Experimental and Computing Facilities


Experimental Facilities

P/M Processing Facility
  1. Horizontal rotary blenders and a drum for mechanical alloying.
  2. Gas atomizing tower (1.4m D x 5.5m H) for air atomizaiton in a clsosed system. 30 kW air melt induction furnace for inert melting, an electric resistance furnace (500g capacity) and 2-40 kW DC power supplies for melting. Tin, lead/tin, zinc alloys, steels, and cast iron have been successfully atomized. Atomizing chamber is also capable of being used for spray deposition. Pressurised powder feeder for injecting powders into the atomizing tower. Gas supply to interchangeable gas nozzle is measured using a turbine flowmeter. Gas supply lines are capable of delivering gas at up to 7x107 Pa (1000 psi).
  3. Impulse atomization tower (0.6m D x 4m H) for atomizing into controlled atmospheres. 0.5 kg steel melt capacity. High temperature spray deposition heater (1470oK) and gas atomization capabilities also available on this unit.
  4. Stainless steel sieves and riffles for sampling and size measurement of metal powders.
  5. Standard powder bulk density and flowability testing equipment.
  6. Tape casting of metal and ceramic powders.
  7. Glove Box for fine powder handling.
Process Sensors and Image Analysis
  1. Molten metal sensor for melt flowrate measurement into the gas atomizer.
  2. PCSV probe for on-line, real time measurement of particle size, velocity and concentration.
  3. DPV 2000 for in-flight measurement of droplet size, velocity and temeprature.
  4. The shadowgraphy technique (backlighting) is used to visualize particles (e.g. droplets from a spray, bubbles in liquid etc.).
  5. DSC is used for the identification of phase transformation temperatures and heat treatment.
  6. Automatic Grinder/Polisher is used for metallographique preparation of samples to be analysed by SEM, EPMA etc
  7. Precision Saw is used for precision cutting of Strips produced by spray deposition, as cast or heat treated Steel sample.
  8. Centrifuge is used to separate certain phases from one and other based on their density.
  9. Mikron Infrared Quantum II Emissivity Probe is used to determine surface temperature and emissivity from a variety of surfaces (e.g.: emissivity and surface temperature of a hot rolled steel skelp and of continuous cast steel).
  10. Infrared video imaging of high temperature metal processing including: 1) 2D temperature measurements from the surface on a hot rolled steel steel strip and 2) temperature measurement of coatings produced using PTA (Plasma Transfer Arc)

Computing Facilities

Hardware

AMPL has a wide range of computing equipment. In addition, local area networking utilizes a high speed Ethernet cable networking for several Workstations and computers within AMPL and to the University of Alberta University Computing Systems. The University of Alberta has also direct connection to the Super Computer Center located at the University of Calgary Campus.

Software

As part of the extensive computational effort on-going in process research, several commercial packages have been or are being used by the research staff. The group has on-hand experience with codes such as SIMULIA, ANSYS, FIDAP, FLUENT, Topas, I-DEAS, MATLAB, Thermo-Calc and Avizo. Numerous software packages have been developed in house for continuous casting, furnace reheating, materials testing and droplet solidification.