum muaj kev sib tsoo, thaum thawj zaug kaw lub cev tsis ua tiav, thiab lwm yam. Lub luag haujlwm tseem ceeb ntawm Boron Carbide cov tub ntxhais nyob rau hauv qhov kub roj roj-txias reactor yog los tswj lub zog thiab kev nyab xeeb ntawm tus reactor. Cov carick yog impregnated nrog boron carbide neutron nqus cov khoom siv, uas tuaj yeem txo cov i reactor siab ntsha.
Tam sim no, boride cov ntaub ntawv rau nuclear reactors tsuas yog suav nrog cov khoom siv hauv qab no), coronaring rauv (tswj hwm