Title:
SYNTHESIS METHOD OF YTTRIA NANO-POWDER USING PVA AT LOW TEMPERATURE
Document Type and Number:
WIPO Patent Application WO/2012/033252
Kind Code:
A1
Abstract:
The present invention relates to a synthesis method of a porous yttria powder of a high purity at low temperature. The method comprises the following steps: preparing the starting material, yttrium nitrate (Y(NO3)39H2O); dissolving the starting material in distilled water; adding a polyvinyl alcohol (PVA) solution to the distilled water to form a yttrium precursor; heat stirring and drying the precursor to form a gel-type precursor; and removing the PVA and heat treating the precursor to form a nanocrystal structure.
Inventors:
LEE, Sang Jin (1 Halla Vivaldi Apt, 1321Ogam-don, Mokpo-si Jeollanam-do 530-420, 530-420, KR)
이상진 (전라남도 목포시 옥암동 1321 한라비발디아파트 103동 1501호, 530-420 Jeollanam-do, 530-420, KR)
이상진 (전라남도 목포시 옥암동 1321 한라비발디아파트 103동 1501호, 530-420 Jeollanam-do, 530-420, KR)
Application Number:
KR2010/007269
Publication Date:
March 15, 2012
Filing Date:
October 22, 2010
Export Citation:
Assignee:
MOKPO NATIONAL UNIVERSITY INDUSTRY-ACADEMIA COOPERATION GROUP (61 Dorim-ri, Cheonggye-myeonMuan-gun, Jeollanam-do 534-729, 534-729, KR)
목포대학교산학협력단 (전라남도 무안군 청계면 도림리 61, 534-729 Jeollanam-do, 534-729, KR)
LEE, Sang Jin (1 Halla Vivaldi Apt, 1321Ogam-don, Mokpo-si Jeollanam-do 530-420, 530-420, KR)
목포대학교산학협력단 (전라남도 무안군 청계면 도림리 61, 534-729 Jeollanam-do, 534-729, KR)
LEE, Sang Jin (1 Halla Vivaldi Apt, 1321Ogam-don, Mokpo-si Jeollanam-do 530-420, 530-420, KR)
International Classes:
C01F17/00; B82B3/00
Attorney, Agent or Firm:
IAM PATENT FIRM (502 Hyejeon Bldg, 652-3Yeoksam-dong, Gangnam-gu, Seoul 135-080, 135-080, KR)
Claims: