Tags: metals

All Categories (1-20 of 26)

  1. How Metal induces crystallisation

    Closed | Responses: 0

    In a PECVD deposited a-Si we crystallize them by annealing method at a temperature of above 873K. But when a metal is induced say Aluminium, the crystallization starts at 393K. What is the...

    http://nanohub.org/answers/question/621

  2. mechanism for the growth of metal whiskers?

    Closed | Responses: 0

    what is the reason behind the growth of the metal whiskers? metals like tin, zinc, copper, gold, silver etc…….. till now the unaccepted theory says that it is due to compressive...

    http://nanohub.org/answers/question/376

  3. 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.

  4. 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.

  5. Argon Quenching of Ni-based Alloy Cylindrical Bars

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

    Calculate radiation viewfactors and power transferred between various parts of an zirconia physical vapor deposition chamber.

  6. Bottom Filled Mold

    07 Apr 2019 | | Contributor(s):: Matthew John M. Krane

    Calculation of mold filling times, with and without a constant height of metal in a riser. Problem uses modified Bernoulli equation for the mechanical energy balance and the students are asked to determine which resistances are significant.

  7. Cast-a-Box: Casting Conditions and Macroporosity

    07 Apr 2019 | | Contributor(s):: Adam Powell

    An illustration of three-dimensional finite difference simulation of heat conduction with phase change and complex boundary conditions, this requires students to adjust boundary conditions to make the top surface of a regular hexahedral "casting" to freeze last, eliminating...

  8. Continuous Casting Hydrostatics

    28 May 2019 | | Contributor(s):: Matthew John M. Krane

    A mixture of hydrostatics and the modified Bernoulli equation are used to determine the effect of fluid height in a tundish on the flow rate supplying liquid steel to a continuous casting mold.

  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. Dierk Raabe

    PROFESSIONAL SKETCHPROF. DIERK RAABEDepartment of Microstructure Physics and Alloy DesignMax-Planck-Institut fuer EisenforschungFax: ++49 –(0)211-6792-278E-mail: d.raabe@mpie.dewww.mpie.de- - - -...

    http://nanohub.org/members/58719

  11. Electron Beam Centrifugal Atomization of Metal

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

    Use a heat balance to calculate electron beam power required to continuously heat and melt metal as it is atomized, including heat losses from the top surface due to evaporation and radiation.

  12. Freezing by Radiation and Convection

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

    Use radiation and a heat transfer coefficient to estimate the initial rate of solidification of the solid shell at the top of a casting while the temperature in the shell can be considered uniform, then set up the equation for mixed conduction/convection-radiation limited cooling.

  13. 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.

  14. 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.

  15. Melting via molecular dynamics simulations

    10 Mar 2015 | | Contributor(s):: Alejandro Strachan

    In this assignment you will use MD simulations to study melting in metals using the nanoMATERIALS simulation tool in nanoHUB. You will build a supercell and heat it up to study its melting. You can visualize the atomic configuration as the temperature is increased and after melting. From the...

  16. MSEN 201 Lecture 4.1: Crystal Structures of Metals - Atomic Densities and Packing Factors

    13 Feb 2019 | | Contributor(s):: Patrick J Shamberger

  17. Multicomponent Evaporation I: Evaporation of Volatile Impurities During Electron Beam Melting

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

    Calculate conversion efficiency for electron beam melting for removal of lead, cadmium and zinc impurities from titanium.

  18. Multicomponent Evaporation II: Evaporation of Alloying Elements from Titanium

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

    Evaluate effects of differential evaporation of titanium and its alloying elements aluminum and vanadium on electron beam melting and evaporation processes.

  19. Nanophotonics and Metamaterials

    10 Nov 2017

    The course will cover nanoscale processes and devices and their applications for manipulating light on the nanoscale.

    http://nanohub.org/courses/NP

  20. NEMO5 Tutorial 4B: Device Modeling - Metals

    18 Jul 2012 | | Contributor(s):: Ganesh Krishna Hegde

    Describes some of the modifications made to NEMO5 to include Nth nearest neighbor interactions so that metal electronic structure and transport can be studied. Also includes instructions on how to use NEMO5 input decks to obtain bulk metallic band structures.