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Physical Properties of Engineering Ceramics

MaterialSilicon Carbide(SiC)Silicon Nitride(Si3N4AluminaZirconia(ZrO2)
99.5%Al2O399.9%Al2O3
Trademark NVSiC® HSTSiN®
Material Code SCP01 SCP02 SCP03 SNP02 SNP03 ALP01 ALP02 ZRP01
Density
[g/cm3]
JIS R1634 3.1 3.1 3.1 3.2 3.2 3.9 3.9 6.0
Water Absorption
[%]
Underwater
substitution
method
0 0 0 0 0 0 0 0
Flexural Strength
[MPa]
JIS R1601 490 490 700 800 1030 440 450 980
Vickers Hardness
[GPa]
Vickers
JIS R1610
25 25 25 15 15 16 17 13
Young's Modulus
[GPa]
JIS R1602 430 430 436 290 307 370 370 210
Poisson's Ratio
[-]
JIS R1602 0.16 0.18 0.18 0.29 0.30 0.25 0.25 0.31
Fracture Toughness
[MPa・m1/2]
SEPB method
JIS R1607
3 3 3 6 7 3~4 3~4 6
Thermal Expansion
[×10-6/K]
RT~200℃
JIS R1618
3.1 3.1 3.1 1.6 1.6 6.3 6.3 10.0
RT~800℃
JIS R1618
4.3 4.2 4.3 3.1 3.2 7.7 7.9 10.7
Thermal Conductivity
[W/m・K]
RT
JIS R1611
140 170 132 24 36 33 30 3
Thermal Shock Resistance
[K]
JIS R1648 400 400 400 700 800 200~250 200~250 350
Dielectric Strength
[kv/mm]
JIS C2110 >10 >10 >10 >10 >10
Volume Resistivity
[Ω・cm]
3-terminal method
JIS C2141
104 106 >1014 >1014 >1014 >1014 >1012
Dielectric Constant
[-]
(1MHz) 8.0 7.5 10 10 40
Characteristics Corrosion
Resistant

High Hardness
High Thermal
Conductivity

High Resistance
High Strength

Small pores
High Thermal
Shock Resistance
Lightweight
High Strength
High Strength

High Reliability
General Purpose

High Rigidity
High Purity

High Rigidity
High Strength

Wear Resistant
MaterialSilicon Carbide(SiC)Silicon Nitride (Si3N4AluminaZirconia
(ZrO2
99.5%Al2O399.9%Al2O3
Trademark NVSiC® HSTSiN®
Material Code SCP01 SCP02 SCP03 SNP02 SNP03 ALP01 ALP02 ZRP01

The above property values are not guaranteed values.
For the purpose of improvements, the property values are subject to change without prior notice.

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