Zro2 Zirconia Ceramic Grinding Special-Shape Parts Grinding Ball Column for Ink and Various Sand Mills

• Application: Aerospace, Electronics, Medical, Refractory
• Flexural Strength: 1150 MPa
• Type: Ceramic Parts
• Compressive Strength: 2200 MPa
• Size: Customized
• Color: White
• Fracture Toughness: 7-10 MPa.M(1/2)
• Processing Service: Moulding
• Density: 6.0g/cm3
• Vicker′s Hardness: 12 Gpa
• Certificate: ISO 9001-2008,ISO14001-2004,OHSAS 18001-1999
• Transport Package: Carton Package
• Specification: Customized
• Trademark: INNOVACERA
• Origin: Fujian, China

Product Description

Product Description

 

Zirconia ceramic disc plates are characterized by high toughness, high bending strength, high hardness and high wear resistance.Zirconia ceramics have a dimensional hardness of 11.5GPa, a density of 6.0g/cm3 and a compressive strength of 2100MPa. Zirconia ceramics are widely used as ductile ceramics with fracture toughness up to 8.0 mpAM1/2.

Advantages:
smooth surface (easy to clean), good toughness, impact resistance, high hardness, wear resistance, low thermal
conductivity (heat insulation), generally no insulation and high temperature resistance

Applications: machinery, optical fiber, cutting tools, medical, food, chemical, aerospace

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)

Properties of Zirconium Oxide (ZrO2)
* High thermal expansion (α=11 x 10-6/K, similar to some types of steel)
* Excellent thermal insulation/low thermal conductivity (2.5 to 3 W/mK)
* Very high resistance to crack propagation, high fracture toughness (6.5 to 8 MPam1/2)
* Ability to conduct oxygen ions (used for the measurement of oxygen partial pressures in lambda probes)

 

(3Y-TZP)Zirconia Ceramic Properties
Item	Unit	Typical Values
Physical Properties
Colour		White
Density	g/cm³	>6
Zirconia Content	%	94.80%
Gas Permeability		0
Water Absorption	%	0%
Crystal Size	µm	0.5
Mechanical Properties
Rockwell Hardness(45N)	R45N	90
Vickers Strength(Load 500g)	Gpa(Kg/mm²)	11.5(1175)
Flexural Strength(20)	Mpa	1200
Compressive Strength(20)	Mpa	2100
Modulus of Elasticity(20)	Gpa	>200
Poisson's Ratio(20)		0.22-0.23
Fracture Toughness(20)	Mpam½	8
Thermal Properties
Thermal Conductivity(20-400)	W/ (m.K)	2.5
Thermal Expansion Coefficient	10­6 /	10
Thermal Resistance	△T	250