Ceradyne Ekatherm EKasin® S Gas Pressure Sintered Silicon Nitride (Si3N4)

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Ceradyne Ekatherm EKasin® S Gas Pressure Sintered Silicon Nitride (Si3N4) (discontinued **)
Categories:	Ceramic; Nitride
Material Notes:	EKatherm® Silicon Nitride is the state-of-the-art material for a wide variety of components used in Aluminum Alloy casting processes. Features: High Temperature Resistance High Thermal Shock Resistance Electrically Insulating Applications: Molten Metal Processing Chemical Processing Information provided by Ceradyne, Inc. Ceradyne was acquired by 3M in 2012. The product line has been extensively renamed and reconfigured.
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Physical Properties	Original Value	Comments

Density	>= 3.24 g/cc
Porosity	0.00 %
Weibull Modulus	25

Mechanical Properties	Original Value	Comments
Vickers Microhardness	1450	HV (0.3); kg/mm²
Abrasive Hardness	891	Abrasive Wear Resistance Parameter
Modulus of Elasticity	310 GPa
Flexural Strength	700 MPa
Poissons Ratio	0.25
Fracture Toughness	7.00 MPa-m½
Shear Modulus	124 GPa	Calculated

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+12 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	3.60 µm/m-°C @Temperature 20.0 - 1000 °C
Thermal Conductivity	22.0 W/m-K

Descriptive Properties
Purity, %	>92
Theoretical Density, %	>99.5
Thermal Shock Parameter, °C	605

**
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CCERDN44 / 722

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