Results 41 to 50 of about 1,035,856 (262)

Effect of alloyed Lu, Hf and Cr on the oxidation and spallation behavior of NiAl [PDF]

Corrosion Science, 2017
The influences of alloyed Lu, Hf and Cr on the oxidation and spallation behavior of NiAl were investigated. Although Lu has a “block effect” of Al as Hf does, the oxidation rate of Lu-doped NiAl is significantly higher, due to: (1) inhibitation of θ- to α-Al2O3 transformation in early oxidation stage; (2) stronger scale grain refinement effect and ...
Zhao, Chunshan, Zhou, Yuhua, Zou, Zhonghua, Luo, Lirong, Zhao, Xiaofeng, Guo, Fangwei, Xiao, Ping   +6 more
openaire   +3 more sources

Research Progress in situ Hf Isotopic Analysis of Oxide-type U-bearing Accessory Minerals

Yankuang ceshi, 2022
BACKGROUND In recent years, the in situ Hf isotopic determination method of zircon has been widely used in isotopic geochemistry, and has become an important method to explore the genesis of rocks, the source of ore-forming materials and the evolution of
CUI Yurong, XIAO Zhibin, TU Jiarun, ZHOU Hongying, LI Guozhan   +4 more
doaj   +1 more source

Study of hyperfine interactions in spinel cobalt ferrite CoFe2O4 doped with Hf, Lu, and Yb using Mössbauer spectroscopy and perturbed γ-γ angular correlation

Конденсированные среды и межфазные границы
We studied hyperfine interactions (HFI) in spinel cobalt ferrite (ferrospinel) CoFe2O4 doped with Lu, Yb, and Hf (1 wt. %) by Mössbauer spectroscopy (MS) on 57Fe nuclei.
Viktor M. Vakhtel, Atanas I. Velichkov, Dimitar V. Karaivanov, Maria M. Milanova, Yuri G. Segal, Nargiza Temerbulatova, Dmitry V. Filosofov, Martin P. Tsvetkov   +7 more
doaj   +1 more source

Constraints on Martian Chronology from Meteorites

Geosciences, 2020
Martian meteorites provide the only direct constraints on the timing of Martian accretion, core formation, magmatic differentiation, and ongoing volcanism. While many radiogenic isotope chronometers have been applied to a wide variety of Martian samples,
Zoltán Váci, Carl Agee
doaj   +1 more source

Insights into the tectonic evolution of the Svecofennian orogeny based on in situ Lu–Hf dating of garnet and apatite from Olkiluoto, southwestern Finland [PDF]

Solid Earth
The southern Finland granites and associated migmatitic rocks have a complex metamorphic history, being affected by multiple events during the ca. 1.88–1.79 Ga Svecofennian orogeny.
J. Engström, J. Engström, K. Cutts, S. Glorie, E. Heilimo, E. M. Jolis, R. M. Michallik   +6 more
doaj   +1 more source

Identification of the early cretaceous granitic pluton and tectonic implications in the middle gangdese belt, southern tibet

Frontiers in Earth Science, 2022
The Gangdese magmatic belt of southern Tibet is an ideal place to study Neo-Tethyan subduction, continental crustal growth and reworking. However, there are still controversies with regard to the evolution of the Neo-Tethys Ocean, the magma source and ...
Qingling Wang, Yuanku Meng, Yuanku Meng, Youqing Wei, Li Jiang, Zhenzhen Wang, Guangzhou Mao   +6 more
doaj   +1 more source

OneDZ: a global detrital zircon database and implications for constructing giant geoscience database [PDF]

Earth System Science Data
The amount of detrital zircon U-Pb geochronology data and Lu-Hf isotopic data has doubled in the past two decades with the continuous improvement of analytical methods, and has developed into the most closely integrated research field in earth science ...
K. Li, X. Hu, R. Chai, J. Yang, W. Xue, Y. Pan, T. Li, C. Fang, A. Ma, H. Huang, H. Huang, Q. Guo, W. Yang, L. Hu, L. Qi, L. Qi, G. Chen, G. Sun, S. Zhang, T. Deng, K. Li, K. Li, J. Sun, B. Gao   +23 more
doaj   +1 more source

REPLY TO COMMENTS FROM S.G. SKUBLOV, A.V. BEREZIN, AND L.I. SALIMGARAEVA ON THE ARTICLE AUTHORED BY M.V. MINTS AND K.A. DOKUKINA – THE BELOMORIAN ECLOGITE PROVINCE (EASTERN FENNOSCANDIAN SHIELD, RUSSIA): MESO-NEOARCHEAN OR LATE PALEOPROTEROZOIC?

Геодинамика и тектонофизика, 2021
In their research, the authors of the comments have focused on the Late Paleoproterozoic rims of zircons, but ignored many important details of their own data. Their comments are based on a misconception that eclogite zircons have unique geochemical (REE,
M. V. Mints, K. A. Dokukina
doaj   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

High‐Entropy Ceramic‐Enhanced Deformable Triboelectric Nanogenerator for Noncontact Biomechanical and Raindrop Energy Harvesting

Advanced Materials, EarlyView.
A large‐area, deformable high‐entropy‐ceramic (HEC)‐doped triboelectric nanogenerator with a trilayer architecture is developed, consisting of an HEC‐doped triboelectric layer, a graphite‐like textile charge‐storage layer, and stretchable carbon black electrodes.
Shengyou Li, Wei‐Chen Peng, Syun‐Hong Chou, Zhi‐Xian Yan, Jiann‐Yeu Chen, Dun‐Jie Jhan, Wei‐Chun Yang, Shi‐Hong Chen, Yi‐Lin Huang, Cheng‐Hung Tsai, Ming‐Yen Lu, Heng‐Jui Liu, Cheolmin Park, Ying‐Chih Lai   +13 more
wiley   +1 more source