Bi－V－Cr系复合氧化物的制法及其热色特性

THE MANUFACTURING METHOD AND THERMOCHROMATIC CHARACTERISTIC OF Bi-V-Cr OXIDE COMPOUND

报道了新型可逆热色材料Ｂｉ－Ｖ－Ｃｒ复合氧化物的制取方法及热致变色特性实验表明：ＢｉＶＯ４可在黄（室温）－橙（１２℃）－红（２００℃）色系可逆变色；ＢｉＣｒＯ３可在绿（室温）－黄（１４０℃）色系可逆变色；

The manufacturing method and thermochromatic characteristic of new reversible thermochromatic material Bi-V-Cr oxide compound are presented. The experiment shows that the colour of Bi-V oxide compound BiVO4 can chang among yellow (ambient temperature)-orange (120℃)-red (200℃)reversibly, the colour of Bi-Cr oxide compound BiCro3 can chang between green(ambient temperature)yellow (140℃) reversibly, the colour of Bi-V-Cr oxide compound can chang among greenish yellow(ambient temperature)-yellowish brown (120℃)-deep brown (180℃)reversibly.