Properties of Industrial(fine) Ceramics

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Yu Youl T&C Co., Ltd.
[Korea]

Address:
3F, 186-301, Sipjeong-Dong Bupyung-Ku Incheon 403-130 Korea

Phone:
82-32-5268217

Contact name:
Ho-jik, Bae , Manager

Industrial(fine) Ceramics

	Properties of Industrial(fine) Ceramics

Model		Al2O3				ZrO2
Model		99.7%	96%	92%	Al2O3 +ZrO2	ZrO2 +Y2O3	ZrO2 +MgO
Density (g/cm³)		3.93	3.72	3.65	4.00	6.01	5.60
Bending Strength (kg/mm²)		40	35	35	50	90	60
Vickers Hardness(kg/mm²)		1,800	1,400	1,500	1,700	1,400	1,500
Fracture Toughness(MPam^1/2)		3.0	2.7	2.5	4.5	7.0	8.0
Thermal Shock Resistance(ΔT)		200	200	200	300	250	400
Working Temperature(°C)		1,500	1,500	1,400	1,500	800	1,000
Corrosion Resistance	Acid	Exce- llent	Good	Good	Good	Good	Good
Corrosion Resistance	Alkali	Exce- llent	Good	Good	Good	Good	Good
Merit		High Wear Resistance High Corrosion Resistance High Temperature Application				High Wear Resistance High Toughness Insulation of Heat

Model		TiC	Si₃N₄		SiC
Model		Al2O3+TiC	Si3N4	SiAlON	SiC
Density (g/cm³)		4.40	3.20	3.20	3.2
Bending Strength (kg/mm²)		50	80	80	50
Vickers Hardness(kg/mm²)		1,700	1,600	1,650	2,800
Fracture Toughness(MPam^1/2)		4.5	6.0	6.0	2.5
Thermal Shock Resistance(ΔT)		400	750	750	350
Working Temperature(°C)		1,000	1,100	1,200	1,400
Corrosion Resistance	Acid	Good	Good	Good	Excellent
Corrosion Resistance	Alkali	Good	Good	Good	Excellent
Merit		High Wear Resistance High Electrical Conductivity	High Thermal Shock Resistance High Temp. Strength High Wear Resistance		High Wear Resistance High Corrosion Resistance High Temp,Strength Excellent Hardness

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