Method and apparatus for microwave phosphor synthesis

Electric heating – Microwave heating – With diverse device

Reexamination Certificate

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C219S678000

Reexamination Certificate

active

07148456

ABSTRACT:
A method of microwave synthesis of phosphors includes a microwave furnace having a microwave chamber; providing starting material in the microwave chamber; and subjecting the starting material to microwaves, whereby the starting material is synthesized into phosphors. An insulation package for use in microwave synthesis is disclosed that includes an insulator having an opening therein, wherein the opening is substantially symmetrically disposed in relation to a central axis of the insulator, and wherein the opening is adapted to receive starting material. A susceptor configuration may be positioned within the cavity, wherein the insulator, the cavity, and the susceptor configuration are substantially symmetrically disposed in relation to an axis of rotation of the insulation package. A microwave furnace for continuous microwave synthesis of phosphors is also disclosed.

REFERENCES:
patent: 4044279 (1977-08-01), Tsuzurahara et al.
patent: 5110216 (1992-05-01), Wickersheim et al.
patent: 6054693 (2000-04-01), Barmatz et al.
patent: 6222168 (2001-04-01), Witonsky et al.
patent: 6263830 (2001-07-01), Kamarehi et al.
patent: 6297479 (2001-10-01), Wefers
patent: 6380525 (2002-04-01), Dalton
patent: 6410896 (2002-06-01), Witonsky et al.
patent: 6442866 (2002-09-01), Wefers
patent: 6552295 (2003-04-01), Markunas et al.
patent: 6803237 (2004-10-01), Manganini et al.
patent: 6943316 (2005-09-01), Konavko et al.
Rustum Roy, S. Komarneni and L.J. Yang; “Controlled Microwave Heating And Melting Of Gels”; J. Am. Ceram. Soc., 68[7] pp. 392-395 (1985).
Yi Fang; “Utilization Of Microwaves In Ceramic Processing”; pp. iii-x (Dec. 1994).
Rustum Roy, D. Agrawal, J.P. Chen and M. Mathis; “Microwave Processing: Triumph Of Applications-Driven Science In WC-Composites And Ferroic Titanates”; Microwaves: Theory And Application In Materials Processing IV; Ceramic Transactions; vol. 80; pp. 3-25; (1993).
Y. Fang, D. K. Agrawal, D. M. Roy and R. Roy; “Fabrication Of Transparent Hydroxyapatite Ceramics By Ambient-Pressure Sintering”; Materials Letters 23; pp. 147-151; (Apr. 1995).
Y. Fang, R. Roy D. K. Agrawal and D. M. Roy; “Transparent Mullite Ceramics FromDiphasic aerogeisBy Microwave And Conventional Processings”; Materials Letters 28; pp. 11-15; (Sep. 1996).
Y. Fang, D. K. Agrawal, D.M. Roy and R. Roy; “Rapid Sintering Of Hydroxyapatite Ceramics By Microwave Processing”; Ceramic Transactions; vol. 21: pp. 348-355; (1991).
Yi Fang; Jiping Cheng; R. Roy, D. M. Roy and D. K. Agrawal; “Enhancing Densification Of Zirconia-Containing Ceramic-Matrix Composites By Microwave Processing”; Journal of Materials Science 32; pp. 4925-4930; (1997).
Y. Fang, D. K. Agrawal and D. M. Roy; “Thermal Stability Of Synthetic Hydroxyapatite”; Hydroxyapatite and Related Materials, ed. P. W. Brown & B. Constants, CRC Press; pp. 269-282; (1994).
Y. Fang, D. K. Agrawal, D. M. Roy, R. Roy and P. W. Brown; “Ultrasonically Accelerated Synthesis Of Hydroxyapatite”; J. Mater, Res., vol. 7, No. 8, pp. 2294-2298; (Aug. 1992).
Yi Fang, Dinesh K. Agrawal, Della M. Roy and Rustum Roy; “Fabrication Of Porous Hydroxyapatite Ceramics By Microwave Processing”; J. Mater Res., vol. 7, No. 2, pp. 490-494; (Feb. 1992).
Dinesh K. Agrawal, Y. Fang, D.M. Roy and R. Roy; “Fabrication Of Hydroxyapatite Ceramics By Microwave Processing”; Mat. Res. Soc. Symp. Proc. vol. 269; pp. 231-236; (1992).
Y. Fang, D. M. Roy, J. Cheng, R. Roy and D. K. Agrawal; “Microwave Sintering Of Hydroxyapatite-Based Composites”; Ceramic Transactions, vol. 36, Am. Ceram. Soc.; pp. 397-407; (1993).
Jiashan Hu, D. K. Agrawal, Yi Fang and R. Roy; “Synthesis Of Hydroxyapatite Using Phosphate-Rich Glasses In The System CaO-P2O5-H2O And Acoustic Waves”; Journal Of Materials Science 28; pp. 5297-5300; (1993).
Yi Fang, Dinesh K. Agrawal, Della M. Roy and Rustum Roy; “Microwave Sintering Of Hydroxyapatite Ceramics”; J. Mater. Res., vol. 9, No. 1, pp. 180-187) (Jan. 1994).
Yi Fang, Jiping Cheng and Dinesh K. Agrawal; “Effect Of Powder Reactivity On Microwave Sintering Of Alumina”; Materials Letters 58; pp. 498-501; (2004).
D. Ravichandran, Shikik T. Johnson, S. Erdei, Rustum Roy and William B. White; “Crystal Chemistry And Luminescence Of The EU2=-Activated Alkaline Earth Aluminate Phosphors”; Displays 19, pp. 197-203; (1999).
D. Ravichandran, Rustum Roy and William B. White; “One Step Microwave Firing Of Ce1-xTbxMgAl11O10Green Phosphors”; Third International Conference On The Science And Technology Of Display Phosphors; 11 pages; (Nov. 3-5, 1997).

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