نتایج جستجو برای: semisolid processing

تعداد نتایج: 500418  

Journal: :The International Journal of Advanced Manufacturing Technology 2023

Abstract The mechanical properties and physical characteristics of aluminum alloy composites can be significantly improved by adding reinforcing phases. However, the high loading reinforcement phase in Al7075-Al 2 O 3 has not been thoroughly studied. In this work, a combination semisolid metal powder processing metallurgy is used to process manufacture with fraction > 40 vol.%. effects param...

Journal: :Materials Research-ibero-american Journal of Materials 2021

Semisolid state processing is a methodology that transforms dendritic as-cast microstructure into globular non-dendritic with optimized mechanical properties. Rheocasting process involves mechanically stirring metals in semisolid and its benefits are associated parameters. In order to evaluate time effects, magnesium alloy MRI 230D (Mg–Al6.45–Ca2.25–Mn0.27–Sr0.25–Sn0.84) was melted cooled down ...

M. Shahmiri,

In the present work microstructural evolution of A356 Aluminum alloy using an inclined cooling plate casting process for thixoforming feedstock production is investigated. The resultant microstructure was evaluated and compared with those of the same alloy produced by the conventional casting process, i.e. directly cast in the same mold without using an inclined cooling plate. It was found that...

Journal: :Magnetic resonance in medicine 2014
Dariya I Malyarenko Ellen M Zimmermann Jeremy Adler Scott D Swanson

PURPOSE This study examines the relationship between quantitative magnetization transfer (qMT) parameters and the molecular composition of a model lamellar liquid crystal (LLC) system composed of 1-decyl alcohol (decanol), sodium dodecyl sulfate (SDS), and water. METHODS Samples were made within a stable lamellar mesophase to provide different ratios of total semisolid protons (SDS + decanol)...

Journal: :Applied and environmental microbiology 1991
E Espejo E Agosin

Our results show that all of the brown rot fungi tested produce oxalic acid in liquid as well as in semisolid cultures. Gloeophyllum trabeum, which accumulates the lowest amount of oxalic acid during decay of pine holocellulose, showed the highest polysaccharide-depolymerizing activity. Semisolid cultures inoculated with this fungus rapidly converted C-labeled oxalic acid to CO(2) during cellul...

2002
Piyush Gupta Sanjay Garg

ceutical dosage forms. They serve as carriers for drugs that are topically delivered by way of the skin, cornea, rectal tissue, nasal mucosa, vagina, buccal tissue, urethral membrane, and external ear lining (1). Because of their peculiar rheological behavior, semisolids can adhere to the application surface for sufficiently long periods before they are washed off. This property helps prolong d...

Journal: :Applied microbiology 1969
A R Sessoms G J Banwart

The effect of Brilliant Green on motility was studied with Salmonella anatum, S. derby, S. tennessee, Escherichia coli, Proteus vulgaris, and Pseudomonas aeruginosa. Semisolid tryptic soy-agars containing 0, 20, or 40 mg of Brilliant Green per liter were used as the motility media. Both concentrations of Brilliant Green inhibited the growth of the non-Salmonella species through the semisolid ag...

A. H. Shafie Farhood, F. Akhlaghi,

Abstract: structures in alloys. This method is based on pouring the melt through a small sized nozzle into a mould located at acertain height under the crucible. This simple method generates globular structures without using equipments such asimpellers, electromagnetic stirrers, ultrasonic probes and cooling slopes. Therefore it is cost effective. In the presentstudy, the effect of casting size...

, H. Arabi , M .Shahmiri,

  Abstract:   The aims of this research were to investigate the effects of semisolid metal (SSM) processing parameters (i.e., shear rates –times – temperatures combinations) on the primary solidification products and isothermal holding duration, subsequent to cessation of stirring on the secondary solidification of Al-Si (A356) alloy.   The dendrite fragmentation was found to be the governing m...

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