95% alumina ceramic shaft

Items                                     Unit   

unit     95%Al2O3         99%Al2O3

Density                                    g/cm3       3.6   3.9

Flexural Strength                       MPa      313         340

Compressive Strength                    MPa 3400         3600

Modulus of Elasticity                 GPa  350  380

Impact Resistance                      MPa•m1/2       4       5.1

Weibull Modulus                        m      10     10

Vickers Hardness                        HV0.5       1500         1650

Thermal Conductivity                   W/mk       24     27

Highest Application Temperature           ℃     1750         1750

Volume Resistivity at 20℃              20℃

Volume resistance Ω.cm20  >1014       >1014

Dielertric strength                     Dielectric strength     KV/mm     20     25

Thermal expansion                        Coefficient of thermal expansion      X10-6/K    5.0-8.3     5.4-8.3