公开(公告)号：US20180272428A1

公开(公告)日：2018-09-27

申请号：US15781670

申请日：2016-12-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Elizaveta Y. Plotnikov ,  Douglas E. Johnson ,  Colin McCullough ,  Jason D. Anderson ,  Gang Qi ,  Yong K. Wu ,  Sandeep K. Singh ,  Gareth A. Hughes ,  David M. Wilson ,  Anatoly Z. Rosenflanz ,  Douglas P. Goetz ,  Jordan A. Campbell ,  Fabian Stolzenburg ,  Jean A. Tangeman

IPC: B22F3/11

CPC classification number: B22F3/1118 ,  B22F3/11 ,  B22F3/1112 ,  B22F2003/1106 ,  B22F2301/052 ,  B22F2301/058 ,  C22C32/00 ,  C22C32/0089 ,  C22C47/14 ,  C22C49/04 ,  C22C49/06 ,  C22C49/14

Abstract: A method of making a porous metal matrix composite is provided. The method includes mixing a metal powder, a plurality of inorganic particles, and a plurality of discontinuous fibers to form a mixture, wherein the metal powder comprises aluminum, magnesium, an aluminum alloy, or a magnesium alloy. The method further includes sintering the mixture to form the porous metal matrix composite. Typically, the inorganic particles comprise porous particles or ceramic bubbles or glass bubbles, and the inorganic particles and the discontinuous fibers are dispersed in the metal. The metal matrix composite has a lower density than the metal and an acceptable yield strength.