Sample to map custom processing alumina ceramic pieces

Density Density g / cm3 3.75 Alumina Alumina Content% 96% content of permeability Gas permeability 0 Water Absorption Water Absorption% 0% Rockwell hardness Rockwell Hardness (45N) R45N 78 Vickers hardness Vickers Hardness (Load 500g) Gpa (Kg / mm 2) 11.5 (1175) Bending Strength Flexural Strength (20 ° C) Mpa ≥300 Compressive Strength Compressive Strength (20 ° C) MPa 2100 Modulus of elasticity Modulus of Elasticity (20 ° C) Gpa 300 Poisson's ratio Poisson's Ratio ( 20 ° C) 0.22-0.23 Fracture Toughness Fracture Toughness (20 ° C) MPam 1/2 3.5-4.0 thermal conductivity Thermal Conductivity (20 ° C) W / (mK) ≥25 thermal expansion coefficient of Thermal Expansion Coefficient 10 -6 / ° C 6.5-7.5 specific heat capacity Specific heat J / (kg.k) 780 thermal shock resistance Thermal Shock Resistance △ T ° C 200 Maximum operating temperature Maximum Use Temperature ° C 1600 breakdown strength (dielectric strength) Dielectric Strength KV / mm> 30 Dielectric Constant εr 9-10 permittivity dielectric loss Dielectric Loss Angle (1MHz) 0.0002 volume resistance Volume Resistivity (20 ° C) Ω.m> 10 15