All Categories (21-40 of 94)

1. Make a Microfluidic Device to Investigate Properties of Solutions

   07 Apr 2020 | | Contributor(s):: Greg Hair, NNCI Nano

   This lesson focuses on having students design and test a microfluidic device to investigate the properties of solutions. The lesson activities combine concepts learned in the previous semester (energy, frequency, wavelength, and bonding) together with the aforementioned concepts of solutions to...

2. Doping to Create a Semiconductor: Changing conductive properties through diffusion

   14 Jan 2020 | | Contributor(s):: Kaye Sheets, NNCI Nano

   In the semiconductor industry scientists take advantage of diffusion to “dope” or introduce atoms into a silicon wafer to change its conductive properties. The lesson simulates the diffusion of a gas phase substance (ammonia) into a solid substrate (gelatin)  and compares the...

3. How Catalysts Work - A Nanoscale Phenomenon

   13 Jan 2020 | | Contributor(s):: Manueal Casillas, NNCI Nano

   This activity helps students understand how catalysts work on the nanoscale. Catalyst are more efficient when on the nanoscale because of the large amount of surface area in comparison to volume. This is a great way to introduce or review reactants, catalysts, and adsorption, desorption, and...

4. Visualizing Diffusion in Real Time and on a Macroscle

   06 Jan 2020 | | Contributor(s):: Ryan Stuart, NNCI Nano

   This lesson has been designed to help students visualize how diffusion occurs by creating a macro version of a permeable membrane. The goal is to have students see how molecular size (atomic radii) impact diffusion at the nanoscale. In addition, they will observe diffusion rates of iodine with...

5. Solid Oxide Hydrogen Fuel Cell

   29 Aug 2019 |

   Solve the steady-state radial diffusion equation in a cylinder to calculate the flux through a tubular fuel cell, then set up the equations to calculate the oxygen concentration field inside the fuel cell and the total power produced.

6. Growth of Precipitate Particle from Super Saturated Solid Solution

   22 Aug 2019 | | Contributor(s):: Matthew John M. Krane

   Use integral analysis to derive growth paramters for a precipitate particle during heat treatment.

7. Nitriding of an Iron Thin Film

   19 Aug 2019 | | Contributor(s):: Adam Powell

   Calculate nitrogen concentration profile during diffusion into a finite thin film of iron using error function and Fourier series solutions.

8. Iron Oxidation

   19 Aug 2019 | | Contributor(s):: Adam Powell

   During iron oxidation, calculate the oxide layer thickness over time, and compare to the case with 1% titanium added.

9. Decarburization of Solid Low-Carbon Steel

   01 Aug 2019 | | Contributor(s):: Adam Powell

   Calculate carbon concentration profile vs. time in low-carbon steel sheet in a decarburizing atmosphere at high Biot number.

10. Drive-in Diffusion of Semiconductor Dopant

    01 Aug 2019 | | Contributor(s):: Adam Powell

    Sketch concentration profiles and calculate depth vs. time of n-type layer growing by drive-in diffusion.

11. Application of Integral Analysis to Semi-infinite Diffusion Couple

    01 Aug 2019 | | Contributor(s):: Matthew John M. Krane

    Apply integral analysis to semi-infinite diffusion couple.

12. Radial Distribution Function Calculator

    25 Jul 2019 | | Contributor(s):: Julian C Umeh, Thomas A Manz

    This tools calculates the radial distribution function of gas molecules

13. Mixed Gas Diffusion Calculator

    28 Jun 2019 | | Contributor(s):: Julian C Umeh, Thomas A Manz

    Simulates the diffusion of a gas mixture onto a metal organic framework

14. Chemical Vapor Deposition

    28 May 2019 | | Contributor(s):: Adam Powell

    Calculate boundary layer sizes and deposition rate profiles along substrates on the bottom of a box-type chemical vapor deposition chamber.

15. Dimensional Analysis: Catalytic Combustion of Carbon Monoxide

    16 May 2019 | | Contributor(s):: Adam Powell

    Use dimensional analysis to understand how parameters and material properties determine uniformity of reactant gas concentration across porous spheres coated with catalysts.

16. Heat Conduction and Diffusion in Alloy Casting

    16 May 2019 | | Contributor(s):: Adam Powell

    Derive temperature and liquid concentration profiles during die casting of a roughly plate-shaped alloy part.

17. Replication Competent Oncolytic Virus in Epithelial cell layer

    18 Apr 2019 | | Contributor(s):: Adrianne Jenner, Paul Macklin

    PhysiCell simulation of a replication competent oncolytic virus release from two veins, diffusing through a layer of epithelial cells.

18. 

    Bronson Hausmann

    Graduate student that uses VM's for simulation sometimes

    https://nanohub.org/members/225860

19. Application of Integral Analysis to Semi-infinite Diffusion Couple

    20 Mar 2019 | | Contributor(s):: Matthew John M. Krane

    Apply integral analysis to semi-infinite diffusion couple.

20. Dimensional Analysis for Dummies

    20 Mar 2019 |

    Derivation of the error function solution to the diffusion equation, and description of the point source in 1-, 2- and 3-dimensions..