A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SEMICONDUCTOR CERAMIC COMPOSITION FOR NEGATIVE CHARACTERISTIC THERMISTOR, AND NEGATIVE CHARACTERISTIC THERMISTOR
PROBLEM TO BE SOLVED: To provide a NTC thermistor which has a resistance value unsusceptible to a baking temperature, and which is small in the change in a resistance value with time under a high-temperature condition, and small in the variation of a resistance value owing to a thermal treatment for resistance adjustment.SOLUTION: A negative characteristic thermistor comprises: a ceramic elemental body arranged by use of a semiconductor ceramic composition for a negative characteristic thermistor which includes Mn, Ni and Fe; an external electrode disposed on the outer surface of the ceramic elemental body; and an internal electrode disposed in the ceramic elemental body and electrically connected with the external electrode. In the semiconductor ceramic composition for a negative characteristic thermistor, Mn is 80-70 mol%, Ni is 20-30 mol%, and Fe is 15-25 mol% to a total of 100 mol% of Mn and Ni. The internal electrode includes Pd.SELECTED DRAWING: Figure 1
【課題】抵抗値が焼成温度の影響を受けにくく、高温条件下での抵抗値の経時変化が小さく、かつ抵抗調整のための熱処理に起因する抵抗値のばらつきが小さいＮＴＣサーミスタを提供する。【解決手段】Ｍｎ、ＮｉおよびＦｅを含む負特性サーミスタ用半導体セラミック組成物からなるセラミック素体と、セラミック素体の外表面に配置される外部電極と、セラミック素体の内部に配置され、かつ外部電極と電気的に接続される内部電極とを含む負特性サーミスタであって、負特性サーミスタ用半導体セラミック組成物において、ＭｎおよびＮｉの合計を１００ｍｏｌ％としたとき、Ｍｎのモル比率は８０〜７０ｍｏｌ％、Ｎｉのモル比率は２０〜３０ｍｏｌ％、Ｆｅのモル比率は１５〜２５ｍｏｌ％であり、内部電極はＰｄからなる、負特性サーミスタ。【選択図】図１
SEMICONDUCTOR CERAMIC COMPOSITION FOR NEGATIVE CHARACTERISTIC THERMISTOR, AND NEGATIVE CHARACTERISTIC THERMISTOR
PROBLEM TO BE SOLVED: To provide a NTC thermistor which has a resistance value unsusceptible to a baking temperature, and which is small in the change in a resistance value with time under a high-temperature condition, and small in the variation of a resistance value owing to a thermal treatment for resistance adjustment.SOLUTION: A negative characteristic thermistor comprises: a ceramic elemental body arranged by use of a semiconductor ceramic composition for a negative characteristic thermistor which includes Mn, Ni and Fe; an external electrode disposed on the outer surface of the ceramic elemental body; and an internal electrode disposed in the ceramic elemental body and electrically connected with the external electrode. In the semiconductor ceramic composition for a negative characteristic thermistor, Mn is 80-70 mol%, Ni is 20-30 mol%, and Fe is 15-25 mol% to a total of 100 mol% of Mn and Ni. The internal electrode includes Pd.SELECTED DRAWING: Figure 1
【課題】抵抗値が焼成温度の影響を受けにくく、高温条件下での抵抗値の経時変化が小さく、かつ抵抗調整のための熱処理に起因する抵抗値のばらつきが小さいＮＴＣサーミスタを提供する。【解決手段】Ｍｎ、ＮｉおよびＦｅを含む負特性サーミスタ用半導体セラミック組成物からなるセラミック素体と、セラミック素体の外表面に配置される外部電極と、セラミック素体の内部に配置され、かつ外部電極と電気的に接続される内部電極とを含む負特性サーミスタであって、負特性サーミスタ用半導体セラミック組成物において、ＭｎおよびＮｉの合計を１００ｍｏｌ％としたとき、Ｍｎのモル比率は８０〜７０ｍｏｌ％、Ｎｉのモル比率は２０〜３０ｍｏｌ％、Ｆｅのモル比率は１５〜２５ｍｏｌ％であり、内部電極はＰｄからなる、負特性サーミスタ。【選択図】図１
SEMICONDUCTOR CERAMIC COMPOSITION FOR NEGATIVE CHARACTERISTIC THERMISTOR, AND NEGATIVE CHARACTERISTIC THERMISTOR
負特性サーミスタ用半導体セラミック組成物および負特性サーミスタ
KAWAHARA CHIKAHIRO (author)
2016-04-14
Patent
Electronic Resource
Japanese
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