Nano-indentation and nano-scratch of flexible intraocular lens material at the molecular scale

Cheng, Fan; Liu, Kaixuan; Wang, Yongguang; Zhang, Lei; Sun, Lining

doi:10.1007/s10409-022-22321-x

Cited by 9 publications

(3 citation statements)

References 36 publications

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“…Ionic transport in an angstrom-scale channel is critical to understanding and mimicking the physiological mechanism of biological ion channels. [1][2][3] The development of nanotechnology and materials enables creation of angstrom-scale structures for studying ion transport in such confinement, which has led to several peculiar discoveries [3][4][5][6][7][8][9][10] and excellent separation capabilities. [11][12][13] The Coulomb interaction of ions is strongly enhanced 14,15 in confinement, due to the contrast in dielectric constant between the surface and water, which may cause several phenomena that are unique to angstrom-scale channels.…”

Section: Introductionmentioning

confidence: 99%

“…Ionic transport in an angstrom-scale channel is critical to understanding and mimicking the physiological mechanism of biological ion channels. 1–3 The development of nanotechnology and materials enables creation of angstrom-scale structures for studying ion transport in such confinement, which has led to several peculiar discoveries 3–10 and excellent separation capabilities. 11–13…”

Section: Introductionmentioning

confidence: 99%

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Surface-charge governed ionic blockade in angstrom-scale latent-track channels

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Surface-charge governed ionic blockade in angstrom-scale latent-track channels

et al. 2023

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“…19,20 It should be noted that the extremely low fracture toughness of LT may lead to crystal fragmentation during processing, resulting in the low machining efficiency. [21][22][23] All the above results indicate that the wider application of LT has been restricted by these issues and it is extremely urgent to develop more reliable and efficient LT processing methods.…”

Section: List Ofmentioning

confidence: 99%

Kinetic Modeling and Material Removal Mechanism Analysis of Fixed-Abrasive Polishing for Lithium Tantalite Wafer

Hang,

Ye,

Chen

et al. 2024

ECS J. Solid State Sci. Technol.

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As a typical multi-functional soft-brittle ceramics material, lithium tantalate (LT) exhibits excellent electro-optical and ferroelectric properties and has now been widely applied in many fields, such as electro-optical modulators, pyroelectric detectors, and surface acoustic wave substrates. Traditional free-abrasive polishing processing of lithium tantalite crystals is generally fraught with poor efficiency for its lower fracture toughness. This study proposed a method of polishing lithium tantalite wafer by means of fixed-abrasive plates. A cutting force model and the relative cutting speed model of the machining mechanism of fixed-abrasive plates were first established, and then the main influencing factors of cutting force and relative cutting speed were analyzed on the basis of the theoretical model. It was found that cutting force is influenced by eccentricity and load, while relative cutting speed is influenced by eccentricity and the fixed-abrasive plates’ rotation speed. Finally, single-factor tests were conducted on these influencing factors, and the comparative analysis between the experimental results and those in the theoretical model shows that they are highly correlated to each other. After 30 minutes of polishing under the optimized parameters w=60rpm, e=90mm, variable load, the surface roughness Sa of the workpiece is reduced to 1.234 nm, and the MRR reaches 14.821 μm/h.

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