The preparation of fine-grained positive temperature coefficient resistance with superior electrical properties

Yong Chen; Shuping Gong; Bo Zhang; Wanqiang Cao; Dapeng Yu; Zhaoyang Liu; Wenfeng Wang

doi:10.1016/j.mee.2012.09.019

The preparation of fine-grained positive temperature coefficient resistance with superior electrical properties

Yong Chen
, Shuping Gong
, Bo Zhang
, Wanqiang Cao
, Dapeng Yu
, Zhaoyang Liu
, Wenfeng Wang

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The electrical characteristics of positive temperature coefficient resistance (PTCR effects) mainly come from the grain boundary. The useful way to enhance electrical characteristics of PTC ceramics is to decrease the grain size and add the number of grain boundary. In the paper, the grain size and PTCR effects of ceramics were investigated on the effects of the molar ratio of donor and acceptor, the sintering process and high-energy ball milling. The formulation of prepared ceramics were Ba_0.8Sr_0.2Ti_1.01-O₃ + 0.03 mol% Mn(NO₃)₂ + x mol Y₂O₃ + 2 wt% SiO₂. The grain size of these PTC ceramics was decreased to only 1-2 μm by adding Sr²⁺ and Y³⁺ to substitute the A-site barium ions, which were calcined at 1220 °C and sintered at 1300 °C after high-energy ball milling for powders. The prepared ceramics exhibited room temperature resistivity of 100 Ω cm, resistance rising rate more than 10⁴ unit through the Curie temperature, and relative density between 75% and 90%.

Original language	English
Pages (from-to)	106-110
Number of pages	5
Journal	Microelectronic Engineering
Volume	103
DOIs	https://doi.org/10.1016/j.mee.2012.09.019
State	Published - Mar 2013
Externally published	Yes

Keywords

BaTiO
Donor and acceptor
Fine-grained
PTC

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10.1016/j.mee.2012.09.019

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@article{b80be7c75b7d4db1bbc9b2f59197fdef,

title = "The preparation of fine-grained positive temperature coefficient resistance with superior electrical properties",

abstract = "The electrical characteristics of positive temperature coefficient resistance (PTCR effects) mainly come from the grain boundary. The useful way to enhance electrical characteristics of PTC ceramics is to decrease the grain size and add the number of grain boundary. In the paper, the grain size and PTCR effects of ceramics were investigated on the effects of the molar ratio of donor and acceptor, the sintering process and high-energy ball milling. The formulation of prepared ceramics were Ba0.8Sr0.2Ti1.01-O3 + 0.03 mol\% Mn(NO3)2 + x mol Y2O3 + 2 wt\% SiO2. The grain size of these PTC ceramics was decreased to only 1-2 μm by adding Sr2+ and Y3+ to substitute the A-site barium ions, which were calcined at 1220 °C and sintered at 1300 °C after high-energy ball milling for powders. The prepared ceramics exhibited room temperature resistivity of 100 Ω cm, resistance rising rate more than 104 unit through the Curie temperature, and relative density between 75\% and 90\%.",

keywords = "BaTiO, Donor and acceptor, Fine-grained, PTC",

author = "Yong Chen and Shuping Gong and Bo Zhang and Wanqiang Cao and Dapeng Yu and Zhaoyang Liu and Wenfeng Wang",

year = "2013",

month = mar,

doi = "10.1016/j.mee.2012.09.019",

language = "English",

volume = "103",

pages = "106--110",

journal = "Microelectronic Engineering",

issn = "0167-9317",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - The preparation of fine-grained positive temperature coefficient resistance with superior electrical properties

AU - Chen, Yong

AU - Gong, Shuping

AU - Zhang, Bo

AU - Cao, Wanqiang

AU - Yu, Dapeng

AU - Liu, Zhaoyang

AU - Wang, Wenfeng

PY - 2013/3

Y1 - 2013/3

N2 - The electrical characteristics of positive temperature coefficient resistance (PTCR effects) mainly come from the grain boundary. The useful way to enhance electrical characteristics of PTC ceramics is to decrease the grain size and add the number of grain boundary. In the paper, the grain size and PTCR effects of ceramics were investigated on the effects of the molar ratio of donor and acceptor, the sintering process and high-energy ball milling. The formulation of prepared ceramics were Ba0.8Sr0.2Ti1.01-O3 + 0.03 mol% Mn(NO3)2 + x mol Y2O3 + 2 wt% SiO2. The grain size of these PTC ceramics was decreased to only 1-2 μm by adding Sr2+ and Y3+ to substitute the A-site barium ions, which were calcined at 1220 °C and sintered at 1300 °C after high-energy ball milling for powders. The prepared ceramics exhibited room temperature resistivity of 100 Ω cm, resistance rising rate more than 104 unit through the Curie temperature, and relative density between 75% and 90%.

AB - The electrical characteristics of positive temperature coefficient resistance (PTCR effects) mainly come from the grain boundary. The useful way to enhance electrical characteristics of PTC ceramics is to decrease the grain size and add the number of grain boundary. In the paper, the grain size and PTCR effects of ceramics were investigated on the effects of the molar ratio of donor and acceptor, the sintering process and high-energy ball milling. The formulation of prepared ceramics were Ba0.8Sr0.2Ti1.01-O3 + 0.03 mol% Mn(NO3)2 + x mol Y2O3 + 2 wt% SiO2. The grain size of these PTC ceramics was decreased to only 1-2 μm by adding Sr2+ and Y3+ to substitute the A-site barium ions, which were calcined at 1220 °C and sintered at 1300 °C after high-energy ball milling for powders. The prepared ceramics exhibited room temperature resistivity of 100 Ω cm, resistance rising rate more than 104 unit through the Curie temperature, and relative density between 75% and 90%.

KW - BaTiO

KW - Donor and acceptor

KW - Fine-grained

KW - PTC

UR - https://www.scopus.com/pages/publications/84869883480

U2 - 10.1016/j.mee.2012.09.019

DO - 10.1016/j.mee.2012.09.019

M3 - Article

AN - SCOPUS:84869883480

SN - 0167-9317

VL - 103

SP - 106

EP - 110

JO - Microelectronic Engineering

JF - Microelectronic Engineering

ER -

The preparation of fine-grained positive temperature coefficient resistance with superior electrical properties

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Keywords

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