Vim li cas Hexagonal Boron Nitride muaj cov thermal conductivity zoo li cov khoom siv insulating

Hexagonal boron nitride (h-BN)Nws muaj cov thermal conductivity zoo txawm tias yog cov khoom siv insulating. Qhov no yog vim nws cov qauv siv lead ua tshwj xeeb, uas muaj boron thiab nitrogen atoms teem rau hauv hexagonal lattice. Lub zog covalent kev sib txuas ntawm cov atoms tso cai rau kev hloov pauv ntawm tshav kub.

Tsis tas li ntawd, h-BN muaj cov thermal stability siab, uas txhais tau hais tias nws tuaj yeem tiv taus qhov kub thiab txias yam tsis tau tawg. Qhov no ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev siv nyob rau hauv qhov chaw kub kub.

Tsis tas li ntawd, h-BN muaj cov coefficient tsawg ntawm thermal expansion, uas txhais tau hais tias nws tsis nthuav thiab cog lus zoo heev nrog kev hloov pauv kub. Cov cuab yeej no yuav pab tiv thaiv kom tsis txhob muaj kev ntxhov siab thermal thiab ua kom ruaj khov ntawm qhov ntev.

Zuag qhia tag nrho, kev sib xyaw ua ke ntawm cov thermal conductivity, thermal stability, thiab tsis tshua muaj thermal expansion ua rau h-BN yog ib qho kev xaiv zoo tshaj plaws rau kev siv los ua cov khoom siv insulating hauv cov ntawv thov uas yuav tsum tau hloov hluav taws xob zoo thiab qhov kub thiab txias.