SiC & Si3N4 Ceramic

氮化硅Silicon nitride ceramics (Si3N4)

Silicon nitride uye silicon carbide yakasimba kwazvo covalent bond makomisheni, ane akafanana emuviri uye makemikari zvimiro, silicon nitride yakasanganiswa nesilicon carbide zvigadzirwa zvine tembiricha inodzivirira, corrosion resistance, kupfeka kusagadzika, erosion resistance, oxidation resistance uye zvakatevedzana zvemhando yepamusoro.Silicon nitride uye silicon carbide seyepamusoro-giredhi refractory zvinhu munzvimbo dzakasiyana siyana tembiricha yekushandiswa inogona kusvika 1500 ℃ kana zvakadaro, inoshandiswa zvakanyanya mu ceramics, non-ferrous metallurgy, iron nesimbi metallurgy, poda metallurgy, indasitiri yemakemikari nemamwe maindasitiri.

Silicon nitride yakasanganiswa nesilicon carbide zvinhu uye isiri-ferrous simbi haipindi, uye ine yakanaka yekuvharisa zvivakwa, saka inoshandiswa zvakanyanya mukugadzira simbi isina-ferrous sealuminium, mhangura uye zinc, kunyanya iyo yakanakira zvinhu. kugadzirwa kwe electrolytic cell side wall lining zvidhinha.

Item

Firebrick index

Kiln specification

Index yechigadzirwa chakaumbwa

Inooneka porosity(%

<16

<16

<14

Bulk density(g/cm3

2 2.65

2 2.65

2 2.68

Kudzvinyirira simba pakupisa kwekamuri(MPa

2 160

2 170

2 180

Kupeta simba pakudziya kwekamuri(1400X: MPa

2 40

2 45

2 45

High tembiricha yekukotama simba(1400r MPa

2 50

2 50

2 50

Coefficient yekuwedzera kwekushisa(110CTCxioVC

<4.18

<4.18

<4.18

Thermal conductivity(1100C

216

2 16

216

Refractories(°C

1800

1800

1800

0.2 MPa Kupfava tembiricha pasi pemutoro(X:)

1600

1600

> 1700

Maximum yekushanda tembiricha(°C

1550

1550

1550