👉 The term "interfilamentary" refers to a process or phenomenon in which two or more materials, typically metals, are separated from each other by an interface between them. This separation can occur due to various factors such as thermal expansion, chemical reactions, or mechanical stress. The interfilamentary process is often observed in the formation of alloys and composites, where the presence of interstitial elements within the material helps to improve its physical properties. Interfilamentary processes are a critical aspect