Method for production of novel materials via ultra-high energy electron beam processing

摘要

A body comprising at least two components having one or more different properties and a method of producing the same are disclosed. One of the body components is in the form of particles with optional adhesive interlayers. A second of the components has a surface locally melted in a predetermined pattern and only to a predetermined depth by scanning an electron beam there across to incorporate the particles and form a metal composite film. Thereby, a predetermined volumetric concentration of the incorporated particles varies continuously from the locally melted surface so as to provide two surfaces in the body having different coefficients of thermal expansion.

主权项

1. A method of producing a body comprising at least two different components having tunable properties via ultra-high beam processing, comprising:
providing a superconducting linear electron accelerator produced electron beam, predetermining processing time and electron beam parameters, scanning the electron beam across a surface of one of the components made of a metal or a metal alloy using the predetermined processing time and parameters to locally melt the surface and a subsurface beneath the surface such that a rate at which energy is deposited by the scanned electron beam at the surface exceeds a rate of conduction away therefrom to allow the one component to remain below its melting point at a predetermined depth from the surface, and incorporating particles comprising another of the components into the locally melted surface and subsurface of the one of the components to form the body as a metal composite body such that a predetermined volumetric concentration of the incorporated particles varies continuously from the locally melted surface and subsurface so that the body has a variable through-thickness coefficient of thermal expansion which thereby provides two outer surfaces having different coefficients of thermal expansion.