Silicon nitride Ceramic

Silicon nitride ceramics (Si3N4)

Silicon nitride bụ seramiiki isi awọ nke nwere mgbaji siri ike dị elu, nkwụsi ike ujo dị mma, yana ihe na-enweghị atụ na ọla gbazere.

N'iji njirimara ndị a, a na-etinye ya n'ime akụkụ engine combustion dị n'ime ya dị ka akụkụ engine ụgbọ ala, igwe ịgbado ọkụ na-afụ ụfụ, wdg, karịsịa akụkụ ndị dị mkpa iji mee ihe na gburugburu ebe dị njọ dị ka ikpo ọkụ.

Site na nguzogide ya dị elu na ike ọrụ dị elu, ngwa ya na-ebu akụkụ ndị na-akpụ akpụ, na-atụgharị aro bearings na semiconductor mmepụta akụrụngwa akụrụngwa na-agbasawanye mgbe niile.

Njirimara anụ ahụ nke ihe silicon nitride

Silicon nitride (Sic)

Agba

Nwa

Isi akụrụngwa ọdịnaya

-

Isi njirimara

Ibu dị arọ, nguzogide eyi, oke okpomọkụ na-eguzogide.

Isi ojiji

Akụkụ na-eguzogide okpomọkụ, na-eyi akụkụ ndị na-eguzogide ọgwụ, akụkụ ndị na-eguzogide corrosion.

Njupụta

g/cc

3.2

Hydroscopicity

%

0

Njirimara igwe

Vickers isi ike

GPA

13.9

Ike na-ehulata

MPa

500-700

Ike mkpakọ

MPa

3500

modul nke ntorobịa

GPA

300

Oke Poisson

-

0.25

Mgbaji siri ike

MPA·m1/2

5-7

Njirimara okpomọkụ

Ọnụọgụ nke mgbasawanye linear

40-400 ℃

x10-6/℃

2.6

Thermal conductivity

20°

W/ (m·k)

15-20

Okpomọkụ akọwapụtara

J/ (kg·k) x103

 

Njirimara eletriki

Olu resistivity

20 ℃

Ω·cm

> 1014

Ike dielectric

 

KV/mm

13

Dielectric mgbe niile

 

-

 

Ọnụ ọgụgụ ọnwụ dielectric

 

x10-4

 

Njirimara kemịkalụ

Nitric acid

90 ℃

Mbelata ibu

<1.0<>

Vitriol

95 ℃

<0.4<>

Sodium hydroxide

80 ℃

<3.6<>