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High Voltage Electron Microscope

High Voltage Electron Microscope Leading Research Equipment Home

High Voltage Electron Microscope

Equipment Introduction

The high voltage electron microscope (HVEM) utilizes a high accelerating voltage for structural analysis at atomic -resolutions. The HVEM is employed in studies in basic and applied sciences, such as the structural analysis of new materials and development of infinitesimal materials.

Equipment Characteristics

  • Observation of three-dimensional (3D) atomic structure of materials by concurrently implementing its atomic resolution (0.12 nm) and a high specimen tilt angle (± 60°)
  • Chemical signal detection with a high collection rate using the advanced energy filtering system (HV-GIF) that utilizes the relativity effect
  • In -situ and cryo-EM analysis with customized specimen holder

Representative Research Case

Toughening mechanism of Strombus gigas conch shell revealed for the first time in the world

  • Stromus gigas, which exhibits outstanding mechanical properties, was investigated, and a toughening mechanism governed by nanoscale twins in the conch shell was revealed, contributing to clarify that the minimum unit of nanoscale twins plays an important role in the reinforcing mechanism
  • The advantages of atomic resolution and high specimen tilt angle in HVEM were applied simultaneously for observing the crystallographic properties of nanoscale twins

The microstructure of Strombus gigas and HRTEM image of nanoscale twins obtained by HVEM