Rau ntawm qhov uas nquag siv thermal ua cov nanomaterials

1. Nano diomand

Pob zeb diamond yog cov khoom siv nrog kev ua haujlwm siab tshaj plaws hauv kev coj ua, nrog cov thermal conductivity txog 2000 W / (mK) ntawm chav tsev kub, lub zog thermal nthuav dav txog (0.86 ± 0.1) * 10-5 / K, thiab rwb thaiv tsev hauv chav kub.Qhov ntxiv, pob zeb diamond kuj muaj cov cuab yeej zoo, lub suab, kho qhov muag, hluav taws xob thiab tshuaj, uas ua rau nws muaj qhov pom tseeb nyob rau hauv tshav kub dissipation ntawm cov khoom siv hluav taws xob siab tshaj, uas tseem qhia tau tias pob zeb diamond muaj kev thov zoo heev hauv tshav kub dissipation teb.
2. BN

Cov qauv siv lead ua ntawm hexahedral boron nitride zoo ib yam li cov qauv graphite txheej. Nws yog cov hmoov dawb tus cwj pwm los ntawm xoob, kev tso tawm, yooj yim nqus thiab lub teeb yuag.Qhov khoom siv yog 2.29g / cm3, mohs hardness yog 2, thiab cov khoom muaj tshuaj lom neeg yog qhov ruaj khov heev.Qhov khoom muaj qhov siab noo noo thiab tuaj yeem siv hauv nitrogen lossis argon ntawm qhov kub thiab txias mus txog 2800 ℃ .Nws tsis tsuas muaj lub zog thermal nthuav coefficient, tab sis kuj muaj lub siab thermal conductivity, tsis yog tsuas yog kev coj zoo ntawm kev kub, tab sis ib qho hluav taws xob hluav taws xob tiv thaiv.Qhov thermal conductivity ntawm BN yog 730w / mk ntawm 300K.

3. SIC

Cov cuab yeej tshuaj lom neeg ntawm silicon carbide yog qhov ruaj khov, thiab nws cov thermal conductivity zoo dua li lwm cov khoom siv roj semiconductor, thiab nws cov thermal conductivity tseem ntau dua li cov hlau hauv chav kub. Cov neeg tshawb nrhiav los ntawm Beijing University of Chemical Technology tau kawm txog thermal conductivity ntawm alumina thiab silicon carbide siv tam silicone roj hmab.Qhov kev tshwm sim qhia tau tias cov thermal conductivity ntawm silicone roj hmab nce nrog qhov nce ntawm cov nyiaj ntawm silicon carbide.With tib cov nqi ntawm silicon carbide, cov thermal conductivity ntawm silicon roj hmab txhawb nrog me particle loj yog ntau dua qhov loj qhov loj Cov.

4. ALN

Aluminium nitride yog cov khoom siv hluav taws xob atomic siv hluav taws xob thiab tuaj yeem nyob ruaj khov ntawm qhov kub siab ntawm 2200 ℃. Nrog cov zoo thermal conductivity thiab cov coefficient me me ntawm thermal nthuav, nws yog cov khoom ua kom zoo thaum tshav kub kub tiv thaiv.Qhov thermal conductivity ntawm aluminium nitride yog 320 W · (m · K) -1, uas yog nyob ze rau lub thermal conductivity ntawm boron oxide thiab silicon carbide thiab ntau dua 5 zaug dua li ntawm alumina.
Cov kev taw qhia daim ntawv thov: thermal silica gel system, thermal yas system, thermal epoxy resin system, thermal ceramic khoom lag luam.

5. AL2O3

Alumina yog ib hom kev ua haujlwm ntau inorganic muab tub lim, nrog cov thermal conductivity, dielectric tas li thiab zoo dua hnav tsis kam, dav siv hauv cov roj hmab cov khoom siv, xws li silica gel, potting sealant, epoxy resin, yas, roj hmab thermal conductivity, thermal conductivity yas , kua roj silicone, cov khoom cua sov ua kom zoo nkauj thiab lwm yam khoom siv.Hauv kev siv, Al2O3 muab tub lim yuav siv ib leeg los yog sib xyaw nrog lwm cov muab tub lim xws li AIN, BN, thiab lwm yam.

6. Cov Nanotubes

Lub thermal conductivity ntawm carbon nanotubes yog 3000 W · (m · K) -1, 5 zaug ntawm tooj liab.Carbon nanotubes tuaj yeem txhim kho cov thermal conductivity, conductivity thiab cov khoom siv lub cev ntawm roj hmab, thiab nws qhov cuab lub zog thiab thermal conductivity zoo dua li tsoos cov muab tub yees xws li carbon dub, carbon fiber thiab iav fiber ntau.