Results 31 to 40 of about 16,935 (310)

Effect of cathodic arc plasma deposition on shear bond strength between palladium cobalt chromium coated with titanium nitride and titanium aluminium nitride with ceramic

open access: yesContemporary Clinical Dentistry, 2021
Background: The success of esthetic ceramo-metal restoration is strongly influenced by its bond strength. The success of ceramo-metal restoration is subjective to its bond strength.
Vaishnavi Prabhakar   +2 more
doaj   +1 more source

Use of melamine in the nitridation of aluminum oxide to aluminum nitride

open access: yesJournal of the Ceramic Society of Japan, 2011
By using melamine as a nitridizing reagent, aluminum nitride (AlN) powders were prepared from δ- and α-alumina (Al2O3) powders which had not been mixed with carbon. The hydrogen cyanide (HCN) formed by thermal decomposition of melamine was involved in the nitridation of Al2O3 to AlN.
openaire   +2 more sources

Nonoxide Sol-Gel Synthesis of Terbium-Doped Silicon Nitride Phosphors

open access: yes, 2009
Exposure of solutions of Tb(N(SiMe3)2)3 with SiCl(NEt2)3 in tetrahydrofuran to dry ammonia results in polymeric xerogels. Heating these gels in ammonia leads to amorphous Tb:SiNx phosphors that exhibit bright green luminescence under UV irradiation.
Hector, Andrew L.   +3 more
core   +1 more source

Synthesis of Aluminum Nitride Using Sodium Aluminate as Aluminum Source

open access: yes, 2023
At present, the carbothermal reduction and nitridation process is an important method for the large-scale preparation of aluminum nitride powder in industry, but the tremendous energy consumption caused by long-term high temperatures seriously restricts ...
Bo Ren   +5 more
core   +1 more source

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

open access: yesAdvanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver   +9 more
wiley   +1 more source

Use of high-thermal conductive aluminum nitride based ceramics in vacuum UHF electronic devices [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2013
Analysis of properties and characteristics of the alumina, beryllium oxide and aluminum nitride based ceramic materials used in UHF electronic devices has been made.
Chasnyk V. I.
doaj  

Static High Voltage Actuation of Piezoelectric AlN and AlScN Based Scanning Micromirrors

open access: yesMicromachines, 2022
Piezoelectric micromirrors with aluminum nitride (AlN) and aluminum scandium nitride (Al0.68Sc0.32N) are presented and compared regarding their static deflection.
Chris Stoeckel   +7 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Boron-nitride and aluminum-nitride “Pringles” and flapping motion

open access: yesChem. Commun., 2014
Boron-nitride and aluminum-nitride “Pringles”: flexible structures in solution with flapping motion.
Wei, Fa, Shuang, Chen, Xiao Cheng, Zeng
openaire   +3 more sources

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

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