Results 101 to 110 of about 149,288 (320)

Microwave inductance of thin metal strips

, 2010
We have measured the frequency-dependent, complex impedance of thin metal strips in a broad range of microwave frequencies (45~MHz to 20~GHz). The spectra are in good agreement with theoretical predictions of an RCL model. The resistance, inductance, and
Dressel, Martin, Scheffler, Marc, Steinberg, Katrin   +2 more
core   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Shear properties of the sapphire/ interlayer / TC4 alloy brazed joints using Ag-Cu-Ti filler metals

Hanjie xuebao
Ceramic/metal brazing connection faces problems such as poor wetting of the ceramic surface by brazing metal and difficulty in alleviating the residual stress of joints.
Quanming LIU, Junfeng XIAO, Wenshu TANG, Song GAO, Huawei SUN, Weimin LONG   +5 more
doaj   +1 more source

Central mode and soft mode behavior in PbMg1/Nb2/3O3 relaxor ferroelectric

, 2004
The relaxor ferroelectric PbMg1/Nb2/3O3 was investigated by means of broad-band dielectric and Fourier Transform Infrared (FTIR) transmission spectroscopy in the frequency range from 1 MHz to 15 THz at temperatures between 20 and 900 K using PMN films on
Bovtun, V., Brinkman, K., Kamba, S., Kempa, M., Petzelt, J., Setter, N.   +5 more
core   +1 more source

Laser machining sapphire via Si-sapphire interface absorption and process optimization using an integrated approach of the Taguchi method with grey relational analysis

, 2023
Ali Naderi, Yongling Wu, Liyong Wang, Zhiwen Wang, Hongyu Zheng   +4 more
openalex   +1 more source

MBE grown preferentially oriented CdMgO alloy on m- and c-plane sapphire substrates [PDF]

, 2022
Abinash Adhikari, Anastasiia Lysak, A. Wierzbicka, P. Sybilski, A. Reszka, B.S. Witkowski, E. Przeździecka   +6 more
openalex   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

A Review of AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes on Sapphire

Applied Sciences, 2018
This paper reviews the progress of AlGaN-based deep-ultraviolet (DUV) light emitting diodes (LEDs), mainly focusing in the work of the authors’ group.
Yosuke Nagasawa, Akira Hirano
doaj   +1 more source

Possible origins and ages for sapphire and diamond from the central Queensland gem fields [PDF]

, 1992
Allan Douglas Cowie Robertson, F L Sutherland   +1 more
openalex   +1 more source

Archeo‐Inspiration from the Cultural History of Glass: Historic Accounts, Anecdotes and Hard Facts as Challenges to Modern Material Science

Advanced Materials, EarlyView.
Glass, historically valued for its purity and durability, has long inspired artists and societies. This article introduces the concept of “Archeo‐Inspiration”, drawing on cultural and historical contexts of glass to guide future material innovations.
Eva von Contzen, Julia von Ditfurth, Fabian Stroth, Bastian E. Rapp   +3 more
wiley   +1 more source