Results 91 to 100 of about 399,544 (300)
Advanced Functional Materials, EarlyView.This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous
Mingfeng Xu +5 more
wiley +1 more source
Small StructuresDiamond‐based subwavelength antireflective microstructures are corrosion resistant, impact resistant, and possess high transmittance, thereby presenting broad application prospects in special optical windows.
He Cao +12 more
doaj +1 more source
Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications
Advanced Functional Materials, EarlyView.Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai +8 more
wiley +1 more source
The Black Diamonds of Bahia (Carbonados) and the Building of Euro-America: A Half-century Supply Monopoly (1880s-1930s) [PDF]
, 2013 This paper traces the birth, maturity and decline of what was Bahia’s natural supply monopoly of black or industrial diamonds: first used in polishing materials (for consumption); then in drilling; and by 1940 they were employed in making parts for the ...
Herold, Marc W.
core +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Synchrotron Radiation for Quantum Technology
Advanced Functional Materials, EarlyView.Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader +10 more
wiley +1 more source
MORPHOLOGY OF DIAMONDS DISSOLVED IN THE Fe-S MELT AT DIFFERENT SULFUR CONTENTS
Известия высших учебных заведений: Геология и разведка, 2018 An experimental study of the process of the dissolution of diamonds in a sulfur-containing iron melt with different contents of sulfur (10, 15, 20, 25, 30 wt. %) at 3,5 GPa and 1400°C has been carried out.
V. M. SONIN +3 more
doaj +1 more source
Auctioning Rough Diamonds: A Competitive Sales Process for BHP Billiton’s Ekati Diamonds [PDF]
We describe a new approach for selling rough diamonds through competitive auctions. The classical approach of De Beers—giving each customer a bag of stones and a take-it-or-leave-it price—worked well in near monopoly circumstances, but is ill-suited for ...
Peter Cramton +2 more
core
Understanding diamond pricing using unconditional quantile regressions [PDF]
, 2013 This paper investigates the relationship between the selling price of diamonds and their weight in carats. For this purpose, we use a unique sample of 112,080 certified diamonds collected from www.info-diamond.com during the first week of July 2011.
Vaillant, Nicolas G. +1 more
core +1 more source
Ionized Nitrogen Mono-hydride Bands are Identified in the Pre-solar and Carbonado Diamond Spectra
, 2011 None of the well established Nitrogen related IR absorption bands, common in synthetic and terrestrial diamonds, have been identified in the pre-solar diamond spectra.
Adams +33 more
core +1 more source