Studying Electrical Conductivity Using a 3D Printed Four-Point Probe Station
| Autor: | Julio M. D’Arcy, Luciano M. Santino, Yang Lu, Hari Anandarajah, Shinjita Acharya |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Fabrication business.industry Chemistry Contact resistance Analytical chemistry 3D printing Mechanical engineering 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology 01 natural sciences Education Microcontroller Software 0103 physical sciences Software design Electronics 0210 nano-technology business Material properties |
| Zdroj: | Journal of Chemical Education. 94:950-955 |
| ISSN: | 1938-1328 0021-9584 |
| Popis: | The design and fabrication of functional scientific instrumentation allows students to forge a link between commonly reported numbers and physical material properties. Here, a two-point and four-point probe station for measuring electrical properties of solid materials is fabricated via 3D printing utilizing an inexpensive benchtop fused-deposition modeling system and designed by standard computer-aided design software. Stainless steel tapestry needles serve as probes for contacting a sample; these are also electroplated in order to study their electrical performance, and provide a framework for discussion of electrical charge transport, contact resistance, and conductivity in materials. A microcontroller board is integrated into the probe and controlled using open-source software. Our robust and simple design provides an instrument that is easily fabricated by students and readily applied to a wide range of classroom settings focused on materials science, mechanical and electrical engineering, as well as... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|