抗菌搪瓷及其性能的研究

在搪瓷面釉中引入磷酸银抗菌剂，研制出了抗菌搪瓷。在确定了抗菌搪瓷的底釉和面釉的配方及其烧成温度制度的基础上，主要研究了烧成温度对银挥发量的影响，并对在不同的烧成温度下，Ag^ 在釉层中的径向分布情况进行了分析。结果表明：制备抗菌搪瓷时，在面釉中加入1．5％Ag3PO4、烧成温度为940℃时即获得良好的抗菌效果、釉面质量及抗菌耐久性。     

杀菌搪瓷的研究

研究了在搪瓷釉中引入磷酸银制作杀菌搪瓷的配方、烧成工艺。结果表明,在底釉、面釉中各加入１．５％磷酸银,烧成温度约９４０℃,可制得杀菌效果良好、砜的搪瓷。     

一种制备抗菌卫生陶瓷、建筑陶瓷、日用陶瓷、工业搪瓷、日用搪瓷等制品的方法

本发明公布了一种制备抗菌卫生陶瓷、建筑陶瓷、日用陶瓷、工业搪瓷、日用搪瓷等制品的方法。把无机抗菌剂与普通卫生陶瓷、建筑陶瓷、日用陶瓷、工业搪瓷、日用搪瓷等制品釉分别按照0．2％～10％的比例均匀混合后，采用浸渍、喷涂、丝网印刷、贴花等方法涂布于面砖、卫生洁具等卫生陶瓷、建筑陶瓷、日用陶瓷、工业搪瓷、日用搪瓷等制品产品的表面，通过650～1350℃下烧成得到抗菌卫生陶瓷、建筑陶瓷、日用陶瓷、工业搪瓷、日用搪瓷等制品。该类抗菌制品的6小时灭菌率可达到90％以上。     

静电干粉搪瓷

简述了静电干粉搪瓷的发展过程，静电干粉搪瓷特征和静电喷涂基理，简要介绍了静电干粉搪瓷粉末性能。     

马奔红绿彩

人物简介朱乐耕出生于1952年,江西波阳人。1988年毕业于景德镇陶瓷学院美术系,获硕士学位。现任中国艺术研究院艺术创作中心主任,教授,博士生导师,享受国务院特殊津贴专家,中国陶艺大师,全国政协委员,兼任中国工艺美术学会副理事长。其作品多次参加国内外陶艺展,并有四十余作品获奖。     

Colorimetric Determination of Boron in Porcelain Enamel Frits

A procedure is presented for the modification of the current method of developing the boron-curcumin color complex for a quantitative determination of boron in glass. Instead of evaporating an aliquot of the solution to be tested and baking the residue at 55°± 3°C. for a specified time with curcumin indicator solution, the color complex is developed by dissolving a measured volume of test solution in glacial acetic acid with sulfuric acid.     

搪瓷表面虹彩膜的研究

介绍了以FeCl3和SnCl4虹彩剂为主要成分,采用热喷涂的方法,使虹彩剂在热解后形成金属或金属氧化物薄膜.研究了虹彩剂的优化配比、喷涂工艺、喷涂温度、烧成温度等工艺内容,并讨论了虹彩剂组成、喷涂温度、烧成温度对虹彩效果的影响.耐酸、耐碱失重试验表明,该虹彩膜具有很好的化学稳定性.     

On the Adherence of Porcelain Enamel to Sheet Steel

A study of the reactions at the interface of enamels and steel during firing has been made using a reflecting microscope, an electron microscope, an X-ray spectrometer, and a light spectrograph. Much attention has been given to the tendency of a number of oxides, e.g., cobalt oxide and nickel oxide, to develop a typical roughening of the base metal during firing. This roughening appears to be caused by two successive electrochemical reactions at the interface of the enamel and steel. With the aid of the results, a short explanation is given of the various ways in which enamels may adhere to steel.     

抗菌卫生陶瓷综述及展望

综述了抗菌卫生陶瓷的现状、制备技术及抗菌机理,探讨了抗菌卫生陶瓷生产中存在的问题及发展趋势.     

Galvanic Corrosion Theory for Adherence of Porcelain Enamel Ground Coats to Steel

The galvanic corrosion theory of adherence between ground-coat enamels and steel was investigated as a part of a broad study of the bonding mechanism between ceramics and metals. The theory, which is outlined in this report, is based on the mechanical anchoring of the enamel into the pits formed by the galvanic attack of the enamel on the steel surface. The theory was first examined from the standpoint of the data on adherence obtained in earlier studies at the National Bureau of Standards. In addition, several experiments were performed which demonstrated that galvanic corrosion of the metal base could occur during the short firing times encountered in enamel processing. On the other hand, certain inconsistencies were observed in the data which indicated that the mechanism of galvanic attack followed by mechanical anchoring was not the only important factor affecting the bond strength.     

覆铝钢板搪瓷密着机理研究

通过对覆铝钢板搪瓷界面形貌、结构、元素分布等的分析 ,从化学反应动力学、热力学以及界面能探讨了密着机理 ,本质是界面化学反应产生络合物、氧化物以及合金相 ,并溶解在界面区瓷釉中 ,在界面形成的化学键使瓷层与基体紧密结合在一起     

Microalloy Precipitation at the Glass–Steel Interface Enabling Adherence of Porcelain Enamel

The adherence of vitreous enamels on steel plates is studied clarifying the mechanisms taking place at the interface during firing. Evidence is provided from electron microprobe analysis for an iron alloy precipitation at the interface, which results from oversaturation of ferrous iron in the enamel glass. Subsequent coalescence of the alloy particles is observed but only after their bonding to the base metal adherence after cupping is achieved. The formation of microalloys requires Co²⁺, Ni²⁺, and Cu²⁺ ions in the enamel glass. A selective dissolution of the base metal by the latter cations does not occur.     

Bond Strength of Porcelain Bonded to Enamel and Dentin Surfaces Prepared with Different Surface Treatments

Although acid etching is routinely used to condition tooth surfaces, it increases the caries susceptibility of enamel and enhances enamel demineralization; thus the role of alternative surface treatments such as alumina air abrasion and erbium-doped yttrium aluminium garnet (Er:YAG) laser irradiation for tooth conditioning is controversial. This study was undertaken to compare the effects of different conditioning methods on the shear bond strength (SBS) of resin cement on enamel and dentin. Prepared permanent human dentin and enamel samples (N = 210) embedded in clear acrylic resin were conditioned by 37% phosphoric acid etching, 50-µm alumina air abrasion, Er:YAG laser irradiation (120 mJ, 10 Hz, medium short pulse mode), or their combinations. Porcelain laminates were cemented by using photopolymerizing luting composite. SBS was evaluated after thermal cycling (10,000 cycles, 5–55°C) and fracture types (adhesive, cohesive, or mixed) were observed by stereomicroscopy. Data were analyzed by Kruskal–Wallis analysis of variance and followed by Tamhane's test (p < 0.05). Enamel and dentin specimens showed significant differences in SBS (p < 0.000). Er:YAG laser etching presents successful alternatives to acid etching on dentin surfaces; it does not enhance adhesion of the resin cement on enamel surfaces.