Habits of Fine Metal Crystallites Prepared by Gas-evaporation Method IV : Effects of Impurity in Argon Gas on Morphdogy of Magnesium Fine particles

Abstract

Morphology of magnesium particles prepared by evaporation method in argon gas of different purities was studied by electron microscope. As the purity of argon gas became higher, the ratio c/a was increased as well as the value of a, where a and c are respectively the side length and the thickness of hexagonal plates. It was confirmed from the morphology of particles that the purity of argon gas was improved by the gettering action of magnesium particles.