Premium
The thermochromic properties of the ceramic colour standards
Author(s) -
Compton J. Anne
Publication year - 1984
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.5080090104
Subject(s) - thermochromism , photochromism , ceramic , materials science , optics , irradiation , optoelectronics , absorptance , radiation , reflectivity , composite material , chemistry , nanotechnology , physics , organic chemistry , nuclear physics
Abstract Thermochromism is a reversible change oftransmittance, reflectance, or absorptance induced by a change of temperature. Photochromism is the corresponding effect induced by optical radiation. These effects can occur in the use of reflectance standards, as they may undergo a considerable temperature rise when subjected to the polychromatic irradiation used by many measuring instruments. An investigation of any thermochromic (and photochromic) properties of the twelve Ceramic Colour Standards is described. It is shown that thermochromic effects are only significant to a very small extent in about half of the standards and not at all in the remainder, while there is no evidence of any photochromism.