Microwave synthesis of lamp phosphors

Chris Y. Fang, Dinesh K. Agrawal, Joan M. Coveleskie, Chung Nin Chau, James C. Walck

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Lamp phosphors including [Ca10 (PO4)6 (Cl,F):Sb:Mn], (Y,Eu) 2O3, BaMgAl10O17:Eu, and (La,Ce)PO4:Ce:Tb, with or without flux, have been synthesized by a microwave processing technique in a multimode microwave furnace operating at 2.45 GHz. The microwave-synthesized phosphors were comprehensively characterized for particle size, specific surface area, brightness, and luminescence. Although most properties of the microwave-synthesized phosphors were comparable to that of the conventional products, the kinetics of the phosphor synthesis was substantially enhanced in the microwave process. As a result, the soaking time at the peak temperature was reduced by up to 90% compared to a conventional process. In addition, the required synthesis temperature was also lowered by 100-200°C in microwave process, compared to the conventional process for these lamp phosphors. The advantages of microwave process for the lamp phosphor synthesis are obvious.

Original languageEnglish (US)
Title of host publicationProceedings Book - 11th International Conference on Microwave and High Frequency Heating, AMPERE 2007
EditorsIoan Mircea Gordan, Alexandru Marius Silaghi
PublisherUniversity of Oradea
Pages121-124
Number of pages4
ISBN (Electronic)9789737593337
StatePublished - Jan 1 2007
Event11th International Conference on Microwave and High Frequency Heating, AMPERE 2007 - Oradea, Romania
Duration: Sep 3 2007Sep 6 2007

Publication series

NameProceedings Book - 11th International Conference on Microwave and High Frequency Heating, AMPERE 2007

Conference

Conference11th International Conference on Microwave and High Frequency Heating, AMPERE 2007
CountryRomania
CityOradea
Period9/3/079/6/07

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Fang, C. Y., Agrawal, D. K., Coveleskie, J. M., Chau, C. N., & Walck, J. C. (2007). Microwave synthesis of lamp phosphors. In I. M. Gordan, & A. M. Silaghi (Eds.), Proceedings Book - 11th International Conference on Microwave and High Frequency Heating, AMPERE 2007 (pp. 121-124). (Proceedings Book - 11th International Conference on Microwave and High Frequency Heating, AMPERE 2007). University of Oradea.