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기계화학공정에 의한 (Pb, La)TiO3 나노 분말의 합성 및 소결 특성 연구Research on Synthesis and Sintering Behavior of Nano-sized (Pb, La)TiO3 Powders Using Mechano Chemical Process
- Other Titles
- Research on Synthesis and Sintering Behavior of Nano-sized (Pb, La)TiO3 Powders Using Mechano Chemical Process
- Issue Date
- Apr-2010
- Publisher
- 한국분말야금학회
- Keywords
- Lanthanum-modified lead-titanate; Perovskite structure; Ferroelectric ceramic; Sintering agent
- Citation
- 한국분말야금학회지, v.17, no.2, pp 101 - 106
- Pages
- 6
- Indexed
- KCI
- Journal Title
- 한국분말야금학회지
- Volume
- 17
- Number
- 2
- Start Page
- 101
- End Page
- 106
- ISSN
- 1225-7591
2287-8173
- Abstract
- In this study, we successfully synthesized a nano-sized lanthanum-modified lead-titanate (PLT)powder with a perovskite structure using a high-energy mechanochemical process (MCP). In addition, the sintering behavior of synthesized PLT nanopowder was investigated and the sintering temperature that can make the full dense PLT specimen decreased to below 1050oC by using Bi2O3 powder as sintering agent. The pure PLT phase of perovskite structure was formed after MCP was conducted for 4 h and the average size of the particles was approximately 20 nm. After sintered at 1050 and 1150oC, the relative density of PLT was about 93.84 and 95.78%, respectively. The density of PLT increased with adding Bi2O3 and the specimen with the relative densitiy over 96% were fabricated below 1050oC when 2 wt% of Bi2O3 was added.
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Related Researcher
- CHOA, YONG HO
- ERICA 첨단융합대학 (ERICA 신소재·반도체공학전공)