Effect of heat treatment on thermal conductivity and dielectric properties of AlN ceramics

Xiulan He; Lei Shi; Qingdong Gong; Yingkui Guo; Feng Ye

doi:10.14062/j.issn.0454-5648.2015.09.02

Effect of heat treatment on thermal conductivity and dielectric properties of AlN ceramics

Xiulan He
, Lei Shi
, Qingdong Gong
, Yingkui Guo
, Feng Ye

Harbin University of Science and Technology
Harbin Institute of Technology

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

2 Scopus citations

Abstract

Aluminum nitride (AlN) ceramics prepared by a fast spark plasma sintering method were heat-treated by a vacuum pressureless sintering method. Effect of sintering additive on the phase composition, microstructure, thermal and dielectric properties of AlN ceramics during high-temperature heat treatment process was investigated. The results show that the heat treatment enhances the growth of AlN grains and the distribution of secondary phases. Compared to AlN ceramics with single rare earth oxide, the thermal conductivity and dielectric loss of AlN ceramics with earth oxide-CaF₂ multiple sintering additive are improved due to the effects of effective removing oxygen and forming evaporable secondary phases.

Original language	English
Pages (from-to)	1186-1191
Number of pages	6
Journal	Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Volume	43
Issue number	9
DOIs	https://doi.org/10.14062/j.issn.0454-5648.2015.09.02
State	Published - 1 Sep 2015
Externally published	Yes

Keywords

Aluminum nitride ceramics
Dielectric property
Heat treatment
Thermal conductivity

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10.14062/j.issn.0454-5648.2015.09.02

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title = "Effect of heat treatment on thermal conductivity and dielectric properties of AlN ceramics",

abstract = "Aluminum nitride (AlN) ceramics prepared by a fast spark plasma sintering method were heat-treated by a vacuum pressureless sintering method. Effect of sintering additive on the phase composition, microstructure, thermal and dielectric properties of AlN ceramics during high-temperature heat treatment process was investigated. The results show that the heat treatment enhances the growth of AlN grains and the distribution of secondary phases. Compared to AlN ceramics with single rare earth oxide, the thermal conductivity and dielectric loss of AlN ceramics with earth oxide-CaF2 multiple sintering additive are improved due to the effects of effective removing oxygen and forming evaporable secondary phases.",

keywords = "Aluminum nitride ceramics, Dielectric property, Heat treatment, Thermal conductivity",

author = "Xiulan He and Lei Shi and Qingdong Gong and Yingkui Guo and Feng Ye",

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doi = "10.14062/j.issn.0454-5648.2015.09.02",

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volume = "43",

pages = "1186--1191",

journal = "Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society",

issn = "0454-5648",

publisher = "Chinese Ceramic Society",

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}

TY - JOUR

T1 - Effect of heat treatment on thermal conductivity and dielectric properties of AlN ceramics

AU - He, Xiulan

AU - Shi, Lei

AU - Gong, Qingdong

AU - Guo, Yingkui

AU - Ye, Feng

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Aluminum nitride (AlN) ceramics prepared by a fast spark plasma sintering method were heat-treated by a vacuum pressureless sintering method. Effect of sintering additive on the phase composition, microstructure, thermal and dielectric properties of AlN ceramics during high-temperature heat treatment process was investigated. The results show that the heat treatment enhances the growth of AlN grains and the distribution of secondary phases. Compared to AlN ceramics with single rare earth oxide, the thermal conductivity and dielectric loss of AlN ceramics with earth oxide-CaF2 multiple sintering additive are improved due to the effects of effective removing oxygen and forming evaporable secondary phases.

AB - Aluminum nitride (AlN) ceramics prepared by a fast spark plasma sintering method were heat-treated by a vacuum pressureless sintering method. Effect of sintering additive on the phase composition, microstructure, thermal and dielectric properties of AlN ceramics during high-temperature heat treatment process was investigated. The results show that the heat treatment enhances the growth of AlN grains and the distribution of secondary phases. Compared to AlN ceramics with single rare earth oxide, the thermal conductivity and dielectric loss of AlN ceramics with earth oxide-CaF2 multiple sintering additive are improved due to the effects of effective removing oxygen and forming evaporable secondary phases.

KW - Aluminum nitride ceramics

KW - Dielectric property

KW - Heat treatment

KW - Thermal conductivity

UR - https://www.scopus.com/pages/publications/84943539244

U2 - 10.14062/j.issn.0454-5648.2015.09.02

DO - 10.14062/j.issn.0454-5648.2015.09.02

M3 - 文章

AN - SCOPUS:84943539244

SN - 0454-5648

VL - 43

SP - 1186

EP - 1191

JO - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society

JF - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society

IS - 9

ER -

Effect of heat treatment on thermal conductivity and dielectric properties of AlN ceramics

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Keywords

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