| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of detecting and quantifying AlN in a small amount, for example, 1% by mass or less, which is contained in Al or an Al alloy.SOLUTION: Provided is a quantification method of AlN contained in Al or an Al alloy, comprising the steps of: weighing an Al metal material or an Al alloy material containing AlN into a dissolution vessel, then adding an acid to dissolve and remove a metal component, and collecting a residual with a collection material; incinerating the collection material that has collected the residual; adding a flux to the residual obtained through the incineration of the collection material, and heating the flux-added residual to give a molten salt; dissolving the molten salt with an acidic solution to give an acidic solution of the molten salt; and measuring a concentration of Al contained in the acidic solution of the molten salt, and calculating a content of AlN in the Al metal material or the Al alloy material containing AlN.SELECTED DRAWING: None |
