Abstract

The interdiffusion in KCl-KBr single-crystal diffusion pairs, which form continuous solid solutions, is examined in microwave heating (24 GHz). The results are compared with data obtained in traditional heating. Electron microprobe analysis is used to examine the composition of the diffusion zone and microscopic analysis is used to examine its microstructure. It is shown that ion interdiffusion occurs faster in microwave heating than in traditional heating. The ascending diffusion of Cl and Br ions is revealed in microwave heating. The microstructure of the diffusion zone between KCl and KBr single crystals is highly heterogeneous after microwave heating and sharply differs from that after traditional heating.