Pyrolytic Boron Nitride Crucibles
Gabatarwa
Pyrolytic BN ko PBN gajere ne don pyrolytic boron nitride. Wani nau'i ne na boron nitride hexagonal hexagonal halitta ta hanyar sinadari mai tururi (CVD), kuma boron nitride ne mai tsafta mai tsafta wanda zai iya kaiwa sama da kashi 99.99%, wanda kusan babu porosity.
Tsarin
Kamar yadda aka bayyana a sama, pyrolytic boron nitride (PBN) memba ne na tsarin hexagonal. Tazarar intra-Layer atomic tazara shine 1.45 kuma tsaka-tsakin atomic tazarar tsakanin Layer shine 3.33, wanda shine babban bambanci. Tsarin tarawa na PBN ababab ne, kuma tsarin yana kunshe da musaya na atom na B da N a cikin Layer da gefen C, bi da bi.
Amfani
Kayan PBN yana da matuƙar juriya ga girgizar zafi kuma yana da jigilar zafi mai matuƙar anisotropic (dangane da kai tsaye). Bugu da ƙari, PBN yana yin insulator mafi girma. Abun ya tsaya tsayin daka cikin rashin aiki, ragewa, da oxidizing yanayi har zuwa 2800°C da 850°C, bi da bi.
Dangane da samfur, ana iya ƙirƙirar PBN zuwa abubuwa na 2D ko 3D kamar crucibles, jiragen ruwa, faranti, wafers, bututu, da kwalabe, ko ana iya amfani dashi azaman shafi zuwa graphite. Yawancin karafa da aka narkar da su (Al, Ag, Cu, Ga, Ge, Sn, da dai sauransu), acid, da ammonia mai zafi suna cikin yanayin da PBN ke nuna kwanciyar hankali na musamman lokacin da aka lullube shi akan graphite har zuwa 1700 ° C, yana tsayayya da girgiza thermal, kuma yana tsayayya da lalata gas.
Samfura
PBN Crucible: PBN Crucible shine kwandon da ya fi dacewa don samar da lu'ulu'u masu kama da juna guda ɗaya, kuma ba za a iya maye gurbinsa ba;
A cikin tsarin MBE, shi ne madaidaicin akwati don fitar da abubuwa da mahadi;
Hakanan, ana amfani da pyrolytic boron nitride crucible azaman akwati mai fitar da ruwa a cikin layin samar da OLED.
PG/PBN Heater: PBN yuwuwar aikace-aikace masu dumama dumama sun haɗa da dumama MOCVD, dumama ƙarfe, dumama dumama, dumama dumama na'ura mai ƙarfi, dumama gwajin ƙima, dumama na'urar microscope na lantarki, dumama substrate na semiconductor, da sauransu.
Sheet/Ring na PBN: PBN yana da keɓaɓɓen kaddarorin a yanayin zafi mai girma, kamar tsaftarsa mai girma da ikon jure dumama zuwa 2300 °C a cikin injin daskarewa mai tsayi ba tare da rubewa ba. Bayan haka, ba ya fitar da gurɓataccen iskar gas. Irin waɗannan kaddarorin kuma suna ba da damar sarrafa PBN zuwa nau'ikan geometric iri-iri.
PBN Rufaffen Graphite: PBN yana da yuwuwar zama ingantaccen sinadarin fluoride mai jika wanda, idan aka yi amfani da shi akan graphite, na iya dakatar da hulɗar tsakanin kayan. Don haka, ana yawan amfani da shi don kare abubuwan graphite a cikin injina.
PBN Material a cikin tsarin TFPV
Yin amfani da kayan PBN a cikin tsarin TFPV(siƙarƙarin fim ɗin hoto) yana taimakawa rage tsadar ajiya kuma yana haɓaka haɓakar ƙwayoyin PV da ke haifarwa, yin hasken rana mai arha don ƙirƙirar azaman hanyoyin tushen carbon.
Kammalawa
Yawancin masana'antu suna samun amfani mai yawa don pyrolytic boron nitride. Ana iya danganta amfani da shi ga wasu kyawawan halayensa, gami da kyakkyawan tsafta da juriya na lalata. Har yanzu ana nazarin yuwuwar aikace-aikacen pyrolytic boron nitride a fannoni daban-daban.
