|本期目录/Table of Contents|

[1]李沁键,龚加志,肖金坤,等.烧结温度对多孔铝酸锌陶瓷性能的影响[J].武汉工程大学学报,2022,44(01):60-64.[doi:10.19843/j.cnki.CN42-1779/TQ.202010026]
　LI Qinjian,GONG Jiazhi,XIAO Jinkun,et al.Effect of Sintering Temperature on Properties of Porous Zinc Aluminate Ceramics[J].Journal of Wuhan Institute of Technology,2022,44(01):60-64.[doi:10.19843/j.cnki.CN42-1779/TQ.202010026]
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烧结温度对多孔铝酸锌陶瓷性能的影响(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
44
期数:
2022年01期
页码:
60-64
栏目:
材料科学与工程
出版日期:
2022-02-28

文章信息/Info

Title:
Effect of Sintering Temperature on Properties of Porous Zinc Aluminate Ceramics
文章编号:
1674 - 2869（2022）01 - 0060 - 05
作者:
李沁键; 龚加志; 肖金坤; 戴　萌; 付　萍*
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
LI Qinjian; GONG Jiazhi; XIAO Jinkun; DAI Meng; FU Ping*
School of Materials Science and Engineering，Wuhan Institute of Technology， Wuhan 430205， China
关键词:
铝酸锌; 多孔陶瓷; 介电性能; 热导率; 抗压强度
Keywords:
zinc aluminate;  porous ceramics;  dielectric properties;  thermal conductivity;  compressive strength
分类号:
TQ174
DOI:
10.19843/j.cnki.CN42-1779/TQ.202010026
文献标志码:
A
摘要:
为了发展低热导率、高力学强度的铝酸锌（ZnAl2O4）陶瓷透波材料，采用造孔剂法和部分烧结法相结合制备了多孔ZnAl2O4陶瓷，研究了烧结温度对多孔ZnAl2O4陶瓷的热学性能、力学性能和微波介电性能的影响。结果显示，烧结温度升高会引起陶瓷的孔隙率轻微下降，平均孔径尺寸略有减小；升高烧结温度也会造成热导率和介电常数稍有增大，而对介电损耗影响较小；但是，升高烧结温度，多孔陶瓷的抗压强度明显增大。优化工艺后，当烧结温度在1 600 ℃时，多孔ZnAl2O4陶瓷的孔隙率为59.1%、导热率为0.340 W/（m·K），抗压强度达到最大值（18.15 MPa），介电常数和介电损耗维持在比较低的数值范围内。因此，选择合适的烧结工艺，可以制备出低热导率、高力学强度、低介电常数和介电损耗的多孔ZnAl2O4陶瓷，在透波材料领域具有潜在的应用前景。
Abstract:
To develop zinc aluminate（ZnAl2O4） wave-transmitting ceramics with low thermal conductivity and high mechanical strength，the porous ZnAl2O4 ceramics were prepared by the combination of pore-forming agent method and partial sintering method. The effects of sintering temperature on the thermal properties，mechanical properties and microwave dielectric properties of porous ZnAl2O4 ceramics were studied. The results show that the porosity and average pore size of ceramics decrease slightly with the increase of sintering temperature. The thermal conductivity and dielectric constant increase slightly with increasing sintering temperature，while the dielectric loss is not affected. However，with the increase of sintering temperature，the compressive strength of porous ceramics increases significantly. When the sintering temperature is 1 600 ℃，the porosity of porous ZnAl2O4 ceramics is 59.1%，the thermal conductivity is 0.340 W/（m·K），the compressive strength reaches the maximum value of 18.15 MPa，and the dielectric constant and the dielectric loss remain in a relatively low range. Therefore，the porous ZnAl2O4 ceramics with low thermal conductivity，high mechanical strength，low dielectric constant and dielectric loss can be prepared by selecting appropriate sintering process，which has potential application prospect in the field of wave-transmitting materials.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2020-10-28基金项目：2020年湖北省大学生创新创业训练计划项目（S202010490034）作者简介：李沁键，硕士研究生。E-mail：[email protected]*通讯作者：付　萍，博士，副教授。E-mail：[email protected]引文格式：李沁键，龚加志，肖金坤，等. 烧结温度对多孔铝酸锌陶瓷性能的影响［J］. 武汉工程大学学报，2022，44（1）：60-64.
更新日期/Last Update: 2022-03-01