Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Online process control for directional solidification by ultrasonic pulse echo technique.

A Drevermann1, C Pickmann, R Tiefers

  • 1ACCESS e.V., Intzestr. 5, D-52072 Aachen, Germany. a.drevermann@access.rwth-aachen.de

Ultrasonics
|March 30, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Localizing value of cutaneous ictal phenomena: A systematic review.

Epileptic disorders : international epilepsy journal with videotape·2026
Same author

Contribution to the Pathological Physiology of Pneumonia.

Medical examiner (Philadelphia, Pa.)·2023
Same author

Microgravity studies of solidification patterns in model transparent alloys onboard the International Space Station.

NPJ microgravity·2023
Same author

In-situ X-ray monitoring of solidification and related processes of metal alloys.

NPJ microgravity·2023
Same author

Diurnal changes in xylem pressure of the hydrated resurrection plant Myrothamnus flabellifolia: evidence for lipid bodies in conducting xylem vessels.

The New phytologist·2021
Same author

Measurement of non-isothermal transport coefficients in a near-eutectic succinonitrile/(d)camphor mixture.

The Journal of chemical physics·2019

Researchers developed an ultrasound-based method to control solidification velocity. This technique uses pulse echo to measure solidification rates in real-time, achieving steady-state solidification for metallic alloys.

Area of Science:

  • Materials Science
  • Solidification Science
  • Process Control Engineering

Background:

  • Directional solidification is crucial for advanced materials, but achieving steady-state growth rates is challenging.
  • Traditional methods often lead to fluctuations in solidification velocity, impacting material properties.
  • Controlling the actual growth velocity is essential for reproducible and high-quality solidified materials.

Purpose of the Study:

  • To develop and demonstrate an ultrasound-based method for real-time control of solidification velocity.
  • To achieve steady-state solidification rates in metallic alloys during directional solidification.
  • To improve the precision and reproducibility of the directional solidification process.

Main Methods:

  • Development of an ultrasound pulse echo technique for online measurement of solidification rate.

Related Experiment Videos

  • Implementation of a feedback control system linking measured solidification rate to furnace velocity.
  • Conducting solidification experiments with metallic alloys under controlled conditions.

    • Main Results:

    • The developed method successfully measures the actual solidification rate in real-time.
    • Online process control enabled the achievement of a steady-state solidification with a constant rate.
    • Experiments demonstrated the effectiveness of the ultrasound-based control system in stabilizing solidification velocity.

    Conclusions:

    • Ultrasound-based real-time monitoring and control is an effective strategy for achieving steady-state directional solidification.
    • This method offers a significant improvement over traditional approaches for controlling solidification velocity.
    • The developed technique holds potential for enhancing the quality and consistency of solidified materials.