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Lithium in the glass ceramic Industry

The shrinking of eucryptite made of low expansion or no expansion of ceramics used as thermal expansion of the standard parts, furnace heating parts of the coil spark plug wire cover, jet turbine blades, and temperature controller element l 12000 No. 2 non-ferrous metals lithium in the glass of W0RLDNONFERR0U_ETALS industrial application of ceramic parts. J pan set purposes. This material into a single system of law more than by the quality of porcelain and other ceramic and composite. Quality porcelain is more than a single lithium carbonate, clay and flint to make fools of raw materials, to generate B-spodumene solid solution product. The precision ceramic components, after the firing machine maple processed into precise dimensions, in 1000oC still very stable when the chemical properties, thermal shock resistance are particularly good,[link widoczny dla zalogowanych], in 1100oC invested in liquid or air quenching, repeated 100 times would not have any change. No expansion of ceramic compound is a shrink of 13 and a hot dark eucryptite expansion of crystalline materials to powder mixture and sintering into ceramics, heating, due to contraction and expansion cancel each other out, as no expansion 3.32 of a piezoelectric ceramic piezoelectric ceramic composition (mol%) were: PbO54.8 ~ 501, MnO93 ~ 0.2, Na2O73 ~ 02, Li: O38 ~ 0I, TiO24.8 ~ I48, ZrO268 ~ I48. The piezoelectric ceramics have high mechanical strength,[link widoczny dla zalogowanych], electric breakdown strength, piezoelectric coupling coefficient,[link widoczny dla zalogowanych], dielectric constant and the total volume is the stability of some lithium compounds piezoelectric materials such as lithium tantalate and lithium niobate single crystals. Can be used for piezoelectric devices and optical devices. Ferroelectric lithium niobate has a high piezoelectric coupling coefficients and the Curie point, the laboratory can be used as high-temperature ultrasonic energy converter. 3.33 Preparation of porous alumina ceramic hole lithium has changed the traditional method of ceramic powder size, adjust the different powder particle size and adding different proportions of forming agent. There is also a patent is to release the aluminum lithium powder in water 10rain 0 ~ 100 ℃ or more. Powder concentration of 1% ~ 20 (wt)%, and then drying with lithium aluminum crystal water, and then, after forming method of forming sintered ceramic can be obtained porous aluminum lithium. This ceramic can be used as filters. Impregnated with resin or molten metal gap can form a composite material L; also be used to produce fuel cell separators. 33.4 In order to reduce the global environmental protection ceramic carbon dioxide (CO1 emissions growth rapid degree of the impact of the human environment,[link widoczny dla zalogowanych], Toshiba has developed a lithium metal and zirconium compounds by the sintering into dense ceramics, known as the environmental ceramics, can absorb the equivalent of 4130 times its own volume of CO,. This material, once one of the lithium-exposed to high temperature gases and gas in the CO to a chemical reaction, the liquid raw Rong Li: O ceramic body by numerous micro-L The absorption of this material suitable for making power plants and other places of high temperature and high pressure CO: clearing device 4 Looking lithium compounds, especially lithium minerals in the pottery industry in the glass directly with the steady development of new products and applications continue to be developed, such as in metallurgy m industry decreased by LiO metallurgical slag viscosity, only less sensitive to alkali metal loss r slag, while reducing the metal from the residue with insect damage on the environment. the end of 1990, with the new boo from Ze Island extended to hit Africa and South America. special glass ceramic and enamel in the field of lithium compounds, especially the demand for lithium minerals. Kwame will continue to grow, lithium minerals in the future will be wrong l5% ~ 25 per year, increasing the rate of lithium care In the glass ceramic industry in the application will remain in the future of lithium applications important fields,[link widoczny dla zalogowanych], the outlook remains promising. of lithium industrial development of blood attention to this area of research and application promotion, and as the development of lithium industry in the future marketing strategy of market positioning direction References l of barrier. \Tin prices steady on rising international market. the international market is expected to tin prices in 2000 will continue to rise. The main reason is the control of tin exports. an annual output of refined tin in China 80 000 t, accounting for 40% of world production: Japanese trading companies that the Chinese tin exports in determining the tariffs before 2000 will be reduced by the amount of 13, while the European and American businesses eager to buy stock to enrich the stock, resulting in the international market of tin supply, prices rise}. Market analysts pointed out that in 1999, the global tin increased supply of 2O million t, excess supply 3000t; to 2000, the global tin supply and demand in balance, tin prices in 1999 will continue to rise based on j II: since 2001 the supply of tin shortage will appear 30001 , f 『『 grid will rise further c Tangxian Min}

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