Results 21 to 30 of about 5,084 (220)

On the toughness of thermoplastic polymer nanocomposites as assessed by the essential work of fracture (EWF) approach [PDF]

open access: yes, 2013
The essential work of fracture (EWF) approach is widely used to determine the plane stress fracture toughness of highly ductile polymers and related systems.
Bárány, T.   +4 more
core   +1 more source

The main types and mineral composition of bauxites of the Kursk Magnetic Anomaly

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2020
The bauxite-bearing Paleozoic weathering crust of the Kursk Magnetic Anomaly (KMA) is developed along the inter-ore schists of the ferruginous-siliceous formation of the Kursk series.
A.D. Savko, M.Yu. Ovchinnikova
doaj   +1 more source

Experimental Stability and Thermal Characteristics Enhancement Analysis of Water Based Boehmite Nano fluid [PDF]

open access: yesEngineering and Technology Journal, 2015
In this work attempt was made to formulate water based boehmite (AlOOH) nanofluid in one and two steps methods. Boehmite is the first born alumina phase as prepared by sol gel route using aluminum isopropoxide precursor, exhibit a combination of ...
Mohammed Hussein J. Al –Atia   +1 more
doaj   +1 more source

The effects of aging time on the sol-gel properties and its relationship with the anti-corrosive performance of coatings prepared by sol-gel dip coating

open access: yesJournal of Materials Research and Technology, 2023
This work evaluated the changes in the physicochemical properties (viscosity, surface tension, and zeta potential) of both alumina sol and boehmite solution at different aging times and their relationship with the corrosion resistance (in a saline ...
Antônio Vitor de Castro Braga   +3 more
doaj   +1 more source

XRD, TEM and thermal analysis of Fe doped boehmite nanofibres and nanosheets [PDF]

open access: yes, 2007
Iron doped boehmite nanofibres with varying iron content have been prepared at low temperatures using a hydrothermal treatment in the presence of poly (ethylene oxide) surfactant.
Zhao, Yanyan   +7 more
core   +1 more source

Pristine point of zero charge (p.p.z.c.) and zeta potentials of boehmite’s nanolayer and nanofiber surfaces

open access: yesInternational Journal of Smart and Nano Materials, 2016
The pristine point of zero charge (p.p.z.c) and zeta potential as a function of pH of boehmite oxide/hydroxide (α-Al2O3·H2O) have been determined for three filter media. The active component in the first two filter media is boehmite nanofibers, only 2 nm
Leonid A. Kaledin   +2 more
doaj   +1 more source

Comparison of the Raman spectra of Bayerite, Boehmite, Diaspore and Gibbsite [PDF]

open access: yes, 2001
Gibbsite and bayerite are alumina trihydrate (Al(OH) 3). Gibbsite occurs abundantly in nature, usually as a major mineral component in bauxite whereas bayerite is rarely found in nature.
Frost, R. L.   +5 more
core   +1 more source

The use of boehmite in tribology

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The analysis of the results of the use of nanostructure boehmite as a break-in and prophylactic tribological preparations is carried out. The mechanism of boehmite action during the running-in of a diesel engine and a drilling rig gearbox is considered.
A V Fedotov   +3 more
openaire   +1 more source

Flower-like boehmite nanopowders obtained at low temperature from Bayer liquor [PDF]

open access: yesProcessing and Application of Ceramics, 2020
Boehmite nanocrystalline powders were obtained by neutralization of Bayer liquor at 70 °C with addition of glucose. Temperature of the neutralization induced formation of the flower-like morphology of the nanopowders.
Marija Milanović   +3 more
doaj   +1 more source

Surface and porosity of nanocrystalline boehmite xerogels [PDF]

open access: yesJournal of Colloid and Interface Science, 2005
Boehmite xerogels are prepared by hydrolysis of Al(OC4H9)3 followed by peptization with HNO3 (H+/Al = 0, 0.07, 0.2). XRD and TEM show that these gels are made of nanosized crystals (5-9 nm in width and 3 nm thick). According to the amount of acid, no significant differences are found in size and shape, but only in the spatial arrangement of the ...
Alphonse, Pierre, Courty, Matthieu
openaire   +4 more sources

Home - About - Disclaimer - Privacy