Results 31 to 40 of about 2,056 (126)

Geochemical Compositions of Size‐Fractioned Sediment Samples From the Yangtze and Yellow Rivers: Implications for Chemical Weathering, Fractionation Behavior of Provenance Tracers, and Sources of Radial Sand Ridges

Geochemistry, Geophysics, Geosystems, 2023
River sediments are valuable archives of the environmental conditions within their catchments. The Yangtze and Yellow Rivers are the most active fluvial systems for sediment transport in East Asia, and they are regarded as potential sediment sources for ...
Chao Wu, Yang Wu, Xiaoxiao Yu, Yiwei Chen, Weiguo Zhang, Jie Liu, Gangjian Wei   +6 more
doaj   +1 more source

Developing a variable charge potential for Hf/Nb/Ta/Ti/Zr/O system via machine learning global optimization

Materials & Design, 2023
Despite widespread attentions on the HfNbTaTiZr refractory high-entropy alloy (RHEA) owing to various exceptional properties, insights into nanostructure-property relations are severely hindered by the lack of reliable interatomic potentials in atomistic
Yihan Wu, Wenshan Yu, Shengping Shen
doaj   +1 more source

Hydrogenetic, Diagenetic and Hydrothermal Processes Forming Ferromanganese Crusts in the Canary Island Seamounts and Their Influence in the Metal Recovery Rate with Hydrometallurgical Methods [PDF]

, 2019
Four pure hydrogenetic, mixed hydrogenetic-diagenetic and hydrogenetic-hydrothermal Fe-Mn Crusts from the Canary Islands Seamount Province have been studied by Micro X-Ray Diffraction, Raman and Fourier-transform infrared spectroscopy together with high ...
González, Francisco Javier, Kuhn, Thomas, Lunar Hernández, Rosario, Madureira, Pedro, Marino, Egidio, Medialdea, Teresa, Miguel, Catarina, Mirao, Jose, Oeser, Martin, Reyes Andrés, Jesús, Somoza Losada, Luis, Wegorzewski, Anna V.   +11 more
core   +5 more sources

Comparing the Tribological Properties of the Coatings (Ti-Hf-Zr-V-Nb-Ta)N and (Ti-Hf-Zr-V-Nb-Ta)N + DLC [PDF]

Журнал нано- та електронної фізики, 2015
The paper compares the tribological characteristics of the coatings (Ti-Hf-Zr-V-Nb-Ta)N and (Ti-Hf-Zr-V-Nb-Ta)N + DLC obtained by means of vacuum-arc deposition method.
U.S. Nyemchenko, V.M. Beresnev, V.F. Gorban, V.Ju. Novikov, O.V. Yaremenko   +4 more
doaj  

COMPOSITIONAL FEATURES AND AGE OF ALKALINE GRANITES OF THE INGUR MASSIF, WESTERN TRANS-BAIKAL AREA

Геодинамика и тектонофизика, 2022
The Ingur alkaline granite massif and the associated Zr-Nb occurrence make up part of the largest Mongolian-Trans-Baikal alkaline granitoid provinces. The massif is composed of arfvedsonite, biotite, and alaskite granites. High content of HREE determines
M. V. Rampilova, M. O. Rampilov, I. A. Izbrodin   +2 more
doaj   +1 more source

Computational screening study of double transition metal carbonitrides M′2M″CNO2-MXene as catalysts for hydrogen evolution reaction

npj Computational Materials, 2021
Two-dimensional (2D) transition metal carbonitrides (MXene) have attracted growing interest in electrocatalytic hydrogen production due to its structural and electronic properties.
Zhoulan Zeng, Xingzhu Chen, Kaiyi Weng, Yang Wu, Peng Zhang, Jizhou Jiang, Neng Li   +6 more
doaj   +1 more source

A method for locating ore bodies by geochemical indexes of pegmatite-type lithium deposits in the Ke'eryin area, western Sichuan, China

Dizhi lixue xuebao, 2022
The Ke'eryin area in Sichuan province is one of the large rare metal ore concentration areas in the Songpan–Garze metallogenic belt. Numerous granite pegmatite dikes spread around the Ke'eryin mass.
TANG Wenchun, DUAN Wei, ZOU Lin, YANG Guibing, ZHANG Wei, XIONG Guan   +5 more
doaj   +1 more source

Geochemical and mineralogical investigations of fine growth structures of ferromanganese nodules from the Clarion and Clipperton Zone, Pacific Ocean [PDF]

, 2015
[no ...
Wegorzewski, Anna Viktoria
core   +2 more sources

Nb- and Ta-doped (Hf,Zr,Ti)C multicomponent carbides with enhanced oxidation resistance at 2500 °C

Journal of Advanced Ceramics
Enhancing oxidation resistance of multicomponent carbides above 2000 ℃ is critical for their thermal protection applications. For this purpose, novel Nb- and Ta-doped (Hf,Zr,Ti)C multicomponent carbides were designed to improve their oxidation resistance
Shiyan Chen, Jinming Wang, Zhaoke Chen, Weilong Song, Yi Zeng, Xingchao Li, Tongqi Li, Xiang Xiong   +7 more
doaj   +1 more source

Late Paleozoic tectonics of Southern Central Asian orogenic belt: Evidence from magmatic rocks in the northern Alxa, Northwest China

Frontiers in Earth Science, 2023
Late Paleozoic magmatic rock outcrops are common in the Northern Alxa, Southern Central Asian Orogenic Belt (CAOB), which is a key area for understanding tectonic processes and defining the final closure time of the Paleo-Asian Ocean (PAO).
Er-Teng Wang, Xin-Wei Zhai, Wan-Feng Chen, Zhen Ma, Lei Wu, Zhi-Ang Guo, Yun Wang, Gao-Rui Song, Jin-Rong Wang   +8 more
doaj   +1 more source