메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국전기전자재료학회 전기전자재료학회논문지 전기전자재료학회논문지 제23권 제12호
발행연도
2010.1
수록면
942 - 948 (7page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
In this study we aims to examine the effects of 0.5 mol% Cr2O3 addition on the reaction,microstructure development, resultant electrical properties, and especially the bulk trap and interface state levels of ZnO-Bi2O3-Sb2O3 (Sb/Bi=0.5, 1.0, and 2.0) systems (ZBS). The samples were prepared by conventional ceramic process, and characterized by XRD, density, SEM, I-V, impedance and modulus spectroscopy (IS &MS) measurement. The sintering and electrical properties of Cr-doped ZBS (ZBSCr) systems were controlled by Sb/Bi ratio. Pyrochlore (Zn2Bi3Sb3O14) was decomposed more than 100℃ lowered on heating in ZBS (Sb/Bi=1.0)by Cr doping. The densification of ZBSCr (Sb/Bi=0.5) system was retarded to 800℃ by unknown Bi-rich phase produced at 700℃. Pyrochlore on cooling was reproduced in all systems. And Zn7Sb2O12 spinel (α-polymorph)and δ-Bi2O3 phase were formed by Cr doping. In ZBSCr, the varistor characteristics were not improved drastically (non-linear coefficient α = 7∼12) and independent on microstructure according to Sb/Bi ratio. Doping of Cr2O3 to ZBS seemed to form ··(0.16 eV) and ∙ (0.33 eV) as dominant defects. From IS & MS, especially the grain boundaries of Sb/Bi=0.5 systems were divided into two types, i.e. sensitive to oxygen and thus electrically active one (1.1 eV) and electrically inactive intergranular one (0.95 eV) with temperature.

목차

등록된 정보가 없습니다.

참고문헌 (13)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0