Morgan Advanced Ceramics RBSN Reaction bonded silicon nitride Mac-RBSNS

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Morgan Advanced Ceramics RBSN Reaction bonded silicon nitride Mac-RBSNS
Categories:	Ceramic; Nitride
Material Notes:	An advanced synthetic ceramic with a nominal Si3N4 content of 99%. Reaction bonded silicon nitride (RSBN) is made by directly reacting compacted silicon powder with nitrogen to produce porous components of relatively low density and possessing exceptional thermal. Prime Features: Porous, low density material Exceptional resistance to thermal downshock Excellent resistance to wetting and attack by molten non-ferrous alloys containing aluminum, magnesium, copper, zinc and lead. Low thermal conductivity Good electrical resistance Typical Applications: Welding jigs and fixtures Molten non-ferrous metal handling systems Riser tubes and transfer tubes Delivery systems and degassing systems Special crucibles Production Capabilities: Net shape forming Prototype, batch and volume production Information provided by Morgan Advanced Materials
Key Words:	RBSN
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Physical Properties	Original Value	Comments

Density	2.50 g/cc	fired
Open Porosity	20 %	nominal, apparent

Mechanical Properties	Original Value	Comments
Modulus of Elasticity	170 GPa @Temperature 20.0 °C	Young's
Flexural Strength	200 MPa @Temperature 20.0 °C	3 point
Compressive Strength	650 MPa

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+10 ohm-cm @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	3.10 µm/m-°C @Temperature 20.0 - 1000 °C
Specific Heat Capacity	1.10 J/g-°C
Thermal Conductivity	12.0 W/m-K @Temperature 20.0 °C
Maximum Service Temperature, Air	1300 °C	no load

Component Elements Properties	Original Value	Comments
Si3N4	99 %

Descriptive Properties
Color	gray
Thermal Downshock	>600 sC

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CMORF5083 / 200321

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