Shape Memory Alloy Rock Splitters (SMARS)

摘要

Glenn's revolutionary Shape Memory Alloy Rock Splitters (SMARS) device is fabricated from nickel-titani-um-halfnium (NiTiHf), nickel-titanium-zirconium compositions, or a combination. These compositions contain a secondary, nanometer-sized precipitate phase that is produced through processes of compositional control and aging heat treatments. Glenn's novel materials and processes have yielded a shape memory alloy (SMA) composition that produces much higher stresses than other SMAs on the commercial market.