US2014322537A1PendingUtilityA1

Method of manufacturing ceramic powder having perovskite structure and ceramic powder having perovskite structure manufactured using the same

Assignee: SAMSUNG ELECTRO MECHPriority: Mar 2, 2011Filed: Jul 3, 2014Published: Oct 30, 2014

Est. expiryMar 2, 2031(~4.6 yrs left)· nominal 20-yr term from priority

Inventors:Chang Hak Choi Kum Jin Park Kang Heon Hur Hye Young Baeg Jung-Hwan Kim Hyung Joon Jeon Sang Hoon Kwon

C04B 35/4682C04B 35/48C04B 35/465C01G 23/00C04B 35/49B82Y 30/00Y02P20/54C01P 2002/34C01P 2004/62C01P 2006/40C04B 2235/761C01P 2004/03Y10T428/2982C04B 2235/5445C01G 25/006C01P 2002/77C04B 2235/5454C04B 35/6264C01P 2004/64C01P 2004/04C01P 2006/12C04B 2235/768C04B 2235/5409C01G 23/006

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Claims

Abstract

There are provided a method of manufacturing a ceramic powder having a perovskite structure and a ceramic powder having a perovskite structure manufactured by the same. The method includes: mixing a compound of an element corresponding to site A in an ABO 3 perovskite structure as well as a compound of an element corresponding to site B in the same structure, with supercritical water in a continuous mode to form seed crystals; and mixing the seed crystals in a batch mode to conduct grain growth thereof.

Claims

exact text as granted — not AI-modified

1 - 12 . (canceled) 
     
     
         13 . A ceramic powder having an ABO 3  perovskite structure, the ceramic powder manufactured by:
 mixing a compound of an element corresponding to site A of the structure as well as a compound of an element corresponding to site B of the structure with supercritical water in a continuous mode to form seed crystals; and   mixing the seed crystals in a batch mode to conduct grain growth thereof.   
     
     
         14 . The ceramic powder of  claim 13 , wherein the seed crystals have an average particle diameter ranging from 3 to 20 nm and a crystal axis ratio (c/a) ranging from 1.001 to 1.004. 
     
     
         15 . The ceramic powder of  claim 13 , wherein the ceramic powder obtained after the grain growth has an average particle diameter ranging from 50 to 150 nm and a crystal axis ratio (c/a) ranging from 1.005 to 1.010.

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