32 0

Densification of nanocrystalline ITO powders in fast firing: effect of specimen mass and sintering atmosphere

Title
Densification of nanocrystalline ITO powders in fast firing: effect of specimen mass and sintering atmosphere
Author
이재성
Keywords
ceramics; nanostructures; chemical synthesis; microstructure
Issue Date
2005-02
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
MATERIALS RESEARCH BULLETIN, v. 40, No. 2, Page. 395-404
Abstract
Nano-sized indium tin oxide (ITO) powders were prepared by a coprecipitation method, and the sintering characteristics in fast firing were examined. The mass of the specimen, sintering atmosphere and sintering temperature varied. Oxygen atmosphere promoted the densification in normal rate sintering, while oxygen inhibited the densification in fast firing. Fast firing severely retarded densification as the mass of the specimen and the sintering temperature increased. This was explained by differential densification, which could easily occur in conditions with a high densification rate and a high thermal gradient in the specimen, where the outer region of the specimen densifies much faster than the center. Once the highly densified outer skeleton is formed, the inside of the specimen is difficult to densify because the outer skeleton geometrically constrains densification. (C) 2004 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0025540804003204https://repository.hanyang.ac.kr/handle/20.500.11754/110189
ISSN
0025-5408; 1873-4227
DOI
10.1016/j.materresbull.2004.10.006
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE