Lithium iodate (LiIO₃) is a negative uniaxial crystal for nonlinear, acousto-optical and piezoelectric applications. It has been utilized for 347 nm ruby lasers.

Properties

Mohs hardness The Mohs scale of mineral hardness () is a qualitative ordinal scale, from 1 to 10, characterizing scratch resistance of various minerals through the ability of harder material to scratch softer material. The scale was introduced in 1812 by t ...

of lithium iodate is 3.5–4. Its linear

thermal expansion Thermal expansion is the tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including phase transitions. Temperature is a monotonic function of the average molecular kinetic ...

coefficient at is 2.8·10⁻⁵/°C (a-axis) and 4.8·10⁻⁵/°C (c-axis). Its transition to β-form begin at and it is irreversible.

References

Lithium compounds Iodates Nonlinear optical materials {{Inorganic-compound-stub