Hexagonal Boron Nitride Foda
boron nitride foda sune kayan tsabta masu tsabta da ake amfani da su a cikin aikace-aikacen sarrafa ƙarfe waɗanda ke ba da ƙarfin zafi, lantarki rufi da lubrication Properties. Aikace-aikace na gama gari na wannan kayan suna maye gurbin graphite tare da waxes na halitta ko mai don haɓaka aiki.
hexagonal boron nigride (h-BN) alfahari na kwarai kaddarorin kamar babban zafin jiki kwanciyar hankali, sinadarai juriya ga narkakkar karafa da ƙarancin haɓakar haɓakar thermal; haka kuma ana iya sarrafa shi.
Thermal Conductivity
Ƙarfafawar thermal (kuma ake magana a kai “k” ko lambda) na kayan yana auna yadda zafi ke tafiya cikin sauƙi a cikin su, kuma yayi daidai da yanayin zafin jiki a fadin wancan kayan. Convection and radiation are other means of heat transfer that use different approaches; thermal conductivity offers one possible answer.
Metals tend to have higher thermal conductivities than non-metals due to being better conductors of phonons – energy carriers found within solids – than non-metallic materials, yet non-metallic thermal conductivity can still be high, making a material’s thermal conductivity an integral factor for its design as it determines how quickly heat can flow through.
we offer industrial grade spherical, cubical hexagonal and wurzite boron nitride powder in coarse and fine mesh sizes that are suitable for various applications. Our ceramic powders conform to different grades such as Mil Spec; ACS Reagent Technical Grade; Food, Agricultural Pharmaceutical; EP/BP USP Grade.
Electrical Insulation
Hexagonal boron nitride shine insulator na lantarki tare da ingantaccen yanayin zafi, alfahari high dielectric ƙarfi da low asara factor – cikakke don tsayayya da zafin karfe ko gilashin zafi da kuma hawan zafi yayin amfani. Abubuwan da za su iya jurewa injin keke da zafi suna sa boron nitride hexagonal ya dace da amfanin masana'antu da yawa..
Hexagonal boron nitride (h-BN) wani farin m abu ne mai siffar lu'ulu'u hexagonal mai kama da graphite; duk da haka, sabanin carbon graphite abu ne mai tsaftar yumbu wanda ke ba da kwanciyar hankali na sinadarai da juriya ta thermal.
Covalent B-N bonding a cikin h-BN yadudduka yana sauƙaƙe jigilar phonon a cikin jiragen basal na tsarin sa.. Lokacin da aka haɗa tare da ƙarancin atomic mass da ƙirar lattice lokaci-lokaci, wannan yana sauƙaƙawa thermal conductivity a cikin jiragen saman sa. Duk da haka, Ƙarfinsa mai ƙarfi da tazarar bandeji mai faɗi yana hana electrons motsi cikin yardar kaina da haɓaka jigilar wutar lantarki – ma'ana anisotropy yana nufin yana gudanar da mafi kyawu daidai gwargwado ga yadudduka fiye da layi daya.
Cubic Boron Nitride (c-BN), kama da tsarin lu'u-lu'u na lu'u-lu'u kuma don haka ya fi takwaransa na h-BN wuya, yana yin kayan aikin injiniya na musamman kuma yana aiki azaman mai mai inganci mai inganci.
Sinadarin rashin kuzari
Kayayyakin da aka yi ado kamar graphite, hexagonal boron nitride (h-BN), da kuma cubic boron nitride (c-BN) duk suna da halaye na musamman na sinadarai da na zahiri waɗanda ke sa su zama mafita masu mahimmanci ga matsaloli masu wahala a yanayin yanayin zafi mai ƙarfi. A halin yanzu muna samar da foda mai tsabta na BN da masu ɗaure wanda za'a iya matsawa da zafi a cikin billet kafin a sanya su cikin sanduna., bars or custom shapes to address demanding thermal management applications.
h-BN and c-BN materials are chemically inert, offering superior resistance against acid, bases, salts, corrosion and erosion in extreme environments. As such, they make ideal refractory coatings and fixtures for metal casting and smelting equipment, resist corrosion from molten metals and provide exceptional lubrication properties.
h-BN’s weak interactions between its layers render it nontoxic and lubricious at temperatures up to 1800 degC when in an inert atmosphere, providing a superior alternative for traditional dry lubricants like molydenum disulphide or graphite. Furthermore, its low neutron absorption cross section protects both equipment and people from radiation-emitting nuclear reactors.
Thermal Stability
Boron nitride mai zafi yana fitowa a matsayin foda na masana'antu saboda ƙarfin haɗin gwiwa mai ƙarfi a cikin kristal da yawa., kula da tsarinsa a yanayin zafi mai zafi sabanin aluminum nitride da beryllium oxide powders wanda ke rushewa a cikin damuwa.. As such, BN na iya rage juzu'i tsakanin filaye yayin inganta injina don aikace-aikace gami da sarrafa ƙarfe, kyawon tsayuwa, da tsarin injiniya.
Har yanzu kuma, mu tara mutanen kasashe daban-daban don tafiya mai ban mamaki ta al'adu, kimiyya da fasaha! Buron nitride powders ɗinmu sun yi fice a matsayin ƙwararrun ƙoshin zafi mai ƙarfi da abubuwan ƙari na abrasive, tare da boron nitride hexagonal (h-BN) kasancewa mai fa'ida musamman saboda ƙarancin haɗin kai da juriya da lalacewar injina. H-BN kuma yana samar da kyakkyawan kayan farawa yayin haɗa cubic boron nitride (c-BN), mafi wuya kuma mafi thermally barga yumbu samuwa, amfani da kayan aikin yankan, masana'antu abrasives da Aerospace sassa. BN powders suna ba da tsabta ta musamman, inganci, da aikin da ya sa su zama kayan abinci mai kyau don wannan tsari. As such, Amfani da su yana ba da garantin cewa c-BN ɗin da aka samar ya dace da ƙayyadaddun ƙayyadaddun aikace-aikacen masana'antu daban-daban daga rufin garkuwar thermo don transistor zuwa ƙari na polymer..