高光泽日用瓷釉的研制

对日用细瓷大件扁平产品釉面光泽度差的问题进行了全面分析,研究,成功研制了以瓷粉,石灰石,钠长石为要原料,在１２５０－１３３０℃烧成的高光泽的釉配方,并探讨了主要釉用料对釉面高光泽度的影响。     

高质成套出口日用细瓷釉的研制

针对大伴扁平产品釉面质量差的问题,重新研制了釉料配方,重点从降低釉料高温粘度,提高釉面始熔温度,拓宽釉料烧成温度范围着手,经过多次试验,成功地研制出了烧成温度在1260-1300℃和与生产坯结合良好的高质成套出口日用细瓷釉配方,解决了扁平产品釉面质量问题,实现了大件小件同步生产,配套出口。     

高质成套出口日用细瓷釉的研制

ZnO９９．２４％表１釉用原料化学组成１前言我厂是生产出口成套日用陶瓷的企业，往往因出口率低，成本高；产品档次上不去，售价低；收支反差，没有效益，困扰着企业的发展。主要原因是产品釉面质量差，尤其是大件扁平产品釉面问题非常严重，难以成套生产。为此，我们根据所用原料之特点，对适于氧化气氛烧成生料釉的配方组成，生产工艺进行了系统研究，终于试出了比较满意的成套出口日用细瓷釉配方组成，产品釉面平滑光亮，口径为２２８mm以上平盘显见面和非显见面釉面缺陷明显降低，光泽度好。取得了较为成功的效果。２原料高质成套出口…     

利用废瓷片研制无针孔、高光泽度釉

针对我厂产品釉面针孔多、光泽度差的问题，进行了全面的分析、研究，利用废瓷片气体含量少，不含有机物等特点，成功研制出以废瓷片、长石为主，1350～1430℃还原气氛烧成的无针孔、高光泽度的日用陶瓷釉配方，解决了我厂产品釉面针孔多、光泽度差的问题，探讨了主要原料在釉料中的作用及用量范围。     

高石英质高档日用细瓷熔块釉的研制

针对高石英质高档日用细瓷生产中存在的产品釉面质量差的问题，进行了详细分析、研究。成功地研制出高温流动性好、烧成温度范围宽、光泽度高的铅硼熔块釉，使产品釉面质量大幅度提高。本文还探讨了主要工艺对产品釉面质量的影响。     

高石英质高档日用细瓷熔块釉的研制

针对高石英质高档日用细瓷生产中存在的产品釉面质量差的问题，进行了详细分析、研究。成功地研制出高温流动性好、烧成温度范围宽、光泽度高的铅硼熔块釉，使产品釉面质量大幅度提高。本文还探讨了主要工艺对产品釉面质量的影响。     

高光泽度日用白釉试制

本文重点从提高日用瓷光泽度的角度出发，利用废瓷粉等原料对釉面光泽度的影响进行了全面的分析，研究，成功地试制出较理想的配方，解决了日用高档瓷针孔多，光泽度的差的问题。     

论日用陶瓷釉面的光泽度

从光学角度分析了影响釉面光泽度的一些基本因素，并根据釉料的工艺性能进行了提高釉面光泽度的探讨，对改善釉面光泽度具有一定的参考价值。     

提高釉面光泽度的点滴体会

釉面光泽度是日用陶瓷的一个重要质量指标。一件产品的光泽度好,是取悦顾客的重要条件。在一定条件下尽可能的提高产品光泽度,是增强产品竞争能力的有力措施。而影响釉面光泽的因素,不外乎是釉的配方和生产工艺。在实际生产中从配方上达到釉的要求是较容易的,而工艺条件却是不易很好控制,这时,工艺条件则是影响产品光泽的关键。     

自制轮釉机投产

邯郸市第二瓷厂使用自制轮釉机解决了大件产品上浓釉、厚釉的问题。已投产的这种轮釉机,具有上釉厚度合适、釉面均匀、无手印和釉绺缺陷,烧成后,釉面平滑、色泽光润、外观质量高的特点。     

SiO2/Al2O3对仿铜金属光泽釉面的性能影响

通过单因素实验探讨了SiO2/Al2O3摩尔比对仿铜金属釉的影响,研制了一种釉面耐磨性较高且呈现仿铜金属效果的生料金属釉。实验结果表明:随着SiO2/Al2O3摩尔比的增加,由于釉中析出的晶体种类和数量不同,从而导致釉面光泽度和色泽不一。当SiO2/Al2O3摩尔比为5.6时,釉中析出了CuMn2O4尖晶石晶体,从而使釉面呈现最佳的仿铜金属光泽,该釉面硬度为894.65Kg/mm2。     

釉面的光泽

本文综述了釉面光泽的产生，影响因素，釉的显微结构与光泽关系及釉光泽的影响，并分析了不同光泽的制品的生产工艺要求。     

Lead Free Cu-Containing Frit for Modern Metallic Glaze

A lead-free frit containing high amount of copper and its glaze conceived for fine porcelain stoneware tiles were investigated. The glazes obtained under industrial firing were studied using X-ray photoelectron spectroscopy, X-ray diffraction, optical and scanning electron microscopy with energy dispersion spectroscopy. The mechanism of the red color formation on the surface was explained. The results indicated that the glaze presents a metallic gloss and iridescent colors on the surface, mainly associated to the formation of CuO crystallites and Cu metallic particles. Moreover, the Cu glaze showed a good chemical durability; this is particularly interesting because commercial Cu frits usually present poor chemical properties.     

气相二氧化硅对瓷器文物修复仿釉涂料性能的影响

瓷器文物修复作色上釉时使用的无色透明有机涂料称为仿釉涂料,目前常用于瓷器文物修复的仿釉涂料普遍存在着耐老化性差和硬度不足这两个问题。为了使仿釉涂料更好地满足修复需求,研究使用气相二氧化硅粉体材料,对陶瓷修复常用的三种仿釉涂料(硝基涂料、丙烯酸光油和水性聚氨酯涂料)进行改性实验,并对改性前后涂膜的硬度、光泽度、接触角、附着力和抗老化性进行了一系列测试。测试结果表明,在加入气相二氧化硅粉末体积比为5%时硝基涂料涂膜铅笔硬度提升到3H,丙烯酸涂料和聚氨酯涂料涂膜铅笔硬度均能提升到H,且三种涂料的涂膜附着力、抗光老化性、环境耐候性和抗污能力有明显提升,但涂膜会损失一定光泽度。     

建筑陶瓷亚光釉的研制

充分利用现有原料试验亚光釉。结果表明,当釉中含有较多CaO、MgO、BaO等氧化物时,经烧成后,釉层中析出钙长石、硅锌矿等微晶,导致釉面光泽减弱,形成亚光釉。     

绣花状黄金光泽结晶釉的研究

本实验主要以玻璃粉、铅硼熔块和氧化锌为原料,同时引入氧化铜、氧化铁和氧化镍等着色剂,按一定配比制备出一系列具有特殊艺术效果的金属光泽结晶釉,其釉面朵状大晶花边缘长有均匀针脚,宛如刺绣。     

EARTHENWARE BODIES AND GLAZES1

Effect of body composition on crazing .—-Six bodies of each of 2 standard clay compositions were prepared with variable clay and flint content and after biscuiting at cone 8 were glazed with 21 earthenware glazes and glost fired at cones 4 and 6. The results indicated that the variability of the silica content of clays would not be great enough to produce crazing in a well-balanced glaze. Effect of proportion and composition of frit .—-A standard whiteware glaze was compounded in 6 different ways and several other glazes in 2 ways. It was found that the method of compounding had no effect on crazing but it affected the gloss and fusibility. Increase in the percentage of material fritted increased the gloss and fusibility. With the same percentage of frit the best glost and highest fusibility were obtained when the flint and part of the clay were included in the frit. Effect of some variations in glaze composition .—-Substitution of CaO by Na₂O, pound for pound, as well as direct addition of Na₂O, increased crazing, improved gloss and increased the fusibility. Direct addition of feldspar increased crazing slightly and diminished gloss, but did not noticeably affect the fusibility. Substitution of 1½1/2 parts of feldspar for one part of flint to maintain the same fusibility increased crazing and diminished gloss. Direct addition of CaO improved gloss, increased fusibility and slightly reduced crazing.     

Study of sauce glazed wares from Yaozhou kilns (Northern Song Dynasty, 960–1127 CE): Probing the morphology and structure of crystals in the glazes

Sauce glaze is one of the main varieties of glazes produced in the Yaozhou kilns during the Song Dynasty. It is famous for its reddish-brown color and high gloss. In this work, the elemental composition, morphology, structure, and light reflectivity of glazes of archeological sherds were systematically studied. A large number of ε-Fe₂O₃ dendritic crystals were observed in the glazes. Alkali etching was implemented to remove the glassy matrix surrounding these crystals to further investigate their microstructure. SEM observations emphasize that they are composed of well-arranged parallel branches separated by about 230 nm, each of which consisting of offset stacks of many small flake-shaped crystals, with the offset ranging from 100 to 110 nm. Based on these results, the origin of the reddish-brown color and high gloss was discussed. In addition, cordierite crystals were observed for the first time in the sauce glaze from Yaozhou kilns.     

一种岩板用的6°丝光高耐磨保护釉

使用常用陶瓷原料钾长石、钠长石、烧滑石、方解石、氧化锌高岭土、氧化铝,并引入少量熔块,制备一种6°丝滑高耐磨仿古保护釉,探究随着BaO含量增多,析出晶体钡冰长石(K_0.6Ba_0.4Al_1.42Si_2.58O_8)增多,对光泽度,摩擦系数,耐磨性能,硬度,防污性能的影响。采用XRD、SEM、耐磨仪、光度计、硬度仪进行测试与表征。结果证明,随着BaO含量增多,釉面光泽度和防污性能下降,但其耐磨度、硬度得到优化;但BaO含量为8.51%时,釉面效果丝滑,光泽度为6°,其耐磨度可达到4级,硬度5级。     

金属/粉煤灰基球形复合定形相变材料釉质涂层制备工艺

以粉煤灰为基体材料,铝粉为相变介质,采用混合烧结法制备直径为15 mm的球形高温复合定形相变材料,利用浸釉法,采用四种烧结制度制备低温黑釉表面涂层,通过渗水率及微观表征评价其防水性能。研究表明,釉层烧结温度及釉浆浓度对釉层性能有显著影响。在釉层烧结温度为950 ℃的条件下,釉浆体积浓度高于90%时,由于坯釉之间膨胀系数差异过大,以及有机分解产物在釉粉末熔融前尚未完全释放而导致釉层龟裂和焦化;当体积浓度大于80%而小于90%时,釉层表面致密度增加,防水性能增强,但存在流釉现象。烧结温度为870 ℃及810 ℃,釉浆体积浓度为85%~95%时,釉面光泽度好且流釉减少,防水性能增强。烧结温度为750 ℃时,因温度过低使釉层间气体无法及时排出导致釉面针孔增多,防水性能下降。对比四种烧结制度下釉层性能,当釉层的最高烧结温度为810 ℃,浆料体积浓度为88%～92%时,涂层致密度高,与球形相变材料表面之间密着性好,防水性能突出,实验重复性良好。