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TECHNICAL PAPERS: Gas Turbines: Microturbines and Small Turbomachinery

Microscale Radial-Flow Compressor Impeller Made of Silicon Nitride: Manufacturing and Performance

[+] Author and Article Information
Sangkyun Kang

Samsung Advanced Institute of Technology, MEMS Laboratory, SAIT P.O. Box 111, Suwon 440-600, Koreae-mail: sangkyun.kang@samsung.com

James P. Johnston, Friedrich B. Printz

Department of Mechanical Engineering, Stanford University, Stanford, CA 94305

Toshiyuki Arima, Minoru Matsunaga, Hideaki Tsuru

Wako Research Center, Honda R&D Company, Ltd., Saitama, Japan

J. Eng. Gas Turbines Power 126(2), 358-365 (Jun 07, 2004) (8 pages) doi:10.1115/1.1739246 History: Received October 01, 2002; Revised March 01, 2003; Online June 07, 2004
Copyright © 2004 by ASME
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References

Figures

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CAD model of compressor
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Fracture behavior of ceramic specimens under the identical loading conditions
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Mold SDM process build sequence example
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Cross section of inlet nozzle block, rotor group, bearings, and mounting unit
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Rotor group mounted on ball bearings
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Compressor rotor in test rig showing measurement stations and instruments
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Pressure ratio at 420,000 rpm
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Temperature rise at 420,000 rpm
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Pressure ratio at various rotor speeds with a curve of flow similarity
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Adiabatic efficiency at 800 krpm and 420 krpm based on three pressures
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Adiabatic efficiency and its uncertainty versus rotor speed along a trajectory of flow rate similitude

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