Pyrolytic Boron Nitride Crucibles
Taw qhia
Pyrolytic BN lossis PBN yog luv rau pyrolytic boron nitride. Nws yog ib hom hexagonal boron nitride tsim los ntawm cov tshuaj vapor deposition (CVD) txoj kev, kuj yog ib qho ntshiab boron nitride uas muaj peev xwm ncav cuag ntau tshaj 99.99%, npog yuav luag tsis muaj porosity.
Qauv
Raws li tau piav saum toj no, pyrolytic boron nitride (PBN) yog ib tug tswv cuab ntawm hexagonal system. Qhov sib txawv ntawm cov atomic qhov sib txawv yog 1.45 thiab qhov sib txawv ntawm cov atomic qhov sib txawv yog 3.33, uas yog qhov sib txawv tseem ceeb. Lub stacking mechanism rau PBN yog ababab, thiab cov qauv yog ua los ntawm alternating B thiab N atoms nyob rau hauv lub txheej thiab raws li C axis, feem.
Qhov zoo
Cov khoom siv PBN tsis tshua muaj kev tiv thaiv thermal shock thiab muaj anisotropic heev (nyob ntawm qhov chaw) thermal thauj. Tsis tas li ntawd, PBN ua rau cov hluav taws xob zoo tshaj plaws. Cov khoom yog ruaj khov nyob rau hauv inert, txo, thiab oxidizing cua mus txog 2800 ° C thiab 850 ° C, feem.
Hais txog cov khoom, PBN tuaj yeem tsim rau hauv 2D lossis 3D cov khoom xws li crucibles, nkoj, phaj, wafers, raj, thiab fwj, lossis nws tuaj yeem siv los ua cov txheej rau graphite. Feem ntau ntawm cov hlau molten (Al, Ag, Cu, Ga, Ge, Sn, thiab lwm yam), cov kua qaub, thiab kub ammonia yog cov xwm txheej uas PBN ua kom pom qhov ntsuas kub tshwj xeeb thaum coated ntawm graphite mus txog 1700 ° C, tiv thaiv thermal shock. , thiab resists gas corrosion.
Khoom
PBN Crucible: PBN crucible yog lub thawv tsim nyog tshaj plaws rau kev tsim cov khoom sib xyaw semiconductor ib leeg muaju, thiab nws tsis tuaj yeem hloov tau;
Hauv cov txheej txheem MBE, nws yog lub thawv zoo tagnrho rau evaporating cov ntsiab lus thiab cov khoom sib txuas;
Tsis tas li ntawd, cov pyrolytic boron nitride crucible yog siv los ua lub thawv ntim khoom hauv OLED cov kab ntau lawm.
PG/PBN Rhaub: PBN rhaub muaj peev xwm siv tau xws li MOCVD cua sov, Hlau cua sov, evaporation cua sov, superconductor substrate cua sov, qauv ntsuas cua sov, electron microscope qauv cua sov, semiconductor substrate cua sov, thiab hais txog.
PBN Sheet / Nplhaib: PBN muaj cov khoom tshwj xeeb ntawm qhov kub thiab txias, zoo li nws cov purity siab thiab muaj peev xwm tiv taus cua sov rau 2300 ° C hauv lub tshuab nqus tsev ultra-siab yam tsis muaj decomposing. Tsis tas li ntawd, nws tsis tso pa tawm cov pa paug. Cov yam ntxwv no tseem tso cai rau PBN ua tiav rau ntau yam geometry.
PBN Coated Graphite: PBN muaj peev xwm ua tau zoo fluoride ntsev wetted cov ntaub ntawv uas, thaum siv rau graphite, yuav nres kev sib cuam tshuam ntawm cov ntaub ntawv. Yog li, nws nquag siv los tiv thaiv cov graphite Cheebtsam hauv tshuab.
PBN Material in the TFPV process
Kev siv cov khoom siv PBN hauv TFPV (thin film photovoltaic) txheej txheem yuav pab txo tus nqi ntawm kev tso nyiaj thiab ua kom cov txiaj ntsig ntawm PV hlwb, ua rau hnub ci hluav taws xob pheej yig los tsim raws li cov txheej txheem carbon.
Xaus
Ntau lub lag luam pom kev siv ntau heev rau pyrolytic boron nitride. Nws txoj kev siv dav tuaj yeem raug ntaus nqi rau qee qhov ntawm nws qhov zoo heev, suav nrog kev purity zoo heev thiab kev tiv thaiv corrosion. Lub peev xwm siv cov pyrolytic boron nitride hauv ntau qhov chaw tseem tab tom kawm.
