共查询到20条相似文献,搜索用时 171 毫秒
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美国《剑桥科学文摘》是国际上新近发展起来的、著名的大型综合性检索系统。其中的材料信息系统 (CarmbrigeScientificAbstracts MaterialInformation ,简称CSA MI)下属 5个数据库 :METADEX MetalsAbstracts,简称MDX ;EngineeringMaterialsAbstracts,简称EMA ;CeramicsAbstracts;CorrosionAbstracts;AluminiumIndustryAbstracts。近年来 ,我国的科技期刊在学… 相似文献
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唐伟家 《合成材料老化与应用》2001,(2)
据《ModernPlasticsInternational》 2 0 0 0 ,30(8) :19报导 ,由美国AES公司开发的专用于汽车内饰件的注塑级热塑性弹性体 (TPE)比其他竞争的TPE雾度小 50 %。AES公司提供的SantopreneTPE新系列M30 0经DIN 752 0 1B标准试验 (10 0℃ ,16h)表明 ,M30 0不仅雾度小 ,而且味道极小 ,具有非光泽外观和良好的UV (紫外线 )稳定性 ,看起来为一种干的、非油脂性外表。该公司的汽车部副总裁RobertS Liskiewicz指出 ,M30 0材料为客户提供了用于汽车内饰件同时具有最… 相似文献
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俄罗斯专家在咸阳进行讲学及技术交流经国务院智力引进办批准,应化工部及中联橡胶总公司的邀请,全苏弹性体材料与制品科学研究院(All-UninScientificResearchInstituteofElastomericMaterialsandArti... 相似文献
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镀槽材料污染化学镀镍液的事故郭志军,苏敏,麦青(兰州石油机械研究所邮码:730050)ContaminationofElectrolessNickelPlatingSolutionfromTankLining¥GUOZhijun;SUMin;MAIQ... 相似文献
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英语翻译技巧(13)涂学忠(化工部北京橡胶工业研究设计院100039)2.6CONVERSIONOFMASTERBATCHESMasterbatchesCanbeconvertedtocompotlndsbytheadditionofcuratlve... 相似文献
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国外含能材料发展动态李上文赵凤起(西安近代化学研究所西安710065)NewDevelopmentsofEnergeticMaterialsAbroadLiShangwenZhaoFengqi(Xi'anModernChemistryResearch... 相似文献
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利用日本北海道江差元山瓷石研制瓷器周宝海,孙淑芝(唐山市陶瓷研究所,唐山063020)TheDevelopnlentofPorcelainUsingMaruyamaPoueryStoneinEsasiHokkaido,Japan¥ZhouBaohai... 相似文献
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《感光科学与光化学》1995,(1)
SEMICONDUCTINGPOLYMERDEVICES:NEWDEVELOPMENTSYUGANG(InstituteforPolymersandOrganicSolidsUniversityofCaliforniaatSantaBarbara,S... 相似文献
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Conserving the cultural heritage is a general concern and the use of non-destructive techniques to characterize ancient materials is important. Serious deterioration effects in environmentally exposed ancient glazed ceramic tiles arise from the development of micro-organisms (algae/fungi) within the pore system. Subsequent biodegradation processes are particularly harmful once the decorated glaze is damaged by exfoliation/detachment.Three case studies will be addressed: Portuguese polychrome decorated tiles from the interior of two churches (16th–17th century) and from the outdoor of a Palace (18th century). Small tile fragments were directly irradiated in a wavelength-dispersive X-ray fluorescence spectrometer for glaze chemical characterization and subsequently irradiated in a powder diffractometer to assess the phase constitution of both glaze and ceramic body.Cleaning and conserving these ancient cultural artifacts involve a decontamination process applying innovative non-destructive techniques. The present work is intended as a contribution to diagnose the actual degradation state of ancient tiles in view of future decontamination actions using gamma radiation. 相似文献
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无釉瓷质仿古砖的研制 总被引:1,自引:0,他引:1
本文介绍了无釉瓷质仿古砖的性能、工艺原理及其特殊的生产技术要求 ,着重探讨了以坯浆替代釉料等应用于制品表面装饰的工艺关键 ,并指出 ,与有釉炻 (瓷 )质仿古砖相比 ,本产品具有更优的技术经济特性 相似文献
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无釉瓷质仿古砖的研制 总被引:2,自引:0,他引:2
本文介绍了无釉瓷质仿古砖的性能、工艺原理与其特殊的生产技术,探讨了以坯浆替代釉料等应用于制品表面装饰的工艺关键,并指出,与土釉炻(瓷)质仿古砖相比,本研制产品具有更高的技术经济特性。 相似文献
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《Ceramics International》2022,48(6):7393-7404
The resistance that microorganisms develop to antibiotics is a worldwide challenge. The antimicrobial agents as disinfectants for surface treatments are widespreadly used to prevent the proliferation of microorganisms, but their use should be repeated over time to ensure a complete microbe-free surface. Surfaces with permanent antimicrobial properties suppose a recent demand in materials science for functional polymeric coatings, metals, treated wood or ceramic glazed tiles. Whereas polymeric coating has been extensively studied, the antimicrobial functionality on ceramic glazed surfaces is not completely achieved. This work reviews glazed ceramic tiles developments in antimicrobial and virucidal surfaces. The main antimicrobial physical or chemical mechanisms have been described as the base to develop active glazed surfaces. The main tests required to evaluate the antimicrobial response in glazed ceramic tiles are also summarized. The high temperature required in the ceramic processing is the key point to achieve a micro/nanostructure that potentiates the antimicrobial and virucidal response of the glazed surfaces. A discussion on recent developments as well as the main routes and challenges to obtain permanent surfaces with antimicrobial and virucidal response is provided. 相似文献
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《Journal of the European Ceramic Society》2007,27(1):101-108
The aim of this investigation was to examine the effect of surface topography of different compositions and surface coatings of glazed ceramic tiles on their cleanability. The cleanability was estimated with color measurements. Contact angle measurements were used to describe the surface properties and profilometry and electron microscopy to describe the topography. The effect of additional coatings on the surface properties was compared by applying experimental zirconia and titania coatings as well as a commercial fluoropolymer coating on one of the experimental and all reference glazes. The results show that there were clear differences between the soiling tendencies of the glazes. Generally the topography measurements show that the rougher was ceramic glaze, the more soil adhered on its surface. 相似文献
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M.F. Gazulla E. Sánchez J.M. González M.C. Portillo M. Orduña 《Journal of the European Ceramic Society》2011,31(15):2753-2761
This paper examines the relationship of certain red ceramic roofing tile properties to roofing tile biodeterioration. The following properties were studied: apparent porosity, roughness, and the presence or absence of two types of coatings.The effect of apparent porosity was studied by varying the peak firing temperature of a standard industrial red ceramic roofing tile composition and by preparing several clay mixtures, of different chemical and mineralogical composition, that were fired at various peak temperatures. The effect of roofing tile roughness was determined by either polishing or sanding fired standard red roofing tiles. A waterproof ceramic glaze coating and a photocatalytic coating were formulated to analyse the effect of the presence of different types of coatings. Roofing tile bioreceptivity was evaluated with a method developed in a previous study using the cyanobacteria Oscillatoria sp, which enabled roofing tile resistance to microbial colonization to be determined.As expected, bioreceptivity rose as apparent porosity (measured as water absorption) increased, enabling possible water retention, which favours biological growth. Similarly, greater roughness encouraged micro-organism adhesion and raised bioreceptivity. It was found that, after prolonged exposure periods (several months) under very favourable conditions for biological colonization, roofing tiles coated with the waterproof ceramic glaze were colonized. However, glazed standard red roofing tiles covered with a TiO2 photocatalytic coating exhibited practically no biological growth under the test conditions used, even after long exposure times, owing to the chemical-physical effect of the TiO2-based coating. 相似文献
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Wall tile glazes with a smooth surface texture, high glossiness, and whiteness are usually based on zirconium containing frits. However, these frits are quite expensive and therefore, there have recently been certain attempts to lower the production cost such as taking suitable glass–ceramic glaze systems into an account. With the present work, the frit-based glaze compositions belonging to the K2O–MgO–CaO–ZnO–Al2O3–B2O3–SiO2 glass–ceramic system were studied to prepare newly synthesized wall tile glazes for industrial single fast-firing. The design of a glass–ceramic glaze for this type of tiles should ensure that the selected frit precursor is technically and commercially compatible with the manufacturing conditions generally used in the production of glazed ceramic wall tiles. The aim of the study is to develop zircon-free, frit-based, glossy opaque glass–ceramic glazes for wall tiles by optimizing the CaO/MgO and adjusting the Al2O3/alkali ratios in the starting frit compositions. Frit production, glaze preparation, application, and single fast-firing of wall tiles were, first of all, conducted under laboratory working conditions and then, successful recipes were adapted to the relevant industry. The frit crystallization capability and crystallization temperature range were determined by differential thermal analysis (DTA). Thermal expansion coefficient values of glazes were determined by a dilatometer. Characterization of single fast-fired glass–ceramic glazes was made by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) techniques. Colour and gloss analyses of the final glazes were measured with a spectrophotometer and a gloss meter, respectively. 相似文献