3M Techical Ceramics Boron Carbide Powder

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3M Techical Ceramics Boron Carbide Powder
Categories:	Ceramic; Carbide
Material Notes:	Know as TETRABOR® when a ESK Ceramics product. Information provided by 3M Technical Ceramics, formerly ESK Ceramics.
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Physical Properties	Metric	English	Comments

Density	>= 2.48 g/cc	>= 0.0896 lb/in³	DIN EN 623-2
Porosity	<= 0.50 %	<= 0.50 %	DIN EN 623-2
	<= 1.0 %	<= 1.0 %	DIN EN 623-2
Grain Size	<= 10 µm	<= 10 µm
Weibull Modulus	15	15	[m]; DIN EN 843-5

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	27 @Pressure 100 MPa	27 @Pressure 14500 psi	DIN EN 843-4
Hardness, Vickers	26 @Pressure 1000 MPa	26 @Pressure 145000 psi	DIN EN 843-4
	31 @Pressure 50.0 MPa	31 @Pressure 7250 psi	DIN EN 843-4
Tensile Modulus	420 GPa	60900 ksi	Young's; DIN EN 843-2
Flexural Strength	460 MPa	66700 psi	4-pt bending; DIN EN 843-1
Compressive Strength	>= 2800 MPa	>= 406000 psi	DIN 51104
Poissons Ratio	0.18	0.18	DIN EN 843-2
Fracture Toughness	5.00 MPa-m½	4.55 ksi-in½	SENB

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00 ohm-cm	1.00 ohm-cm	DIN EN 50359

Thermal Properties	Metric	English	Comments
CTE, linear	4.50 µm/m-°C @Temperature 25.0 - 500 °C	2.50 µin/in-°F @Temperature 77.0 - 932 °F	DIN EN 821-1
	6.30 µm/m-°C @Temperature 500 - 1000 °C	3.50 µin/in-°F @Temperature 932 - 1830 °F	DIN EN 821-1
Specific Heat Capacity	0.940 J/g-°C	0.225 BTU/lb-°F	C DIN EN 821-3
Thermal Conductivity	36.0 W/m-K	250 BTU-in/hr-ft²-°F	DIN EN 821-2

Descriptive Properties
Color	Silver gray metallic
Microstructure	fine-grained
Sonic velocity	13500 m/s		DIN EN 843-2
Thermal Stress	204 K		R1 = sB·(1-ν)/(α·E)
	7 W/mm		R2= R1-λ

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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CESK04 / 183296

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