Disclosed are a method for preparing an aluminum-containing alloy powder, the use thereof and an alloy strip. The preparation method involves: by utilizing the characteristic of an initial alloy solidification structure including a matrix phase and a dispersed particle phase, removing the matrix phase by means of a reaction involving an acid solution, so as to separate out the dispersed particle phase and obtain the aluminum-containing alloy powder. The preparation method process is simple, can prepare nanometer-, submicron-, micron- and millimeter-scale aluminum-containing alloy powders with different morphologies, and can be used in the fields of optoelectronic devices, wave-absorbing materials, catalysts, 3D metal printing, metal injection molding, anticorrosive coatings, etc.

Method for preparing aluminum-containing alloy powder, use thereof and alloy strip

The invention relates to nano-porous metal powder and a preparation method thereof. The preparation method comprises the following steps of: firstly, selecting specific components to melt into a melt,and controlling a first solidification rate to enable a first alloy obtained by solidification to have a hexagonal primary crystal phase and a first matrix phase; in order to facilitate separation ofthe primary crystal phase, reheating the first alloy, and controlling the heating temperature and a second solidification rate to enable the first matrix phase to be remelted and solidified into an amorphous second matrix phase so as to obtain a second alloy; and finally, preparing the nano-porous metal powder with flaky hexagonal particles by adopting an dealloying method, wherein the nano-porous metal powder is of a nano-porous structure. The preparation method is simple in process, and the obtained nano-porous metal powder is large in specific surface area, has excellent properties such asgood particle fluidity, high thermal conductivity, high conductivity and corrosion resistance, and has important application in the fields of catalysis, new energy, photoelectricity and the like.

Nano-porous metal powder and preparation method thereof

The invention relates to a preparation method of nano silver powder. The preparation method adopts a dealloying method and comprises the following steps that, an initial alloy containing a target metal silver particle is prepared firstly, and then the initial alloy is reacted with hydrofluoric acid solution to prepare the nano silver powder. By means of the preparation method, the preparation process of the nano silver powder is greatly simplified through further optimization of preparation conditions such as the initial alloy and corrosive solution, so that the preparation method of the nanosilver powder is simpler and more suitable for industrial production.

Preparation method of nano silver powder

The invention relates to an AgCl/Ag composite and a preparation method thereof. The preparation method comprises the steps that an amorphous initial alloy is firstly provided, then the initial alloy and a hydrochloric acid solution react under the ultrasonic assistance function, the initial alloy is dissolved in the hydrochloric acid, and therefore AgCl nucleation, growth and precipitation are stopped during ultrasonic treatment, an AgCl material similar to flower balls is obtained, part of the AgCl is decomposed to obtain nanometer Ag particles through further irradiation treatment, and the AgCl/Ag composite similar to ball flowers is obtained. The process of the preparation method is simple, the obtained AgCl/Ag composite has the high specific area, the effects of specific area and sterilization are excellent, and good application prospects are achieved in the fields of sterilization, photocatalysis and the like.

AgCl/Ag composite and preparation method thereof

The invention relates to a preparation method of a nano-porous powder material. The method comprises the following steps: firstly, removing A in an AxTy alloy through an ultrasonic-assisted dealloyingmethod to prepare nano-porous T coarse powder, then carrying out an M-reaction process on the nano-porous T coarse powder and an M-containing gas reactant to obtain nano-porous T-M coarse powder, andfinally, further crushing the nano-porous T-M coarse powder through a jet mill to obtain nano-porous T-M fine powder. The method can realize low cost and large-scale production of the nano-porous T-Mfine powder, and has a wide application prospect.

Zhao Yuanyun

Papers

Nano-porous metal powder and preparation method thereof

Preparation method of nano silver powder

AgCl/Ag composite and preparation method thereof

Preparation method of nano-porous powder material