Boron Nitride - Cov txheej txheem tiv thaiv rau Spacecraft

Boron Nitride - Ib txheej tiv thaiv rau Spacecraft

Raws li peb txuas ntxiv tshawb nrhiav qhov chaw, kev tiv thaiv peb lub dav hlau los ntawm cov ntsiab lus hnyav yog qhov tseem ceeb. Ib yam khoom uas tau dhau los ua qhov tseem ceeb rau lub hom phiaj no yog boron nitride. Cov khoom zoo tshaj plaws no muaj ntau yam khoom tshwj xeeb uas ua rau nws muaj kev tiv thaiv zoo tshaj plaws rau lub dav hlau.

Boron nitride yog ib qho sib xyaw nrog cov qauv zoo ib yam li graphite. Txawm li cas los xij, tsis zoo li graphite, boron nitride yog ib qho zoo heev conductor ntawm tshav kub. Qhov no ua rau nws yog ib qho khoom siv zoo tshaj plaws rau dissipating cov cua sov uas tsim los thaum rov nkag mus rau hauv lub ntiaj teb huab cua.

Ntxiv rau nws cov khoom siv thermal, boron nitride kuj tseem tiv taus cov tshuaj thiab hluav taws xob. Qhov no yog qhov tseem ceeb thaum xav txog ntau yam teeb meem tshwm sim hauv qhov chaw xws li hnub ci hluav taws xob thiab micrometeoroids.

Lwm qhov zoo ntawm boron nitride yog nws cov coefficient tsawg ntawm kev sib txhuam. Qhov no txhais tau hais tias nws tuaj yeem siv los ua cov roj nplua nyeem los txo qhov hnav thiab tsim kua muag ntawm cov khoom txav. Tsis tas li ntawd, boron nitride coatings tuaj yeem siv los tiv thaiv corrosion thiab ncua lub neej ntawm cov khoom tseem ceeb.

NASA tau nquag tshawb nrhiav kev siv boron nitride ua txheej txheej tiv thaiv rau lub dav hlau. Nyob rau hauv xyoo tas los no, boron nitride coatings tau siv rau lub tshav kub shields ntawm spacecraft los txhim kho lawv cov durability thiab kev cia siab rau. Qhov no tau ua rau muaj kev nyab xeeb ntxiv rau cov neeg caij astronauts thiab txo cov nqi rau kev tshawb nrhiav qhov chaw.

Hauv kev xaus, boron nitride yog cov khoom siv zoo kawg nkaus uas muaj ntau yam khoom tshwj xeeb uas ua rau nws muaj kev tiv thaiv zoo tshaj plaws rau lub dav hlau. Nws muaj peev xwm ua kom cov cua sov dissipate, tiv thaiv cov tshuaj thiab hluav taws xob, thiab txo kev sib txhuam ua rau nws yog ib qho cuab yeej tseem ceeb rau kev tshawb nrhiav qhov chaw. Raws li peb txuas ntxiv mus thawb cov ciam teb ntawm qhov muaj peev xwm ua tau hauv qhov chaw, boron nitride yuav tsis muaj qhov xav tau ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb thiab ua tiav ntawm txoj haujlwm yav tom ntej.

Shengyang New Material Co., Ltd. tau cog lus rau kev tsim cov boron nitride thiab boron nitride ua cov khoom, thiab tuaj yeem kho ntau yam boron nitride insulating ceramic qhov chaw raws li cov neeg siv khoom xav tau. Tiv tauj peb yog tias tsim nyog.
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