Results 21 to 30 of about 110,435 (294)

Substituting a copper atom modifies the melting of aluminum clusters [PDF]

open access: yesThe Journal of Chemical Physics, 2008
Heat capacities have been measured for Aln−1Cu− clusters (n=49–62) and compared with results for pure Aln+ clusters. Aln−1Cu− and Aln+ have the same number of atoms and the same number of valence electrons (excluding the copper d electrons). Both clusters show peaks in their heat capacities that can be attributed to melting transitions; however ...
Baopeng, Cao   +6 more
openaire   +2 more sources

Effects of aluminum on hydrogen solubility and diffusion in deformed Fe-Mn alloys [PDF]

open access: yes, 2016
We discuss hydrogen diffusion and solubility in aluminum alloyed Fe-Mn alloys. The systems of interest are subjected to tetragonal and isotropic deformations. Based on ab initio modelling, we calculate solution energies, then employ Oriani's theory which
Dang, S.   +4 more
core   +4 more sources

Exploring the Na+ Locations and Al Distributions in SSZ-39 Zeolite by Solid-State NMR Spectroscopy and DFT Calculations

open access: yesChinese Journal of Magnetic Resonance, 2021
The catalytic performance of zeolite SSZ-39 with AEI structure is significantly affected by the locations of its extra-framework cation and aluminum distributions.
Han-di CHEN   +3 more
doaj   +1 more source

Investigation on tourmaline occurrence in the metamorphic complex in the north of Golpayegan, Sanandaj-Sirjan Zone [PDF]

open access: yesپترولوژی, 2022
The occurrence of tourmaline in the metamorphic complex of the north of Golpayegan is observed within the granitoid mass and schists in contact with granitoid and marbles.Speaking of abundance, tourmaline is less frequently a minor mineral found in ...
Solomon Ahmadi Bonakdar   +2 more
doaj   +1 more source

Viscosities of melts in the Na2O---FeO---Fe2O3---SiO2 system and factors controlling relative viscosities of fully polymerized silicate melts [PDF]

open access: yes, 1988
Na2O---B2O3---SiO2 and Na2O-Ga2O3 viscosities decrease in the order aluminosilicate > ferrosilicate, (galliosilicate ?) > borosilicate. Thp electronegativities of the trivalent cations are inversely correlated with the relative viscosities of melts in ...
Dingwell, Donald B., Virgo, David
core   +1 more source

Density functional study of copper segregation in aluminum [PDF]

open access: yes, 2011
The structural and electronic properties of Cu segregation in aluminum are studied in the framework of the density functional theory, within the projector augmented plane-wave method and both its local density approximation (LDA) and generalized gradient
Benali, Anouar   +2 more
core   +5 more sources

Calcium phosphate: a substitute for aluminum adjuvants?

open access: yesExpert Review of Vaccines, 2016
Calcium phosphate was used as an adjuvant in France in diphtheria, tetanus, pertussis and poliomyelitis vaccines. It was later completely substituted by alum salts in the late 80's, but it still remains as an approved adjuvant for the World Health Organization for human vaccination.
Jean-Daniel Masson   +3 more
openaire   +3 more sources

The substitution of aluminum for cobalt in nanostructured bainitic steels [PDF]

open access: yesAIP Conference Proceedings, 2018
Two kinds of new steels are designed, in which the only difference is the use of the alloy element aluminum instead of cobalt. The effect of cobalt and aluminum addition on the microstructure and mechanical properties of high-carbon nanostructured bainitic steels was studied. The microstructure and mechanical properties achieved by a low temperature au
Jing Yang   +4 more
openaire   +1 more source

Carbon Emissions Constrained Energy Planning for Aluminum Products

open access: yesEnergies, 2020
The production of primary aluminum is an energy-intensive industry which produces large amounts of direct and indirect greenhouse gas emissions, especially from electricity consumption.
Rok Gomilšek   +4 more
doaj   +1 more source

High temperature elastic anisotropy of the perovskite and post-perovskite polymorphs of Al2O3 [PDF]

open access: yes, 2005
Finite temperature ab initio molecular dynamics calculations were performed to determine the high temperature elastic and seismic properties of the perovskite and post-perovskite phases of pure end-member Al2O3.
Brodholt, JP, Price, GD, Stackhouse, S
core   +1 more source

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