Chang Won Ahn - Dissemin

Papers authored by Chang Won Ahn

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2011 Ilkyoung Jeong, Chang Yeol Park, Dong Jin Kim, Sun-Hwa Kim, Byung Kee Moon, Ill Won Kim, Chang Won Ahn

Neutron total scattering studies on A-site disorder in lead-free ferroelectric Bi0.5(Na1-xKx)0.5TiO3

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2010 Aman Ullah, Chang Won Ahn

, Ali Hussain, Ill Won Kim

The effects of sintering temperatures on dielectric, ferroelectric and electric field-induced strain of lead-free Bi0.5(Na0.78K0.22)0.5TiO3 piezoelectric ceramics synthesized by the sol–gel technique

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Sun Young Lee, Jin Soo Kim, Chang Won Ahn

, Hak In Hwang, Ill Won Kim

Impedance Spectroscopy and Relaxation Phenomena of (Na,K) Excess Na0.5K0.5NbO3 Thin Films Grown by Chemical Solution Deposition

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A. Hussain, C. W. Ahn

, A. Ullah, J. S. Lee, I. W. Kim

The Effect of Sintering Temperature on Lead-Free Bi 0.5 (Na 0.78 K 0.22 ) 0.5 TiO 3 -(Na 0.5 K 0.5 )NbO 3 Ceramics

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Aman Ullah, Chang Won Ahn

, Ki Bong Jang, Ali Hussain, Ill Won Kim

Phase Transition and Electrical Properties of BiAlO3-Modified (Bi0.5Na0.5)TiO3Piezoelectric Ceramics

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Jin Soo Kim, Chang Won Ahn

, Ill Won Kim, Sang-Bock Cho, Chang Hee Chung, Ho Sueb Lee

Dielectric Relaxation and Electrical Properties of Lead-Free LiNbO 3 -Substituted Na 0.5 K 0.5 NbO 3 Ferroelectric Ceramics

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Ky-Nam Pham, Ali Hussain, Chang Won Ahn

, Won Kim, Soon Jong Jeong, Jae-Shin Lee

Giant strain in Nb-doped Bi0.5(Na0.82K0.18)0.5TiO3 lead-free electromechanical ceramics

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Jin Soo Kim, Sun Young Lee, Chang Won Ahn

, Hak In Hwang, Hai Joon Lee, Se Hwan Bae, Ill Won Kim

Leakage Current Characteristics of Lead-Free K0.5Na0.5NbO3Ferroelectric Thin Films with (K,Na) Excess and Li Substitution

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Chang Won Ahn

, Hak-In Hwang, Kwang Sei Lee, Byung Moon Jin, Sungmin Park, Gwangseo Park, Doohee Yoon, Hyeonsik Cheong, Hai Joon Lee, Ill Won Kim

Raman Spectra Study of K0.5Na0.5NbO3Ferroelectric Thin Films

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Aman Ullah, Chang Won Ahn

, Ill Won Kim

Phase transition, microstructure and electric-field-induced large strain in Bi0.5(Na0.85K0.15)0.5TiO3-BiAlO3 lead-free piezoelectric ceramics

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Aman Ullah, Chang Won Ahn

, Ali Hussain, Sun Young Lee, Hai Joon Lee, Ill Won Kim

Phase Transitions and Large Electric Field-Induced Strain in BiAlO3-Modified Bi0.5(Na,K)0.5TiO3 Lead-Free Piezoelectric Ceramics

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Aman Ullah, Chang Won Ahn

, Ali Hussain, Ill Won Kim, Hak-In Hwang, Nam-Kyu Cho

Structural Transition and Large Electric Field-Induced Strain in BiAlO3-Modified Bi0.5(Na0.8K0.2)0.5TiO3 Lead-Free Piezoelectric Ceramics

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Ali Hussain, Chang Won Ahn

, Aman Ullah, Jae Shin Lee

, Ill Won Kim

Effects of Hafnium Substitution on Dielectric and Electromechanical Properties of Lead-free Bi0.5(Na0.78K0.22)0.5(Ti1-xHfx)O3Ceramics

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Ali Hussain, Chang Won Ahn

, Jae Shin Lee

, Aman Ullah, Ill Won Kim

Large Electric-Field-Induced Strain in Zr-Modified Lead-Free Bi0.5(Na0.78K0.22)0.5TiO3 Piezoelectric Ceramics

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A. Hussain, C. W. Ahn

, H. J. Lee, I. W. Kim, J. S. Lee, S. J. Jeong, S. K. Rout

Anisotropic Electrical Properties of Bi0.5(Na0.75K0.25)0.5TiO3 Ceramics Fabricated by Reactive Templated Grain Growth (RTGG)

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2009 Euh Duck Jeong, Hye Jin Kim, Chang Won Ahn

, Myoung Gyu Ha, Tae Eun Hong, Hyun Gyu Kim, Jong Sung Jin, Jong Sung Bae, K. S. Hong, Yang-Soo Kim, Hae-Jin Kim, C. H. Doh, H. S. Yang

Synthesis and Electrochemical Studies of Nano-Scale Carbon-Coated LiFePO₄ Electrodes for Li-Ion Batteries

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S. K. Rout, A. Hussain, E. Sinha, C. W. Ahn

, I. W. Kim

Electrical anisotropy in the hot-forged CaBi4Ti4O15 ceramics

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Hai Joon Lee, Ill Won Kim, Jin Soo Kim, Chang Won Ahn

, Bae Ho Park

Ferroelectric and Piezoelectric Properties of Na0.52K0.48NbO3 Thin Films Prepared by Radio Frequency Magnetron Sputtering

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Lee Kwang-Sei, Kang SunHee, Hai Joon Lee, Lee HaiJoon, Sun Hee Kang, Kim IllWon, Ill Won Kim, Kim JinSoo, Jin Soo Kim, Chang-Won Ahn

Electrical Conductivity in KHCO_3

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S. K. Rout, E. Sinha, A. Hussian, J. S. Lee

, C. W. Ahn

, I. W. Kim, S. I. Woo

Phase transition in ABi4Ti4O15 (A=Ca,Sr,Ba) Aurivillius oxides prepared through a soft chemical route

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Papers authored by Chang Won Ahn