YAl

YAl is an intermetallic compound in the yttrium-aluminum system, representing a class of rare-earth metal intermetallics that combine ceramic-like stiffness with metallic character. This material is primarily of research and specialized industrial interest, used in high-temperature structural applications and as a constituent phase in composite systems where thermal stability and strength retention at elevated temperatures are critical. YAl and related yttrium-aluminum phases are notable for their potential in aerospace and power-generation environments where conventional aluminum alloys fail; engineers consider them when designing components that must maintain mechanical integrity in oxidizing atmospheres above typical aluminum service limits.