Control of interface shape of cadmium zinc telluride grown via an electrodynamic gradient freeze furnace

Lisa Lun; Andrew Yeckel; Jeffrey J. Derby; Prodromos Daoutidis

doi:10.1109/MED.2007.4433759

Control of interface shape of cadmium zinc telluride grown via an electrodynamic gradient freeze furnace

Lisa Lun, Andrew Yeckel, Jeffrey J. Derby, Prodromos Daoutidis

Chemical Engineering and Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

Abstract

We consider the feasibility of closed-loop control to control the interface shape of cadmium zinc telluride (CZT) grown via an electrodynamic gradient freeze (EDG) furnace. A simple proportional control algorithm is applied to a quasi-steady-state model to control the interface shape by adjusting the thermal gradient of the furnace temperatures. Three scenarios are enacted: actuation along the entire external boundary, along the solid portion only, and along the melt portion only. Actuation along the solid only proved to be the most successful of the three scenarios, and produced the unexpected bene£t of a favorable convex interface shape.

Original language	English (US)
Title of host publication	2007 Mediterranean Conference on Control and Automation, MED
DOIs	https://doi.org/10.1109/MED.2007.4433759
State	Published - 2007
Event	2007 Mediterranean Conference on Control and Automation, MED - Athens, Greece Duration: Jul 27 2007 → Jul 29 2007

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Name	2007 Mediterranean Conference on Control and Automation, MED

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Other	2007 Mediterranean Conference on Control and Automation, MED
Country/Territory	Greece
City	Athens
Period	7/27/07 → 7/29/07

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10.1109/MED.2007.4433759

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Control of interface shape of cadmium zinc telluride grown via an electrodynamic gradient freeze furnace. / Lun, Lisa; Yeckel, Andrew; Derby, Jeffrey J. et al.
2007 Mediterranean Conference on Control and Automation, MED. 2007. 4433759 (2007 Mediterranean Conference on Control and Automation, MED).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lun, L, Yeckel, A, Derby, JJ & Daoutidis, P 2007, Control of interface shape of cadmium zinc telluride grown via an electrodynamic gradient freeze furnace. in 2007 Mediterranean Conference on Control and Automation, MED., 4433759, 2007 Mediterranean Conference on Control and Automation, MED, 2007 Mediterranean Conference on Control and Automation, MED, Athens, Greece, 7/27/07. https://doi.org/10.1109/MED.2007.4433759

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abstract = "We consider the feasibility of closed-loop control to control the interface shape of cadmium zinc telluride (CZT) grown via an electrodynamic gradient freeze (EDG) furnace. A simple proportional control algorithm is applied to a quasi-steady-state model to control the interface shape by adjusting the thermal gradient of the furnace temperatures. Three scenarios are enacted: actuation along the entire external boundary, along the solid portion only, and along the melt portion only. Actuation along the solid only proved to be the most successful of the three scenarios, and produced the unexpected bene£t of a favorable convex interface shape.",

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AB - We consider the feasibility of closed-loop control to control the interface shape of cadmium zinc telluride (CZT) grown via an electrodynamic gradient freeze (EDG) furnace. A simple proportional control algorithm is applied to a quasi-steady-state model to control the interface shape by adjusting the thermal gradient of the furnace temperatures. Three scenarios are enacted: actuation along the entire external boundary, along the solid portion only, and along the melt portion only. Actuation along the solid only proved to be the most successful of the three scenarios, and produced the unexpected bene£t of a favorable convex interface shape.

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Control of interface shape of cadmium zinc telluride grown via an electrodynamic gradient freeze furnace

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