The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 1997
Filed:
Jun. 06, 1995
Applicant:
Inventors:
Joseph L Katz, Baltimore, MD (US);
Philippe F Miquel, Towson, MD (US);
Assignee:
The Johns Hopkins University, Baltimore, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C01B / ;
U.S. Cl.
CPC ...
423593 ; 423592 ; 501-1 ; 501 94 ; 264 12 ; 264121 ; 264122 ; 419-1 ;
Abstract
Ceramic oxide powders and methods for their preparation are revealed. Ceramic oxide powders are obtained using a flame process whereby one or more precursors of ceramic oxides are introduced into a counterflow diffusion flame burner wherein the precursors are converted into ceramic oxide powders. The nature of the ceramic oxide powder produced is determined by process conditions. The morphology, particle size, and crystalline form of the ceramic oxide powders may be varied by the temperature of the flame, the precursor concentration ratio, the gas stream and the gas velocity.