Silika Nitride Ceramic

ʻO nā seramika nitride silikoni (Si3N4)

ʻO ka silikoni nitride ka mea hina hina me ka paʻakikī haʻihaʻi kiʻekiʻe, ke kūpaʻa ʻana i ka haʻalulu wela maikaʻi loa, a me nā waiwai i hiki ʻole ke hiki ke hoʻoheheʻe ʻia.

Ke hoʻohana nei i kēia mau hiʻohiʻona, ua hoʻopili ʻia i nā ʻāpana ʻenekini hoʻoheheʻe kūloko e like me nā ʻāpana mīkini kaʻa, nā nozzles blowpipe mīkini welding, a me nā mea ʻē aʻe, ʻoi aku ka nui o nā ʻāpana pono e hoʻohana ʻia i nā wahi paʻakikī e like me ka wela.

Me kona pale ʻaʻahu kiʻekiʻe a me ka ikaika mechanical kiʻekiʻe, e hoʻonui mau ana kāna mau noi i ka lawe ʻana i nā ʻāpana roller, rotating shaft bearings a me nā ʻāpana hana semiconductor.

Nā waiwai kino o nā mea nitride silika

Silicon nitride (Sic)

kalakala

ʻeleʻele

Maʻiʻo mea nui

-

Hiʻona nui

ʻO ke kaumaha māmā, keʻaʻahu kū'ē, ke kū'ē wela kiʻekiʻe.

Hoʻohana nui

ʻO nā ʻāpana pale wela, nā ʻāpana kūpaʻa, nā ʻāpana pale corrosion.

ʻO ka mānoanoa

g/cc

3.2

Hydroscopicity

%

0

ʻAno mīkini

ʻO ka paʻakikī Vickers

GPa

13.9

Ka ikaika kulou

MPa

500-700

Ka ikaika compressive

MPa

3500

Modulus opio

GPA

300

Lakiō o Poisson

-

0.25

ʻOoleʻa haʻihaʻi

MPA·m1/2

5-7

ʻAno wela

Coefficient o ka hoonui laina

40-400 ℃

x10-6/℃

2.6

ʻO ke kau wela wela

20°

W/(m·k)

15-20

wela kūikawā

J/(kg·k)x103

 

ʻAno uila

Ke kū'ē leo

20 ℃

Ω·cm

>1014

Ka ikaika dielectric

 

KV/mm

13

Dielectric mau

 

-

 

Koefisi poho dielectric

 

x10-4

 

ʻAno kemika

Nitric acid

90 ℃

Kaumaha emi

<1.0<>

Vitriol

95 ℃

<0.4<>

ʻO ka sodium hydroxide

80 ℃

<3.6<>