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591467017铁虫 (小有名气)
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[求助]
求文献，急需，非常感谢~~~
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求文献一篇，比较老了，学校里下不下来 Inorganic phosphate glasses as polymers Auteur(s) / Author(s) OTAIGBE J. U. (1) ; BEALL G. H. (2) ; Affiliation(s) du ou des auteurs / Author(s) Affiliation(s) (1) Dept of Materials Science and Engineering, Iowa State University of Science and Technology, Ames, IA 50011, ETATS-UNIS (2) Science and Technology Group, Corning, Inc., Corning, NY 14831, ETATS-UNIS Résumé / Abstract It is now generally recognized that inorganic phosphate glasses are polymeric in nature in the sense that they are composed of chain-like structures like organic polymers. The chain-like structure of the former can range from 2 to 50 units of phosphate anion tetrahedra depending on the metal:phosphate ion ratio in the glass composition, but there is still some reluctance to accept the polymeric nature of other oxide glasses. This reluctance has resulted in researchers being mystified by several experimental observations such as shear-induced melt crystallization of such glasses. This article reviews some new insights into the melt crystallization mechanism, melt rheology and chain-like structure of phosphate glasses. The goal is to present new evidence and understanding showing that the structural dynamics ofphosphate glasses are essentially similar to those observed in organic polymers. The unanswered questions are discussed to guide future research directions. Revue / Journal Title Trends in polymer science ISSN 0966-4793 Source / Source 1997, vol. 5, no11, pp. 369-379 (88 ref.) |
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