(Zithunzi za BNZopangidwa ndiWintrustek)
Boron nitridendi ceramic yopangidwa mwaluso kwambiri yomwe imabwera muufa ndi mawonekedwe olimba.Boron nitridendi chinthu chapadera kwambiri chifukwa cha makhalidwe ake apadera, omwe amaphatikizapo kutentha kwakukulu, kutentha kwapadera kwapadera, kuphweka kwa makina, lubricity, low dielectric constant, ndi mphamvu zowonjezera dielectric.
Boron nitrideNthawi zambiri amatchedwa "white graphite" mu mawonekedwe ake olimba chifukwa cha mawonekedwe ake ofanana ndi graphite. Komabe, mosiyana ndi graphite, boron nitride ndi insulator yabwino yamagetsi yokhala ndi kutentha kwakukulu kwa okosijeni. Imakhala ndi matenthedwe amphamvu komanso kukana kugwedezeka kwamafuta ndipo imatha kupangidwa kuti itseke kulolerana pafupifupi pafupifupi mawonekedwe aliwonse. Ndi okonzeka kugwiritsa ntchito pambuyo Machining ndipo safuna zina kutentha mankhwala kapena moto njira.
Ubwino:
Wabwino makina
Ochepa kachulukidwe
Kutentha kwakukulu kwa conductivity
High resistivity magetsi
Good chemical inertness
Zabwino kwambiri kutentha kugwedezeka
Zosagwirizana ndi dzimbiri
Nowetting
Ma dielectric otsika (k=4)
Anisotropic (matenthedwe matenthedwe amasiyanasiyana pakati pa ndege zofananira ndi perpendicular kupita komwe akukankhira).
Zida zotentha kwambiri
Mphamvu yakuwonongeka kwa dielectric> 40 KV/mm
40 KV/mm
Mapulogalamu:
1. High-Temperature Metallurgy ndi Semiconductor:
Maboti a Evaporation: Amagwiritsidwa ntchito poyika filimu ya vacuum aluminiyamu, chinthu chofunikira kwambiri pabizinesi yolongedza zinthu (monga matumba olongedza chakudya).
Zida zosungunula zitsulo zimaphatikizapo zitsulo, mapaipi, ndi mphuno zoperekera aluminiyamu yosungunuka, komanso ogawa ndi zigawo za valve zosungunula zitsulo zoyera kwambiri kapena semiconductors.
Mphete Zolekanitsa Zosasunthika Zosalekeza: Onetsetsani kuti kugwetsa kosalala ndi kutha kwa pamwamba pakupanga chitsulo kapena mkuwa mosalekeza.
2. Electronics, Electrical Engineering, Thermal Management:
Magawo Ochepetsa Kutentha: Amagwiritsidwa ntchito mu ma LED amphamvu kwambiri, zida za ma radio frequency microwave, ma module a IGBT, ndi mapulogalamu ena kuti akwaniritse bwino kwambiri zotsekera magetsi komanso kusinthasintha kwa kutentha.
Zida zamagetsi zomwe zimakhala ndi mphamvu zambiri zimaphatikizapo zotenthetsera kutentha kwambiri, ma plasma arc nozzles, ndi zida zosinthira zamphamvu kwambiri.
3. Zamlengalenga ndi Chitetezo:
Mawindo a Radar ndi Radomes: Onetsani zinthu zabwino kwambiri zowonekera bwino (zowonekera ku ma microwave) ndipo zimatha kupirira kugwedezeka kwa matenthedwe a aerodynamic, omwe amagwiritsidwa ntchito muzoponya, radar, ndi zida zina.
Mafuta Otentha Kwambiri: Amagwiritsidwa ntchito pamayendedwe, njanji zowongolera, ndi zovuta zina.
Njira Zodzitetezera:Ngakhaleboron nitride
imadziwika kuti "ceramic yosavuta kugwiritsa ntchito," mfundo zotsatirazi zimafunikirabe chidwi pakukonza kwenikweni:
Kusankha zida: Zida zachitsulo zothamanga kwambiri kapena carbide zimalimbikitsidwa.
