Results 61 to 70 of about 2,032 (202)
Phase Formation Features in the Metallothermal Reduction of Natural Coltan
MetalsPhase formation characteristics during the thermochemical reduction of metals from natural coltan using aluminum and calcium–aluminum alloy at 1400–1450 °C were investigated to develop methods for extracting niobium and tantalum from rare metal raw ...
Kirill V. Pikulin +5 more
doaj +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The monoclinic CuNb2O6 (M‐CNO) with a columbite structure is a potential anode candidate for advanced lithium‐ion capacitors (LICs). However, its practical application is plagued seriously by the irreversible phase transformation and sluggish kinetics.
Xu‐Ting Li +6 more
wiley +1 more source
Zaštita MaterijalaAB2O6 Oxides have recently attracted significant attention these days due to their exclusive properties. These compounds exhibit a variety of structural forms with diverse characteristics.
Ruby Jindal +3 more
doaj +1 more source
Intramodal stimulated Brillouin scattering in suspended AlN waveguides
Nanophotonics, Volume 14, Issue 27, Page 5095-5104, December 2025.Abstract Aluminum nitride (AlN), a wide‐bandgap III–V material, offers excellent transparency in the optical communication band and a favorable refractive index for strong optical confinement, making it a promising platform in stimulated Brillouin scattering (SBS).
Han Xue +5 more
wiley +1 more source
Wafer‐scale integration of photonic integrated circuits and atomic vapor cells
Nanophotonics, Volume 14, Issue 27, Page 5545-5554, December 2025.Abstract Atom‐based technologies have played a central role in both fundamental research and application‐driven developments. For example, devices such as atomic clocks and magnetometers are essential for precision time‐keeping, navigation, and sensing.
Arieh Grosman +4 more
wiley +1 more source
Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions
Journal of Raman Spectroscopy, Volume 56, Issue 11, Page 1418-1433, November 2025.Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong +5 more
wiley +1 more source
European Journal of Inorganic Chemistry, Volume 28, Issue 30, October 22, 2025.As the reduction of transition metal oxides by coal poses a significant climate risk, the use of alternative reducing agents such as hydrogen is becoming increasingly important. This review summarizes the current knowledge of the reduction pathways of transition metal oxides from groups 6 to 8.
Michael Häger +2 more
wiley +1 more source
Discovery of columbite in the environs of limoges [PDF]
The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Sciencen ...
openaire +2 more sources
Synthesis of Metastable Wurtzite Cu–in‐Doped ZnS Photocatalysts via Molten Salt Treatment
European Journal of Inorganic Chemistry, Volume 28, Issue 23, August 26, 2025.Cu–In‐doped ZnS precursors consisting of low‐crystallinity agglomerates are transformed into either metastable wurtzite‐phase nanoparticles or stable zincblende‐phase microparticles via molten NaCl–CaCl2 treatment by controlling the heating hold time.
Tomohiro Kawase +2 more
wiley +1 more source