Solid State Transformations
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Firing Behavior of the Clay Fraction of a Natural Kaolinitic Clay: Are They Different?
A comparative investigation on the firing behavior of a natural kaolinitic clay from Campos dos Goytacazes, Brazil, and its specific clay fraction was performed. The clay fraction, equivalent diameter less than 2 µm, was separated from the precursor clay by a sedimentation method. Chemical analysis, X-ray diffraction (XRD) and scanning electron microscopy w
Mat. Res.. Publicado em: 21/10/2019
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2. Phase transformations in an AISI 410S stainless steel observed in directional and laser-induced cooling regimes
The applications of the chromium ferritic stainless steel AISI 410S have been considerably increased in the last years in many technical fields as chemical industries and oil or gas transportation. However, the phase transformation temperatures are, currently, unknown for this alloy. The aim of this work is to determine the alpha to gamma transformation temp
Materials Research. Publicado em: 31/01/2012
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3. Dos sindicatos ao governo: a organização nacional do PT de 1980 a 2005
The thesis main goal was to test the partial applicability of the cartel party model (Katz and Mair), to understand the transformations in the national structure of the Workers Party (Partido dos Trabalhadores PT) between 1980 and 2005. The main hypotheses of the research derive directly from two of the three defining elements of such model. The secondary pu
Publicado em: 2008
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4. O modelo da macro-estrutura organizacional : experiência da administração estadual pernambucana relato e análise de uma experiência
This paper analyzes the implantation process of the basic organizational macrostructure at Pernambuco States direct management and how it articulates with the current public management organization. The role played by the Secretaria de Administração e Reforma do Estado SARE was emphasized, since it was chosen as the object of a case study due to its part i
Publicado em: 2007
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5. A economia solidÃria e o direito internacional econÃmico
This research intends to analyze experiences of the so called solidary economy under the prism of the Economic International Law. The transformations that occur in the international society indicate the need to investigate the possibility of juridical adjustment of the means of production which are seen as solidary. The definitions of the Economic Internatio
Publicado em: 2006
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6. Transformations in the interface: SAPO-44 / Transformações na interface : SAPO-44
O uso de precursores lamelares como fonte de silício para a síntese de alguns materiais zeolíticos vem sendo estudado, mas nada é conhecido sobre o uso de AlPO-kanemita (AlPO-kan), que é um material lamelar, como precursor único de átomos T (T = Al e P) para síntese peneiras moleculares. Neste trabalho foi desenvolvida a síntese de SAPO-44 utilizand
Publicado em: 2005
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7. "Famílias recompostas: casais católicos em segunda união". / Step Families: Catholic Couples on Second Union
ABSTRACT PORRECA, W. Step Families: Catholic Couples on Second Union, 2004. 124f. Masters Degree Dissertation Faculdade de Filosofia Ciências e Letras de Ribeirão Preto (FFCLRP)/Universidade de São Paulo (USP), 2004. The familial institution has been going through several changes, including the increase of separations and divorces, and the reduction
Publicado em: 2004
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8. SAE 1070 steels phases transformations by dilatometry: TTT curves / Transformações de fases isotérmicas por dilatometria do aço SAE 1070: curva TTT
The purpose of this work comes together with the objective to adapt a phase transformation research laboratory using dilatometric method, where it will be possible to study the solid state reactions of materials submited to thermal cycles. To fulfil this purpose, it was installed a high speed quenching dilatometer, model DT 1000 manufactured by Adamel Lhomar
Publicado em: 1993
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9. Efeito da ordem de curto-alcance em magnetismo e outros fenomenos cooperativos
The order-disorder transformation for the Ising model with spin 1/2 is studied in relation to several problems in the area of cooperative phenomena. All those problems can be described by a two-state model and correspondingly mapped onto the Ising model, their critical behavior having universal properties no matter the details of the interaction. Correlation
Publicado em: 1984
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10. Excipient selection can significantly affect solid-state phase transformation in formulation during wet granulation
Phase transformations in formulations can lead to instability in physicochemical, biopharmaceutical, and processing properties of products. The influences of formulation design on the optimal dosage forms should be specified. The aim here was to investigate whether excipients with different water sorption behavior affect hydrate formation of nitrofurantoin i
Springer-Verlag.