Ceradyne Ceralloy® 147-1E Silicon Nitride

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Ceradyne Ceralloy® 147-1E Silicon Nitride (discontinued **)
Categories:	Ceramic; Nitride
Material Notes:	Ceralloy® 147 Hot Pressed Silicon Nitride (HPSN) can be formulated into a variety of compositions having minimal densification aids. These HPSN compositions offer the highest strength of Ceradynes silicon nitrides. Finished components are machined at Ceradynes precision diamond grinding facility. Applications: wear components, semi conductor components. Information provided by Ceradyne Company Ceradyne was acquired by 3M in 2012. The product line has been extensively renamed and reconfigured.
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Physical Properties	Metric	English	Comments

Density	3.10 g/cc	0.112 lb/in³
Weibull Modulus	18	18

Mechanical Properties	Metric	English	Comments
Vickers Microhardness	1800	1800	0.3 kg/mm²
Modulus of Elasticity	310 GPa	45000 ksi
Flexural Strength	700 MPa @Temperature 23.0 °C	102000 psi @Temperature 73.4 °F
Poissons Ratio	0.27	0.27
Fracture Toughness	5.00 MPa-m½	4.55 ksi-in½
Shear Modulus	122 GPa	17700 ksi	calculated
Abrasion	1030	1030	Abrasive Wear Resistance Parameter

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm
Dielectric Constant	9.0	9.0

Thermal Properties	Metric	English	Comments
CTE, linear	3.20 µm/m-°C @Temperature 20.0 - 1000 °C	1.78 µin/in-°F @Temperature 68.0 - 1830 °F
Thermal Conductivity	42.0 W/m-K	291 BTU-in/hr-ft²-°F

Descriptive Properties
Purity, %	>98.5
Thermal Shock Parameter	540°C

**
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CCERDN04 / 687

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