By J. Fricke (auth.), Professor Dr. Jochen Fricke (eds.)

This ebook comprises the papers awarded on the "First foreign Sympo­ st sium on Aerogels (1 ISA)", held in September 1985 at. the collage of Wiirzburg, Fed. Rep. of Germany. It was once the 1st meet.ing of this type, wit.h members from a number of eu count.ries, the USA of the United States, Canada, South the US, and Africa. The assembly was once interdisciplinary, with many of the individuals being physicists, chemists or fabric scientists ei­ ther from universities or from commercial learn institutes. enable me try and shed a few mild upon the category of drugs the symposium used to be approximately: Aerogels are super porous high-tech fabrics, consisting ei­ ther of silica, alumina, zirconia, stannic or tungsten oxide or combinations of those oxides. as a result of their excessive porosity (up t.o 99%!) and t.heir huge internal floor, aerogels function particularly lively catalysts or as catalytic subst.rates, as adsorbents, fillers, reinforcement brokers, pigments and gellifying brokers. Silica aerogels as translucent or obvious superinsulating fillers in window structures may possibly aid to significantly lessen thermal losses in home windows and to enhance the strength stability in passive sunlight platforms. Aerogels even have fas­ cinating acoustic houses - the sound pace should be as little as a hundred m/s! The creation of aerogels begins with the managed conversion of a sol right into a gel: the expansion of clusters or polymer chains from a chemical resolution, the cross-linking of those basic entities and the formation of a coherent community - nonetheless embedded in a liquid.

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Extra resources for Aerogels: Proceedings of the First International Symposium, Würzburg, Fed. Rep. of Germany September 23–25, 1985

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J. Teichner : Nucl. Instrum. Methods, 118, 177 (1974). J. Chim. , 71, 1537 (1974). t,1. Pajonk, M. J. M. Haynes and P. W. Arrowsmit~ Bristol 1985, p. 227. K. C. Mishra : Indian J. , 38, 11 (1976). t1. Formenti, J. Juillet, P. J. Teicnner : Bull. Soc. Chim. France, 1972~ 69. B. Taghavi, G. J. Teichner Bull. Soc. Chim. France, 1978, 302. B. Taghavi, G. J. Teichner J. Coll. Interf. , 21, 451 (1979) . A. Muller, F. J. Teichner : Bull. Soc. Chim. France, 1976, 1361. G. t~atis, F. J. Teichner, Bull. Soc.

Teichner : Bull. Soc. Chim. France, 1970, 3384. A. J. Teichner : J. Chim. , 65, 870 (1968). M. Cantin, 11. Casse, L. Koch, R. Jouan, P. Mestreau,- D. Roussel, F. Bonnin, J. J. Teichner : Nucl. Instrum. Methods, 118, 177 (1974). J. Chim. , 71, 1537 (1974). t,1. Pajonk, M. J. M. Haynes and P. W. Arrowsmit~ Bristol 1985, p. 227. K. C. Mishra : Indian J. , 38, 11 (1976). t1. Formenti, J. Juillet, P. J. Teicnner : Bull. Soc. Chim. France, 1972~ 69. B. Taghavi, G. J. Teichner Bull. Soc. Chim. France, 1978, 302.

Rubin for allowing the use of the critical point drying apparatus and UV /VIS/NfR spectrophotometer, respectively, and to Dr. Paul Berdahl for helpful discussions. S. Department of Energy under Contract No. DE-AC03-76SF0009S. 11. References 1. S. Kistler: Nature 127,741 (1931). S. Kistler: J. Phys. Chem. 34, 52 (1932). S. Henning and L. A. J. Teichner: Bull. Soc. Chim. 5, 1900, 1909 (196S). M. Cantin, M. Casse, L. Coch, R. Joun, P. Mestreau and D. Roussel: Nucl. Inst. and Methods, l1S, 177 (1974) 6.

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