SiC & Si3N4 Ceramic

氮化硅Ii-Silicon nitride ceramics (Si3N4)

I-silicon nitride kunye ne-silicon carbide zomelele kakhulu iikhompawundi ze-covalent bond, zineempawu ezifanayo zomzimba kunye neekhemikhali, i-silicon nitride idityaniswe nemveliso ye-silicon carbide enokumelana nobushushu obuphezulu, ukumelana nokugqwala, ukumelana nokunxiba, ukumelana nokhukuliseko, ukuxhathisa kwe-oxidation kunye nothotho lweempawu ezigqwesileyo. I-Silicon nitride kunye ne-silicon carbide njengezixhobo ezichasayo zodidi oluphezulu kwi-atmospheres ezahlukeneyo, ubushushu obuqhelekileyo bokusetyenziswa bunokufikelela kwi-1500 ℃ okanye njalo, busetyenziswa ngokubanzi kwi-ceramics, i-metallurgy engeyoyo, isinyithi kunye nesinyithi sesinyithi, isinyithi somgubo, ishishini lemichiza kunye namanye amashishini.

I-Silicon nitride edityaniswe ne-silicon carbide imathiriyeli kunye neentsimbi ezingezizo i-ferrous ayingeni, kwaye ineempawu zokugquma kakuhle, ngoko ke isetyenziswa ngokubanzi kwinkqubo yokuvelisa izinyithi ezingenayo intsimbi ezifana ne-aluminiyamu, ubhedu kunye ne-zinc, ngakumbi eyona nto ifanelekileyo ukuveliswa kwezitena zodonga lwe-electrolytic cell side.

Into

Isalathiso sezitena zomlilo

Inkcazo yeKiln

Isalathiso semveliso emile

I-porosity ebonakalayo(%

<16

<16

<14

Unizi lolwapho kuyiwa khona(g/cm3

2 2.65

2 2.65

2 2.68

Amandla oxinzelelo kwiqondo lokushisa(MPa

2 160

2 170

2 180

Ukugoba amandla kwiqondo lobushushu begumbi(1400X: MPa

2 40

2 45

2 45

Amandla okugoba ubushushu obuphezulu(1400r MPa

2 50

2 50

2 50

I-Coefficient yokwandiswa kwe-thermal(110CTCxioVC

<4.18

<4.18

<4.18

I-Thermal conductivity(1100C

216

2 16

216

IiRefractories(°C

1800

1800

1800

0.2 MPa Ukushisa okuthambisayo phantsi komthwalo(X:)

1600

1600

> 1700

Ubushushu bokusebenza okuphezulu(°C

1550

1550

1550