Boron Nitride Crucible BN Crucible
Umarnin Samfura
Boron Nitride, wanda kuma aka sani da BN, Hexagonal Boron Nitride (H-BN), da Boron Nitride mai zafi mai zafi, kyakkyawan yumbu ne mai mai mai da kansa wanda zai iya jure yanayin zafi da kuma kula da iyawar sa mai a cikin yanayi mara kyau.AEM's Boron Nitride crucibles an yi su ne daga bututun nitride mai zafi mai zafi.Hexagonal Boron Nitride (H-BN) yana aiki daidai da graphite mechanically amma yana ba da ingantaccen juriya na lantarki., Hakanan ana iya samarwa azaman samfuran ƙarshe na BN kai tsaye kamar crucible, jirgin ruwa, shafi, da sauransu.
Babban Siffofin
Boron nitride yana da ingantaccen rufin lantarki, ƙarancin zafin jiki, kwanciyar hankali na sinadarai, kuma babu madaidaicin narkewa.Matsakaicin zafin da ake amfani da shi a cikin 0.1MPA nitrogen zai iya kaiwa 3000 ° C, a cikin yanayin rage tsaka tsaki, zai iya jure zafi zuwa 2000 ° C, kuma zafin amfani da nitrogen da argon zai iya kaiwa 2800 ° C, kuma kwanciyar hankali a yanayin oxygen shine. mara kyau, kuma zafin amfani yana ƙasa da 1000 ° C.Matsakaicin faɗaɗa na boron nitride hexagonal yayi daidai da na ma'adini, amma yanayin zafi ya ninka na ma'adini sau goma.
Bugu da kari, boron nitride hexagonal ba ya narkewa a cikin ruwan sanyi, kuma idan aka tafasa ruwan, hydrolysis yana raguwa sosai kuma yana samar da ɗan ƙaramin boric acid da ammonia.Ba ya amsa tare da raunin acid da tushe mai ƙarfi a cikin zafin jiki, ɗan narkewa a cikin zafi acid, kuma yana buƙatar a bi da shi da narkakkar sodium hydroxide da potassium hydroxide don bazuwa.
| Tsarin Haɗaɗɗiya | BN | |
| Tsafta | >99.9% | |
| Nauyin Kwayoyin Halitta | 24.82 | |
| Matsayin narkewa | 2973 ° C | |
| Yawan yawa | 2.1 g/cm3 (h-BN);3.45g/cm3 (c-BN) | |
| Solubility a cikin H2O | Mara narkewa | |
| Mohs Hardness | 2 | |
| Ƙarfin Flexural | 35 Mpa | |
| Coefficient na Thermal Expansion | 2.0 x 10-6/K | |
| Thermal Conductivity a 20 ℃ | 40 W/mk | |
| Matsakaicin zafin Aiki | Oxidizing | 900 ℃ |
| Vacuum | 1900 ℃ | |
| Inert | 2100 ℃ | |
| Fihirisar Refractive | 1.8 (h-BN);2.5 (c-BN) | |
| Resistivity na Lantarki | 13 zuwa 15 10x Ω-m | |
| Iyawa | 25ml, 55ml, 75ml, 100ml, 1000ml, da kuma musamman | |
Aikace-aikacen samfur
Boron nitride wani nau'in juriya ne na zafin jiki, juriya na lalata, haɓakar haɓakar thermal, babban rufi da ingantaccen aikin lubrication na kayan, halin da ake ciki yanzu don sauƙaƙe tsarin, rage farashin samarwa, haɓaka rayuwar sabis na abubuwan haɗin gwiwa shine mafi aiki na yanzu. jagorar bincike na irin waɗannan kayan.
(1) Yin amfani da kyakkyawan kwanciyar hankali na sinadarai na hexagonal boron nitride, ana iya amfani dashi azaman crucibles, jiragen ruwa, bututun isar da ƙarfe na ruwa, bututun roka, sansanonin na'urori masu ƙarfi, narkar da bututun ƙarfe, sassan famfo, ƙirar simintin ƙarfe, da dai sauransu. narkewa evaporated karafa.
(2) Yin amfani da juriya na zafi da juriya na boron nitride hexagonal, abubuwan zafi masu zafi, rufin ɗakin konewar roka, garkuwar zafi na jirgin sama, janareta na magnetocurrent, da sauransu.
(3) Yin amfani da rufi na hexagonal boron nitride, ana amfani dashi sosai a cikin manyan wutar lantarki mai ƙarfin lantarki da na'ura na plasma arc da insulators na daban-daban heaters, dumama tube bushings da high-zazzabi, high-mita, high-voltage rufi da kuma ɓangarorin ɓarkewar zafi, da aikace-aikace mai yawa na kayan tanderun lantarki.
