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Descrições estruturais cristalinas de zeólitosDescriptions of crystalline structures of zeolites
(Sociedade Brasileira de Química, 2007)
Effect of ball milling on structural and physicochemical characteristics of cassava and Peruvian carrot starches
Peruvian carrot and cassava starches were ground in a ball mill for 4, 8, 16, and 32 h and their structural and physicochemical characteristics were determined. Results obtained from HPAEC-PAD, GPC, and amylose content ...
Influence of current density on crystalline structure and magnetic properties of electrodeposited Co-rich CoNiW alloys
The influence of current density, at the interval 5-100 mA cm-2, on the structural and magnetic properties of electrodeposited (Co 100-xNix)100-yWy alloys (x = 23-33.5 at. % Ni, y = 1.7-7.3 at. % W) was studied from a ...
Descriptions of crystalline structures of zeolites.
(Soc Brasileira QuimicaSao PauloBrasil, 2007)
Effects of autohydrolysis of Eucalyptus urograndis and Eucalyptus grandis on influence of chemical components and crystallinity index
Samples of Eucalyptus urograndis and Eucalyptus grandis sawdust were autohydrolyzed in aqueous conditions to reach temperatures in the range 110-190 °C and reaction times of 0-150 min in a minireactor. In each minireactor ...
Correlation between degree of crystallinity, morphology and mechanical properties of PPS/carbon fiber laminates
The crystallization degree in semi-crystalline thermoplastics plays an important role in determining the final properties of structural composite material (e.g. Toughness, stiffness and solvent resistance). The main purpose ...
Liquid crystalline cellulosic elastomers: free standing anisotropic films under stretching
The structure and local ordering of 1,6-hexamethylenediisocyanate-(acetoxypropy1) cellulose (HDI-APC) liquid crystalline elastomer thin films are investigated by using X-ray diffraction and scattering techniques. Optical ...
Structural modifications in stretch-induced crystallization in PVDF films as measured by small-angle X-ray scattering
The nanostructure of stretched and nonstretched PVDF samples was studied by small-angle X-ray scattering (SAXS). The crystallinity of the samples was determined by wide-angle X-ray diffraction (WAXD) and differential ...