서지주요정보
PLZT 에 NiO 와 $MnO_2$ 가 유전 특성 압전 특성 및 분극-반전 특성에 미치는 영향 = The dielectric, piezoelectric and polarization-reversal properties of PLZT doped with NiO and $MnO_2$
서명 / 저자 PLZT 에 NiO 와 $MnO_2$ 가 유전 특성 압전 특성 및 분극-반전 특성에 미치는 영향 = The dielectric, piezoelectric and polarization-reversal properties of PLZT doped with NiO and $MnO_2$ / 조경익.
발행사항 [서울 : 한국과학기술원, 1981].
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소장정보

등록번호

4001284

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8124

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반납예정일

리뷰정보

초록정보

Effects of additives (NiO, $MnO_2$) on the dielectric, piezoelectric and polarization-reversal properties of ($Pb_{0.936}La_{0.064}$) $(Zr_{0.60}Ti_{0.40})O_3$ ceramics have been investigated. The specimens were prepared by the mixed oxide technique and atmosphere sintering method. The specimens were sintered at 1050℃ for 1 hour, 2 hours, and 3 hours in $O_2$ atmosphere. All the specimens thus obtained had tetragonal structures. The dielectric constant and dissipation factor decreased with the addition of NiO or $MnO_2$. They had broadened maxima and their peak temperatures were not same. The frequency dependence of Curie temperature was not observed. However, Curie temperature increased with the addition of NiO, but decreased with the addition of $MnO_2$. The planar coupling factor was improved by addition of NiO and also increased with increasing sintering time. Addition of $MnO_2$ yielded a markedly high mechanical quality factor. The space-charge field decreased with the addition of NiO, but increased with the addition of $MnO_2$. The planar coupling factor and space-charge field showed same dependence on the additives. The tetragonality, Curie temperature and planar coupling factor of ($Pb_{0.936}La_{0.064}$) $(Zr_{0.568}Ni_{0.032}Ti_{0.40})O_3$ were higher than those of ($Pb_{0.936}La_{0.064}$) $(Zr_{0.568}Ni_{0.032}Ti_{0.40})_{0.984}O_3$, but the grain size, lattice parameter, dielectric constant, dissipation factor, mechanical quality factor and space-charge field of the former were lower than those of the latter. The planar coupling factor did not always decrease by the polarization-reversal field. This phenomenon cannot be explained by the space-charge model proposed by Okazaki et al.

서지기타정보

서지기타정보
청구기호 {MMS 8124
형태사항 [iv], 62 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kyoung-Ik Cho
지도교수의 한글표기 : 주웅길
지도교수의 영문표기 : Woong-Kil Choo
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 57-62
주제 Dielectrics.
Piezoelectricity.
Curie temperature.
Space charge.
첨가물 효과. --과학기술용어시소러스
유전 분극. --과학기술용어시소러스
압전 재료. --과학기술용어시소러스
공간 전하. --과학기술용어시소러스
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