Results 111 to 120 of about 858,084 (294)

Microwave Harmonic Emission in MgB2 Superconductor: Comparison with YBaCuO

open access: yes, 2006
We report results of microwave second-harmonic generation in ceramic samples of MgB2, prepared by different methods. The SH signal has been investigated as a function of the temperature and the static magnetic field.
Bonsignore, G.   +5 more
core   +1 more source

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

New hardenable CERMETS for cutting and forming applications [PDF]

open access: yes, 2008
The University Carlos III has developed a new metal matrix composite (MMC) constituted by a dispersion of ceramic particles of TiCN in a steel matrix. The matrix can be hardened by heat treatment, leading to a material with high hardness and toughness ...
Gordo Odériz, Elena
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

The edge artifact extraction method for Si3N4 ceramic bearing rolling element microcracks characterization

open access: yesScientific Reports
Aiming at the problem that the edge artifacts of Si3N4 ceramic bearing rolling element microcracks have low contrast, contain noise, and easily merge with the background, making it difficult to segment. A method based on 2D discrete wavelet transform and
Tao Chen   +5 more
doaj   +1 more source

Investigation of the structure and properties of ceramic materials with a rigid system of microfiltration transport pores based on basalt fibers [PDF]

open access: gold, 2021
Siarhei Besarab   +5 more
openalex   +1 more source

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

open access: yesAdvanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge   +7 more
wiley   +1 more source

Effect of particle size distribution on screening efficiency of vibrating screen

open access: yesScientific Reports
Vibrating screen screening efficiency is affected by a variety of factors, among which particle size distribution (PSD) has long been neglected by researchers.
Guolang Shen   +5 more
doaj   +1 more source

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