Optimization of the composition and sintering conditions of high-voltage ZnO varistor ceramics
- 作者: Gromov O.G.1, Savel’ev Y.A.1, Tikhomirova E.L.1, Belyaevskii A.T.1, Lokshin E.P.1
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隶属关系:
- Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
- 期: 卷 53, 编号 5 (2017)
- 页面: 536-539
- 栏目: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158226
- DOI: https://doi.org/10.1134/S0020168517050089
- ID: 158226
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详细
This paper presents a study aimed at optimizing the composition and sintering conditions of highvoltage ZnO varistor ceramics. We demonstrate that, with allowance for the cost of starting materials, the optimal composition of high-voltage ZnO varistor ceramics is as follows (wt %): ZnO, 90; Bi2O3, 2.76; Sb2O3, 1.92; Al2O3, 3.32; and Co2O3, 2. The optimal sintering conditions are isothermal holding at a temperature of 975°C for 2 h. The ceramics thus prepared have Vb = 4.5 kV/mm, α = 50, Il = 1.1 μA/cm2, density ρ = 5.67 g/cm3 (relative density of 96.1%).
作者简介
O. Gromov
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: tikhomirova@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
Yu. Savel’ev
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: tikhomirova@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
E. Tikhomirova
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
编辑信件的主要联系方式.
Email: tikhomirova@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
A. Belyaevskii
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: tikhomirova@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
E. Lokshin
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: tikhomirova@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
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