Magnesium and its alloys are active materials, and the oxide can easily form when they react with air and moisture (Czerwinski 2002). In addition, magnesium and its alloys are flammable and require strict safeguards during the manufacturing process. These disadvantages make the processing of magnesium alloys into finished products more challenging. These drawbacks cause defects such as cracks, ...

aa8090 is an extra light and deformable group of lithium containing aluminum alloys which have recently replaced some aerospace aluminum alloys, such as 2000 and 7000 series, due to their higher elastic modulus and lower specific weight. in this study, aa8090 matrix composites containing 3, 6 and 9 vol.% sic were cast using a modified stir casting method. the casting billets were deformed thoug...

A transition from a low to a high spin state in the magnetization saturation between 1000 and 1100 oC calcination temperature is observed in YIG powders prepared by oxides mixture. Spark plasma sintering of these powders between 900 and 950 oC leads to dense samples with minimal formation of YFeO3, opening the way to cosintering of YIG with metals or metallic alloys. The optical properties depe...

We have measured the linear polarization induced in a beam of submillimeter radiation when it is obliquely reflected by a flat mirror made of aluminum alloy. For angles of incidence in the range 15 degrees -45 degrees , we measured induced polarizations in the range 0.05%-0.25%. Our measurements are within a factor of 2 of theoretical predictions. We conclude that astronomical telescopes that i...