SiC & Si3N4 Ceramic

Silicon nitride ceramics (Si3N4)

Silicon nitride na silicon carbide bụ ngwakọta nke njikọ covalent siri ike, nwere ihe anụ ahụ na kemịkalụ yiri nke ahụ, silicon nitride jikọtara ya na ngwaahịa silicon carbide nwere oke okpomọkụ na-eguzogide, nguzogide corrosion, iyi nguzogide, nguzogide mbuze, nguzogide oxidation na usoro ihe mara mma. Silicon nitride na silicon carbide dị ka ihe refractory dị elu dị na mbara igwe dị iche iche, okpomọkụ a na-ejikarị eme ihe nwere ike iru 1500 ℃ ma ọ bụ karịa, nke a na-ejikarị eme ihe na ceramics, metallurgy na-abụghị ferrous, ígwè na ígwè metallurgy, ntụ ntụ ntụ, ụlọ ọrụ kemịkalụ na ụlọ ọrụ ndị ọzọ.

Silicon nitride jikọtara ya na silicon carbide ihe na ndị na-abụghị ferrous ọla adịghị infiltrate, na nwere ezigbo mkpuchi ihe Njirimara, ya mere a na-eji ọtụtụ ebe na mmepụta usoro nke na-abụghị ferrous ọla dị ka aluminom, ọla kọpa na zinc, karịsịa ezigbo ihe maka mmepụta nke electrolytic cell n'akụkụ mgbidi lining brik.

Ihe

Ndekọ ọkụ brik

Nkọwa nke Kiln

Index nke ngwaahịa akpụrụ akpụ

Porosity pụtara(%)

<16

<16

<14

Nnukwu njupụta(g/cm3)

2 2.65

2 2.65

2 2.68

Ike mkpakọ na ụlọ okpomọkụ(MPa)

2160

2170

2180

Ike na-ehulata na ọnụ ụlọ okpomọkụ(1400X:) MPa

240

245

245

Ike na-ehulata okpomọkụ dị elu(1400r) MPa

250

250

250

Ọnụọgụ nke mgbasawanye thermal(110CTC)xioVC

<4.18

<4.18

<4.18

Thermal conductivity(1100C)

216

216

216

Refractories(°C )

1800

1800

1800

0.2MPa Ọnọdụ okpomọkụ dị nro n'okpuru ibu(X:)

1600

1600

> 1700

Okpomọkụ kachasị arụ ọrụ(°C)

1550

1550

1550