尖晶石型无钴黑色陶瓷颜料的研究进展

黑色陶瓷颜料目前被广泛应用于陶瓷装饰领域,其传统制备工艺需加入氧化钴,但氧化钴的高价限制了黑色陶瓷颜料的发展,因此开发无钴黑色陶瓷颜料成为陶瓷颜料研究领域的热点之一,而尖晶石型无钴黑色陶瓷颜料因其出色的耐高温性、气氛适应性和化学稳定性受到众多研究者的青睐。本文基于尖晶石型无钴黑色陶瓷颜料的相关研究进展,围绕其呈色机理、制备原料种类和制备工艺等方面进行了详细的阐述与分析。目前,制备该类陶瓷颜料的原料主要分为化工原料、矿物原料和工业固废,制备工艺则主要包括传统高温固相法、微波焙烧法、化学沉淀法、溶胶-凝胶法、微乳液法、溶液燃烧法等,所制备颜料的呈色性能主要受原料组成中过渡金属元素之间摩尔比、焙烧温度和保温时间的影响。相较而言,采用微波焙烧工业固废制备该类陶瓷颜料具有良好的应用前景,但制备过程中尖晶石形成规律和演变机理以及工业固废所引入的杂质组分对颜料性能的影响还有待进一步研究。

Research Progress of Spinel-Type Cobalt-Free Black Ceramic Pigments

Black ceramic pigments are currently widely used in the field of ceramic decoration. The traditional processes to produce black ceramic pigments require the addition of cobalt oxide, but the high price of cobalt oxide limits the development of black ceramic pigments. Therefore, the development of cobalt-free black ceramic pigments has become one of the hot spots in the research field of ceramic pigments and the spinel-type cobalt-free black ceramic pigments are favored by many researchers for their excellent high-temperature resistance, atmospheric adaptability and chemical stability. Based on the research progress of spinel-type cobalt-free black ceramic pigments, coloration mechanism, raw material types and preparation technologies of the above ceramic pigments were described and analyzed detailedly in this paper. At present, the raw materials for preparing the spinel-type cobalt-free black ceramic pigments can be mainly divided into chemical raw materials, mineral raw materials and industrial solid wastes. The preparation technologies mainly include the traditional high-temperature solid-state method, the microwave roasting method, the chemical precipitation method, the sol-gel method, the microemulsion method, the solution combustion method, etc. The coloring properties of prepared pigments are mainly affected by the mole ratio among transition metal elements in raw materials, the roasting temperature and the holding time. In comparison, microwave roasting of industrial solid wastes to prepare the above ceramic pigments has a good application prospect, but the formation and evolution mechanism of spinel in the preparation process and the influence of impurity components introduced by industrial solid wastes on the properties of pigments still need to be further studied.