Patent ID: 8859054
Filing Date: 2014-10-14
Classification: B23K,C23C

Abstract:
1. A method for depositing materials in a substrate, comprising: disposing a first portion of a substrate in a vertically downward-facing direction; directing an energy beam from below the first portion upward toward the first portion; forming a melt pool in the substrate using the directed energy beam, wherein the melt pool is formed facing in a vertically downward direction in the first portion; and directing a flow of particles from below the first portion upward toward the first portion, wherein at least some of the particles are buoyant in the melt pool to move upward through the melt pool toward the substrate; wherein the particles are not the same material as the substrate; and solidifying the melt pool to form a coating on the substrate; wherein the solidifying includes forming pores defined by the particles in the coating of the substrate.