Results 71 to 80 of about 2,345 (276)

Automated Extraction of Multicomponent Alloy Data Using Large Language Models for Sustainable Design

open access: yesAdvanced Science, EarlyView.
A large language model (LLM) based pipeline is developed to automatically extract a comprehensive and accurate multicomponent alloy database from literature corpus. The extracted dataset is integrated with sustainability indicators to identify potential alloys that outperform existing industrial benchmark materials in terms of both performance and ...
Aravindan Kamatchi Sundaram   +4 more
wiley   +1 more source

Fibrous Growth of Niobium Carbide and Niobium Nitride by Discharge Method

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1971
炭化ニオブおよび窒化ニオブ繊維を五塩化ニオブ, 水素, アルゴン, プロパンまたは窒素混合気中より放電を利用して成長させる条件について検討した。放電電流および交流周波数はそれぞれ 0.05~3.OmAおよび60Hzとした。繊維の成長にさいして極間距離を一定に保つように電極を移動した。成長速度は主として放電電流に関係して, 0.05~0.1mAのとき最大の成長速度約 30mm/minを示し, 繊維の直径は最小値7~13μを示した。最適の反応器温度およびアルゴン濃度はそれぞれ 400℃および 80~90vol% であることがわかった。五塩化ニオブ, プロパンまたは窒素濃度は成長した繊維の組成に影響を与え, 食塩型構造の金属相を含まない炭化ニオブおよび窒化ニオブはそれぞれプロパン濃度 0.9vol ...
Takehiko TAKAHASHI   +2 more
openaire   +2 more sources

Soldabilidade de aço ao Nb a arco submerso em altas velocidades com consumíveis nacionais [PDF]

open access: yes, 1982
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.
Scotti, Américo
core  

Unlocking Strength‐Toughness Dilemma in High‐Entropy Borides by Intragranular Microstructural Reconstruction

open access: yesAdvanced Science, EarlyView.
An extreme non‐equilibrium process combining heavy direct current sintering and TiSi2 addition is used to construct intragranular energy dissipation units within high‐entropy boride ceramics to overcome the strength‐toughness trade‐off. The resulting ceramic demonstrates attractive mechanical properties with a flexural strength of 887 MPa and a ...
Yingjun Liu   +13 more
wiley   +1 more source

Comparative analysis of niobium and vanadium carbide efficiency in the high energy mechanical milling of aluminum bronze alloy

open access: yesREM: International Engineering Journal
This study aims to analyze the efficiency of niobium and vanadium carbides in the high energy mechanical milling of aluminum bronze alloy. Two series of experiments were made following the same steps for both niobium carbide (NbC) and vanadium carbide ...
Alexandre Nogueira Ottoboni Dias   +5 more
doaj   +1 more source

Microstructure and mechanical properties of WC-Co reinforced with NbC

open access: yesMaterials Research, 2004
Cemented carbides such as tungsten carbide-cobalt WC-Co composites have been widely used as cutting tool materials. Several reports have shown the influence of different factors such as grain size, type and amount of binder phase and the addition of hard
Wilson Acchar   +2 more
doaj   +1 more source

A Review of Failure Modes and Safety Strategies of Lithium‐Ion Batteries from Materials to Systems

open access: yesAdvanced Science, EarlyView.
A cascade‐aware framework is presented for lithium‐ion battery safety, linking thermal runaway initiation, acceleration, runaway reaction, and propagation with material‐, cell/pack‐, and system‐level interventions. By integrating failure mechanisms, quantitative safety indicators, and staged interception strategies, this review highlights how safer ...
Jin Hyeok Yang   +8 more
wiley   +1 more source

Enhancement of hardness in niobium carbide composites

open access: yes, 2022
S.522-532Traditional cemented carbides are based on tungsten carbide (WC). Among alternative hard phases niobium carbide (NbC) shows high potential.
Vornberger, A.   +2 more
core  

Enhanced Mechanical Properties Via Boron‐Induced Multi‐Mechanism Strengthening in (NbTaTi1.5V)100‐xBx Refractory High Entropy Alloys

open access: yesAdvanced Science, EarlyView.
A trace amount of boron is introduced into NbTaTi1.5V RHEA, forming a finegrained BCC+TiO+TiB microstructure. The TiB phase generates numerous dislocations, strengthening the alloy. The alloy exhibits 3610 MPa compressive fracture strength and 1060 HV microhardness, while retaining 14.8% fracture strain.
Da Wu   +9 more
wiley   +1 more source

Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu   +5 more
wiley   +1 more source

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