서지주요정보
0.9Pb$(Mg{1/3}Nb{2/3})O_3$-0.1PbTiO3 세라믹스의 소결조건에 따른 유전특성 및 미세구조 = Dielectic property and microstructure of 0.9Pb$(Mg{1/3}Nb{2/3})O_3$-0.1PbTiO3 with sintering condition
서명 / 저자 0.9Pb$(Mg{1/3}Nb{2/3})O_3$-0.1PbTiO3 세라믹스의 소결조건에 따른 유전특성 및 미세구조 = Dielectic property and microstructure of 0.9Pb$(Mg{1/3}Nb{2/3})O_3$-0.1PbTiO3 with sintering condition / 이봉규.
저자명 이봉규 ; Lee, Bong-Kyu
발행사항 [대전 : 한국과학기술원, 1993].
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소장정보

등록번호

8003779

소장위치/청구기호

학술문화관(문화관) 보존서고

MCM 93004

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Lead magnesium niobate $[Pb(Mg_\frac{1}{3}Nb_\frac{2}{3})O_3]$ is a relaxor ferroelectrics with a disordered perovskite structure. It was known that a statistical inhomogeneity in the distribution of $Mg^{2+}$ and $Nb^{5+}$ ions in the B-sites of an $ABO_3$ perovskite lattice leads to a wide Curie temperature range and relaxor ferroelectric characteristic. With 10 mol % $PbTiO_3$ substitution its Curie temperature, dielectric constant and strain by electric field is increased so applicable to not only high permittivity capacitor but also electrostrictive actuator. Nearly pyrochlore-free perovskite structure was obtained by columbite precursor method and double calcination. From TEM selected area diffraction patterns it is certain that ordering in B-site ions is partially formed and microinhomogeneity like that comprises relaxor characteristic. As sintering temperature rises, grain size and dielectric constant increase without appreciable change of density. And the intensity of ordering spot brightens relatively. The dielectric constant change with sintering temperature is due to grain size effect and change of short range ordering.

서지기타정보

서지기타정보
청구기호 {MCM 93004
형태사항 [iii], 53 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Bong-Kyu Lee
지도교수의 한글표기 : 김호기
지도교수의 영문표기 : Ho-Gi Kim
학위논문 학위논문(석사) - 한국과학기술원 : 무기재료공학과,
서지주기 참고문헌 : p. 51-53
주제 Microstructure.
Sintering.
Dielectrics.
Actuators.
세라믹스. --과학기술용어시소러스
소결. --과학기술용어시소러스
미세 구조. --과학기술용어시소러스
유전률. --과학기술용어시소러스
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