Abstract: A method of additive manufacturing is provided. The method comprises first forming a part injecting a first gas into a build chamber and depositing a first layer of metal-containing powder over a build platform. The first layer of powder is melted a laser and then cooled. The above steps can be optionally repeated to build additional layers. A coating is formed on the surface of the part by injecting a second, different gas into the chamber over the surface of the part. A portion of the surface is selectively heated with a second laser device, thereby chemically altering the heated portion to form the coating. After forming the coating, an additional aliquot of the first gas is injected into the chamber while venting the second gas from the chamber.

Abstract: Embodiments of the invention are directed to a vascular structure forming implant produced by additive manufactured Ti-6Al-4V scaffolds a living implant.

Abstract: Embodiments of the invention are directed to a vascular structure forming implant produced by additive manufactured Ti-6Al-4V foams a living implant.

Abstract: A method and apparatus for creating dynamic shear within metallic and non-metallic test sample materials under controlled conditions related to high ballistic impact includes the use of test sample having an end face with non-symmetrically placed surfaces extending away from a leading edge of the end face.

Abstract: A method and apparatus for creating dynamic shear within metallic and non-metallic test sample materials under controlled conditions related to high velocity ballistic impact; metallurgical analysis techniques for studying the resultant sheared regions, analytic models for interpretation and characterization of the shear phenomena, and resulting constitutive relations are described. The test sample and receptor or target shapes together with the physical arrangement and conditions of impact are varied to provide a unique shear localization within the samples such that the shear process occurs along controlled and specific directions. The shear is observed and characterized through use of newly developed preparation techniques so that the samples and the localized shear can be examined with standard metallurgical instruments such as metallography and electron microscopy.

Abstract: Superconductive structures and a method of forming the same wherein an assembled mass (12) of superconductive particles, or of a mixture of superconductive particles and particles having other properties, are formed into a desired confined configuration and consolidated into a rigid useful unitized body through shock-wave treatment performed at relatively lower temperatures.

Abstract: A method for the implosive consolidation into a solid body of a mass of free particles, which mass consists, selectively, entirely of amorphous particles, or a mixture of amorphous and nonamorphous particles. During the consolidation act, pressure and temperature are controlled in a manner which assures that the consolidated amorphous particles in the solid body exhibit substantially the same amorphous characteristics as those displayed by the unconsolidated, free amorphous particles.