PDZ替代锆英粉用做瓷釉乳浊剂的研究

本论文研究在乳浊釉中利用超细ＰＤＺ原料替代超细锆英粉用作乳浊剂的工艺。试验确定了适合乳浊釉的ＰＤＺ用量及比较合理的釉料配方。测试研究了ＰＤＺ乳浊釉和锆英石乳浊釉的白度、耐磨性、热稳定性等性能。采用Ｘ－射线衍射和扫描电镜两种手段研究了ＰＤＺ乳浊釉和锆英粉乳浊釉的物相组成和显微结构,并对ＰＤＺ乳浊机理进行了理论分析。结果表明,两者乳浊机理基本相同,但两者析出的锆英石晶相的形貌和分布状态存在差别。     

Cd(S_xSe_(1-x))系列釉呈色机理的研究

本文提出了独特的硫硒化镉系列色釉的制备工艺─—多熔块反应法。即选用适应的化合物作出发原料,分别合成了在其中固定有S、Se、Cd的玻璃熔块,将该三类熔块按不同比例混合,根据坯体性质、烧成温度等不同要求,分别配合不同类型、不同数量的基础熔块,制成了烧成温度在950─—1120℃范围,颜色从黄到红乃至栗色的系列釉料。并采用X－ray衍射分析、透射电镜等手段,研究讨论了系列釉的呈色是由于在釉烧过程中,S、Se、Cd从各自的色源质熔块组成内扩散释放出来,在釉层中析出了Cd（SxSe1-x）微晶所致。     

薄形陶瓷板釉泡、孔洞影响因素探讨

薄形陶瓷板作为一种可持续发展陶瓷产品越来越受到人们的欢迎.但是,在生产薄形陶瓷板过程中,非常容易产生釉泡、孔洞等缺陷.笔者从各个工序探讨了产生釉泡、孔洞缺陷的影响因素.通过研究发现,产生这些缺陷的主要原因是因为坯体里的硫酸盐和碳酸盐在分解过程中排气不充分导致.最后结果表明:通过在坯体配方中降低高CaO含量的原材料比例原...     

The relationship between the use of Zijin clay and glaze crackles for Chinese celadon with black body

The celadon with black body is a famous type of ceramic product in ancient China due to its appearance features, black body and crazing glaze, different from regular. For this type of ware, the crazing glaze is a kind of artificial decoration, not production defect. How the glaze crackles were made by ancient potter has always attracted many people's attention. And it has been studied mainly based on chemical composition. In this paper, we aim to provide our discussion and explanation for its sophisticated combinations of crazing glaze and black body. Based on analysis of ancient and modern celadon products, we thought that the difference in quartz content of the fired body is the reason why the celadon with black body is more likely to have crazing glaze than regular. And, the potter could control the expansion coefficient of the body by using Zijin clay with low quartz content as raw material.     

降低热喷涂涂层孔隙率的方法

热喷涂的工作原理决定了其涂层孔隙是不可避免的。当涂层用于防腐蚀时,腐蚀介质会通过孔隙到达基体表面,从而造成防护失败。因此,封孔处理是提高涂层防腐蚀性能的重要途径。本文总结了涂层封孔处理的方法,对未来涂层封孔技术进行了展望,并提出一种新的涂层封孔剂——釉。     

硫硒化镉陶瓷釉初探

本文着重探讨了硫硒化镉陶瓷釉的基础配方,通过“基础釉组成保护法”,使着色剂（Ｓｅ,ＣｄＳ）挥发减少到最低程度,而获得满意的红色。通过实验获得了ＳｉＯ２－Ａｌ２Ｏ３－Ｎａ２Ｏ－ＰｂＯ系统的红色陶瓷釉的配方,并对其组分和工艺进行了讨论。认为制造硒镉红陶瓷釉是能实现的,同时使釉料呈色鲜艳、稳定,最高烧成温度可达１１００℃,釉面质量与其它性能都达到了预期的效果。     

金属光泽釉内墙砖烧成制度优化

采用钾长石、玻璃粉、石灰石、石英、氧化锌、硼酸为主要原料,添加氧化铜、二氧化锰、五氧化二钒等金属氧化物析晶剂,制备具有金属光泽的内墙砖,考察了烧成制度对金属光泽釉的影响,并进行了优化。采用XRD,SEM等检测设备对金属光泽釉的物相组成和晶体形貌进行了表征,揭示了性能与结构之间的关系。     

亚光碎纹釉的研制

本文介绍了亚光碎纹釉的研制情况,根据釉的膨胀系数大于坯的膨胀系数,且Δα值>0.4×10-6以上能形成裂纹的原则,通过合理控制釉的化学成分,确定Si/Al比例,提高其膨胀系数,制得了一种外观视觉效果良好,网状裂纹均匀分布的亚光碎纹釉。     

On-site pXRF analysis of glaze composition and colouring agents of “Iznik” tiles at Edirne mosques (15th and 16th-centuries)

The production of the tiles in Ottoman Empire had begun as a continued workshop of Seldjuk ceramic art, and after this initial phase, its own technology was introduced into Ottoman art by local craftsmen. Iznik tiles are among the most appreciated pottery masterpieces, and wall decoration in tiles is a significant asset of Unesco World Heritage Edirne mosques. Rare glaze composition studies have been made, which justify the need for more comprehensive studies. We present here the first on-site elemental analyses performed with portable XRF instrument in four of the most representative mosques in Edirne (?ah Melek Pa?a (1429), Muradiye (1435–1436), Üç ?erefeli (1410–1447) and Selimiye (1569–1575)). A handheld 785?nm Raman spectrometer was used as a complementary technique to identify some pigments. About forty tiles have been analysed in this research. Additionally, two tiles from Ye?ilce Mosque (1442, Edirne) have been analysed at the Selimiye Foundation Museum. The weight percent of the elements measured with pXRF are normalized by Si amount in order to eliminate the variation due to the positioning shifts. Different glazing technologies are evidenced (Master of Tabriz Sn-free glazed tiles, Hünkar Mahfili Sn-poor glazed tiles, and Sn-(Bi) rich ones). At least three different cobalt ores have been used (with characteristic Cu, Ni, Mn and Bi content) in blue decors. Use of a chromium-based ore is demonstrated for some Selimiye Hünkar Mahfili tiles. The link between ?ah Melek Pa?a and polychrome (mihrab) Muradiye tiles and Seldjuk production is established. On the contrary, the technology of Üç ?erefeli and blue-and-white Muradiye tiles is unique and appears a precursor of 16th-century Iznik production. Bismuth, Sn/Pb, Co/Mn, and Co/Ni ratio appears very useful to compare the different glazes and to identify mining sources of cobalt.     

Microstructure and mechanical properties of diopside and anorthite glazes with high abrasion resistance

The paper presents the results of research on the influence of the chemical composition of frits on the microstructure and mechanical properties of ceramic glazes. Glaze sets are designed based on frits of different chemical composition and increasing B₂O₃ content. Thermal DSC analysis showed a high tendency to crystallize the designed glazes, and in the obtained glazes the main crystalline phases were diopside or anorthite, which was also confirmed by XRD analysis and SEM microscopic observations. In glazes not containing B₂O₃ and at a SiO₂/Al₂O₃ molar ratio in the 5.3–5.6 range, mainly diopside crystallized, while a decrease in the SiO₂/Al₂O₃ molar ratio to a value below 4.9 and an increase in B₂O₃ content contributed to an increase in the anorthite crystal phase content. The obtained glazes were characterized by a surface roughness of Ra in the range of 0.2–1.1 μm and a high abrasion resistance measured with a mass loss of less than 50 mg after 6000 abrasion cycles in accordance with the EN ISO 10545-7 standard. Such high abrasion resistance was achieved thanks to the high hardness of the glazes in the range of 6.4–8.0 GPa, which was confirmed by the Vickers hardness measurement.