Results 11 to 20 of about 14,028 (253)

Optimization of process parameters and mechanism of strengthening and toughening of Nb-W alloy prepared by chemical vapor deposition based on orthogonal test

open access: yesMaterials Research Express, 2023
In this paper, the chemical vapor deposition (CVD) method was used to prepare Nb-W binary alloys on Mo substrates for the first time. The influences of the process parameters on the composition, average deposition rate, and average deposition efficiency ...
Zhang Mao   +10 more
doaj   +1 more source

Mineral potential modelling for gold mineralization within the Mesozoic depressions in the Central Aldan ore-placer region (on the example of the Upper Yakokut ore field)

open access: yesРуды и металлы, 2022
In this work, we described the patterns of formation and distribution of gold occurrences of various morphological types in the terrigenous sequence of the Upper Yakokutsk graben depression.
Vladimir V. Stolyarenko   +4 more
doaj   +1 more source

A Precious Metal Heist [PDF]

open access: yesCell Host & Microbe, 2009
Nearly all bacterial pathogens require iron to successfully infect their vertebrate hosts. The host molecule lipocalin-2 exploits this by sequestering bacterial siderophores as a mechanism of protection against infection. Raffatellu et al. (2009) show that Salmonella enterica serotype Typhimurium circumvents this through the production of the modified ...
openaire   +2 more sources

Comparative Evaluation of Anti-Corrosion Coatings for NdFeB-Type Magnets with Respect to Performance and Recyclability via Hydrogen-Assisted Recycling (HPMS)

open access: yesMaterials Proceedings, 2021
Various anti-corrosion coatings used on commercially available NdFeB-type magnets were comparatively examined for their durability and suitability for magnet reprocessing by hydrogen-assisted recycling (HPMS).
Carlo Burkhardt   +7 more
doaj   +1 more source

Growth of hafnium dioxide thin films via metal-organic chemical vapor deposition

open access: yesMaterials Research Express, 2021
Metal-organic chemical vapour deposition (MOCVD) is a key technique for depositing thin solid film materials for use in important technological applications.
Yuan Luo   +6 more
doaj   +1 more source

Rh/CeO2+Pt/Ba/Mn/Al2O3 model NSR catalysts: Effect of Rh/Pt weight ratio

open access: yesCatalysis Communications, 2021
A series of model NOx storage-reduction (NSR) catalysts with different Rh/Pt weight ratios were prepared independently by wet impregnation and then mechanically mixed to investigate the effect of the Rh/Pt weight ratio on the overall NOx removal ...
Dezhi Ren   +5 more
doaj   +1 more source

Influence of crystal planes on corrosion behavior of tantalum: Experimental and first-principles study

open access: yesInternational Journal of Electrochemical Science, 2022
In order to improve the corrosion resistance of tantalum coatings produced by chemical vapor deposition (hereinafter referred to as CVD Ta) in various industrial fields, the effect of the texture on the corrosion behavior was investigated.
Yuan Luo   +7 more
doaj   +1 more source

Paleogeotectonic position of the Kyzyk Chadr copper-porphyry ore field (Republic of Tyva)

open access: yesРуды и металлы, 2023
Regional-scale localization conditions of the Kyzyk-Chadr molybdenum-copper porphyry ore field in the southern folded frame of the Siberian Platform are considered.
Starostin I. A.   +2 more
doaj   +1 more source

Processing and properties of high-purity micro-lamellate (NH4)2RuCl6 particles

open access: yesGreen Processing and Synthesis, 2018
(NH4)2RuCl6 is an important precursor in the synthesis of Ru powder with high-purity requirement. In this study, high-purity (>99.999 wt%) micro-sized (NH4)2RuCl6 pieces were synthesized by distillation and precipitation from crude Ru powder.
Xin Zena   +6 more
doaj   +1 more source

Pt-Sb2Te as high speed phase-change materials with excellent thermal stability

open access: yesMaterials Research Express, 2021
Phase change memory (PCM) has been regarded as one of the most promising candidates for the next-generation nonvolatile memory. In this paper, we propose PtSb _2 Te (PST) phase change material for phase change memory.
Zhihao Song   +7 more
doaj   +1 more source

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