Results 1 to 10 of about 3,423,079 (298)

The Effects of Laser Parameters and the Ablation Mechanism in Laser Ablation of C/SiC Composite. [PDF]

open access: yesMaterials (Basel), 2019
The effects of laser parameters and the ablation mechanism in laser ablation of a carbon fiber reinforced silicon carbide (C/SiC) composite are investigated in the present study. Six different power densities are provided, as well as six levels of pulse numbers, and then ablation experiments are conducted for the C/SiC composite, induced by a pulsed ...
Pan S, Li Q, Xian Z, Su N, Zeng F.
europepmc   +7 more sources

Ablation behavior and mechanism analysis of C/SiC composites

open access: yesJournal of Materials Research and Technology, 2016
Ablation is an erosive phenomenon with removal of material by a combination of thermo-mechanical, thermo-chemical, and thermo-physical factors with high temperature, pressure, and velocity of combustion flame. Materials with outstanding thermo-mechanical
Yang Wang, Zhaofeng Chen, ShengJie Yu
doaj   +3 more sources

Epicardial Connection as a Resource of Atrial Fibrillation Recurrence After Pulsed Field Ablation: A Case Report [PDF]

open access: yesClinical Case Reports
This case highlights an uncommon but clinically important mechanism of atrial fibrillation recurrence after Pulsed field ablation. It emphasizes the importance of ablation along the ridge during the first session and also the need for careful evaluation ...
Kyong Hee Lee   +5 more
doaj   +2 more sources

Efficient fabrication of light Cf/SiHfBOC composites with excellent thermal shock resistance and ultra-high-temperature ablation up to 1800 °C

open access: yesJournal of Advanced Ceramics, 2023
In this paper, a high-yield Hf-modified SiHfBOC ceramic precursor was developed, and a high-pressure assisted impregnation pyrolysis method was proposed to achieve the preparation of 3D PyC–Cf/SiHfBOC composites.
Yang Lyu   +7 more
doaj   +1 more source

Plasma and nanoparticle shielding during pulsed laser ablation in liquids cause ablation efficiency decrease

open access: yesOpto-Electronic Advances, 2021
Understanding shielding cross-effects is a prerequisite for maximal power-specific nanosecond laser ablation in liquids (LAL). However, discrimination between cavitation bubble (CB), nanoparticle (NP), and shielding, e.g., by the plasma or a transient ...
Sarah Dittrich   +2 more
doaj   +1 more source

Recent Perspectives on the Mechanism of Recurrence After Ablation of Hepatocellular Carcinoma: A Mini-Review

open access: yesFrontiers in Oncology, 2022
Hepatocellular carcinoma (HCC) is one of the most common malignant tumors. Hepatectomy, liver transplantation, and ablation are the three radical treatments for early-stage hepatocellular carcinoma (ESHCC), but not all patients are fit for or can ...
Jianquan Yang   +4 more
doaj   +1 more source

High-energy continuous wave laser ablation of alumina ceramic

open access: yesJournal of Materials Research and Technology, 2023
The development of high-energy continuous wave (CW) laser has enabled the generation of output powers ranging from 300 to 500 kW. Understanding the ablation mechanism of CW lasers at high laser fluence is crucial for the design of effective high-energy ...
Xianshi Jia   +11 more
doaj   +1 more source

Research on the Ablation Characteristics and Thermomechanical Coupling Matching of Continuous-Wave/Pulsed Combined Lasers

open access: yesPhotonics, 2022
In laser processing and electro-optical countermeasures, the laser ablation efficiency on the target is of great importance. Compared with traditional single laser irradiation, ablation by continuous-wave (CW)/pulsed combined laser has the advantages of ...
Jing Xiao   +8 more
doaj   +1 more source

Bionic boron/silicon-modified phenolic resin system with multifunctional groups: synthesis, thermal properties and ablation mechanism

open access: yesBiosurface and Biotribology, 2018
A kind of silicon-and-boron-modified phenolic–formaldehyde resin (SBPF) with excellent thermal stability was fabricated via a simple two-step method and used for the matrix of ablation materials.
Fengyi Wang   +2 more
doaj   +1 more source

Crosstalk between microwave ablation and ferroptosis: The next hot topic?

open access: yesFrontiers in Oncology, 2023
Microwave ablation has been one form of thermal ablation in treatments for many tumors, which can locally control unresectable tumors. Ferroptosis is iron-dependent cell death caused by the cumulative reactive oxygen species and lipid peroxidation ...
Lu Yu   +8 more
doaj   +1 more source

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