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    Molybdenum Copper
      (Mo-Cu)

    Cu/Mo/Cu(CMC)

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    Glid Copper

    Oxygen-free Copper(OFC)

    Low CTE Alloys
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Product Brief Introduction:
Glid Copper refers to a family of Copper-based metal matrix composite (MMC) alloys mixed primarily with aluminum oxide ceramics particles. The addition of small amounts of aluminum oxide has minuscule effects on the performance of the copper at room temperature (such as a small decrease in thermal and electrical conductivity), but greatly increases the coppers resistance to thermal softening and enhances high elevated temperature strength. Glid has higher hardness value (HV > 125) and tensile strength (>350 MPa), compared to OFCs HV40 and 250 Mpa.

The addition of aluminum oxide also increases the thermal conductivity or electrical conductivity is required while also maintaining strength at elevated temperatures or radiation levels.
Product Properties:
Material Melting Point Softening Temperature Density at 20 Thermal conductivity at 25 Coefficient of thermal
expansion at 20
C15715 1083 800 8.84 365 17.6
C1560 1083 910 8.81 322 17.6


Composition and Physical properties of various grades of Glid Copper compared to oxygen-free copper (OFC) (at room temperature unless otherwise noted). 
UNS Alloy Number  Aluminum Oxide Content Melting
Point
Density
g/cm3
lb/in3
Electrical Conductivity Thermal
Conductivity
Coefficeent of Thermail Expansion
(range 20-150,
68-300 oF)
Modulus of Elasticity
OFC 0 % 1,083
(1,981 oF)
8.94
(0.323)
58 Meg S/m
(101 % IACS)
391 wat/m/OK
(226 BTU/ft/hr/OF)
17.7 m/m/
(9.8 -in/in/OF)
115GPa
(17 Mpsi)
UNS-
C15715
0.3 wt. % 1,083
(1,981 oF)
8.90
(0.321)
54 Meg S/m
(92 % IACS)
365 wat/m/OK
(211 BTU/ft/hr/OF)
16.6m/m/
(9.2 -in/in/OF)
130GPa
(19 Mpsi)
UNS-
C15760
1.1 wt. % 1,083
(1,981 oF)
8.81
(0.318)
45Meg S/m
(78 % IACS)
322 wat/m/OK
(186 BTU/ft/hr/OF)
16.6m/m/
(9.2 -in/in/OF)
130GPa
(19 Mpsi)

Additional materials and elements can be added if lower thermal expansion is required, or higher room temperature and elevated temperature strengths. The hardness can also be increased.
A composite material of Glid AL-60 and 10% Niobium provides high strength and high conductivity.
The hardness is comparable to many copper-beryllium and copper-tungsten alloys, while the electrical conductivity is comparable to RWMA Class 2 all.
 


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