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High-speed rotor for microparticle impact studies.

Abraham De la Cruz1, Timon Achtnich2, Emile Décosterd2

  • 1Department of Chemistry and Biochemistry, C100 Benson Building, Brigham Young University, Provo, Utah 84602, USA.

The Review of Scientific Instruments
|October 20, 2023
PubMed
Summary
This summary is machine-generated.

A novel high-speed rotor was developed for hypervelocity microparticle impact studies. Testing confirmed its design stability and material properties up to 100,000 rpm, enabling advanced impact research.

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Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Aerospace Engineering

Background:

  • Hypervelocity microparticle impacts are crucial for understanding material erosion and planetary science.
  • Existing rotor technologies may lack the stability or speed required for precise microparticle impact studies.

Purpose of the Study:

  • To design, construct, and test a novel high-speed rotor for hypervelocity microparticle impact experiments.
  • To ensure rotational stability and accurately measure material deformation at high speeds.

Main Methods:

  • A four-wing rotor design was implemented using titanium (grade 5).
  • Magnetic levitation bearings were used for operation in high vacuum.
  • A focused diode laser measured wing tip elongation up to 100,000 rpm (670 m/s tip speed).

Main Results:

  • The rotor achieved speeds up to 100,000 rpm with a tip speed of 670 m/s.
  • Measured wing tip elongation correlated with calculated values based on an elastic modulus of 1.16 GPa.
  • The design demonstrated rotational stability and minimized tensile force variations.

Conclusions:

  • The developed high-speed rotor is suitable for hypervelocity microparticle impact studies.
  • The experimental validation confirms the rotor's performance and material integrity.
  • This technology advances research capabilities in impact dynamics and material science.