Thermochromism is the ability of
substance to change color due to a
change in temperature. A mood ring is
an excellent example of this, but it
has many other uses such as baby
bottles (changes to a different color
when cool enough to drink) and
kettles. Thermochromism is one of
several types of chromism. The two
basic approaches are based on liquid
crystals and leuco dyes. Liquid
crystals are used in precision
applications, as their responses can
be engineered to accurate
temperatures, but their color range is
limited by their principle of
operation. Leuco dyes allow wider
range of colors to be used, but their
response temperatures are more
difficult to set with accuracy.
| The above article is licensed under the GNU Free Documentation License. From Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Thermochromism). Article modified by Apparel Search 9/26/11 |
