Effect of processing conditions on in-mold crystallization of poly(L-lactic) acid

Peer reviewed: YesNRC publication: Ye

On the influence of recombination centers on the electrical performance of silicon power rectifiers

The use of gold, platinum and electron irradiation induced defects as recombination centers in silicon devices is studied. Results are presented concerning the variations of carrier lifetime with the concentration of both deep and shallow level impurities, for different bias conditions. The influence of carrier lifetime on the electrical performance of power PIN rectifiers is considered in order to compare the relative advantages of the lifetime controlling techniques

Investigation of Re-Crystallization of Injection Molded TPO Unpainted Plaques

Peer reviewed: YesNRC publication: Ye

Characterization of Thermal Contact in Injection Molding via the Combination of an Infrared Hollow Waveguide System and a Two-thermocouple Probe

Peer reviewed: YesNRC publication: Ye

Nanotube conductive networks in microinjected polymer and polymer blends

Peer reviewed: YesNRC publication: Ye

Numerical investigation of the flow front behavior in the co-injection molding process

This paper presents a three-dimensional (3D) solution algorithm for solving the sequential co-injection moulding process. The ow of skin and core materials inside a rectangular cavity is investigated both numerically and experimentally. A 3D nite element ow analysis code is used to solve the governing equations of the non-isothermal sequential co-injection moulding. The predicted ow front behaviour is compared to the experimental observations for various skin=core volume ratio, injection speed, injection temperature, and core injection delay. Simulation results are in good agreement with experimental data and indicate correctly the trends in solution change when processing parameters are changing. Solutions are also shown for the lling of a spiralow mould. The numerical approach is shown to predict the core expansion phase during which the ow front of core and skin materials advance together without breakthrough. Breakthrough phenomena is also predicted and the numerical solution is in good agreement with the experiment.Peer reviewed: YesNRC publication: Ye