Specifications

99.7%purity Alumina boat in industry
1. Stocks at different sizes avalible.
2. Reasonable price of ceramic boat.
 

           99.7%purity Alumina boat in industry      

  

ceramic boat:

1. Stocks at different sizes avalible.

2. Reasonable price of ceramic boat.

3. Raw material from GERMANY.

 

Characters of alumina crucible and ceramic boat:

 

1)High purity: Al2O3>99%, high chemical etching resistance

2)Temperature tolerance, at 1600°C for long term application, and at 1800°C for short term application

3)Resistant to sudden cold and hot, un-explosive

4)High density of slip casting, high purity alumina crucible, specifications of 99% corundum crucibles: 5ml 10ml 15ml 20ml 25ml 30ml 50ml 100ml 150ml 200ml- 2500ml

 

Product description of ceramic boat:

 

Name	Squre alumina crucible
Chemical ingredient	Al2O3	>=99%
	R2O	<=0.2
	Fe2O3	<=0.1
	SiO2	<=0.2
Volume density (g/cm2)		>=3.80
Apparent porosity (%)		<1
Bending strength (Mpa)		>350
Compression Strength(Mpa)		>12000
Dielectric constant ∑(1MHz)		2
Max. service temperature (.C)		1800

 

Application of alumina crucible and ceramic boat:

 

It is used to make TV powder, phosphor, rare earth materials, precious metals and an ideal roasting container to roast high, medium and low ceramic capacitors NTC, PTC piezoelectric ceramics and lithium cobalt oxide, lithium manganese oxide powder.

 

Alumina (Al2O3) is a hard, chemically resistant material and has the ability to withstand very high temperatures 

in aggressive environments. CS ceramic offers Alumina with various purity levels, including 99.8% and 99.0%. 

The level of purity, grain size, and density required is dependent on the rigors of the application and the 

component configuration.

 

Item	Test Condition	Unit&Symbol	95% Al2O3	99% Al2O3	99.7% Al2O3
The main chemical ingredient			Al2O3	Al2O3	Al2O3
Bulk Density		g/cm3	3.6	3.89	3.96
Maximum Use Temperature			1450°C	1600°C	1650°C
Water absorption		%	0	0	0
ROHS Hardness			≥85	≥89	≥89
Flexural strength	20° C	MPa (psi x 103)	358 (52)	550	550
Compressive Strength	20° C	MPa (psi x 103)	2068 (300)	2600(377)	2600(377)
Fracture Toughness	K(I c)	Mpa m1/2	4 - 5	5.6	6
Coefficient of thermal expansion	25-1000° C	1X 10-6/°C	7.6	7.9	8.2
Coefficient of thermal conductivity	20° C	W/m °K	16	30	30.4
Thermal Shock Resistance	Tc	°C	250	200	200
Dielectricity constant	1MHz.25°C		9	9.7	9.7
Dielectric strength		ac-kV/mm (ac V/mil)	8.3 (210)	8.7 (220)	8.7 (220)
Volume Resistivity	100°C	ohm-cm	> 1013

 

SHENGSHIKANG science Co.,Ltd.

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