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Thermal Management

Composite Materials in Part Form for Thermal Management in Electronics

Silicon Carbide Aluminum Metal Matrix Composites

Overview

Key Advantages
  • Superior thermal properties compared to other silicon carbide aluminum products.
  • Thermal expansion is closely controlled to match the components used in electronic packages.
  • Offered in both simple and complex fabricated shapes and in any variety of net shaped parts.
  • Cost effective solutions to many thermal management problems.
  • Manufacturing process does not require a separate preform to produce the composite product.

 

 

 

 

 

 

 

Available Types of Plating
Electroless Nickel MIL-C-26074E
Class 1, 2, 3 or 4
Electrolytic Nickel QQ-N-290A
Class 1 or 2
Hard Gold MIL-G-54204C
Type 3 Grade A
Electrolytic Copper MIL-C-14550B
Class 1, 2, 3 or 4
Tin MIL-T-10727C
Silver As specified
Parts are typically bake tested at
temperatures up to 400°C

Materials are available as finished parts with the following dimensions:

  • Width: 6 inches (152 mm) maximum
  • Length: 10 inches (254 mm) maximum
  • Thickness: 0.015 inches (0.391 mm) minimum

68±2% VOLUME FRACTION ALPHA SILICON CARBIDE
B C
DENSITY lb./in.3
Gm/cc
0.110
3.04
0.109
3.03
THERMAL
EXPANSION
30-150°C
(in/in x 10-6/°C)
7.5 6.8
30-400°C
(in/in x 10-6/°C)
8.7 7.6
THERMAL
CONDUCTIVITY
W/MK
BTU/Hr.Ft.°F
220
128
226
131
ELECTRICAL
CONDUCTIVITY
%IACS 5.8 5.4
TENSILE
STRENGTH
KSI
MPa
31
210
33
225

Mean Coefficient of Thermal Expansion (CTE) vs. Temperature

 
 
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