Boron Nitride Crucible BN Crucible
Malangizo a Zamankhwala
Boron Nitride, yomwe imadziwikanso kuti BN, Hexagonal Boron Nitride (H-BN), komanso Boron Nitride yotenthedwa, ndi ceramic yabwino kwambiri yodzipaka mafuta yomwe imatha kupirira kutentha kwambiri ndikukhalabe ndi mphamvu yopaka mafuta m'malo opanda vacuum.Ma crucibles a AEM a Boron Nitride amapangidwa kuchokera ku boron nitride yopanda kanthu.Hexagonal Boron Nitride (H-BN) amachita chimodzimodzi ndi graphite umakaniko koma imapereka kukana kwamagetsi kwabwino, komanso imatha kupangidwa ngati zinthu zomaliza za BN mwachindunji monga crucible, bwato, zokutira, ndi zina zambiri.
Main Features
Boron nitride imakhala ndi magetsi abwino, kutentha kwa kutentha, kukhazikika kwa mankhwala, ndipo palibe malo osungunuka.Kutentha kwakukulu kogwiritsidwa ntchito mu 0.1MPA nayitrogeni kumatha kufika 3000 ° C, m'malo osalowerera ndale, kumatha kupirira kutentha mpaka 2000 ° C, komanso kutentha kwa nayitrogeni ndi argon kumatha kufika 2800 ° C, ndipo kukhazikika kwa mpweya wa oxygen ndi osauka, ndipo ntchito kutentha ndi pansi 1000 °C.Kukula kokwanira kwa hexagonal boron nitride ndikofanana ndi quartz, koma matenthedwe amatenthedwe kuwirikiza kakhumi kuposa quartz.
Komanso, hexagonal boron nitride si kupasuka m'madzi ozizira, ndipo pamene madzi owiritsa, ndi hydrolysis pang'onopang'ono ndipo umapanga pang'ono boric acid ndi ammonia.Sichimachita ndi asidi ofooka komanso maziko amphamvu pa kutentha kwa chipinda, kusungunuka pang'ono mu asidi otentha, ndipo amafunika kuthandizidwa ndi sodium hydroxide yosungunuka ndi potaziyamu hydroxide kuti awole.
| Compound Formula | BN | |
| Chiyero | > 99.9% | |
| Kulemera kwa Maselo | 24.82 | |
| Melting Point | 2973 °C | |
| Kuchulukana | 2.1 g/cm3 (h-BN);3.45 g/cm3 (c-BN) | |
| Kusungunuka mu H2O | Zosasungunuka | |
| Mohs Kuuma | 2 | |
| Flexural Mphamvu | 35 mpa | |
| Coefficient of Thermal Expansion | 2.0 x 10-6/K | |
| Thermal Conductivity pa 20 ℃ | 40 W / mk | |
| Maximum Ntchito Kutentha | Oxidizing | 900 ℃ |
| Vuta | 1900 ℃ | |
| Inert | 2100 ℃ | |
| Refractive Index | 1.8 (h-BN);2.5 (c-BN) | |
| Kukaniza Magetsi | 13 mpaka 15 10x Ω-m | |
| Mphamvu | 25ml, 55ml, 75ml, 100ml, 1000ml, ndi makonda | |
Product Application
Boron nitride ndi mtundu wa kukana kutentha kwambiri, kukana kwa dzimbiri, matenthedwe apamwamba kwambiri, kutchinjiriza kwakukulu ndi ntchito yabwino kwambiri yamafuta azinthu, momwe zinthu zilili pano kuti achepetse njira, kuchepetsa ndalama zopangira, kupititsa patsogolo moyo wautumiki wa zigawo zake ndizomwe zimagwira ntchito kwambiri. kafufuzidwe malangizo a zipangizo zoterezi.
(1) Kugwiritsa ntchito bwino mankhwala bata hexagonal boron nitride, angagwiritsidwe ntchito ngati crucibles, mabwato, madzi zitsulo yobereka mapaipi, rocket nozzles, mkulu-mphamvu chipangizo zapansi, mapaipi osungunuka zitsulo, mbali mpope, zitsulo kuponyera nkhungu, etc. kusungunula zitsulo zamphumphu.
(2) Kugwiritsa ntchito kutentha ndi dzimbiri kukana hexagonal boron nitride, zigawo zikuluzikulu kutentha, rocket kuyaka chipinda linings, spacecraft zishango kutentha, majenereta magnetocurrent, etc. akhoza kupanga.
(3) Kugwiritsa ntchito kutchinjiriza wa hexagonal boron nitride, chimagwiritsidwa ntchito kwambiri mu high-voltage high-frequency magetsi ndi plasma arc insulators ndi insulators zosiyanasiyana heaters, Kutentha chubu bushings ndi mkulu-kutentha, high-frequency, high-voltage insulation and zigawo zoziziritsira kutentha, komanso kugwiritsa ntchito pafupipafupi kwa zida za ng'anjo yamagetsi.
