CeramTec SL 200 BG Silicon Nitride, Si3N4-Y2O3

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CeramTec SL 200 BG Silicon Nitride, Si3N4-Y2O3
Categories:	Ceramic; Nitride
Material Notes:	SL 200 BG is a silicon nitride ceramic used to make welding rollers, pins, and components, gas nozzles, and forming tools. Silicon nitrides are ideal for components working under mechanical loads and engine parts, even and especially at elevated temperatures. Their property profile includes: extremely high strength, good crack resistance, outstanding wear resistance, good heat conductivity, very low heat expansion, and good resistance to sudden changes in temperature. Due to these properties and its low weight, silicon nitride is a material for the highest demands.
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Physical Properties	Original Value	Comments

Density	3.21 g/cc	DIN EN 623-2
Water Absorption	0.00 %	Open Porosity; DIN EN 623-2
Permeability	0.00	%, Gas
Weibull Modulus	16	DINV ENV 843-5

Mechanical Properties	Original Value	Comments
Vickers Microhardness	1650	HV1; DINV ENV 843-4
Tensile Modulus	310 GPa	Young's; DINV ENV 843-2
Flexural Strength	850 MPa	DIN EN 843-1
Compressive Strength	3000 MPa	DIN 51067T1
Poissons Ratio	0.26	DINV ENV 843-2
Fracture Toughness	7.00 MPa-m½	K_IC (SEVNB); DIN CEN/TS 14425-1
Shear Modulus	123 GPa	Calculated

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	IEC 672-1
Dielectric Constant	8.0 @Frequency 1e+6 Hz	IEC 672-1
Dielectric Strength	19.0 kV/mm	IEC 672-1
Dielectric Loss Index	0.0040 @Frequency 1e+9 Hz	IEC 672-1

Thermal Properties	Original Value	Comments
CTE, linear	3.20 µm/m-°C @Temperature 20.0 - 400 °C	DIN EN 821-1
	4.30 µm/m-°C @Temperature 20.0 - 1000 °C	DIN EN 821-1
Specific Heat Capacity	0.700 J/g-°C	DINV ENV 821-3
Thermal Conductivity	21.0 W/m-K	DIN EN 821-2
Maximum Service Temperature, Air	1300 °C
Maximum Service Temperature, Inert	1600 °C

Descriptive Properties
Ra = Arithmetic Mean Roughness Value (µm)	<0.1
Thermal Shock Resistance R1 (K)	569	calculated; R1 = [σ_s (1-µ)] / (α·E)

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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CCERA916 / 107516

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