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High Heat Resistance Ceramic Crucible Alumina Ceramic Melting Crucibles

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High Heat Resistance Ceramic Crucible Alumina Ceramic Melting Crucibles

Country/Region	china
City & Province	jiangsu
Categories	Steel Sheets

Product Details

High Heat Resistance Ceramic Crucible Alumina Ceramic Melting Crucibles

Alumina ceramic crucible

1.Ceramic material composition:

· 95%--99.99% Alumina (Al2O3) · Silicon Carbide · Silicon Nitride
· TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)
· ZDY: Yttria fully stabilized Zirconia (ZrO2)

...

2.The properties of ceramic:
·Excellent physical & chemical stability ·High temperature resistance
·Excellent wear & pressure & corrosion& insulation resistance and thermal conductivity...

Properties	Units	AL2O3	ZrO2	SiC	Si3N4
Density	g/cm3	3.65-3.93	5.95-6.0	3.12	3.23
Water absorption	0	0	0	0	0
Poission`s ratio	/	0.21-0.22	0.3	0.17	0.26
HV hardness hv	MPa	1650	1300-1365	2800	1500
Flexural strength	MPa	310	950	390	720
Heat conductivity	W/m*k	26-30	2-2.2	120	25
Electrical resistivity	Ω*mm2/m	>1016	>1015	>103	>1013
Dielectric constant	/	9.6	29	9.66-10.03	/
Dielectric strength	KV/mm	8.7	9	/	/
Coefficientof thermal expansion	10-16/k	7.9-8.5	10.5	3	3.2
Modulus of elasticity young`s mod	GPa	280-340	210	440	300
Flexural strength(700℃)	MPa	230	210	380	450
Compressive strength	MPa	2200	2000	1800	2300
Max use temperature	℃	1750	1050	1550	1050
Resistance to acid alkaline	/	high	high	high	high
Thermal shock resistance	T(℃)	180-220	280-350	230-260	/
Fracture toughness	MPa*m1/2	4.2	10	3.9	6.2
Tensile strength	MPa	248	250	/	/

Manufacturing parameters:

Dimensional accuracy	Up to 0.001mm
Smoothness	Highest possible mirror
Concentricity	Up to 0.003mm
Parallelism	Up to 0.002mm
The inner hole tolerance	The minimum 0.005mm
Straight flute	The narrowest 0.1x100mm
The thickness of the size	Minimum to 0.02mm
The screw thread	Minimum internal thread M2
Cylindricity	Up to 0.004mm
The linear tolerance	Up to 0.001mm
The smallest aperture	The minimum 0.07mm
Precision process	CNC maching,grinding,lapping
Surface finish	Glazed,polishing or metallized
Visual quality: 1. No cracks, no dark dots, no contamination and sharp edges; 2. Evenly distributed glaze with very smooth surface

Additional Information:
·In stock items will typically ship in a few working days.
·Unit price and estimated ship dates will be calculated when the length and quantity are specified.
·Diameter tolerance ± 3% or ± 0.003" (0.076 mm), Straightness: ≤ 0.003"/1.000" cumulative.
·Can be customized

Customization:
As a manufacturer of ceramic parts, we offer customization of ceramic special sizes and shapes.High Precision, Fast Delivery Time, High Composition (with test report).

Lead time: 10-20 working days for the mass with free sample of mass ; Minimum order quantity : 1qty

As a manufacturer of ceramic parts, we offer customization of ceramic for special sizes and shapes.High Precision, Fast Delivery Time, High Composition.