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Highly-dense and textured Ca3Co4O9 ceramic samples were obtained by a spark plasma sintering (SPS) process. The sintering conditions were modified to optimize the degree of orientation and the bulk densities which are important for their thermoelectric performance. Their thermoelectric properties were measured from room temperature to 1,180 K in air. The maximum power factor was achieved at 1,153 K in the SPS-sintered case because of the maximum electrical conductivity owing to both the degree of orientation and bulk density. In order to improve the thermoelectric performance of this SPS-sintered Ca3Co4O9 system a doping effect with various dopants was also investigated. Ca3Co4O9 samples doped with Ag, Bi, and Na were prepared. Three factors including acceptor doping, a grain boundary phase and elevated mobility caused enhanced electrical conductivities. And these increased electrical conductivities resulted in increased power factors.

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권호기사 목록 테이블로 기사명, 저자명, 페이지, 원문, 기사목차 순으로 되어있습니다.
기사명 저자명 페이지 원문 목차
Characteristics of Cu(In, Ga)Se₂ thin films grown by co-evaporation using a fluxmeter Eundo Kim, Seong Jin Cho pp.193-196

Improvements of thermoelectric transport properties for a partially substituted Ca₃Co₄O₉ system by spark plasma sintering Chang-Hyun Lim, Soon-Mok Choi, Won-Seon Seo, Kyoung Hun Kim, Jong-Young Kim, Hyung-Ho Park pp.197-201

Characteristics of triassic clays and properties of building ceramics H. Baccour Zghal, M. Medhioub, T. Mhiri pp.202-209

Au-assisted growth, Raman spectra, and photoluminescence of Mg₂SiO₄ nanowires Han Gil Na, Tran Van Khai, Dong Sub Kwak, Yong Jung Kwon, Kwang Bo Shim, Sung Soo Kim, Hyeonsik Cheong, Hyoun Woo Kim pp.210-214

Synthesis of nanoscale SmFe intermetallic phases by a reduction-diffusion process of a powder mixture of Sm₂O₃-CaH₂-Fe Joon-Chul Yun, Jai-Sung Lee pp.215-220

Rapid synthesis of hydroxyapatite nanopowders by a microwave-assisted combustion method Nagmeh Bovand, Sousan Rasouli, Mohammad-Reza Mohammadi, Davood Bovand pp.221-225

Pressureless-sintering of reaction bonded silicon nitride containing cordierite Chan Park, Kook-Soo Bang, Dong-Soo Park, Hai-Doo Kim, Steven Danyluk pp.226-230

An XPS study of titanium-chromium nitride Ti,Cr N nanopowder prepared by heat treatment in flowing nitrogen gas Kyungsun Song, Chang-Yul Suh, Sung-Wook Cho, Jong-Seong Bae, In-Jin Shon, Wonbaek Kim pp.231-234

Sintering behavior and microwave dielectric properties of (Mg_0.95_Zn_0.05_)₂(Ti_0.8_Sn_0.2_)O₄ ceramics G.G. Yao, P. Liu pp.235-238

Preparation of silicon oxycarbide amorphous ceramics from polymer precursors and the characterization of their high temperature stability Eunjeong Jeon, Haengman Kim, Jondo Yun pp.239-242

Effect of a polymer addition on the crystallite size and sinterability of hydroxyapatite prepared with CaO powder and phosphoric acid Sang-Jin Lee, Ji-Yeon Kwak, Waltraud M. Kriven pp.243-247

The effect of manganese doping on the grain size and transition temperature of barium titanate ceramics Rafiqul Islam, Shamima Choudhury, S.N. Rahman, Mohammad Jellur Rahman pp.248-251

The effect of preparation conditions on the properties of Li₃V₂PO4 ₃ cathode powders prepared by ultrasonic spray pyrolysis You Na Ko, Jung Hyun Kim, Young Jun Hong, Yun Chan Kang pp.252-257

Effect of Ca doping on the thermoelectric properties of SrCu₂O₂ Octolia Togibasa Tambunan, Il-Ho Kim, Bo Wha Lee, Chunli Liu pp.258-261

Rapid synthesis of mullite powders Remzi Gören, Cem Özgür pp.262-266

The effect of the pore structure of a high surface area hydrated lime in a humid environment Taimin Noh, Hyun-Gyoo Shin, Ho Hwan Chun, Herbert Giesche, Heesoo Lee pp.267-271

Theeffect of milling time on the properties of binderless nanost[r]uctured (W,Ti)C consolidated by pulsed current activated sintering In-Jin Shon, Kwon-Il Na, Wonbaek Kim, Jae-Won Lim, Jung-Mann Doh, Jin-Kook Yoon pp.272-277

Influence of the properties of corundum aggregates on the strength and slag resistance of refractory castables Wen Yan, Nan Li, Zheng Miao, Guangping Liu, Yuanyuan Li pp.278-282

Hydrothermal synthesis and highly visible light-induced photocatalytic activity of acid functionalized MWCNTs as support for ZnS-photosensitized TiO₂ catalysts Lei Zhu, Chang Sung Lim, Ze-Da Meng, Jong-Geun Choi, Chong-Yeon Park, Trisha Ghosh, Kwang Youn Cho, Won-Chun Oh pp.283-290

MAS synthesis and characterization of Sr₃V₂O₈ nanoparticles Kwang Bo Shim, Chang Sung Lim pp.291-295

The effect of a reinforcement phase on the oxidation mechanism of ZrB₂-YAGAl₂O₃ ceramcis Jie-Guang Song, Fang Wang, Ming-Han Xu, Shi-Bin Li, Gang-Chang Ji pp.296-300

Synthesis of Cu₂ZnSnS₄ thin film absorbers by sulfurizing dip-coated precursors Tuan Truong Mau, Kyoo Ho Kim pp.301-304

Efficient visible light photocatalysis in cubic Sr₂FeNbO₆ E.D. Jeong, S.M. Yu, J.Y. Yoon, J.S. Bae, C.R. Cho, K.T. Lim, Rekha Dom, P.H. Borse, H.G. Kim pp.305-309

Effect of SiO₂ additives on the microstructure and energy storage density of SrTiO₃ ceramics Guanghui Zhao, Yiqiu Li, Hanxing Liu, Jing Xu, Hua Hao, Minghe Cao, Zhiyong Yu pp.310-314

Preparation and hydrogen storage properties of BaZr_0.65_Ce_0.2_Y_0.1_Rb_0.05_O_3-δ_ as the negative electrode of a hydrogen battery D.-K. Lim, K.-C. Lee, C.-N. Park, S.-J. Song pp.315-318

Synthesis of LiCoO₂ nano powders using recycled cobalt precursors from waste WC-Co hard metal Heeseung Yang, Jae-Hwan Pee, Hyung Tae Kim, YooJin Kim pp.319-323

Aqueous tape casting of SDC with a multifunctional dispersant Xibao Li pp.324-329

Lightweight aggregate with wet magnetic separated reject ash and dredged soil Yooteak Kim, Yunjae Choi, Changsub Jang pp.330-337

Charging characteristics of Ru nanocrystals embedded in Al₂O₃ matrix prepared by using the initial growth stage of Ru plasma-enhanced atomic layer deposition Won-Sub Kwack, Hyun-Jin Choi, Woo-Chang Choi, Heung-Ryong Oh, Seung-Yong Shin, Kyoung Il Moon, Ji-Yeon Kwak, Young-Keun Jeong, Se-Hun Kwon pp.338-342

Effect of sugar and citric acid as precursors in ZrO₂ nanopowder preparation at low calcination temperatures Rifki Septawendar, Bambang Sunendar Purwasasmita, Suhanda Sutardi, Naili Sofyaningsih, Wahyudi Kristanto pp.343-348

Sonochemical synthesis of highly sinterable/nanocrystalline CeO₂-based electrolyte powders for intermediate-temperature solid oxide fuel cells Eun-Hui Hyeong, Seung-Muk Bae, Chan-Rok Park, Jong-Sung Park, Young-Sung Yoo, Hee-Sun Yang, Jin-Ha Hwang pp.349-352

참고문헌 (13건) : 자료제공( 네이버학술정보 )

참고문헌 목록에 대한 테이블로 번호, 참고문헌, 국회도서관 소장유무로 구성되어 있습니다.
번호 참고문헌 국회도서관 소장유무
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7 T. Takeuchi, T. Kondo, K. Soda, U. Mizutani, R. Funahashi, M. Shikano, S. Tsuda, T. Yokoya, S. Shin and T. Muro, J. Electron. Spectrosc. Relat. Phenom. 137 (2004) 595-599. 미소장
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10 H. Itahara, J. Sugiyama and T. Tani, Jpn. J. Appl. Phys. 43(2004) 5134-5139. 미소장
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