Results 21 to 30 of about 293,660 (340)

Hepta-Zr-Incorporated Polyoxometalate Assembly

open access: yes, 2022
Driven by the synergistic-directing effect of the lacunary fragments, [B-α-GeW9O34]10– and [B-α-GeW11O39]8–, an unprecedented hepta-Zr-substituted polyoxometalate (POM) assembly K2Na6H10(Hpy)3[SbZr7O6(OH)4(B-α-GeW9O34)2(B-α-GeW11O39)2]·28H2O (1) was made
Guo-Yu Yang (1728175)   +3 more
core   +1 more source

The existing forms of Zr in Mg-Zn-Zr magnesium alloys and its grain refinement mechanism

open access: yesMaterials Research Express, 2021
The formation of the Zr-containing phases during the solidification of Mg-Zn-Zr alloy is simulated, the structure of the Zr-containing compounds and the solid solution amount of Zr in α -Mg solid solution as well as the grain size of the as-cast alloy ...
Fangjing Xing   +4 more
doaj   +1 more source

Insights into Poisoning Mechanism of Zr by First Principle Calculation on Adhesion Work and Adsorption Energy between TiB2, Al3Ti, and Al3Zr

open access: yesMetals, 2022
Al-Ti-B intermediate alloys are widely used as grain refiners in aluminum alloys owing to the presence of Al3Ti and TiB2 phases. However, the existence of Zr in aluminum alloy melts often results in coarse grain size, leading to Al-Ti-B failure called Zr
Jianqiang Wu   +7 more
doaj   +1 more source

Design and fabrication of Ti-Zr-Hf-Cr-Mo and Ti-Zr-Hf-Co-Cr-Mo high-entropy alloys as metallic biomaterials.

open access: yesMaterials Science and Engineering C: Materials for Biological Applications, 2020
Novel TiZrHfCr0.2Mo and TiZrHfCo0.07Cr0.07Mo high-entropy alloys for metallic biomaterials (bio-HEAs) were developed based on the combination of Ti-Nb-Ta-Zr-Mo alloy system and Co-Cr-Mo alloy system as commercially-used metallic biomaterials. Ti-Zr-Hf-Cr-
T. Nagase   +4 more
semanticscholar   +1 more source

Line Saturation Thickness Calculation for Zirconium and Hafnium in Zircon Sand Samples and Its Application

open access: yesYankuang ceshi, 2014
For the determination of Zr in Zircon sand, the spectral line of Zr is mainly used. However, the spectral line of Zr Kα does not reach the saturation thickness for the fused bead, which leads to poor linearity and large errors in the results.
LI Xiao-Li   +3 more
doaj   +2 more sources

Coin-Cell-Based In Situ Characterization Techniques for Li-Ion Batteries

open access: yesFrontiers in Energy Research, 2018
In situ characterization techniques have made a significant progress in recent years, especially in the electrochemical field. For Li-ion batteries, in situ characterization techniques refer to using analytical equipment to directly characterize ...
Liao Zhang   +10 more
doaj   +1 more source

Interdiffusion in Zr-Mo/W Intermetallics

open access: yesApplied Sciences, 2023
Intermetallic compounds or solid solutions can form between Zr and Mo/W, in which the multiphase of the diffusion may be influenced by each other. Interdiffusion kinetic data in such intermetallic systems are highly demanded for material design.
Kaihua Wang   +4 more
doaj   +1 more source

Modification of morphology of thin nickel and zirconium films on naturally oxidized silicon substrates by annealing in vacuum

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics
The article presents a technique for fabricating nickel island films on oxidized silicon substrates by thermal dewetting of continuous coatings. First, continuous nickel films 5 nm thick were deposited by magnetron sputtering.
Nguyen Van Tu Ahn   +2 more
doaj   +1 more source

Effects of Zr Doping into Ceria for the Dry Reforming of Methane over Ni/CeZrO2 Catalysts: In Situ Studies with XRD, XAFS, and AP-XPS

open access: yes, 2020
The methane activation and methane dry reforming reactions were studied and compared over 4 wt % Ni/CeO2 and 4 wt % Ni/CeZrO2 (containing 20 wt % Zr) catalysts.
Feng Zhang   +13 more
semanticscholar   +1 more source

ArcGis-Zr-polygon-model. Thin-section detrital zircon geochronology mitigates bias in provenance investigations

open access: yes, 2021
ArcGis-Zr-polygon-model: This script was automatically generated via ArcGis by exporting the 'ArcGis-Zr-polygon-model'
Christopher L. Kirkland (2842424)   +3 more
core   +1 more source

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