ZnO瓷粉／Ag复合材料的电学特性

通过传统的陶瓷工艺在较低的温度（〈1000℃）下制备了以ZnO陶瓷为基体的ZnO陶瓷／Ag复合材料．主要考察和讨论了其电学性能及相关问题．     

Statistical algorithm for damage detection of concrete beams based on piezoelectric smart aggregate

The functional piezoelectric ceramic smart aggregate(SA) sensors and actuators,based on piezoelectric ceramic materials such as lead zirconium titanate(PZT),were embedded into the reinforced concrete beams with three-point bending under static loading for purposes of damage detection.The SA actuators generated the desired sine sweep excitation signals online and the SA sensors received and detected real-time signals before and after damage.The wavelet analysis and statistical characteristics about damage signals were used as a signal processing and analysis tool to extract the optimal damage information and establish a statistical damage detection algorithm.The damage index-based wavelet analysis and damage probability-based probability and statistics were proposed by PZT wavebased theory and active health monitoring technology.The results showed that the existence of cracks inside largely attenuated the amplitude of active monitoring signal after the damage of beam and the attenuation was related to the severity degree of damage.The innovative statistical algorithm of damage pattern detection based PZT-SA can effectively determine damage probability and damage degree,and provide a prediction for the critical damage location of reinforced concrete structures.The developed method can be utilized for the structural health comprehensive monitoring and damage detection on line of various large-scale concrete structures.     

一种可控沸腾报警装置的设计与应用

介绍一种新型可控的沸腾报警装置的设计原理,并结合电磁炉的加热特性,提出了适用于生态瓷壶的可控沸腾报警装置的具体措施.该设计方案结构简单,使用安全,成本低廉,避免了废旧电池对环境的污染.装置在水沸腾后自动切断电磁炉加热电路,既消除了安全隐患,又节省了能源,可适用于非金属电磁炉加热容器,具有很高的实用性.     

正交试验法优选镀锌板的硅锆复合处理工艺

运用正交试验设计方法,考察了锆盐和硅烷水解液用量、固化温度及固化时间对硅锆陶化液用于镀锌钢板防腐能力的影响,优选出锆盐质量0.4 g、硅烷水解液体积3 mL、固化温度为130℃、固化时间为60 min的工艺条件,并通过验证试验证实了实验的重现性。     

碳纤维增强陶瓷基复合材料抗氧化技术研究

碳纤维增强陶瓷基复合材料(CFRCMCs)具有良好的高温力学性能和热性能,是航空航天领域非常理想的热结构材料.但CFRCMCs中的碳纤维极易发生氧化,因此CFRCMCs的氧化防护问题一直是CFRCMCs研究的热点.文章对碳纤维改性、基体抗氧化技术、界面层抗氧化技术和表面涂层技术这四种CFRCMCs的抗氧化技术及其原理进行了评述,分析了各类抗氧化技术的特点并对其发展趋势进行了展望.     

The structural study of Ghaffarieh Dome tile-workings in Maragheh Town based on laboratory studies

The history of using tiles in Persian architecture dates back to the eleventh century. In the beginning, tiles were made of bricks and mounted with plaster. Thereafter, however, tiles were replaced with mosaics to decorate buildings. The technique of applying mosaics began in the thirteenth century and reached its summit during the Ilkhanid and Timurid periods between the fourteenth to sixteenth centuries. One of the most outstanding buildings in which mosaics were widely used is Ghaffarieh Dome, a fourteenth-century building in Maragheh, Eastern Azerbaijan. The Dome is especially noteworthy for its unique mosaic workings. Therefore, a thorough examination of the mosaics used in the Dome may pave the way for closer studies of the Ilkhanid mosaics (tile-workings) in Iran. Since there is little information on the material aspects of mosaics used in the Ghaffarieh Dome, the body and glaze of the mosaics were examined through instrumental analyses. In order to interpret the results of the analyses, they were compared with existing data about similar mosaics of Islamic lands. The presence of pyroxene (aluminum diopside) in some of the mosaic bodies revealed that the firing temperature limit in the kiln was not, most likely, uniform. Two kinds of glazes, alkaline and lead-based, were used to produce black and turquoise colors.     

介绍一个材料化学专业综合性实验——二氧化铈基电解质材料的制备及其性能表征

专业实验目的是训练学生的专业技能,提高学生的综合素质.采用化学共沉淀法制备Ce0.8Sm0.2O1.9粉体,采用干压法压制成5×5×50 mm长条形样品和直径15 mm样片.用XRD对其结构进行表征,用阿基米德排水法和热膨胀仪对其致密度和烧结性能进行表征,用交流阻抗谱对其电学性能进行表征.通过实验,学生基本了解化学共沉淀方法的原理、致密度的测试方法以及电学性能的表征方法.     

浅析我国高职陶瓷艺术设计专业的人才培养模式

陶瓷艺术设计教育,是以陶瓷为媒介和一定的学术侧重而展开的教育活动。对高职陶瓷艺术设计教育而言,在继承陶瓷艺术悠久的历史文化传统的基础上,运用"3+3"人才培养模式,为社会培养出应用型高素质技能人才,是我国当前高职教育发展的必然趋势。     

圆明园琉璃瓦片状云母氧化铁的形成机理

使用光学显微镜、EDXRF、SEM、XPS和XRD对圆明园出土的部分黄色琉璃瓦釉黄中泛红现象进行分析,以研究琉璃瓦的变色机理。分析表明：琉璃瓦的釉层属于一种铅硅系玻璃,釉层呈现黄中泛红现象是由于红色区域和黄色区域中Fe存在形式不同所致,釉层红色区域中Fe主要是以α-Fe₂O₃晶体形式存在,黄色区域中Fe是以Fe³⁺与Fe²⁺的形式存在。这种现象产生的本质是由于黄色区域中的Fe²⁺在高温条件下被O₂氧化为Fe³⁺,然而高温导致釉层流失,进而导致釉层中的Fe³⁺析出富聚为六角片状的α-Fe₂O₃晶体颗粒所致。α-Fe₂O₃显红色又被称为云母氧化铁红,是非常重要的防锈防腐涂料以及珠光颜料。