Manhattan Scientifics Inc (MHTX)

[rustydog62]

Try doing some reading from the JOM article...

"The typically low strength, low ductility, and rapid biodegradation of many Mg alloys limit their suitability for medical use. However, these problems can be addressed by creating ultrafine-grain (UFG) variants of Mg alloys. For this purpose, an economical continuous equal channel angular pressing (ECAP-C) method was applied to produce UFG AZ31 Mg. An ultimate tensile strength of 333.5 MPa with an elongation of 28% was achieved, and continuous coil-to-coil ECAP-C processing was demonstrated".

"Magnesium (Mg) and magnesium alloys are of growing interest for multiple industries, including the medical industry, because of their high specific strength and ability to be harmlessly absorbed by the body. In the context of medical devices, metallic implants that predictably degrade and are absorbed over time are alluring for several reasons. Current orthopedic devices such as plates, screws, and nails will often require a secondary removal surgery, incurring additional risk of infection, patient discomfort, and cost. The extended presence of vascular devices (e.g., peripheral stents) will often lead to late-term restenosis".

"The microstructures and mechanical properties achieved via isothermal ECAP-C were sufficiently encouraging to motivate exploration of coil-to-coil ECAP-C processing. Coil-to-coil processing offers efficiency for scaling commercial ECAP-C and exploits the intrinsic curvature that exists in ECAP-C billets. Rotations of the billets between passes are straightforward for ECAP of single rods so long as the billets remain straight. However, this is rarely the case. If a billet with a length of 3 m has moderate curvature, interpass rotations of 90 degrees and billet pre-heating in furnaces can be impractical because of the difficulty of handling. For long billets with slight curvature, it is advantageous to coil the billets, especially in view of the need for interpass billet rotations. Economical production of UFG Mg favors the implementation of coiling of billets to maximize throughput and minimize yield loss".

In a picture it shows the Prototype coil-to-coil system in operation with the ECAP-C machine at the Nanostructured Metals Manufacturing Testbed.

Any more despicable questions?