常规材料的导热系数

1、常规材料的导热系数导热系数是指在稳定传热条件下，1m厚的材料，两侧表面的温差为1度（K,° C），在 1小时内，通过1平方米面积传递的热量，单位为瓦/米？度（W/m?K，此处的K可用° C代替导热率W/（m*K）金刚石1300-2400硅611银429铜401金317铍250铝240氮化铝200钨180锌116镍91铁84-90铟82钯72铂72铟90银1067锡66金80锡2057锡63铅3750.9锡60铅4049.8锡50铅5046.7锡62铅36银249金88锗1244锡40铅6043.6锡30铅7040.5锡20铅8037.4锡10铅9035.8锡5铅9535.2

2、铅35AI2O3 (96%)35锡银33锡锑28锑2442合金15.6银填充的相变型光盘片3 - 8氮化硼填充的硅树脂6银填充的铸模模压料BT环氧树脂FR-4空气1.3 - 50.6 - 0.7 0.190.110.03导热系数与材料的组成 结构、密度、含水率、温度等因素有关。非晶体结构、密度较低的材 料，导热系数较小。材料的含水率、温度较低时，导热系数较小。通常把导热系数较低的材料称为保温材料，而把导热系数在0.05瓦/米？度以下的材料称为高效保温材料。软性硅胶导热绝缘垫是传热界面材料中的一种，具有良好的导热能力和高等级的耐压,其作用就是填充处理器与散热器之间大要求，是替代导热硅脂导热膏加云

3、母片的二元散热系统的最佳产品.该产品的导热系数是2.45W/mK,抗电压击穿值在4000伏以上,本身具有一定的柔韧性，很好的贴合功率器件与散热铝片或机器外壳间的，从而达到最好的导热及散热目的，符合目前电子行业对导热材料的要求.硅胶导热绝缘垫的长宽规格400x200mm，工艺厚度从 0.5mm5mm 不等，每0.5mm 加，即0.5mm 1mm 1.5mm 2mm 一直到5mm特殊要求可增至10mm专门为利用缝隙传递热量 的设计方案生产，能够填充缝隙完成发热部位与散热部位的热传递同时还起到减震绝缘密封等作用，能够满足社设备小型化超薄化的无风扇设计要求，是极具工艺性和使用性的新材料.且厚度适用范围

4、广，特别适用于汽车、显示器、计算机和电源等电子设备行业阻燃防火性能符合 U.L安规94V-0要求，已通过SGS公司关于欧盟 ROHS标准检测环保 认证,工作温度一般在-50 C 220 C开关电源绝缘，耐溫，耐电压，导热及防火材料：1. 软性硅胶导热垫,工艺厚度从 0.5mm-5mm,每0.5mm 一加,即0.5mm 1mm 1.5mm 2mm一直到5mm;特殊要求可增至10mm,导热系数高达 2.45w/mk,同时具有非常好的绝缘性能.阻燃防火性能符合UL 94V-0要求，并符合欧盟 SGS环保认证,工作温度一般在-50 C220 C ;因此，是非常好的导热材料.特性柔软，专门为利用间隙传递

5、热量的设计方案生产，能够填充缝隙，完成发热部件与散热片的热传递，增加导热面积，同时还起到防震，绝缘,密封等作用;能够满足社设备小型化，超薄化的设计要求，是极具工艺性和使用性的新材料.且厚度适用范围广，特别适用于汽车、显示器、计算机和电源等电子设备行业2. 大功率MOS管,散热绝缘片一般使用矽胶片，导热系数：0.8-1.2W/M.K,成本低,易组装，对 高发热量的MOS管绝缘是没有问题，散热效果很理想.常用材料导热系数-深圳智通电子有限公司提供MetalMaterialCon ductivityDen sity 密度W/m-Ckg/m 3Alumi num, 2024,Temper-T31212

6、.80E+03Alumi num, 2024,Temper-T3511432.80E+03Alumi num, 2024,Temper-T41212.80E+03Alumi num, 5052,Temper-H321382.68E+03Alumi num, 5052,Temper-O1442.69E+03Aluminum, 6061,Temper-O1802.71E+03Aluminum, 6061,Temper-T41542.71E+03Alumi num 铝,6061,1672.71E+03Temper-T6Aluminum, 7075,Temper-O1302.80E+03Aluminu

7、m, 7075,Temper-T61302.80E+03Alumi num, A356,Temper-T61282.76E+03Alumi num, Al-Cu,Duralumi n, 95%AI-5%Cu1642.79E+03Alumi num, Al-Mg-Si, 97%AI-1%Mg-1%Si-1% Mn1772.71E+03Alumi num, Al-Si, Alusil, 80%Al-20%Si1612.63E+03Alumi num, Al-Si,Silumim, 86.5%AI-1%Cu1372.66E+03Alu minum, Pure2202.71E+03Beryllium,

8、 Pure1751.85E+03Brass, Red, 85%Cu-15%Zn 1518.80E+03Brass, Yellow,65%Cu-35%Z n1198.80E+03Copper, Alloy, 110003888.93E+03Copper, Alu minum bronze, 95%Cu-5%AICopper, Brass, 70%Cu-30%Z nCopper, Bron ze, 75%Cu-25%S nCopper, Con sta ntan, 60%Cu-40%NiCopper, Draw n Wire Copper, Germa n silver, 62%Cu-15%Ni-

9、22%Z nCopper, PureCopper, Red brass, 85%Cu-9%S n-6%Z nGold, PureIn var, 64%Fe-35%NiIron, CastIron, PureIron, Wrought, 0.5%CKovar, 54%Fe-29%Ni-17%CoLead, PureMag nesium, Mg-Al, Electrolytic, 8%Al-2%Z nMagn esium, PureMolybde numNichrome, 80%Ni-20%Cr Nickel, Ni-Cr, 80%Ni-20%CrNickel, Ni-Cr, 90%Ni-10%C

10、rNickel, PureSilver, PureSolder, Hard, 80%Au-20%S nSolder, Hard, 88%Au-12%GeSolder, Hard, 95%Au-3%SiSolder, Soft,60%S n-40%PbSolder, Soft,838.67E+031118.52E+03268.67E+0322.78.92E+032878.80E+0324.98.62E+033868.95E+03618.71E+033181.89E+0413.88.13E+03557.92E+0371.87.90E+03597.85E+0316.38.36E+03351.14E+

11、04661.81E+031711.75E+031301.02E+04128.40E+0312.68.31E+03178.67E+03998.91E+034181.05E+04571.50E+04881.50E+04941.57E+04509.29E+03519.25E+0363%S n-37%Pb92.5%Pb-2.5%Ag-5%lnSolder, Soft,391.20E+0432.31.10E+0495%Pb-5%S nSteel, Carbon, 0.5%C547.83E+03Steel, Carbo n, 1.0%C437.80E+03Steel, Carbo n, 1.5%C367.

12、75E+03Steel, Chrome, Cr0%737.90E+03Steel, Chrome, Cr1%617.87E+03Steel, Chrome, Cr20%227.69E+03Steel, Chrome, Cr5%Steel, Chrome-Nickel,407.83E+0315%Cr-10%NiSteel, Chrome-Nickel,197.87E+0318%Cr-8%NiSteel, Chrome-Nickel,16.37.82E+0320%Cr-15%NiSteel, Chrome-Nickel,15.17.83E+0325%Cr-20%Ni12.87.87E+03Stee

13、l, Invar, 36%Ni10.78.14E+03Steel, Nickel, Ni0%737.90E+03Steel, Nickel, Ni20%197.93E+03Steel, Nickel, Ni40%108.17E+03Steel, Nickel, Ni80%358.62E+03Steel, SAE 1010597.83E+03Steel, SAE 1010, Sheet63.97.83E+03Steel, Stai nl ess, 31616.268.03E+03Steel, Tu ngste n, W0%737.90E+03Steel, Tun gste n, W1%667.9

14、1E+03Steel, Tu ngste n, W10%488.31E+03Steel, Tu ngste n, W5%548.07E+03Tin, Cast, Hammered62.57.35E+03Ti n, Pure647.30E+03Tita nium15.64.51E+03Tun gste n1801.94E+04Zinc 锌,PureNon-Metal112.27.14E+03MaterialCon ductivityDen sityW/m-Ckg/m3ABS-Plastic0.251.01E+03Acetals0.31.42E+03Acrylic0.061.19E+03Alkyd

15、s0.85Alumi na, 96%21Alumi na, Pure37Asbestos, Asbestos-sheets0.166Asbestos, Ceme ntAsbestos,Ceme nt-boards2.080.74Asbestos, Corregated, 4plies/in0.087Asbestos, Felt, 20 lam/in0.078Asbestos, Felt, 40 lam/in0.057Asbestos,Loosely-packed0.154Asphalt0.75Bakelite0.19Balsam wool 2.2lb/ft 30.04Beryllia, 99.

16、5%197.3Brick, Buildi ng brick0.69Brick, Carbor un dum brick18.5Brick, Chrome brick2.32Brick, Diatomaceous earth0.24Brick, Face brick1.32Brick, Fireclay1.04Brick, Magn esite3.81Carbon6.92Cardboard, Celotex0.048Cardboard, Corrugated0.064Ceme nt, Mortar1.16Ceme nt, Portla nd0.29Con crete, Cin der0.76Co

17、n crete, Sto ne 1-2-4 mix1.37Cork,Corkboard,10lb/ft 30.043Cork, Ground0.043Cork, Regra nu lated0.045Diam ond, Film700Diam ond, Type IIA2.00E+03Diam ond, Type IIB1.30E+032.00E+03 3.80E+03 3.90E+03No DataNo DataNo DataNo DataNo DataNo Data520No Data No Data 35No Data 1.60E+03No Data3.00E+03No Data2.00

18、E+03 2.00E+03 No Data No Data No Data No Data No Data 1.50E+03 No Data2.10E+0316015080 3.50E+03 No Data No DataDiatomaceous earth0.061320E-Glass Fiber0.892.54E+03Epoxy, High Fill2.163No DataEpoxy, No Fill0.207No DataFelt, Hair0.036265Felt, Wool0.052330Fiber in sulati ng board0.048240FR4 Epoxy Glass,

19、 1ozCopper9.11No DataFR4 Epoxy Glass, 2 ozCopper17.71No DataFR4 Epoxy Glass, 4ozCopper35.15No DataFR4 Epoxy Glass, noCopper0.2941.90E+03Glass, Borosilicate1.092.20E+03Glass, Pyrex1.022.23E+03Glass, Win dow0.782.70E+03Glass, Wool, 1.5lb/ft30.03824In sulex, dry0.064No DataKapok0.035No DataKapt on0.156

20、No DataMag nesia, 85%0.067270Mica0.71No DataMylar0.19No DataNylo n0.2421.10E+03Phe nolic, Paper based0.277No DataPhe nolic, Plain0.519No DataPlaster, Gypsum0.481.44E+03Plaster, Metal lath0.47No DataPlaster, Wood lath0.28No DataPlexiglass0.19No DataPolycarb on ate0.191.20E+03Polyethyle ne, High den sity0.5950Polyethyle ne, Low den sity0.35920Polyethyle ne, Medium den sity0.4930Polystyre ne0.106No DataPol yvinyl chloride0.16No DataPyrex1.26No DataRock wool, 10lb/ft 30.04160Rock wool, Loosely0.06764packedRubber, Butyl0.26No DataRubber, Hard0.19No DataRubber,