公开(公告)号：US11938536B2

公开(公告)日：2024-03-26

申请号：US17706259

申请日：2022-03-28

申请人： The Board of Trustees of the Leland Stanford Junior University

发明人： Ottman A. Tertuliano ,  Philip J. DePond ,  Andrew Curtis Lee ,  Xun Gu ,  Wei Cai ,  Adrian J. Lew

IPC分类号： B22F1/07 ,  B22F1/05 ,  B22F1/065 ,  B22F1/145 ,  B33Y70/00 ,  C23F1/02 ,  C23F1/34 ,  B22F9/16

CPC分类号： B22F1/07 ,  B22F1/05 ,  B22F1/065 ,  B22F1/145 ,  B33Y70/00 ,  C23F1/02 ,  C23F1/34 ,  B22F9/16 ,  B22F2301/10 ,  B22F2304/10

摘要： Metal powder particles for use in additive manufacturing are made by removing material from the surface of the particles using wet chemical etching to create a nanoscale texturing of the surface, increasing absorptivity by the metal powder particles of incident laser light and maintaining flowability. The nanoscale texturing has sub-wavelength features at laser wavelengths in the range 800-1100 nm. The particles are substantially spherical and have mean diameters in the range 10-70 μm.

公开(公告)号：US20220305553A1

公开(公告)日：2022-09-29

申请号：US17706259

申请日：2022-03-28

申请人： The Board of Trustees of the Leland Stanford Junior University

发明人： Ottman A. Tertuliano ,  Philip J. DePond ,  Andrew Curtis Lee ,  Xun Gu ,  Wei Cai ,  Adrian J. Lew

IPC分类号： B22F1/07 ,  B22F1/05 ,  B22F1/145 ,  B22F1/065 ,  B33Y70/00

摘要： Metal powder particles for use in additive manufacturing are made by removing material from the surface of the particles using wet chemical etching to create a nanoscale texturing of the surface, increasing absorptivity by the metal powder particles of incident laser light and maintaining flowability. The nanoscale texturing has sub-wavelength features at laser wavelengths in the range 800-1100 nm. The particles are substantially spherical and have mean diameters in the range 10-70 μm.