| abstract |
The invention relates to the field of metal materials, and discloses a preparation method of two-dimensional flake-shaped low-oxygen metal chromium powder. A copper-chromium blank wrapped with a copper matrix; step 2: rolling-annealing the copper-chromium blank for multiple times to obtain a copper-chromium pseudo-alloy sheet containing two-dimensional flake chromium; step 3: cutting the sheet into The small pieces are placed in an acid solution, and after the copper is dissolved, filtered and cleaned to obtain flake metal chromium powder; Step 4: heating and reducing flake metal chromium powder to obtain two-dimensional flake low oxygen metal chromium powder. In the present invention, a copper-chromium pseudoalloy containing two-dimensional flake chromium is prepared by mixing, sintering and repeated rolling-annealing treatment, and then the copper is dissolved with acid, and finally the two-dimensional flake low-oxygen metal is successfully obtained through reduction treatment. Chrome powder. |