There are three categories of fine ceramics which are electronic ceramics , structure ceramics and bioceramics according to properties and functions and are used in information , communication , electrical , industrial , mechanical , energy , metal , textile , chemical , biomedicine , various industries etc.
KST 's high precision ceramics products include secondary fabrication or precision fabrication products and parts , for example , 3C , semiconductors , optical fibers , chemical engineering , mechanical industries etc.
Ceramics Introduction
CERAMIC PRODUCTS :
Lamp Holder
Lamp Bases
Insulator Stud
Ignition Plugs
Ceramic Fastener
Resistor, Case
Ceramics Burner Tube
Stack Washer
Ceramic Guiue Wheel ...etc.
Fiame Rods
Substrate
Heater Sink
Coating Refractories
Ceramics Introduction: New Material of Products
Ceramics Introduction: Properties of Various Ceramics
Properties of Various Ceramics
99% ALUMNA
92% ALUMINA
ZIRCONIA
STEATITE
MULLITE
CORDIERITE
Composition
99% AL2O3
92% AL2O3
ZrO2
MgO SiO2
3Al2O3 2SiO2
2MgO 2Al2O3 5SiO2
Material Choperties
Density
g/cm3
3.9
3.5
6
2.8
3
2.5
Water Absorption
%
0
0
0
0
0
0
Firing Temperature
OC
1,700
1,650
---------
1,350
1,300
1,350
Machanical Properties
Hardness
HV
1,700
1,400
1,300
800
1,000
800
Fiexural Strength (4 pt)
Kgf/mm2
3,500
2,800
11,000
900
1,100
900
Compessive Strength
Kgf/mm2
30,000
20,000
25,000
4,000
6,000
3,500
Thermal Properties
Maximum Use Temperature
oC
1,500
1,400
---------
1,100
1,000
1,000
Thermal Expansion 0-1000oC
/oC
8.0*10-6
7.8*10-6
9.5*10-6
6*10-6
6*10-6
4*10-6
Thermal Shock Resistance
T(oC)
200
220
360
200
300
250
Thermal Conductivity
W/m.k (25oC, 300oC)
31.4 15.9
21.8 12.6
3 ----
2.5 ---
4.2 ---
1.3 ---
Electrical Properrties
Volume Resistivity
20oC 100oC 300oC
◎.cm
>1012
1012-1013
>1012
>1012
1012-1013
3.1*109
>1012
----
5*109
>1012
1010-1011
5*108
>1012
1011-1012
------
>1012
107-108
3*105
Dielectric Strength
KV/mm
18
16
------
10
10
10
Dielectric Constant(100Mhz) (100 Mhz)
(E)
10
9.4
------
5.8
6
6
Dielectric Dissipateic Dissipation Factor
(tg o)
0.4*10-3
0.4*10-3
------
0.4*10-3
0.4*10-3
0.4*10-3
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High Precision Ceramic Parts
