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Beryllium Oxide Ceramic
Description

Description of Beryllium Oxide Ceramic:


We mainly produce beryllium oxide, boron nitride, silicon carbide, corundum mullite ceramic, A-75 ceramic, A-95 ceramic, A-96 ceramic, A-99 ceramic and other ceramic products, which are widely used in aerospace, microelectronics, optoelectronics, communications, electric vacuum and power electronics industries, among which the production technology of beryllium oxide ceramics represents the highest level in China, and the product performance indexes reach the world advanced level.

Technique Data

Technique Data of Beryllium Oxide Ceramic:


Item

Test Conditions

Specification

Unit



B-97

B-99


Dielectric Constant

1MHz

6.90.4

6.90.4



(100.5)GHz




Dielectric Loss Tangent

1MHz

≤4X 10-4

≤4X 10-4



(100.5)GHz

8X 10-4

8X 10-4


Volume Resistivity

25

≥1014

≥1014

Ω.cm


300

≥10"

≥10"


Breakdown Strength

D C

15

20

kV/mm

CMOR

-

170

190

MPa

Average Linear Expansion Coefficient

25~500

(7.0~8.5)*10-4

(7.0~8.5)*10-4

I/K

Thermal Conductivity

25

200

240

W/m.K


100

160

190


Thermal Shock Resistance

0-800

There should be no cracks


Bulk Density


2.85

2.85

g/ cm3

Chemical Stability

1:9HCL

0.3

0.3

Mg/cm2


10% NaOH

0.2

0.2


Air Tightness

-

10*10-11

10*10-11

Pa. m3/s

Average Grain Size

-

12~30

12~30

μm


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