China is close to volume production of aero-engines that can handle higher internal temperatures, increasing performance, durability or both, very probably for use in combat aircraft. The shift is revealed in market inquiries for large supplies of rhenium, a rare metal that increases the temperature-resistance of turbine blades. Timing of production of the new or upgraded engines is unclear, but the metal is needed from 2016. Likely, some is intended for stockpiling. Quite apart from the ...


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