【摘要】 采用甘氨酸燃烧法合成了新型红色YAl1-xCrxO3色料。研究了Cr掺杂量,煅烧温度、保温时间以及矿化剂对YAl1-xCrxO3色料的颜色的影响。结果表明YAl1-xCrxO3色料的色度中的a*值随着Cr掺杂量的增加,煅烧温度的提高和保温时间的延长而增加,色料的红色增加明显。b*值具有与a*值相同的变化规律,其变化的原因是部分Cr3+向Cr4+转变。矿化剂Ca F2具有较好的矿化效果。在1300℃煅烧3 h,能够获得大红色高温YAl0.97Cr0.03O3色料(L*=55.26,a*=26.74,b*=17.44)。更多还原

【Abstract】 A new red YAl1-xCrxO3 pigment was prepared by glycine combustion. The effect of Cr3+ content, calcination temperature, holding time and mineralizer on the chromaticity of YAl1-xCrxO3 pigment were studied. The results show that the a* value of the chromaticity for YAl1-xCrxO3 pigment increases with the increase of Cr3+ content, calcination temperature and holding time. Correspondingly, the pigment changes red. The change of the b* value is similar to that of the a* value, which is the result of the change of Cr3+ to Cr4+. The mineralizing effect of Ca F2 is better than the others. The bright red YAl0.97Cr0.03O3 pigment can be prepared by calcinating at 1300 ℃ for 3 h with L*=55.26, a*=26.74 and b*=17.44.更多还原