Boron carbide yog ib qho inorganic compound nrog cov tshuaj formula B4C, feem ntau nyob rau hauv daim ntawv ntawm grey-dub micropowder. Nws muaj ntau yam zoo heev thiab ntau yam kev siv. 12
Cov yam ntxwv ntawm kev ua haujlwm:
Lub Mohs hardness ntawm boron carbide yog hais txog 9.5, thib ob tsuas yog pob zeb diamond thiab cubic boron nitride, thiab yog cov khoom siv tawv heev.
Nws muaj cov yam ntxwv ntawm siab hardness, siab zog, kub tsis kam, corrosion kuj, thiab zoo tshuaj stability.
Lub melting point ntawm boron carbide yog siab li 2450 degree, thiab nws muaj zoo hnav tsis kam thiab acid thiab alkali tsis kam.
Tsis tas li ntawd, boron carbide kuj muaj cov thermal conductivity tsawg, kub kub hluav taws xob conductivity thiab thermal stability zoo, uas ua rau nws muaj kev ua tau zoo nyob rau hauv qhov kub thiab txias.
Kev siv:
Daim ntawv thov kev lag luam: Boron carbide yog siv dav hauv cov ntaub ntawv hnav-tiv taus, cov txheej txheem ceramic reinforcement, hnav armor, reactor neutron absorbers thiab lwm yam.
Kev lag luam Nuclear: Vim tias boron carbide muaj peev xwm nqus tau cov neutron zoo thiab tsis tsim cov isotopes ntawm cov xov tooj cua, nws yog siv los tswj cov pas nrig thiab cov ntaub thaiv npog rau cov reactors nuclear, uas yuav pab tswj tus nqi ntawm nuclear fission.
Kev ua tub rog thiab kev tiv thaiv: Boron carbide yog siv los tsim cov phom phom phom rau cov khoom tiv thaiv tseem ceeb xws li cov tsho tiv thaiv cov mos txwv, cov tsheb tub rog, thiab cov nyoob hoom qav taub.
Kev lag luam kub kub: Hauv kev lag luam kub kub, boron carbide yog siv los tsim cov khoom kub, xws li piston rings thiab li qub, vim tias nws muaj cov kev xav tau qis rau cov roj zoo thiab muaj zog dua.
Daim ntawv thov kev siv hluav taws xob: Boron carbide thermocouples muaj qhov zoo ntawm qhov kub thiab txias, cov lus teb ceev ceev, kev tiv thaiv corrosion, thiab kev ruaj ntseg zoo, thiab tau siv dav hauv kev ntsuas cov khoom kub.
Nano boron carbide:
Nano boron carbide yog ib yam tshiab ntawm nanomaterial nrog zoo heev hardness thiab hnav tsis kam, piv rau pob zeb diamond, thiab yog dav siv nyob rau hauv abrasives, txiav cov cuab yeej, thiab sib tsoo cov ntaub ntawv.
Hauv cov ntsiab lus, boron carbide ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw vim nws lub cev thiab tshuaj lom neeg tshwj xeeb.