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科學(xué)研究 Scientific research
碳化矽電熱元件在不同氣氛下的使(shǐ)用溫度和表麵負荷


氣氛

 

Atmosphere

爐(lú)溫(℃)

 

Furnace

表麵負荷

(W/cm2

Surface Load

對元件的影響

 

Effect On Elements

解決辦(bàn)法


Solution

1290

3.8

與sic作用生成(chéng)甲烷減少sio2保護膜 Decreasing SiO2 protective film by Acting with SiC to generate Methane

露點激活

Make it active at dew point

CO₂

1450

3.1

腐蝕碳化矽  Attacking sic

用石英管保護

Protecting by quartz tube

18%CO

1500

4.0

無影響  No

 

20%CO

130

3.8

吸附碳粒影響(xiǎng)sio2保護膜   Affecting SiO2 protective film by Adsorbing C grains

 

鹵素

704

3.8

腐蝕碳化矽減(jiǎn)少sio2保護膜 Decreasing SiO2 protective film by eroding SiC

用石英管保護

Protecting by quartz tube

碳氫化合物

1310

3.1

吸附碳粒(lì)致熱汙染,分解的碳沉積(jī),易造(zào)成電氣故障  Causing hot pollution by adsorbing C grains

送進充分的(de)空氣

Filling with plenty of air

1290

3.1

與sic作(zuò)用(yòng)反應生成甲(jiǎ)烷,減少sic2保護膜(mó) Decreasing SiO2 protective film by Acting with SiC to generate Methane

露點(diǎn)激活

Make it Active at dew point

甲烷

1370

3.1

吸附碳粒致熱汙染  Causing hot pollution by adsorbing C grains

 

N

1370

3.1

與sic反應形成氮化矽(guī)絕緣(yuán) Generating SiN insulating layer by acting with SiC

 

Na

1310

3.8

侵蝕碳化矽  Eroding sic

用石英管保護

Protecting by quartz tube

SO2

1310

3.8

侵蝕碳化矽  Eroding sic

用石英管保護

Protecting by quartz tube

真空

1204

3.8

 

 

1310

3.8

碳化矽(guī)被氧化 Sic oxidized

 

水(shuǐ)(不同含(hán)量)

1090-1370

3.1-3.6

與(yǔ)sic作用生成矽的水化物(wù)

Generating hydrate of silicon by acting on SiC

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