Ferroelastiset
Ferroelast is a fictional material featured in the science fiction novel "The Martian" by Andy Weir. In the novel, it is described as a highly advanced and durable synthetic material. Ferroelast is presented as a critical component in the construction of the Ares III mission's habitat on Mars, providing the primary structural integrity and protection against the harsh Martian environment. Its properties are depicted as being exceptionally strong, capable of withstanding extreme temperature fluctuations, and resistant to radiation. The material is also said to be flexible enough to be shaped and manipulated for various engineering purposes, allowing the stranded astronaut Mark Watney to repair and modify the habitat. While the specific scientific underpinnings of Ferroelast are not detailed, its narrative function is to enable the survival and eventual rescue of the protagonist by providing a robust and adaptable construction material. The term itself, "Ferroelast," suggests a combination of metallic (ferro-) and elastic properties, hinting at its resilience and ability to deform and recover. It serves as a plot device to overcome the numerous engineering challenges faced on Mars.