On the use of non-destructive, gigahertz ultrasonics to rapidly screen irradiated steels for swelling resistance

Almousa, Nouf; Dacus, Benjamin; Woller, K.; Shin, Ji Ho; Jang, Changheui; Shao, Lin; Garner, F.А.; Gabriel, Adam; Short, Michael P.

doi:10.1016/j.matchar.2021.111017

Cited by 6 publications

(4 citation statements)

References 46 publications

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“…The total length of the active region of the SAW-IDT was L = 5 mm. Based on the above IDT parameters, the number and the width of the electrodes can be calculated by Equation ( 8) and (9). Further details of the parameters of the down-chirp SAW-IDT can be found in Table 1, and the number and the width of IDT electrodes are listed in Table 2.…”

Section: Experiments Sectionmentioning

confidence: 99%

“…[5,6] Ultrasonic technology offers fast testing, ease of operation, nondestructiveness, and high sensitivity, making it a popular choice for NDT of material properties. [7][8][9][10] Surface acoustic wave (SAW) is an elastic wave that travels along the free surface of a solid media, with most energy concentrated near the surface and attenuating exponentially into the body. [11] The dispersion curve of SAW phase velocity propagating on a film/substrate structure contains valuable information about the physical parameters of the film and substrate.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Determination of Young's Modulus and Density of Ultrathin Low‐k Films Using Surface Acoustic Waves

Zhang,

Xiao,

Zhang

et al. 2024

Physica Status Solidi (a)

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The nondestructive testing (NDT) of mechanical properties in ultrathin low dielectric constant (low‐k) films is a major challenge in integrated circuit manufacturing. Young's modulus and density are closely related parameters for low‐k films. This study presents a method for NDT of Young's modulus and density of porous low‐k black diamond (SiOC:H, BD) films. A linear frequency modulation (LFM) surface acoustic wave (SAW) interdigital transducer (IDT) with a frequency range of 20–250 MHz is designed to generate SAW signals on the samples. The series of SAW waveforms obtained on the samples are processed to obtain experimental SAW dispersion curves across a broad frequency range. By comparing these experimental curves with theoretical dispersion curves, as well as their first‐order derivatives, Young's modulus and density of porous low‐k BD films with thicknesses of 100, 300, 500, and 1000 nm are characterized. To verify Young's modulus measurements from the SAW method, a control experiment using nanoindentation is conducted. The results demonstrate that the SAW method can reduce the impact of the substrate and is independent of the film thickness. This study presents a highly accurate measuring method for simultaneous multiparameter evaluation of ultra‐thin low‐k films.

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Section: Experiments Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Young's Modulus and Density of Ultrathin Low‐k Films Using Surface Acoustic Waves

Zhang,

Xiao,

Zhang

et al. 2024

Physica Status Solidi (a)

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“…By optically measuring the dynamics of these excitations, elastic and thermal properties can be extracted simultaneously from a single non-destructive measurement [82]. The measurement sampling depth is on the order of single microns, a length scale particularly relevant for the study of metals with defects induced through ion beam irradiation [83][84][85][86]. Capabilities for in situ TGS measurements during high temperature ion beam exposure have also been developed [87].…”

Section: Transient Grating Spectroscopymentioning

confidence: 99%

Towards quantitative inference of nanoscale defects in irradiated metals and alloys

Hirst,

Dennett

2022

Preprint

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“…By optically measuring the dynamics of these excitations, elastic and thermal properties can be extracted simultaneously from a single non-destructive measurement . The measurement sampling depth is on the order of single microns, a length scale particularly relevant for the study of metals with defects induced through ion beam irradiation (Hofmann et al, 2015a;Hofmann et al, 2015b;AlMousa et al, 2021). Capabilities for in situ TGS measurements during high temperature ion beam exposure have also been developed (Dennett et al, 2019).…”

Section: Transient Grating Spectroscopymentioning

confidence: 99%

Towards Quantitative Inference of Nanoscale Defects in Irradiated Metals and Alloys

Hirst

Dennett

2022

Front. Mater.

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Quantifying the population of nanoscale defects that are formed in metals and alloys exposed to extreme radiation environments remains a pressing challenge in materials science. These defects both fundamentally alter material properties and seed long-timescale performance degradation, which often limits the lifespan of engineering systems. Unlike ceramic and semiconducting materials, these defects in metals and alloys are not spectroscopically active, forcing characterization to rely on indirect measurements from which the distribution of nanoscale defects may be inferred. In this mini-review, different experimental methodologies which have been employed for defect inference are highlighted to capture the current state of the art. Future directions in this area are proposed, which, by combining data streams from multiple and complementary characterization methods in concert with multi-scale modeling and simulation, will enable the ultimate goal of quantifying the full spectrum of defects in irradiated metals and alloys.

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On the use of non-destructive, gigahertz ultrasonics to rapidly screen irradiated steels for swelling resistance

Cited by 6 publications

References 46 publications

Simultaneous Determination of Young's Modulus and Density of Ultrathin Low‐k Films Using Surface Acoustic Waves

Simultaneous Determination of Young's Modulus and Density of Ultrathin Low‐k Films Using Surface Acoustic Waves

Towards quantitative inference of nanoscale defects in irradiated metals and alloys

Towards Quantitative Inference of Nanoscale Defects in Irradiated Metals and Alloys

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