Aluminum alloys reinforced with silicon carbide, alumina, and boron carbide
increase specific stiffness, wear resistance, and can improve the thermophysical
properties of cast components. Using MIT's Three Dimensional Printing (3DP™)
technology, highly detailed porous ceramic preforms are "printed" directly from
CAD files without tooling. These preforms can then be cast by two methods
depending on the complexity of the part design - either loaded into pre-machined
tooling for aluminum infiltration or by MMCC's TLM™ process.
METSIC™
Al 6061 T6
1010 Steel
Matrix
Al
-
-
Reinforcement %
SiC (40 v/o)
-
-
CTE (ppm/°C)
10-12
23.6
12.2
TC (W/mK)
185
167
49
UTS (MPa)
300-400
310
365
Youngs Modulus (GPa)
150
69
205
Density (g/cc)
2.9
2.7
7.8
Challenging part geometries that are impossible to cast using machined molds
can be made by MMCC's revolutionary TLM™ (Tool-Less Mold) casting process
currently under development.
Woven Carbon Fiber Reinforced Alloys
High modulus pitch based graphite woven fabric preforms are pressure infiltrated
with aluminum and magnesium alloys to increase the specific stiffness of
components for aerospace and other structural applications. These composites
have the stiffness of steel and weigh less than aluminum, offering design
engineers enhanced system design flexibility and performance.
Filament Wound Carbon Fiber Composites
High modulus filament wound graphite fiber preforms are pressure infiltrated
with aluminum and magnesium alloys to increase the specific stiffness of
components. These composites have the stiffness of steel and weigh less than
aluminum and are actively sought in some applications to replace beryllium
structures.
Company Details
Metal Matrix Cast Composites, LLC manufactures highly loaded MMC's using ceramic particulate and graphite fiber reinforcements in non-ferrous matrices. Our materials provide performance enhancements over traditional metal components that are... more
