Metal optics made of Aluminium 6061 have been widely used to fulfill the demands of an athermal instrument design. Diamond turned metal mirrors are standard optical components in mid infrared astronomical instrumentations working at cryogenic temperatures. Structures and optics can be made from the same material (aluminium) to avoid thermal stress due to different CTEs. However, surface roughness, scattering beh
Silicon-aluminum alloys have the outstanding properties,such as adjustable low coefficient of thermal expansion(CTE) with a value of 7~17 ppm/ by controllable the contents of silicon and aluminum,high thermal conductivity of >120W/m.K,low density of 2.43~2.6g/cc,good manufacturability(maching and plating with Au/Ni/Ti/Ag).Therefore,the AlSi alloys have a wide range of applications for electronic and allied demandi
More concerned were be pressed for the high reliability hermetic packages which acting as a key component in microwave devices for defense and avionics industries,due to the electronic devices are developing towards miniaturization,lightweight,high-frequency working and high-efficient density,multifunctional and high reliability.As a key factor,using excellent and new electronic packages material are an effecti
Competitive advantages of using the hypereutectic Si-Al alloys cylinder sleeves in engine components:
A lightweight cylinder block can be achieved.
In comparision of cast iron cylinder liner,the thermal conductivity and coefficient of thermal expansion is far higher and greater than that of cast iron ones,a good tight contact between the cylinder liner and cylinder block body can be achieved upon temperature el
