Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The effect of Y/Mn ratio on sintering and electrical properties of YMnO$_3$ ceramics

Y/MH의 혼합비가 YMnO$_3$ 세라믹의 소결 및 전기적 특성에 미치는 영향

  • 김재윤 (부경대학교 전자공학과) ;
  • 김부근 (부경대학교 전자공학과) ;
  • 김강언 (부경대학교 전자공학과) ;
  • 정수태 (부경대학교 전자공학과) ;
  • 조상희 (경북대학교 무기재료공학과)
  • Published : 1999.05.01
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Abstract

In this paper, we have investigated YMnO$_3$ bulk ceramics, which was made by Mixed oxide method, with Y/Mn ratios of 0.80/1.20, 0.90/1.10, 0.95/1.05, 1.00/1.00, 1.05/0.95 and 1.10/0.90. The samples crystall structure with Y/Mn ratios of 0.95/1.05 was hexagonal structure. The physical properties of YMnO$_3$ ceramics were divided into two groups, the sample with Y/Mn ratios of 0.80/1.20, 0.90/1.10 and 0.95/1.05 is classified to Mn rich sample, and with Y/Mn ratios of 1.00/1.00, 1.05/0.95 and 1.10/0.90 is classified to Y rich sample. The sintering and dielectric properties of this sample were summarized as following sintering density of Mn rich sample was increased. Dissipation factor of Mn rich sample was small The dielectric constant, dissipation factor of sample with Y/Mn ratio (0.90/1.10) were 37, 0.017 respectively at measured 1MHz

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