【作者】 夏银凤；

【导师】 黄朝晖；

【作者基本信息】 中国地质大学（北京） ， 材料学， 2008， 硕士

【摘要】 结晶釉是一种装饰效果明显的艺术釉,现有的结晶釉主要是硅锌矿系结晶釉,体系较为单一,缺少其晶体生长的理论分析。本文研究了添加TiO₂加入对硅锌矿系结晶釉中对析出晶体物相的影响,探讨了TiO₂加入量和工艺条件对制备的结晶釉晶花形貌的影响规律,研究了用煤矸石替代粘土制备结晶釉艺术瓷坯体的可行性。研究结果表明,在1250℃熔融1130℃析晶工艺条件下可成功制备出有较强美感的金红石结晶釉,结晶釉中晶体能自发生长且能铺满整个釉面,结晶釉中析出晶体的数量随析晶温度的升高而增大。XRD和光学显微分析结果表明析出的晶体为长柱状的金红石,优化的结晶釉的最佳原料配方为14.5%TiO₂、10.1%ZnO、11.6%焦宝石、63.5%玻璃粉和0.3%CuO。结晶釉中引入稀土氧化物作为着色剂,研究结果表明:CeO₂能使结晶釉高温下呈现稳定的黄色,而Er2O3能使结晶釉高温下呈现稳定的红色。添加稀土氧化物使结晶釉中析出的柱状晶体直径变细,但没有改变析出晶体的晶型。采用煤矸石代替粘土制备结晶釉坯体的研究表明,煤矸石替代粘土对坯体的吸水率、气孔率、抗折强度、抗压强度和坯釉结合的影响较小。当煤矸石替代量达46%时,结晶釉坯体的气孔率、抗折强度、抗压强度和坯釉结合等性能几乎没有发生改变,以煤矸石代替粘土作为结晶釉艺术瓷坯体的原料是完全可行的。本课题的研究成果不仅有重要的理论意义还有更重要的应用前景。更多还原

【Abstract】 Crystalline glaze is a kind of art glaze with excellent decorative performance. Now, the system of willemite crystalline glaze as the most common crystalline glaze is single. Little theoretical analysis on the crystal growth has been reported. In this paper, TiO₂ was introduced into willemite crystalline glaze. The influence of TiO₂ addition and processing conditions on the phase constitution and patterns of crystal flowers of the crystalline glaze was studied. Also, the feasibility of using coal gangue as a substitute for clay to prepare crystalline glaze was investigated.The results showed that a rutile crystalline glaze with better aesthetic appearance was prepared under the conditions of melting temperature of 1250℃and crystallization temperature of 1130℃. The crystals in the crystalline glaze could self-grow and overspread the whole surface of the glaze. The amount of the crystals increased with the increase of the crystallization temperatures. XRD and optical microscope results indicated that the precipitated crystals were long columnar rutile crystals. The optimizing raw materials formula for the crystalline glaze was as follows: 14.5%TiO₂, 10.1%ZnO, 11.6%flint clay, 63.5%glass frit and 0.3%CuO. This paper also showed that.Rare earth oxides were also introduced into the crystalline gaze as colorant. The results showed that CeO₂ could make the crystalline glaze present steady yellowness and Er2O3 could make crystalline glaze present steady redness at high temperature. The addition of rare earth oxides made the long columnar crystals in the crystalline glaze became thinne. The crystal structure did not changed.Using coal gangue as a substitute for clay to prepare crystalline glaze body showed has little effect on the hygroscopic coefficient, the porosity, volume concentration, flexural strength and the bonding between the crystalline glaze and the body. When the rate of the coal gangue reached 46%, the performances mentioned above had little changes. The results indicated that it is completely feasible to use coal gangue as a substitute for clay to prepare crystalline glaze ceramic body.更多还原