Silicon Nitride Ceramic

Silicon nitride ceramics (Si3N4)

Silicon nitride ndeye grey ceramic ine yakakwira kuputsika kusimba, yakanakisa kupisa kuvhundutsa kuramba, uye zvisingapindike zvivakwa kune simbi dzakanyungudutswa.

Uchishandisa hunhu uhu, inoiswa kune emukati mejini zvikamu zvakaita semota injini zvikamu, welding muchina blowpipe nozzles, nezvimwewo, kunyanya zvikamu zvinoda kushandiswa munzvimbo dzakaoma sekupisa.

Nekupokana kwayo kwepamusoro uye kusimba kwemagetsi, mashandisirwo ayo mukutakura zvikamu zvemaroller, inotenderera shaft mabhengi uye semiconductor yekugadzira michina yekugadzira zvinhu zvinogara zvichikura.

Zvenyama zvimiro zvesilicon nitride zvinhu

Silicon nitride (Sic)

Color

Nhema

Main chikamu chemukati

-

Main feature

Uremu huremu, kupfeka kusagadzikana, kupisa kwakanyanya.

Main kushandiswa

Zvikamu zvinodzivirira kupisa, pfeka zvisingachinji, zvikamu zvinodzivirira ngura.

Density

g/cc

3.2

Hydroscopicity

%

0

Mechanical characteristic

Vickers kuoma

GPa

13.9

Kupeta simba

MPa

500-700

Kudzvinyirira simba

MPa

3500

Young's modulus

GPA

300

Chiyero chePoisson

-

0.25

Kutsemuka kuomarara

MPA · m1/2

5-7

Thermal character

Coefficient yekuwedzera kwemutsara

40-400 ℃

x10-6/℃

2.6

Thermal conductivity

20°

W/(m·k)

15-20

Kupisa chaiko

J/(kg·k)x103

 

Electrical character

Volume resistivity

20 ℃

Ω·cm

>1014

Dielectric simba

 

KV/mm

13

Dielectric constant

 

-

 

Dielectric kurasikirwa coefficient

 

x10-4

 

Kemikari maitiro

Nitric acid

90 ℃

Kuderedza uremu

<1.0<>

Vitriol

95℃

<0.4<>

Sodium hydroxide

80 ℃

<3.6<>