نتایج جستجو برای: ultra fine grained ufg

تعداد نتایج: 175662  

Journal: :The Open Automation and Control Systems Journal 2015

بختیاری, سمیه, صفی‌پور, محمد, عباسلو, حکیمه,

In Iran, a large extent of the soils and water are facing with salinity; so the geotechnical properties of arid and saline soils are important for engineering design. In this study, the effects of salinity on geotechnical properties of fine-grained and coarse-grained soils containing fibrous clay minerals have been studied. The results showed that salinity was mostly a flocculated agent in fine...

2009
E. Dobrică C. Engrand H. Leroux J. Duprat

Introduction: The CONCORDIA micrometeorite collection recovered from central Antarctic snow contains fluffy, fragile particles [1] among which we identified some UltraCarbonaceous Antarctic Micrometeorites (UCAMMs) [2, 3]. UCAMMs are dominated by up to ~ 80 vol% of carbonaceous material that contains small and complex mineral assemblages [2-4]. Their structure and chemical compositions are remi...

Journal: :Journal of the Korea Society For Power System Engineering 2011

Journal: :Journal of the Japan Institute of Metals and Materials 2002

Journal: :Metals 2023

Face-centered cubic (FCC) high-entropy alloys (HEAs) have attracted considerable attention due to their excellent mechanical properties; however, an insufficient yield strength (YS) limits widespread engineering applications. To improve the of FCC HEAs, present work aims develop fine-grained Nb-containing CoCrNi-based HEAs with precipitates. In work, a single-phase CoCrNi1.5Nb0.2 HEA was proces...

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