Application of goniospectrophotometry to the characterisation of special decorative effects

作者：Mestre S^*; Moreno A; Agut P; Bordes M C; Perez J J; Reverter S; Navarro E

来源：Boletin de la Sociedad Espanola de Ceramica y Vidrio, 2010, 49(4): 311-318.

• metallised glazes
• goniospectrophotometry
• index

The evaluation of the colour of so-called 'metallised' glazes is an important problem, especially since there is no clear definition for this type of material. The study shows that a spectrophotometer is not sufficient for evaluating the colour of these glazes, whereas a goniospectrophotometer with four angles of viewing enables a set of data to be obtained that more closely describe glaze appearance. However, the description of the colour component of glaze appearance using twelve chromatic coordinates is difficult to handle. For that reason, an index is proposed, similar to the whiteness or yellowness indices, for the evaluation of 'metallised' appearance. This index is calculated from the goniospectrophotometer data, and has allowed 'metallised' glazes to be differentiated from 'non-metallised' glazes, in the set of samples used in this study.

• 出版日期2010-8