Papers by Keyword: Raw Materials

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Authors: Lei Zhang
Abstract: The aim of this research on the application feasibility of raw materials of ice and snow in cold area is to find out the relationships among the ecology, sustainability and the urban landscape, and to put forward the universal application feasibility on landscape in cold area. Firstly, this paper first use urban centers of Harbin as the research object to analyse the climatic zones, geography, the distance between ice source location and mining ice location. Secondly, the application feasibility conditions of the cold raw materials, ice and snow, in Harbin urban landscape design is proposed and the application conclusions is drawn. At the same time, the universal application feasibility conditions of the cold raw materials, ice and snow, in urban landscape are established for the research of principles and methods.
351
Authors: Oluwafemi Samuel Adelabu
Abstract: The application of glazes on clay-based ceramic products has been identified as one of the best form of ceramic decorations. This can be attributed to its characteristic to lend aesthetic value to ceramic products and also to render them more durable, useful and hygienic. This paper reports an investigation on the development of new ceramic glaze recipes by means of selected glaze software packages using locally available raw materials in Nigeria. For the achievement of this study, survey methods, material oxide analysis, as well as kiln firings have been used. The results established the possibility of using existing glaze software in Nigeria so as to derive new recipes from old ones by using local material analyses database. The study indicates that with recent technological solutions, local raw materials can be properly identified and maximally utilized for a nation’s industrial development and sustainable economic growth.
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Authors: Xiakeer Saitaer, Chu Yang Zhang
Abstract: As a kind of handicraft of Uygur, Xinjiang Hetian carpet takes up a pivotal position in Uygurs life, because Hetian was the birthplace of the Uygur carpet and the production of carpet in Xinjiang has always been centered on this place. Elaborately made by folk artists with traditional hand craft, Uyghur carpet is sophisticated in materials, delicate in textile technology, which is one of the major reasons why it is favored by customers from both home and abroad. With distinctive national features and strong local colors, Uyghur carpet is called as a distinctive oriental carpet. [ The raw materials and weaving processes, etc. of Xinjiang Uyghur folk hand-woven carpet is described in this paper.
459
Authors: Jae Hwan Pee, Na Ri Lee, Geun Hee Kim, Yoo Jin Kim, Yoon Suk Oh, Hyung Tae Kim, Gyu Seoul Kim
Abstract: Metal marking and scratching are related to surface roughness, hardness and toughness of glaze. To improve the glaze properties, frits were added in the traditional celadon glaze and reducing firing atmosphere was controlled. Surface roughness of celadon glaze was decreased with increasing the reducing agent content (LPG flowing rate) and increasing the frits content. Though hardness of glaze without frit was increased with increasing the reducing agent content, hardness of glaze with frit was not changed extremely with increasing the reducing agent content. To evaluate the metal marking and scratching resistance, wear resistance test was used with stainless steel ball. After wear test, many metal marks and wide scratching trace were observed in the traditional celadon glaze. However, a few metal mark and scratch were observed in the celadon glaze with frit. The friction coefficient of glaze in the wear test was strongly depended on the frit contents.
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Authors: Geun Hee Kim, Jae Hwan Pee, Yoo Jin Kim, Lada Punsukumtana, Hae Jin Hwang
Abstract: LBP has six steps, which are charging, exposure, development, transfer, fusing, cleaning and discharge, for the printing product. In these steps, we focused on the development step for the source of submicron inorganic pigments. The toner is a negatively charged combination of inorganic particles. A control blade holds the toner at a micro size distance from the drum. The inorganic pigment then moves from the control blade to the more positively charged latent image on the drum. The image in static electricity needs to be developed – made visible. The developer introduces small particles of toner onto the static-charged surface of the drum. In this study inorganic pigments were coated by functional silanes to provide particles with the electrostatic charge. The coating thickness and kinds of silanes were changed to evaluate the electrostatic charge of coated pigments. After coating process, the electrostatic charge of inorganic pigments coated with silanes were evaluated by the Faraday’s device. We will introduce the effect of 3-(N-phenylamino) propyltrimethoxy silane and phenyl tris (methylethylketoxime) silane coating on the electrostatic charge of inorganic pigments.
167
Authors: P.S. Gordienko, V.A. Dostovalov, E.V. Pashnina
Abstract: The use of titanium dioxide is so diverse that varies from food to heavy industry and it is the main substance in the titanium industry. Over 90% of the world's mined titanium concentrates are processed to produce pigments. The sources for the production of titanium dioxide are the typically used titanium-containing ores including minerals rutile, ilmenite, and others. The volume of world production of titanium dioxide pigment exceeds 5 million tons per year and it is carried out in two ways: sulphate and chlorine (in approximately equal volumes). The changed approach to the green production processes requires the improvement of existing technologies and the development of new methods for processing titanium-containing raw materials. The authors have experimentally confirmed the high efficiency of complex, waste-free processing of titanium-containing raw materials developed by hydrofluoride. Creating pigment production on the basis hydrofluoride method will meet not only the domestic needs but also offer thepigment for export, as its parameters will surpass those of the best world analogues.
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Authors: Parinya Somrang, Anucha Wannagon, Watcharee Sornlar, Pattarawan Choeycharoen, Sitthisak Prasanphan, Witaya Shongkittikul
Abstract: Lampang, a province in northern Thailand, is the important source of ceramics raw materials, such as kaolin, pottery stone, and ball clay. This study aims to investigate the new ceramics bodies by using these local raw materials. About 50 samples from 15 sources were collected to analyze the chemical composition, mineral composition, and physical properties. Kaolin samples principally consisted of quartz and kaolinite. Its greyish color after firing at 1200 °C made it suitable for stoneware product that does not require white body. The principal ball clay mineral is kaolinite, associated with illite and quartz. All ball clay samples are high strength, which are suitable for tableware production. Pottery stone which can be found at Kaolin deposit, showed a mixed mineralogy of quartz, albite, and muscovite, while some samples showed the presence of kaolinite. It showed significantly low on shrinkage. Pottery stone are widely used as flux in both ceramics body and glaze. These analyzed characteristics were put into the ceramics raw materials database which can be searched on-line. This data is useful for the researching of ceramics body compositions with mainly contained raw materials from Lampang.
187
Authors: Jian Neng Wang, Jaw Luen Tang, Wei Te Wu, Der Cheng Chen, Chien Hsing Chen, Ching Ying Luo
Abstract: A microfluidic system for chloride ion measurement using a long-period fiber grating (LPFG) is presented. Optical fiber sensors based on waveguide technology are promising and attractive in chemical, biotechnological, and civil engineering applications. The LPFG-based microfluidic system used to measure the transmission powers of different chloride ion concentration solutions of sea sand and seawater. The results show the relationship between transmitted light intensities and different chloride ion concentration solutions was close to linear. This system could be potentially used to discriminate the different chloride ion concentration solutions. This LPFG-based microfluidic system for chloride ion measurement reported here could hopefully benefit the development and applications in the field of civil engineering especially for concrete and raw material testing as well as infrastructure health monitoring.
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Authors: M.M. Jordán, T. Sanfeliu, Ma.B. Almendro, Jesus Maria Rincón
2221
Authors: Adrian Alexandru Şerbănoiu, Alexandru Timu
Abstract: In an era when the economic crisis is coupled with the immigrants crisis thus exponentially increasing the number of those who need social assistance the need of living spaces is increasingly more. Building of such areas requires a high consumption of resources without fully addressing the requirements of comfort and efficiency. The Life cycle assessment of the product LCA is an environmental management technique that identifies flows of materials, energy and waste of a product during a product life-cycle management and environmental impact. Life cycle assessment (LCA) models the complex interaction between a product and the environment from cradle to grave. It is also known as life cycle analysis or ecobalance. Even though the LCA methodology is applied in building social housing there are few studies which analyze its impact on the construction phase of design, production, use and post- use as well as how the use of precast technology would meet LCA. The study aims is to identify those technologies and building materials that meet both the increasing requirement of achievement of cheap social housing but also meet the quality and environment standards. In this context the LCA (Life-cycle assessment), help us to develop a new methodology which consider the concept of housing as a product made from organic materials, cheap, easy to put into practice, which retain their value over the life of the building with minimal intervention during operation, and when the demolition occurs, the used materials can be exploited with low power consumption and without harming the environment.
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