Preparation method of metal powder material
AssigneeLi Liu
InventorLi Liu
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Abstract
The present disclosure provides a preparation method of a metal powder material. An alloy sheet composed of a matrix phase and a dispersive phase with different chemical reactivities is prepared by the rapid solidification technique of alloy melt. Metal powder is prepared by the reaction of the alloy sheet and an acid solution. Please refer to the description for the detailed preparation method. This method is simple in operation, can be used to prepare many kinds of metal powder materials of different shapes and at the nanometer scale, the submicron scale and the micron scale, and has a good application prospect in the fields of catalysis, powder metallurgy and 3D printing.
Claims20
A preparation method of a metal powder material, comprising the following steps:
- providing an alloy sheet, wherein the composition of the alloy sheet is MaNb, M is Cu, N is selected from the group consisting of W, Cr, Mo, V and mixtures thereof, and a and b represent the atomic percentage content of the corresponding element, and 0.1%≤b≤45%, a+b=100%;
- the microstructure of the alloy sheet is composed of a matrix phase with component M and a dispersive particle phase with component N;
- and
- making the alloy sheet react with an acid solution, so that the matrix phase with component M reacts with H+ of the acid solution to become metal ions to enter the solution, and the dispersive particle phase with component N is separated, and the metal N powder material is obtained.
The preparation method of the metal powder material according to 2, wherein, after the step of making the alloy sheet react with the acid solution, the following steps are performed:
- the obtained metal N powder material is screened, and then is subjected to plasma spheroidization treatment, and finally the metal N powder material with different particle sizes and of the spherical shape is obtained, wherein the metal N powder material comprises a mix of powders with more than one particle size.
The preparation method of the metal powder material according to 5, wherein, after the step of making the alloy sheet react with the acid solution, the following steps are performed:
- the obtained metal N powder material is screened, and then is subjected to plasma spheroidization treatment, and finally the metal N powder material with different particle sizes and of the spherical shape is obtained, wherein the metal N powder material comprises a mix of powders with more than one particle size.
The preparation method of the metal powder material according to 8, wherein, after the step of making the alloy sheet react with the acid solution, the following steps are performed:
- the obtained metal N powder material is screened, and then is subjected to plasma spheroidization treatment, and finally the metal N powder material with different particle sizes and of the spherical shape is obtained, wherein the metal N powder material comprises a mix of powders with more than one particle size.
The preparation method of the metal powder material according to 12, wherein, after the step of making the alloy sheet react with the acid solution, the following steps are performed:
- the obtained metal N powder material is screened, and then is subjected to plasma spheroidization treatment, and finally the metal N powder material with different particle sizes and of the spherical shape is obtained, wherein the metal N powder material comprises a mix of powders with more than one particle size.
The preparation method of the metal powder material according to 11, wherein, after the step of making the alloy sheet react with the acid solution, the following steps are performed:
- the obtained metal N powder material is screened, and then is subjected to plasma spheroidization treatment, and finally the metal N powder material with different particle sizes and of the spherical shape is obtained, wherein the metal N powder material comprises a mix of powders with more than one particle size.
The preparation method of the metal powder material according to 17, wherein, after the step of making the alloy sheet react with the acid solution, the following steps are performed:
- the obtained metal N powder material is screened, and then is subjected to plasma spheroidization treatment, and finally the metal N powder material with different particle sizes and of the spherical shape is obtained, wherein the metal N powder material comprises a mix of powders with more than one particle size.
Dependencies are inferred from the claim text.