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Zirconia (Zirconium Oxide, ZrO2)

Zirconia, mainly made up of ZrO2, has the highest mechanical strength and fracture toughness at room temperature compared to all major advanced ceramics. It is widely used to make cutting blades, scissors and customized parts such as tubes, plates, granules turbine, etc. It is also used for pump parts, due to its superior surface smoothness.

Performance	Unit	Parameters
ZrO₃ (HfO₂)	%	94.6±0.2
Y2O3	%	5.4±0.2
Density	≥g/cm³	6.05
Hardness	≥HV	1050-1350
Flexural Strength	≥Mpa	950-1250
Fracture Toughness	Mpa.m^0.5	12-12.5
Maximum Service Temperature	℃	750
Coefficient Of Linear Expansion	X10^-6 /℃.K	6.5-11.2
Flexural Strength	Mpa≥	1100
Dielectric Constant	20℃,1MHZ	26-33
Modulus Of Elasticity	Gpa	205-220
Thermal Conductivity	W/m.K(20℃)	22
Water Absorption	%	0

Alumina (Aluminum Oxide, Al2O3)

Alumina (Aluminum Oxide, Al2O3)

Alumina, as the most well-known and most widely used new ceramic materials in the market, it has been used for decades in electrical parts due to its high electrical insulation. Alumina is also widely used in mechanical parts for its good performance on strength, anti-corrosion and wear-resistance.

Alumina	Unit	95	99	99.5	99.7
Density	≥g/cm³	3.7	3.8-3.85	3.85	3.85
Hardness	≥HV	86	88	88	88
Flexural Strength	≥Mpa	950-1250	300	350	400
Fracture Toughness	Mpa.m0.5	5	5.5	5.5	5.5
Maximum Service Temperature	℃	1500	1500	1500	1500
Coefficient Of Linear Expansion	X10-6 /℃.K	6.5-11.2	7.5	8.2	8.2
Dielectric Constant	20℃,1MHZ	26-33	9.0	9.2	9.2
Flexural Strength	Mpa≥	200	350	350	350
Modulus Of Elasticity	Gpa	300	350	350	350
Thermal conductivity	W/m.K(20℃)	20	25	25	25

Silicon Carbide

Silicon Carbide

Silicon carbide, mainly made up of SiC, is the most corrosion-resistant ceramics in the market. It is widely used in mechanical seals, pump parts, rings, etc. Its strength can be maintained in high temperature up to 1400℃.

Performance	Unit	Parameters
Density	≥g/cm³	2.6-3.15
Hardness	≥HV	9.2-9.6
Flexural Strength	≥Mpa	15.5
Fracture Toughness	Mpa.m^0.5	6-8
Maximum Service Temperature	℃	≥1550
Coefficient Of Linear Expansion	X10^-6 /℃.K	4.5-11.2
Dielectric Constant	20℃,1MHZ	26-33
Coefficient Of Thermal Conductivity	W/m.K	45
Flexural Strength	Mpa≥	50
Modulus Of Elasticity	Gpa	300-330
Thermal Conductivity	W/m.K(20℃)	45

Silicon Nitride

Silicon Nitride

Silicon nitride, mainly made up of Si3N4, has excellent performance on shock resistance and high temperature resistance. These properties make it becomes the ideal choice for the automotive engines and gas turbines manufacturers. Besides, it is used for turbocharger rotors, hot plugs and glow plugs in diesel engines.

Performance	Unit	Hot Press Sintering	Reaction Sintering
Density	≥g/cm³	3.24	2.4-2.6
Hardness	≥HV	1490	790
Flexural Strength	≥Mpa	990	280
Fracture Toughness	Mpa.m^0.5	6-8
Maximum Service Temperature	℃
Coefficient Of Linear Expansion	X10^-6 /℃.K	3.28	2.99
Dielectric Constant	20℃,1MHZ	8.3	8.3
Flexural Strength	Mpa≥	700-1200	700-1000
Modulus Of Elasticity	Gpa	290-380
Thermal Conductivity	W/m.K(20℃)	28.8	10.1

Aluminium Nitride

Aluminium Nitride

Aluminum nitride is used in optoelectronic engineering, including as dielectric layers in optical storage interfaces and electronic substrates, as chip carriers with high thermal conductivity, and for military applications.Aluminum nitride ceramics have the characteristics of high room temperature and high temperature strength, small expansion coefficient and good thermal conductivity, and can be used as heat exchanger materials for high temperature structural parts.

Aluminium Nitride	Unit	Parameters
Density	≥g/cm³	2.61-2.93
Hardness	≥HV	1200-1600
Flexural Strength	≥Mpa	280-310
Fracture Toughness	Mpa.m0.5	≥400
Max. Service Temperature	℃	2200
Coefficient Of Linear Expansion	X10^-6 /℃.K	5.7
Dielectric Constant	20℃,1MHZ	9.4-9.5
Coefficient Of Thermal Conductivity	W/m·k	20.9-29.3
Flexural Strength	Mpa≥	100-300
Modulus Of Elasticity	Gpa	310-350
Thermal Conductivity	W/m.K(20℃)	20

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