Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-reduction X7R type superfine ceramic material and preparation method thereof
The invention discloses an anti-reduction X7R type superfine ceramic material and a preparation method thereof, belongs to the technical field of electronic materials, and particularly relates to a ceramic material technology. According to the anti-reduction X7R type superfine ceramic material disclosed by the invention, a dielectric material is composed of BaTiO3 of which the particle size is 100-200nm as a main material and a secondary additive; the secondary additive comprises ZrO2, BaCO3, WO3, Mn3O4 and oxides of one or more of rare earth elements Y, Dy, Ho and Er; the mass ratio of the materials is [100-(a + b + c + d + e)] BaTiO3 + aBaCO3 + bZrO2 + cWO3 + dMn3O4 + eRe2O3, Re2O3 represents rare earth element oxides, a, b, c, d and e are coefficients, and by weight percentage, 0.4% < = a < = 4%, 0.1% < = b < = 0.4%, 0.02% < = c < = 0.08%, 0.2% < = d < = 0.8%, and 0.4% < = e < = 1.6%. And the mass of the secondary additive accounts for 1.32-5.68% of the total mass of the whole anti-reduction X7R type superfine ceramic material. The anti-reduction X7R type superfine ceramic material is finally prepared by sintering in a 1-2% H2-N2 reducing atmosphere and performing re-oxidation treatment, has a high dielectric constant (2000-3000), relatively high insulation resistivity (rho is greater than or equal to 1.0 * 10 < 12 > omega.cm), good temperature stability, good repeatability and low price, and can be used for preparing Ni electrode MLCC with high performance and low cost.
一种抗还原X7R型超细陶瓷材料及其制备方法，属于电子材料技术领域，特别涉及陶瓷材料技术。本发明的抗还原X7R型超细陶瓷材料以所述介质材料由主料粒径为100～200nm的BaTiO3和二次添加剂组成；所述二次添加剂包括ZrO2、BaCO3、WO3、Mn3O4以及稀土元素Y、Dy、Ho、Er中一种或一种以上的氧化物；所述各材料质量配比为：[100‑(a+b+c+d+e)]BaTiO3+aBaCO3+bZrO2+cWO3+dMn3O4+eRe2O3，Re2O3代表稀土元素氧化物，其中，a、b、c、d、e是系数，以重量百分比计算，0.4％≤a≤4％、0.1％≤b≤0.4％、0.02％≤c≤0.08％、0.2％≤d≤0.8％、0.4％≤e≤1.6％。二次添加剂质量占整个抗还原X7R型超细陶瓷材料总质量的1.32～5.68％。本发明的抗还原X7R型超细陶瓷材料是在1～2％H2‑N2还原气氛中进行烧结，并且进行再氧化处理最后制得的，其具有高介电常数(2000～3000)，较高的绝缘电阻率(ρ≥1.0*1012Ω·cm)，良好的温度稳定性，重复性好，价格低廉，可用于制备高性能、低成本的Ni电极MLCC。
Anti-reduction X7R type superfine ceramic material and preparation method thereof
The invention discloses an anti-reduction X7R type superfine ceramic material and a preparation method thereof, belongs to the technical field of electronic materials, and particularly relates to a ceramic material technology. According to the anti-reduction X7R type superfine ceramic material disclosed by the invention, a dielectric material is composed of BaTiO3 of which the particle size is 100-200nm as a main material and a secondary additive; the secondary additive comprises ZrO2, BaCO3, WO3, Mn3O4 and oxides of one or more of rare earth elements Y, Dy, Ho and Er; the mass ratio of the materials is [100-(a + b + c + d + e)] BaTiO3 + aBaCO3 + bZrO2 + cWO3 + dMn3O4 + eRe2O3, Re2O3 represents rare earth element oxides, a, b, c, d and e are coefficients, and by weight percentage, 0.4% < = a < = 4%, 0.1% < = b < = 0.4%, 0.02% < = c < = 0.08%, 0.2% < = d < = 0.8%, and 0.4% < = e < = 1.6%. And the mass of the secondary additive accounts for 1.32-5.68% of the total mass of the whole anti-reduction X7R type superfine ceramic material. The anti-reduction X7R type superfine ceramic material is finally prepared by sintering in a 1-2% H2-N2 reducing atmosphere and performing re-oxidation treatment, has a high dielectric constant (2000-3000), relatively high insulation resistivity (rho is greater than or equal to 1.0 * 10 < 12 > omega.cm), good temperature stability, good repeatability and low price, and can be used for preparing Ni electrode MLCC with high performance and low cost.
一种抗还原X7R型超细陶瓷材料及其制备方法，属于电子材料技术领域，特别涉及陶瓷材料技术。本发明的抗还原X7R型超细陶瓷材料以所述介质材料由主料粒径为100～200nm的BaTiO3和二次添加剂组成；所述二次添加剂包括ZrO2、BaCO3、WO3、Mn3O4以及稀土元素Y、Dy、Ho、Er中一种或一种以上的氧化物；所述各材料质量配比为：[100‑(a+b+c+d+e)]BaTiO3+aBaCO3+bZrO2+cWO3+dMn3O4+eRe2O3，Re2O3代表稀土元素氧化物，其中，a、b、c、d、e是系数，以重量百分比计算，0.4％≤a≤4％、0.1％≤b≤0.4％、0.02％≤c≤0.08％、0.2％≤d≤0.8％、0.4％≤e≤1.6％。二次添加剂质量占整个抗还原X7R型超细陶瓷材料总质量的1.32～5.68％。本发明的抗还原X7R型超细陶瓷材料是在1～2％H2‑N2还原气氛中进行烧结，并且进行再氧化处理最后制得的，其具有高介电常数(2000～3000)，较高的绝缘电阻率(ρ≥1.0*1012Ω·cm)，良好的温度稳定性，重复性好，价格低廉，可用于制备高性能、低成本的Ni电极MLCC。
Anti-reduction X7R type superfine ceramic material and preparation method thereof
一种抗还原X7R型超细陶瓷材料及其制备方法
TANG BIN (Autor:in) / XIAO CHANYIN (Autor:in) / LIU SHUCHENG (Autor:in) / SI FENG (Autor:in) / ZHONG CHAOWEI (Autor:in) / ZHANG SHUREN (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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