Novel Si-Al alloy for space-based application




Aluminum is the most common versatile material extremely for aerospace applications,such as sensor mounts, or small -ordinance initiators and high-power T/R modulus.Current housings for RF modules are generally made from either Kovar or 6061 Al.Because type 6061-T6 has the excellent properties of economics, rigidity, and ease of machining.Thus,Al 6061 is employed as packaging material due to these intricate features.The controlled expansion spray deposited Si-Al housing materials combine a low CTE approaching that of Kovar, with a thermal conductivity approaching that of 6061 Al, and a density that is less than that of both materials.


 

Material

CTE

Thermal  

Density

25

Cond.

g/cm3

ppm/

25W/(m.K)

 

AlSi42(42Si/58Al)

13.5

160

2.55

AlSi50(50Si/50Al)

11.5

140

2.5

AlSi60(60Si/40Al)

10

125

2.46

AlSi70(70Si/30Al)

7.5

120

2.43

6061-T6

22.6

210

2.7

 

Keep in mind that if you choose to work with inventory materials, we can build your sealing, parts or components in 2-3 days. Except this aspect, we can always order other Grades if your design requires a different type.

 

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