MarkeTech Repton 632 Mullite

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MarkeTech Repton 632 Mullite (discontinued **)
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Brand 632 features: Light Weight Setter. REPTON setter tiles, kiln furniture, and special fixtures are lightweight, ridge, and high strength ceramics that resist distortion and spalling, even when thermal cycled many times. They are available with a smooth or a unique textured surface that permits pinpoint contact with the load. Sticking can be eliminated as well as providing a surface that breathes, allowing gasses from the ceramic to escape. Applications include firing ceramic capacitors, SOFCs, PZTs, hard and soft ferrites, co-fired substrates and powdered metals. REPTON is available in a wide range of compositions that include a range of alumina, mullite/alumina, zirconia, cordierite, magnesia, and aluminum titanate. MarkeTech International is no longer in business.
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Physical Properties	Original Value	Comments

Bulk Density	1.50 g/cc
Density	3.41 g/cc	calculated from bulk density after subtracting pore volume
Porosity	56 %

Mechanical Properties	Original Value	Comments
Flexural Strength	>= 27.0 MPa

Thermal Properties	Original Value	Comments
CTE, linear	4.00 µm/m-°C @Temperature 300 °C
	5.00 µm/m-°C @Temperature 900 °C

Component Elements Properties	Original Value	Comments
Al2O3	80 %
SiO2	20 %

Descriptive Properties
Spall Resist	400°C

**
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