2000
DOI: 10.1590/s0366-69132000000300004
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Fratografia em vidros

Abstract: A deformação dos materiais cristalinos pode variar de extrema fragilidade a extrema ductilidade. A quantidade de deformação é função do tipo de ligação atômica (metálica, iônica ou covalente), da estrutura cristalina (cúbica, hexagonal, romboédrica, etc.), da microestrutura presente (tamanho de grão, precipitação, densidade de discordâncias móveis, etc.), das condições de ensaio (tipo e taxa de carregamento, temperatura, meio ambiente, etc.) e do estado de tensão presente. De forma geral, os materiais metálico… Show more

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“…The Southeast region of Brazil, is the region in South America where the largest industrial production of glass is concentrated. It is estimated [3] that 91.7% of the total glass products fabricated in Brazil are composed of 47.5% packing; 37.6% flat glass and 6.6% recipients. As a result, about 40 billion of bottles and other glass products are yearly discarded, mainly in the big city dumps [2].…”
Section: Introductionmentioning
confidence: 99%
“…The Southeast region of Brazil, is the region in South America where the largest industrial production of glass is concentrated. It is estimated [3] that 91.7% of the total glass products fabricated in Brazil are composed of 47.5% packing; 37.6% flat glass and 6.6% recipients. As a result, about 40 billion of bottles and other glass products are yearly discarded, mainly in the big city dumps [2].…”
Section: Introductionmentioning
confidence: 99%