Silikoni Nitride seramiki

Awọn ohun elo seramiki silikoni nitride (Si3N4)

Ohun alumọni nitride jẹ seramiki grẹy kan pẹlu lile lile dida egungun giga, resistance mọnamọna ooru ti o dara julọ, ati awọn ohun-ini ti ko ni ibatan si awọn irin didà.

Lilo awọn abuda wọnyi, o lo si awọn ẹya ẹrọ ijona ti inu gẹgẹbi awọn ẹya ẹrọ ọkọ ayọkẹlẹ, ẹrọ alurinmorin awọn nozzles fẹfẹ, ati bẹbẹ lọ, ni pataki awọn ẹya ti o nilo lati lo ni awọn agbegbe lile bii igbona.

Pẹlu resistance wiwọ giga rẹ ati agbara ẹrọ ẹrọ giga, awọn ohun elo rẹ ni awọn ẹya rola, awọn bearings yiyi ati awọn ẹya ohun elo iṣelọpọ semikondokito n pọ si nigbagbogbo.

Awọn ohun-ini ti ara ti awọn ohun elo nitride silikoni

Silikoni nitride (Sic)

Àwọ̀

Dudu

Awọn akoonu paati akọkọ

-

Akọkọ ẹya

Ina iwuwo, resistance resistance, ga otutu resistance.

Lilo akọkọ

Ooru sooro awọn ẹya ara, wọ sooro awọn ẹya ara, ipata sooro awọn ẹya ara.

iwuwo

g/cc

3.2

Hydroscopicity

%

0

Darí ti iwa

Vickers líle

GPA

13.9

Agbara atunse

MPa

500-700

Agbara titẹ

MPa

3500

modulus ọdọ

GPA

300

Ipin Poisson

-

0.25

Egugun lile

MPA·m1/2

5-7

Gbona abuda

Olusọdipúpọ ti laini imugboroosi

40-400 ℃

x10-6/℃

2.6

Gbona elekitiriki

20°

W/ (m·k)

15-20

Ooru pato

J/ (kg·k) x103

 

Itanna abuda

resistivity iwọn didun

20℃

Ω·cm

> 1014

Dielectric agbara

 

KV/mm

13

Dielectric ibakan

 

-

 

Dielectric adanu olùsọdipúpọ

 

x10-4

 

Kemikali ti iwa

Nitric acid

90℃

Pipadanu iwuwo

<1.0<>

Vitriol

95℃

<0.4<>

Iṣuu soda hydroxide

80℃

<3.6<>