公开(公告)号：US20180272428A1

公开(公告)日：2018-09-27

申请号：US15781670

申请日：2016-12-06

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： 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分类号： B22F3/11

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

摘要： 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.

公开(公告)号：US20200299815A1

公开(公告)日：2020-09-24

申请号：US16060290

申请日：2016-11-29

申请人： 3M INNOVATIVE PROPERTIES COMPANY

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

IPC分类号： C22C32/00 ,  C22C21/00 ,  B22F3/11 ,  B22F7/00 ,  C22C47/14 ,  C22C49/06 ,  C22C49/14

摘要： A metal matrix composite is provided, including a metal, inorganic particles, and discontinuous fibers. The inorganic particles and the discontinuous fibers are dispersed in the metal. The metal includes aluminum, magnesium, or alloys thereof. The inorganic particles have an envelope density that is at least 30% less than a density of the metal. The metal matrix composite has a lower envelope density than the matrix metal while retaining a substantial amount of the mechanical properties of the metal.