Results 21 to 30 of about 26,937 (306)

Total hip arthroplasty following failure of tantalum rod implantation for osteonecrosis of the femoral head with 5- to 10-year follow-up

open access: yesBMC Musculoskeletal Disorders, 2018
Background Total hip arthroplasty (THA) with failure of tantalum rod implant for osteonecrosis of the femoral head (ONFH) will be the only choice for patients.
Qi Cheng   +6 more
doaj   +1 more source

Progress of Niobium and Tantalum Analytical Technology

open access: yesYankuang ceshi, 2018
As strategic emerging mineral resources supported by the state, niobium and tantalum are the functional and structural materials needed for the development of emerging industries.
LI Gang   +5 more
doaj   +1 more source

Preparation of Ni–MgO core-shell nano powders

open access: yesFenmo yejin jishu
Nickel nanopowders coated by magnesium oxide used for inner electrode of multilayer ceramic capacitor (MLCC) were prepared by coating thermal decomposition sintering method.
GUO Shun   +4 more
doaj   +1 more source

Tracking tantalum stocks and flows in China from 2000 to 2021: A material flow analysis

open access: yesHeliyon
Tantalum is not only one of the critical metals applied in various advanced industries such as electronics, aerospace, military, and medical applications, but also is considered a conflict mineral, posing a threat to its global supply security.
Zhen Gao   +4 more
doaj   +1 more source

Porous tantalum scaffolds: Fabrication, structure, properties, and orthopedic applications

open access: yesMaterials & Design, 2021
Porous tantalum scaffolds have been developed and clinically utilized as superior implantable biomaterials for orthopedic applications owing to their exceptional corrosion resistance, biocompatibility, osteointegration, and osteoconductivity.
Hairui Gao   +11 more
doaj   +1 more source

High-temperature antioxidant silicate coating of low-density Nb–Ti–Al alloy: A review

open access: yesHigh Temperature Materials and Processes
Nb–Ti–Al base alloy is an important structural material with low density and high temperature. However, as with other niobium alloys, the weak oxidation resistance is the bottleneck of its engineering application. Surface coating technology is considered
Tang Xiaohuan   +5 more
doaj   +1 more source

Synthesis of coral-like tantalum oxide films via anodization in mixed organic-inorganic electrolytes. [PDF]

open access: yesPLoS ONE, 2013
We report a simple method to fabricate nano-porous tantalum oxide films via anodization with Ta foils as the anode at room temperature. A mixture of ethylene glycol, phosphoric acid, NH4F and H2O was used as the electrolyte where the nano-porous tantalum
Hongbin Yu   +5 more
doaj   +1 more source

Tantalum-Catalyzed Amidation of Amino Acid Homologues

open access: yes, 2019
A tantalum-catalyzed solvent-free approach for the construction of amide bonds with 1-(trimethylsilyl)­imidazole is developed, and the mild reaction conditions are applicable to a wide variety of electrophilic amino acid homologues.
Wataru Muramatsu (1633348)   +1 more
core   +1 more source

Conversion of carboxylic acids to amides under the action of tantalum(V) chloride

open access: yes, 2021
It was found that the reaction of aliphatic carboxylic acids with secondary amines under the action of tantalum (V) chloride leads to the selective formation of carboxamides.
Aliya, Amirova   +5 more
core   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

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