Ufa wa hexagonal boron nitride cas 10043-11-5 Boron nitride (BN 99%) woyera kwambiri

Boron nitride Kapangidwe ka kristalo kamakhala ndi maatomu a nayitrogeni ndi boron mu kristalo, kapangidwe ka kristalo kangagawidwe m'magulu awa: hexagonal boron nitride (HBN), mizere yolimba ya hexagonal boron nitride ndi cubic boron nitride, kapangidwe ka kristalo ka hexagonal boron nitride kali ndi kapangidwe kofanana ka graphite, kotayirira, mafuta, kuyamwa mosavuta chinyezi, kuwala ndi makhalidwe ena a ufa woyera, nenani kachiwiri "graphite yoyera." Kuchuluka kwa chiphunzitso: 2.27g/ cm3, mphamvu yokoka: 2.43, kuuma kwa mossberg: 2.

Hexagonal boron nitride ili ndi kutchinjiriza kwamagetsi kwabwino, kutentha kopitilira muyeso, kukhazikika kwa mankhwala, palibe malo osungunuka omveka bwino, kutentha kopitilira muyeso mpaka 3000 ℃ mu 0.1 MPA nayitrogeni, mumlengalenga wochepetsera mpweya, kutentha kopitilira muyeso mpaka 2000 ℃, nayitrogeni ndi argon zimagwiritsidwa ntchito kutentha kumatha kufika 2800 ℃, kukhazikika koipa mumlengalenga wa okosijeni, kutentha kochepera 1000 ℃. Chowonjezera cha kukula kwa boron nitride ndi chofanana ndi cha quartz, koma kutentha kopitilira muyeso kumakhala kokwera kakhumi kuposa kwa quartz. Pa kutentha kwakukulu kumakhalanso ndi mafuta abwino, ndi mafuta olimba otentha kwambiri, ali ndi mphamvu yolimba ya kuyamwa kwa neutron, kukhazikika kwa mankhwala, pafupifupi zitsulo zonse zosungunuka zimakhala ndi kusakhala ndi mankhwala.

Hexagonal boron nitride yosasungunuka m'madzi ozizira, hydrolysis yowira m'madzi imachepa kwambiri ndipo imapanga asidi pang'ono a boric ndi ammonia, ndipo asidi wofooka ndi maziko olimba kutentha kwa chipinda sizimasinthasintha, zimasungunuka pang'ono mu asidi wotentha, ndi sodium hydroxide yosungunuka, chithandizo cha potaziyamu hydroxide chimatha kuwola. Chimalimbana bwino ndi dzimbiri ku mitundu yonse ya asidi osapangidwa, alkali, yankho la mchere ndi zosungunulira zachilengedwe.