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High-resistance low-B-value thermistor ceramic body, preparation method and thermistor
The invention discloses a high-resistance low-B-value thermistor ceramic body, a preparation method and a thermistor, and the high-resistance low-B-value thermistor ceramic body comprises the following components in percentage by weight: 24-31% of Mn, 29-38% of Ni, 20-27% of Fe and 3-5% of Al, and is doped with lithium oxide (Li2O), lanthanum trioxide (La2O3) and yttrium oxide (Y2O3); the total doping amount is 4-27%. According to the high-resistance low-B-value thermistor ceramic body, a manganese-nickel-iron-aluminum quaternary system formula (Mn-Ni-Fe-Al) is adopted, aluminum oxide, lithium oxide (Li2O), lanthanum trioxide (La2O3) and yttrium oxide (Y2O3) are added on the basis of a ternary system (Mn-Ni-Fe) formula, and the characteristics that the stability of lithium and rare earth elements is good, the eutectic point is reduced, the sintering temperature is low, and the resistance value is high are utilized; the sintering temperature of the system is reduced by 125-75 DEG C (the sintering temperature is 1125-1175 DEG C) compared with that of a common formula (1250 DEG C), and sintering forming can be well achieved; and electric energy in a high-temperature heat preservation area can be saved.
本发明公开了一种高阻值低B值热敏电阻陶瓷体、制备方法及热敏电阻，按重量百分比计，高阻值低B值热敏电阻陶瓷体包括如下组分及比例：24～31％Mn、29～38％Ni、20～27％Fe，3～5％Al，并掺杂氧化锂(Li2O)、三氧化二镧(La2O3)和三氧化二钇(Y2O3)；掺杂共计4～27％。本发明的高阻值低B值热敏电阻陶瓷体，采用锰‑镍‑铁‑铝四元系体系配方(Mn‑Ni‑Fe‑Al)，在三元系(Mn‑Ni‑Fe)配方基础上添加氧化铝、氧化锂(Li2O)、三氧化二镧(La2O3)和三氧化二钇(Y2O3)，利用锂和稀土元素稳定性好，降低共熔点，烧结温度低，使得体系烧结温度比普通配方(1250℃)降低了125～75℃(烧结温度为1125℃～1175℃)，也能够很好地烧结成型；并可节省在高温保温区的电能。
High-resistance low-B-value thermistor ceramic body, preparation method and thermistor
The invention discloses a high-resistance low-B-value thermistor ceramic body, a preparation method and a thermistor, and the high-resistance low-B-value thermistor ceramic body comprises the following components in percentage by weight: 24-31% of Mn, 29-38% of Ni, 20-27% of Fe and 3-5% of Al, and is doped with lithium oxide (Li2O), lanthanum trioxide (La2O3) and yttrium oxide (Y2O3); the total doping amount is 4-27%. According to the high-resistance low-B-value thermistor ceramic body, a manganese-nickel-iron-aluminum quaternary system formula (Mn-Ni-Fe-Al) is adopted, aluminum oxide, lithium oxide (Li2O), lanthanum trioxide (La2O3) and yttrium oxide (Y2O3) are added on the basis of a ternary system (Mn-Ni-Fe) formula, and the characteristics that the stability of lithium and rare earth elements is good, the eutectic point is reduced, the sintering temperature is low, and the resistance value is high are utilized; the sintering temperature of the system is reduced by 125-75 DEG C (the sintering temperature is 1125-1175 DEG C) compared with that of a common formula (1250 DEG C), and sintering forming can be well achieved; and electric energy in a high-temperature heat preservation area can be saved.
本发明公开了一种高阻值低B值热敏电阻陶瓷体、制备方法及热敏电阻，按重量百分比计，高阻值低B值热敏电阻陶瓷体包括如下组分及比例：24～31％Mn、29～38％Ni、20～27％Fe，3～5％Al，并掺杂氧化锂(Li2O)、三氧化二镧(La2O3)和三氧化二钇(Y2O3)；掺杂共计4～27％。本发明的高阻值低B值热敏电阻陶瓷体，采用锰‑镍‑铁‑铝四元系体系配方(Mn‑Ni‑Fe‑Al)，在三元系(Mn‑Ni‑Fe)配方基础上添加氧化铝、氧化锂(Li2O)、三氧化二镧(La2O3)和三氧化二钇(Y2O3)，利用锂和稀土元素稳定性好，降低共熔点，烧结温度低，使得体系烧结温度比普通配方(1250℃)降低了125～75℃(烧结温度为1125℃～1175℃)，也能够很好地烧结成型；并可节省在高温保温区的电能。
High-resistance low-B-value thermistor ceramic body, preparation method and thermistor
高阻值低B值热敏电阻陶瓷体、制备方法及热敏电阻
MO LIN (author) / JIANG LULIAN (author) / JIANG CHAOLUN (author)
2022-12-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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