Mn-Co-Ni계 NTC 서미스터 제조 및 특성
Preparation and characterization of Mn-Co-Ni NTC thermistor
0
조회
0
다운로드
3
인용
0
참고문헌
초록
상온용 NTC 서미스터로는 주로 Mn-Co-Ni 산화물계가 주료 사용된다. 본 연구에서는 Mn-Co-Ni 산화물계 분말을 이용하여 상온에서 가압 성형하여 900~1300oC 온도범위에서 3시간 동안 소결하여 서미스터 소자를 제작하였다. 소결온도에 따른 서미스터 세라믹 샘플의 상변화, 소결밀도, 미세구조 및 원소함량비 변화를 고찰하였다. 1250oC에서 소결된 Mn- Co-Ni 서미스터 소자에 대하여 온도에 대한 저항특성을 측정하였으며, 측정되는 절대온도의 역수와 저항의 로그함수값에대한 변화를 고찰하였다.
Abstract
Mn-Co-Ni oxide system has been used as the NTC thermistors for normal temperature applications. Mn-Co-Ni oxide-based thermistors were sintered at different temperatures for a constant processing time from 900 to 1300 o C for 3 h. The crystal structure, bulk density, microstructure and chemical composition were characterized by XRD, FE-SEM and WD-XRF. The plot of the resistance versus measuring temperature was characterized for the sintered sample at the 1250 o C. Moreover, the relationship between log resistivity and reciprocal of absolute temperature of the NTC thermistor was investigated.
참고문헌 (18)
- New thermistor materials, "H. Takuoki", ~, pp.National Technical Report 1123 (1982)
- J.-R. Yoon, "Electrical properties as the ratio of ZnO", Mn3O4 of NTC thermistor with Mn3O4-NiO-CuO-Co3O4-ZnO system for inrush current limited, 2000, pp.13(6), 472~
- K. Uh, "Properties and applications of NTC thermistor", J. Electronic Engineering Soc, 21(8), pp.19~ (1994)
- K.-C. Chang, "A study of interface reaction and co-firing characteristics between Mn-spinel and Fe-spinels", J. Kor. Ceram. Soc, 37(10), pp.994~ (2000)
- A. Rousset, "Recent progress in the fabrication of ceramics negative temperature coefficient termistors", J. European Ceram. Soc, 13, pp.185~ (1994)
- M. Suzuki, "AC hopping condcution in Mn-Co-Ni-Cu complex oxide semiconductors with spinel structure", J. Phys. Chem. Solids, 41, pp.1253~ (1980)
- E.G. Larson, "Preparation, semiconduction and low temperature magnetization of the system Ni1 − xMn2 + xO4", J. Phys. Chem. Solids, 23, pp.1771~ (1962)
- B. Gillot, "Ionic configuration and cation distribution in cubic nickel manganite spinels NixMn3 − xO4(0.57 < x < 1) in relation with thermal histories", Solid State Ionics, 58, pp.155~ (1992)
- M. Reggio, "A linear ohmmeter for resistors having negative temperatrue coefficient", J. Phys. E: Sci. Instrum, 12, pp.173~ (1979)
- M. Faraday, "On conducting power generally", pp.119~ (1833), Royal Institution
- S. Ruben, "Electrical pyrometer resistance", U.S. Patent #2021491, ~ (1930)
- J. Amstel, "Electrical resistance material", U.S. Patent #2111708, ~ (1935)
- D. S. Erickson, "Nonstoichiometry, cation distribution and electrical properties in Fe3O4-CoFe2O4at high temperature", J. Solid State Chem, 59, pp.42~ (1985)
- E. D. Macklen, "Electrical conductivity and cation distribution in nickel manganite", J. Phys. Chem. Solids, 47, pp.1073~ (1986)
- P. Fau, "Thin films of nickel manganese oxide for NTC thermistor applications", Appl. Surf. Sci, 65, pp.66 (1993), 319~
- A. Feteira, "Negative temperature coefficient resistance (NTCR) ceramic thermistors: An industrial perspective", J. Am. Ceram. Soc, 92(5), pp.967~ (2009)
- R. Metz, "Electrical properties of N.T.C. thermistors mad of manganite ceramics of general spinel structure", J. Mater. Sci, 35, pp.4705~ (2000)
- D. Houivet, "High temperature NTC ceramic resistors", J. Eur. Ceram. Soc, 24(6), pp.1237~ (2004)