Lämpöisostaattiset
Lämpöisostaattiset, often abbreviated as LSI, refers to a family of materials or devices that exhibit unique thermal expansion properties. These materials are characterized by their ability to maintain a near-constant volume or dimension across a wide range of temperatures, or at least display minimal volumetric or linear expansion. This phenomenon is achieved through a careful combination of constituent materials with differing coefficients of thermal expansion. When these materials are combined in specific proportions and configurations, their individual expansions and contractions effectively cancel each other out, resulting in a net negligible change.
The principle behind LSI materials is to utilize the opposing thermal expansion behaviors of different components.
Applications for LSI materials are found in fields where precise dimensional stability is critical, particularly under