Results 111 to 120 of about 434,793 (279)

Gas sensors in harsh environments: Challenges and advances in high temperature, high humidity, radiative and corrosive conditions

Journal of Science: Advanced Materials and Devices
Gas sensing in extreme environments is critical for ensuring safety and compliance across various industries, particularly in applications involving high temperatures, high humidity, radiation exposure, and corrosive atmospheres.
Mohammad Fazlul Haque, Seungman Park, Daejong Yang   +2 more
doaj   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source

A Review of Gas-Sensitive Materials for Lithium-Ion Battery Thermal Runaway Monitoring

Molecules
Lithium-ion batteries (LIBs) face the safety hazard of thermal runaway (TR). Gas-sensing-based monitoring is one of the viable warning approaches for batteries during operation, and TR warning using semiconductor gas sensors has garnered widespread ...
Jian Zhang, Zhili Li, Lei Huang
doaj   +1 more source

Environmental gas sensing [PDF]

, 2013
Decomposing materials produce CO2 and CH4. This is true for landfill sites and anaerobic lagoons in waste water treatment plants. These are produced alongside other gasses such as H2S (hydrogen sulphide). The EPA are particularly interested in CO2 and CH4 because CO2 asphyxiates and CH4 is highly flammable (5-15% v/v CH4/air).
openaire  

Nanocomposite Films for Gas Sensing

, 2011
Nanocomposite films are thin films formed by mixing two or more dissimilar materials having nano-dimensional phase(s) in order to control and develop new and improved structures and properties. The properties of nanocomposite films depend not only upon the individual components used but also on the morphology and the interfacial characteristics ...
openaire   +3 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Investigation of In2O3: Zn NO2 gas sensors with nanoimprinted nanorod array and gold-black nanoparticles

Applied Surface Science Advances
In this study, to develop nitrogen dioxide (NO2) gas sensors with high response, high selectivity, and low operating temperature, indium oxide (In2O3) sensing membranes prepared using a magnetron radio frequency (RF) sputtering system and annealed in a ...
Mu-Ju Wu, Ting-Zhong Yan, Yu-Heng Hung, Chun-Hung Lin, Hsin-Ying Lee, Ching-Ting Lee   +5 more
doaj   +1 more source