Results 71 to 80 of about 972,759 (203)

Materials design workflow for extreme environments via computational method: Transition metal-doped (Hf0.5Ta0.5)C

open access: yesJournal of Materials Research and Technology
The development of materials such as superalloys, ceramics, and composites for use in extreme environments poses major challenges owing to difficulties associated with those environments, including thermal shock and oxidation.
Junyoung Choi   +4 more
doaj   +1 more source

Earth processes cause Zr-Hf and Nb-Ta fractionations, but why and how? [PDF]

open access: yes, 2012
Zr–Hf and Nb–Ta are two elemental twins, each of which has the same valence (i.e. 5+ for Nb and Ta, and 4+ for Zr and Hf) and same ionic size at a given coordination number (e.g.
Niu, Yaoling
core   +1 more source

From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku   +5 more
wiley   +1 more source

Determination of Rare Earth Elements and Nb, Ta, Zr, Hf in Polymetallic Mineral Samples by Inductively Coupled Plasma-Mass Spectrometry Coupled with Open Acid Dissolution and Lithium Metaborate Alkali Fusion

open access: yesYankuang ceshi, 2020
BACKGROUND Mixed acid open acid dissolution and alkali fusion methods are the two main dissolution methods for determination of rare earth and refractory elements in geological samples by inductively coupled plasma-mass spectrometry (ICP-MS).
MEN Qian-ni   +3 more
doaj   +1 more source

Deep Learning–Based Extraction of Promising Material Groups and Common Features from High‐Dimensional Data: A Case of Optical Spectra of Inorganic Crystals

open access: yesAdvanced Intelligent Discovery, EarlyView.
We report a novel interpretation method for deep learning models based on feature extraction and clustering. Applying this method to an atomistic line graph neural network (ALIGNN) model trained on optical absorption spectra of 2,681 inorganic compounds obtained from first‐principles calculations, we successfully identify key factors underlying ...
Akira Takahashi   +3 more
wiley   +1 more source

Accelerating the Discovery of Proton Conducting Electrolytes via Machine Learning‐Enabled Literature Mining

open access: yesAdvanced Intelligent Discovery, EarlyView.
An end‐to‐end knowledge discovery framework is established to automate high‐precision property extraction from small, specialized literature corpora. Utilizing a domain‐specific bidirectional encoder representation from a transformer model and data augmentation, the system accurately extracts and structures electrolyte performance data, ultimately ...
Gaheun Shin   +4 more
wiley   +1 more source

Tectonic discrimination diagrams revisited [PDF]

open access: yes, 2006
The decision boundaries of most tectonic discrimination diagrams are drawn by eye. Discriminant analysis is a statistically more rigorous way to determine the tectonic affinity of oceanic basalts based on their bulk-rock chemistry.
Vermeesch, P, Pieter Vermeesch
core   +1 more source

Functionalized TiO2 Catalysts: Revolutionary Candidate for Low‐Temperature MgH2 and Prospects for Intelligent Integration

open access: yesAdvanced Intelligent Discovery, EarlyView.
Recent advances in TiO2 modification strategies: structure regulation and composite engineering for improved activity and functionality. TiO2 has emerged as a pivotal catalyst for enhancing MgH2, a high‐capacity solid‐state hydrogen storage material, owing to its structural versatility.
Xiaopeng Chu   +10 more
wiley   +1 more source

Research Progress on V2CTx MXene‐Based Composites: Synthetic Strategies, Structure Design, and Multifunctional Applications

open access: yesCarbon Energy, EarlyView.
This review systematically and comprehensively summarizes the latest research progress on V2CTx MXene. Focusing on the structural design strategies, particularly the construction of the V2CTx‐based hetero‐composite structure. Furthermore, widespread applications including electrochemical energy storage and conversion, as well as photocatalytic ...
Wenjun Zhu   +9 more
wiley   +1 more source

Effects of WC Additions on the Phase Formation of (Hf,Nb,Ta,Ti,Zr)C-(Hf,Nb,Ta,Ti,Zr)B2 High Entropy Dual Phase Ceramics [PDF]

open access: yes
High entropy dual phase (Hf,Nb,Ta,Ti,Zr)C-(Hf,Nb,Ta,Ti,Zr)B2 ultra-high temperature ceramics were produced from powders synthesized by boro-carbothermal reduction.
Fahrenholtz, William G.   +2 more
core   +1 more source

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