相关实验视频

Updated: May 3, 2026

Synthesis of Phase-shift Nanoemulsions with Narrow Size Distributions for Acoustic Droplet Vaporization and Bubble-enhanced Ultrasound-mediated Ablation

Synthesis of Phase-shift Nanoemulsions with Narrow Size Distributions for Acoustic Droplet Vaporization and Bubble-enhanced Ultrasound-mediated Ablation

Published on: September 13, 2012

超声波化处理:进展,应用和未来方向

Shuang Yang¹, Yu Weng¹, Qin Zhao²

¹College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China.

Materials (Basel, Switzerland)

|February 13, 2025

概括

超声波炼 (UMP) 通过提炼结构和减少缺陷来增强金属造. 先进的成像和建模揭示了复杂的融化动态,为未来材料科学创新铺平了道路.

科学领域:

材料科学与工程材料科学与工程
金工业是金工业的一个方面.
物理化学物理化学

背景情况:

超声波炼 (UMP) 为改善金属造质量提供了一种环保和节能的方法.
了解UMP的基本机制,例如泡动力学和不透明融中的声流,仍然是一个挑战.

研究的目的:

审查超声波化处理 (UMP) 研究的进展.
突出现场同步X射线成像和计算建模在理解UMP机制中的作用.
讨论UMP对质量,结构精细化和金属合金缺陷缓解的影响.

主要方法:

审查历史和最近的UMP研究.
应用同步射线X射线成像用于现场观测融化动态.
使用计算建模来分析UMP中的多尺度现象.
对各种金属合金系统的发现进行批判性分析.

主要成果:

详细了解化气泡行为和金属融体内的声流.
了解超声波和固化阶段之间的相互作用.
证明UMP在实现谷物提炼,碎片化和减少固化缺陷方面的有效性.
为UMP研究验证先进的成像和建模技术.

结论:

UMP是推进金属造的重要技术,可以显著改善材料性能.
现场研究和理论框架对于进一步开发和优化UMP至关重要.
未来的研究应该专注于弥合当前的知识差距,以释放UMP在材料创新的全部潜力.

关键词:

声学流动的声学流动高准确度建模的模型.在现场 (in situ) 进行.同步龙X射线成像技术超声波泡泡的超声波泡泡是什么意思超声波化加工是如何处理的

更多相关视频

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

Ultrasonic Welding of Thermoplastic Composite Coupons for Mechanical Characterization of Welded Joints through Single Lap Shear Testing

Published on: February 11, 2016

Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy

Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy

Published on: January 7, 2019

相关概念视频

Targeted Cancer Therapies

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...

Radiation: Applications

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...

Atomic Emission Spectroscopy: Instrumentation

Atomic Emission Spectroscopy: Instrumentation

The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.

Double Resonance Techniques: Overview

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

Physical Methods for Controlling Microbial Growth: Radiation and Filtration

Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.

Upstream Processing

Upstream Processing

Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...