Insolubility of Mg in β‐Si ₃ N ₄ in the System Al‐Mg‐Si‐O‐N

Abstract

Solid‐solution formation of magnesium in β‐Si 3 N 4 containing AlN:Al 2 O 3 was investigated. Samples were hot‐pressed at 1700°C. Under the condition studied, very little or no magnesium entered the β‐Si 3 N 4 lattice.