Results 31 to 40 of about 13,997 (261)
Improvement of anisotropy sensitivity in the scanning acoustic microscope [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1989 The response of the conventional scanning acoustic microscope (SAM) to anisotropic materials is theoretically investigated. For this purpose, the reflection coefficient of plane acoustic waves incident on a liquid-solid interface is numerically calculated for a general anisotropic solid oriented in any arbitrary direction.
openaire +3 more sources
In-Situ Monitoring and Analysis of the Pitting Corrosion of Carbon Steel by Acoustic Emission
Applied Sciences, 2019 The acoustic emission (AE) technique was applied to monitor the pitting corrosion of carbon steel in NaHCO3 + NaCl solutions. The open circuit potential (OCP) measurement and corrosion morphology in-situ capturing using an optical microscope were ...
Junlei Tang +4 more
doaj +1 more source
Scientific Reports, 2023 A dual-resonant scanning multiphoton (DRSM) microscope incorporating a tunable acoustic gradient index of refraction lens with a resonant mirror is developed for high-speed volumetric imaging.
Chia-Wei Hsu +3 more
doaj +1 more source
Anisotropy and Directivity Effects on Uniaxial Compression of Carbonaceous Slate Form Jinman Mine
Applied Sciences, 2022 To determine the anisotropic mechanical characteristics of carbonaceous slate at the Jinman Mine located in Lancang River Gorge, China, uniaxial compression, acoustic emission (AE) monitoring, and scanning electron microscopy (SEM) tests were conducted ...
Zhixiong Zhang +3 more
doaj +1 more source
Scanning Acoustic Force Microscope Investigations of Surface Acoustic Waves
Surface and Interface Analysis, 1997 We report on the investigation of surface acoustic wave (SAW) fields by scanning acoustic force microscopy (SAFM), reaching submicron lateral resolution. The SAFM is based on a standard atomic force microscope and utilizes the non-linear force curve in the sense of a mechanical diode. The surface oscillation therefore leads to a shift of the cantilever'
Hesjedal, T, Chilla, E, Frohlich, H
openaire +2 more sources
Enhancement of piezoelectric properties of lithium niobate thin films by different annealing parameters [PDF]
Modern Electronic Materials, 2020 Piezoelectric materials with useful properties find a wide range of applications including opto- and acousto- electronics. Lithium niobate in the form of a thin film is one of those promising materials and has a potential to improve ferroelectric random ...
Roman N. Zhukov +7 more
doaj +3 more sources
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Monitoring Damage Progression in Tensile Tested SiCp/Al Composites Using Acoustic Emission
Frontiers in Materials, 2022 In this paper, the tensile tests of SiCp/Al composites were carried out, and the acoustic emission (AE) method was used to monitor the damage progress. The collected signals were analyzed in time-frequency domain.
Weiguo Wu +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Residual adhesive after electrode loading in adhesive‐assisted resistance spot welding is quantified through a traceable experimental‐to‐digital workflow. Chromatic confocal topography provides calibrated surface‐height data, while OpenCV detects the electrode imprint and integrates adhesive height into comparable volume metrics.
Sung‐Min Wi, Jiangdong Zhao
wiley +1 more source