NTU Motor Lab

Physical Measurements

Electronic Analytical Balance

  • Range: 0~220 g
  • Repeatability error: 0.0002 g

Density Meter

  • Range: 0.005~300 g
  • Accuracy: 0.001 g/cm3

Optical Microscope

High-resolution optical microscope equipped with digital camera and autofocus capability for microstructural analysis of materials.

  • Bright-field optical imaging with high magnification for microstructure observation.
  • Automated focus adjustment for rapid and repeatable image acquisition and stitching.

Sample Preparation

Diamond Wire Saw

Laboratory-scale wire cutting systemfor precise sectioning of hard and brittle materials with minimal damage.

  • High-precision cutting using diamond-coated wire for metals, ceramics, and composites.
  • Integrated fluid delivery for cooling and debris removal during cutting.
  • Adjustable stage for accurate positioning and cutting of small samples.

Hot Mounting Press

Automatic Grinding and Polishing Machine

Post Processing

Laboratory Heating Oven

Laboratory oven for controlled thermal processing, drying, heat treatment, elevated temperature measurements,and ageing of materials and samples.

  • Programmable temperature range (~ 10~250 °C) with digital PID control.
  • Can operate in a vacuum.
  • Sample types: metals, powders, and coatings.
  • Processes: low-temperature annealing, curing, thermal ageing, elevated temperature measurements, and drying.

Muffle Furnace

Laboratory furnace for heat treatment.

  • Chamber Capacity: 3 L.
  • Maximum temperature: 1200 °C.
  • Maximum heating rate: 20 °C/min.
  • Protective gas: Nitrogen (N2.).

Vertical Tube Furnace

Laboratory furnace for heat treatment.

  • Maximum temperature: 1100 °C.
  • Maximum heating rate: 20 °C/min.
  • Vacuum or Protective gas: Nitrogen (N2.).
  • A hook ring was customized to add the quenching function.

Magnetic Annealing Furnace

Laboratory furnace for heat treatment.

  • Maximum temperature: 1000 °C.
  • Maximum heating rate: 20 °C/min.
  • Magnetic field intensity: > 5000 A/m.
  • Protective gas: Hydrogen (H2).

Electric Properties

Resistivity / Four-Point Probe System

Bench-top system for measuring the electrical resistivity of conductive materials using a contact probe method.

  • Range: 1 μΩ·cm ~ 20 MΩ·cm.
  • Direct measurement of sheet resistance and bulk resistivity (Ω/sq, Ω·m).
  • Four-point probe technique minimizing contact resistance effects.
  • Stable current source with sensitive voltage detection for high-accuracy measurements.
  • Sample types: metals, thin films, and coatings.

Eddy Current Conductivity Tester

Handheld eddy current system for rapid, non-destructive measurement of electrical conductivity in metallic materials.

  • Direct measurement in International Annealed Copper Standards percentage (%IACS) or MS/m using eddy current sensing.
  • Range: 0.5%~110% IACS or 0.29~63.8 MS/m.
  • Surface-based measurement with no sample preparation required.
  • Suitable for non-ferrous alloys (copper, aluminum, etc.) and processed materials.
  • Probe size: diameter of 8 mm.

Magnetic Testing

DC Magnetic Hysteresis Tester (Hysteresisgraph)

Laboratory-scale characterization system for magnetic materials (laminations, cores, and bulk samples).

  • Measurement of the full DC hysteresis loops (below 0.1 Hz), including coercivity (Hc), remanence (Br), flux density saturation (Bs), permeability (μ), and initial permeability (μi).
  • Determination of the total hysteresis loss (Ph).
  • Programmable magnetizing current (± 20 A) with stable low-noise operation for accurate magnetic measurements.
  • Capability of conducting measurements at different temperatures (up to 800 °C).
  • Sample types: ring cores, laminated strips, and bulk samples.
  • Testing materials: soft magnetic alloys, semi-hard magnetic alloys (steels, high entropy alloys), magnetic composites, amorphous/nanocrystalline alloys.

AC Magnetic Tester

Laboratory-scale characterization system for magnetic materials (laminations, cores, and bulk samples).

  • Measurement of the full AC hysteresis loops (45 Hz ~ 10 kHz).
  • Determination of the total loss (Pt), hysteresis loss (Ph), eddy current loss (Pe), and anomalous loss (Pa).
  • Programmable magnetizing current (± 45 Apk) with stable low-noise operation for accurate magnetic measurements.
  • Capability of conducting measurements at different temperatures (up to 800 °C).
  • Sample types: ring cores, laminated strips, and bulk samples.
  • Testing materials: soft magnetic alloys, semi-hard magnetic alloys (steels, high entropy alloys), magnetic composites, amorphous/nanocrystalline alloys.

Mechanical Testing

Microhardness Tester (Vickershardness System)

Precision micro-indentation system for measuring the hardness of metals, coatings, and additively manufactured materials at small scales.

  • Measuring Vickers hardness (HV) using controlled micro-load indentation.
  • Range: 5~3000 HV.
  • Automated load application with selectable low loads.
  • Integrated microscope for indentation measurement and accurate diagonal evaluation.
  • Digital interface with automated hardness calculation and test recording.
  • Sample type: polished bulk samples, thin sections, and coatings.

Data Analysis & Modelling

PC - Workstation

  • Processor: AMD Ryzen Threadripper 9970X 32-Cores (4.00 GHz).
  • Installed RAM: 128 GB (5600 MT/s).
  • Graphics card: NVIDIA GeForce RTX 5070 Ti (16GB).
  • Storage: 5.5 TB.