A porous material made of titanium for implants.
Scientists have developed a unique nanostructured porous material based on titanium with regulated porosity for bio – compatible and mechanical osteointegrated medical implants. For osteointegration characteristics of the material is no worse than currently existing, but in the absence of pitting exceeds them. This material should provide full germination of bone tissue within 3 months.
As the developers say, “for osteointegration characteristics of the material is no worse than currently existing, but in the absence of pitting is superior to them.” For making first use the original fibers approximately 20 microns in diameter, obtained high-speed solidification of the melt, when commercially pure titanium is melted e-beam gun. Then pressing the fibers of titanium, then diffusion welding or sintering under a certain load. But that’s not all: the next step is turnovogorna treatment of porous material (introduction to titanium hydrogen thermal diffusion method (at heating in the medium of gaseous hydrogen) and its removal by subsequent vacuum annealing). During processing, the titanium undergoes full phase recrystallization, with the result that its structure is ground to true for analysis of nanorods, and in places of contact of individual fibers formed of common structural components, providing a significant increase in strength of the porous material. After this process the porous material becomes stronger by almost 2 times. The output is a durable material that allows bone tissue to grow through the easily available at all the through micropores with a size of from 50 to 500 microns.
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