Koj tau so assured mus yuav Silicon Carbide ntawv los ntawm peb lub hoobkas thiab peb yuav muab koj qhov zoo tshaj plaws tom qab-muag kev pab cuam thiab xa khoom raws sij hawm. Thiab tau txais kev ntseeg siab ntawm cov neeg siv khoom hauv ntau lub teb chaws hauv tsev thiab txawv teb chaws vim lawv qhov txiaj ntsig zoo ntawm cov khoom zoo thiab lub sijhawm xa khoom. Silicon carbide (SiC) yog lub teeb yuag cov khoom siv ceramic nrog cov khoom muaj zog zoo piv rau pob zeb diamond. Silicon Carbide Phaj muaj cov thermal conductivity zoo, tsis tshua muaj thermal expansion, thiab tiv taus corrosion los ntawm acids.
Silicon Carbide (SiC) paub txog nws cov khoom zoo. Nrog rau Mohs hardness thib ob tsuas yog pob zeb diamond, SiC yog ib qho ntawm cov ntaub ntawv nyuaj tshaj plaws thiab muaj kev hnav zoo heev. Nws cov thermal conductivity siab tso cai rau kom muaj cua sov kom zoo, ua rau nws zoo tagnrho rau cov ntawv thov kub. Tsis tas li ntawd, cov tshuaj tiv thaiv ntawm silicon carbide ua kom ruaj khov nyob rau hauv ib puag ncig hnyav, thaum nws qhov kub thiab txias ruaj khov tso cai rau nws kom muaj zog thiab kev ncaj ncees nyob rau hauv huab cua txias. SiC kuj nthuav tawm cov thermal expansion tsawg, txo qhov kev pheej hmoo ntawm kev tawg vim thermal stress. Tsis tas li ntawd, raws li lub semiconductor, SiC muaj txiaj ntsig zoo hauv kev siv hluav taws xob, tshwj xeeb tshaj yog rau cov khoom siv hluav taws xob siab thiab kub kub, txhim kho nws cov kev siv ntau yam thiab qhov tseem ceeb hauv cov thev naus laus zis siab heev.

silicon carbide daim ntawv muaj zog
|
Compound Formula |
SiC |
|
Molecular Luj |
40.1 |
|
Qhov tshwm sim |
Cov ntawv |
|
Melting Point |
N/A |
|
Boiling Point |
N/A |
|
Qhov ntom |
3.22 g / cm33 |
|
Solubility hauv H2O |
N/A |
|
Exact Mass |
39.976927 |
|
Monoisotopic Mass |
39.976927 |
|
|
|
ZrO2/Y2O3 |
ZrO2/MgO |
MgO |
SiC |
Si3N4 Reaction sintered |
Si3N4 Kub nias |
ALN |
|
Lub cev muaj zog |
|
|
|
|
|
|
|
|
|
Qhov ceev (g / cm3) |
3,9 |
5,9 |
5,75 |
3,58 |
3,2 |
3,27 |
3,29 |
3,26 |
|
Molecular Luj (g / mole) |
102 |
- |
- |
40,4 |
40,1 |
140 |
140 |
41 |
|
Qhov siab tshaj plaws kev pabcuam kub cua (degree) |
1700- 1800 |
1500 |
1000 |
2200 |
1500 |
1200- 1500 |
1100- 1600 |
1000- 1800 |
|
Mechanical zog |
|
|
|
|
|
|
|
|
|
Hardness (Mohs) |
9 |
- |
- |
5,5 |
9 |
- |
- |
7 |
|
Modulus ntawm elasticity (GPa) |
300-400 |
200 |
200 |
250-300 |
420 |
170-220 |
280-310 |
318 |
|
Poisson tus ratio |
0,25 |
- |
- |
0,18 |
0,14 |
0,25-0,26 |
0,27 |
0,25 |
|
Fracture toughness (MPa.m1/2) |
2-3 |
7-13 |
6-10 |
- |
2,5-3,5 |
3,5-5 |
6,1 |
4,5 |
|
Cov khoom hluav taws xob |
|
|
|
|
|
|
|
|
|
Dielectric tsis tu ncua |
9-10 |
- |
- |
9-10 |
- |
10 |
10 |
9,2 |
|
Hluav taws xob tiv taus ntawm 20 degree (Ohm. cm) |
>10 14 |
10 13-10 14 |
>10 10 |
- |
10 2-10 6 |
>10 7 |
10 12- 10 15 |
>10 14 |
|
Dielectric zog (kV / mm) |
10-20 |
9 |
2-10 |
- |
- |
- |
- |
15 |
|
Thermal khoom |
|
|
|
|
|
|
|
|
|
Cov cua sov tshwj xeeb (J / K / kg) |
900 |
400-500 |
420 |
870-880 |
750 |
690 |
680-800 |
800 |
|
Thermal conductivity (W / m / K) ntawm 20 degree |
26-35 |
2,2-3,2 |
1,5-2,5 |
40-50 |
63-155 |
9-30 |
15-43 |
180 |
|
Coefficient ntawm thermal expansion ( 10-6) los ntawm 20 mus rau 1000 degree |
8-9 |
10-11 |
5-16 |
10-13 |
4-5 |
3 |
3,3 |
4,4-5,3 |
|
Melting point (zeeg) |
2050 |
2590 |
- |
2800 |
2500 |
1900 |
1900 |
2200 |
Qhov zoo ntawm AGRM silicon carbide ntawv
1. Hardness siab heev
2. Hnav-tiv taus
3. Corrosion resistant
4. Lub teeb - Tsawg ntom
5. High thermal conductivity
6. High Young's modulus
7. Tsawg thermal expansion coefficient
8. Chemically thiab thermally resistant
9. Zoo heev thermal shock kuj
10. Refractive Performance index ntau dua li pob zeb diamond
fabrication ntawm silicon carbide ntawv
Silicon carbide nplooj ntawv feem ntau yog tsim los ntawm cov txheej txheem xws li:
Sintering: Powdered SiC yog nias rau hauv cov duab uas xav tau thiab tom qab ntawd rhaub kom kub rau hauv qhov cub.
Chemical Vapor Deposition (CVD): Cov txheej txheem tshuaj roj-theem uas tso cov khoom siv los ntawm cov vapor los ua kom muaj kev coj dawb huv thiab ua haujlwm siab SiC.
muaj cov ntawv silicon carbide
SiC cov ntawv tuaj nyob rau hauv ntau qib, thicknesses, thiab ntau thiab tsawg kom tau raws li cov kev cai tshwj xeeb. Lawv tuaj yeem tau txais los ntawm cov tuam ntxhab tshwj xeeb hauv cov khoom siv ceramics thiab cov khoom siv semiconductor.
Thaum xaiv ib daim ntawv silicon carbide rau ib daim ntawv thov, xav txog qhov yuav tsum muaj cov khoom siv kho tshuab, thermal thiab tshuaj tiv thaiv, thiab cov xwm txheej ib puag ncig nws yuav raug.

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