Método de determinação da granulometria de ingredientes para uso em rações de suínos e aves.

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Granulometria do milho em dietas para suinos nas fases de crescimento e crescimento-terminacao.

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Granulometria do milho em rações para engorda de suínos.

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Nutrição é uma das bases da evolução da avicultura de corte no Brasil.

Projeto: 11.11.11.111

Glass and glass-ceramic from basic oxygen furnace (BOF) slag

A method is presented to produce glass-ceramics from a BOF slag glass containing a high amount of iron. The composition design of these unusual glasses, their melting and crystallization behavior, their crystal nucleation kinetics and the micro structures resulting from different thermal treatments are analyzed and discussed. Several compositions were tested, varying the proportions of slag, sand and Na2CO3 in the batch. A batch with a composition (in wt%) of 60 slag, 35 sand, 5 Na2O showed good vitrificability and displayed bulk crystallization after thermal treatment, and was therefore chosen for a more detailed study. Crystallized materials with nanometric microstructures were obtained using suitable treatments. Fracture strength, hardness and chemical resistance tests were performed. A product with fine volumetric crystallization, a high degree of crystallization, having marble-like appearance, improved mechanical strength and suitable chemical durability was obtained. The material may be suitable for floor and wall tile applications in the construction industry