ZnO·2.56Al2O3透明陶瓷凝胶注模成型与烧结制备

doi:10.15541/jim20180588

摘要/Abstract

摘要：

锌铝尖晶石透明陶瓷是典型的结构功能一体化材料, 具有优异的光学、热学以及介电性能。本研究以ZnAl₂O₄和Al₂O₃为原料, 通过凝胶注模成型制备ZnAl₂O₄-Al₂O₃复相陶瓷初坯。实验探究了分散剂含量、pH以及固相量对ZnAl₂O₄-Al₂O₃混合料浆流变学特性的影响, 制得固相量为50vol%的低黏度稳定料浆。浇注成型后的坯体通过无压烧结和热等静压反应烧结制备透明陶瓷。最终获得的ZnO·2.56Al₂O₃透明陶瓷样品在厚度为1.8 mm下可见光波段透过率达到70%, 红外波段透过率达到80%以上, 维氏硬度为(11.34±0.17) GPa, 杨氏模量为285 GPa。

关键词: ZnO·2.56Al₂O₃, 透明陶瓷, 凝胶注模成型, 热等静压烧结

Abstract:

Zinc-aluminum spinel transparent ceramics are typical multi-functional materials with excellent optical, thermal and dielectric properties. ZnAl₂O₄-Al₂O₃ ceramics green body were fabricated through aqueous gelcasting forming technique starting from the raw materials of ZnAl₂O₄and Al₂O₃. The stable slurries of ZnAl₂O₄-Al₂O₃ with 50vol% solids loading were prepared. Furthermore, the effects of the dispersant, pH value and solid loading on the rheological properties were systematically investigated. Then, gel-casted green compacts were pressureless sintered and hot isostatic pressed to obtain transparent ceramics. Finally, transparent ZnO·2.56Al₂O₃ ceramics (1.8 mm in thickness) with in-line transmittance value of 70% in visible region and higher than 80% in infrared region were obtained. The samples exhibited Vickers hardness of (11.34±0.17) GPa, Young's modulus of 285 GPa.

Key words: ZnO·2.56Al₂O₃, transparent ceramics, gel-casting, hot isostatic pressing

中图分类号:

TQ174

张金诚, 王皓, 徐鹏宇, 涂兵田, 王为民, 傅正义. ZnO·2.56Al₂O₃透明陶瓷凝胶注模成型与烧结制备[J]. 无机材料学报, 2019, 34(10): 1072-1076.

ZHANG Jin-Cheng, WANG Hao, XU Peng-Yu, TU Bing-Tian, WANG Wei-Min, FU Zheng-Yi. Preparation of ZnO·2.56Al₂O₃ Transparent Ceramics by Aqueous Gelcasting and Hot Isostatic Pressing[J]. Journal of Inorganic Materials, 2019, 34(10): 1072-1076.

图/表 9

图1 ZnAl2O4和Al2O3粉体的Zeta电位

Fig. 1 Zeta-potential of ZnAl2O4 and Al2O3

图2 ZnAl2O4-Al2O3料浆的黏度与分散剂含量的关系曲线

Fig. 2 Relation of viscosity of slurry vs contents of PAA

图3 ZnAl2O4-Al2O3料浆的黏度与pH值的关系曲线

Fig. 3 Relation of viscosity of slurry vs pH value

图4 ZnAl2O4-Al2O3料浆的黏度与固含量的关系

Fig. 4 Relation of viscosity of slurry vs solid loading

图5 热等静压烧结前后样品的XRD图谱

Fig. 5 XRD patterns of the sample before and after Hot Isostatic Pressing (HIP) A: After pressureless sintering; B: After HIP

图6 无压预烧后的ZnAl2O4-Al2O3复相陶瓷表面刻蚀SEM照片

Fig. 6 Microstructure of acid-etched surface of ZnAl2O4-Al2O3 ceramic after pressureless sintering (Gray: Al2O3 phase; White: ZnAl2O4 phase)

图7 热等静压(HIP)烧结后ZnO·2.56Al2O3表面刻蚀SEM照片

Fig. 7 Microstructure of acid-etched surface of ZnO·2.56Al2O3 transparent ceramic after Hot Isostatic Pressing (HIP)

图8 ZnO·2.56Al2O3透明陶瓷样品的直线透过率图谱; 插图为样品表观照片

Fig. 8 In-line transmittance of ZnO·2.56Al2O3 transparent ceramic. The inset image shows a photograph of transparent ZnO·2.56Al2O3 ceramic

表1 ZnO·2.56Al2O3透明陶瓷块体的性能列表

Table 1 Propertice of ZnO·2.56Al2O3 transparent ceramic

Sample	Vickers hardness/GPa	Young’s modulus/GPa	Thermal conductivity/ (20 ℃, (W·m^-1·K^-1))	Dielectric constant/ (20 ℃, 1 MHz)	Dielectric loss/ (20 ℃, 1 MHz)
ZnO·2.56Al₂O₃	11.34±0.17	285	9.8	9.17	-1.39×10^-3
ZnAl₂O₄	10.5^[5]	282^[17]	-	-	-

参考文献 18

[1]	MATHUR S, VEITH M, HAAS M ,et al. Single-source Sol-Gel synthesis of nanocrystalline ZnAl₂O₄: structural and optical properties.. Journal of the American Ceramic Society, 2004,84(9):1921-1928.
[2]	KUMAR B R, RAO T S . AC impedance spectroscopy studies on solid-state sintered zinc aluminum oxide (ZnAl₂O₄) ceramics. American Institute of Physics, 2012,1461:303-306.
[3]	SAMPATH S K, CORDARO J F . Optical properties of zinc aluminate, zinc gallate, and zinc aluminogallate spinels. Journal of the American Ceramic Society, 2010,81(3):649-654.
[4]	LAAG N J V D, SNEL M D, MAGUSIN P C M M ,et al. Structural, elastic, thermophysical and dielectric properties of zinc aluminate (ZnAl₂O₄).Journal of the European Ceramic Society, 2004,24(8):2417-2424.
[5]	GOLDSTEIN A, YESHURUN Y, VULFSON M ,et al. Fabrication of transparent polycrystalline ZnAl₂O₄-a new optical bulk ceramic.Journal of the American Ceramic Society, 2012,95(3):879-882.
[6]	FU P, WANG Z, LIN Z ,et al. The microwave dielectric properties of transparent ZnAl₂O₄ ceramics fabricated by spark plasma sintering.Journal of Materials Science: Materials in Electronics, 2017,28(13):9589-9595.
[7]	KRELL A, WAETZIG K, KLIMKE J . Influence of the structure of MgO· nAl₂O₃ spinel lattices on transparent ceramics processing and properties.Journal of the European Ceramic Society, 2012,32(11):2887-2898.
[8]	ZHANG H, WANG H, GU H ,et al. Preparation of transparent MgO·1.8Al₂O₃ spinel ceramics by aqueous gelcasting, presintering and hot isostatic pressing.Journal of the European Ceramic Society, 2018,38(11):4057-4063.
[9]	YOUNG A C, OMATETE O O, JANNEY M A ,et al. Gelcasting of alumina.Journal of the American Ceramic Society, 2010,74(3):612-618.
[10]	KRELL A, KLIMKE J . Effects of the homogeneity of particle coordination on solid-state sintering of transparent alumina. Journal of the American Ceramic Society, 2006,89(6):1985-1992.
[11]	YI S, QIN X, ZHOU G , et al. Gelcasting and reactive sintering of sheet-like YAG transparent ceramics.Journal of Alloys & Compounds, 2015,652:250-253.
[12]	YANG J, YU J, HUANG Y . Recent developments in gelcasting of ceramics. Journal of the European Ceramic Society, 2011,31(14):2569-2591. DOI
[13]	WANG J, ZHANG F, CHEN F ,et al. Fabrication of aluminum oxynitride(γ-AlON) transparent ceramics with modified gelcasting.Journal of the American Ceramic Society, 2014,97(5):1353-1355.
[14]	陈大明 . 先进陶瓷材料的注凝技术与应用. 国防工业出版社, 2011.
[15]	GOLDSTEIN A, KRELL A, KLEEBE A . Transparent ceramics at 50: progress made and further prospects. Journal of the American Ceramic Society, 2016,99(10):3173-3197.
[16]	FUKATSU N, KURITA N, SHIGA H ,et al. Incorporation of hydrogen into magnesium aluminate spinel.Solid State Ionics, 2002,152(152):809-817.
[17]	KIM B, HIRAGA K, JEONG A ,et al. Transparent ZnAl₂O₄ ceramics fabricated by spark plasma sintering.Journal of The Ceramic Society of Japan, 2014,122(1429):784-787.
[18]	YUAN Z, WANG H, TU B T ,et al. Preparation of MgO·1.5Al₂O₃ transparent ceramic by pressureless sintering and hot isostatic pressing.Journal of Inorganic Materials, 2015,30(8):843-847.

ZnO·2.56Al₂O₃透明陶瓷凝胶注模成型与烧结制备

Preparation of ZnO·2.56Al₂O₃ Transparent Ceramics by Aqueous Gelcasting and Hot Isostatic Pressing

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 9

参考文献 18

相关文章 15

编辑推荐

Metrics

本文评价

[1]	靳喜海, 董满江, 阚艳梅, 梁波, 董绍明. 透明AlON陶瓷凝胶浇注成型及其无压烧结制备[J]. 无机材料学报, 2023, 38(2): 193-198.
[2]	李文俊, 王皓, 涂兵田, 谌强国, 郑凯平, 王为民, 傅正义. 宽光谱透过Mg_0.9Al_2.08O_3.97N_0.03透明陶瓷的制备与性能研究[J]. 无机材料学报, 2022, 37(9): 969-975.
[3]	母利成, 杨金萍, 王俊平, 赵瑾, 刘梦玮, 汪德文, 章健. 环氧树脂改性自发凝固成型制备YAG透明陶瓷[J]. 无机材料学报, 2022, 37(9): 941-946.
[4]	刘强, 王倩, 陈鹏辉, 李晓英, 章立轩, 谢腾飞, 李江. 两步烧结法制备红色Ce:8YSZ透明陶瓷及其性能研究[J]. 无机材料学报, 2022, 37(8): 911-917.
[5]	肖舒琳, 戴中华, 李定妍, 张凡博, 杨利红, 任晓兵. 氧化镧掺杂铌酸钾钠陶瓷的电、光性能研究[J]. 无机材料学报, 2022, 37(5): 520-526.
[6]	荆延秋, 刘强, 苏莎, 李晓英, 刘子玉, 王静雅, 李江. 1.5 μm被动调Q可饱和吸收体用Co:MgAl ₂O₄透明陶瓷的制备[J]. 无机材料学报, 2021, 36(8): 877-882.
[7]	曾建军, 张魁宝, 陈代梦, 郭海燕, 邓婷, 刘奎. 真空烧结制备(La_0.2Nd_0.2Sm_0.2Gd_0.2Er_0.2)₂Zr₂O₇高熵透明陶瓷[J]. 无机材料学报, 2021, 36(4): 418-424.
[8]	刘子玉, TOCI Guido, PIRRI Angela, PATRIZI Barbara, 冯亚刚, 陈肖朴, 胡殿君, 田丰, 吴乐翔, VANNINIMatteo, 李江. 固体激光用Nd:Lu₂O₃透明陶瓷的制备和光学性能研究[J]. 无机材料学报, 2021, 36(2): 210-216.
[9]	黄新友, 刘玉敏, 刘洋, 李晓英, 冯亚刚, 陈肖朴, 陈鹏辉, 刘欣, 谢腾飞, 李江. 醇水共沉淀法制备Yb:YAG透明陶瓷及其性能研究[J]. 无机材料学报, 2021, 36(2): 217-224.
[10]	朱丹阳, 钱康, 陈肖朴, 胡泽望, 刘欣, 李晓英, 潘裕柏, MIHÓKOVÁ Eva, NIKL Martin, 李江. 热等静压烧结制备细晶粒Ce,Y:SrHfO₃闪烁陶瓷[J]. 无机材料学报, 2021, 36(10): 1118-1124.
[11]	冯明星, 王斌, 徐鹏宇, 涂兵田, 王皓. 基于键价模型的MgAl₂O₄透明陶瓷热机械性能预测[J]. 无机材料学报, 2021, 36(10): 1067-1073.
[12]	郭胜强, 王皓, 涂兵田, 王斌, 徐鹏宇, 王为民, 傅正义. 细晶MgO·1.44Al₂O₃透明陶瓷的制备及其性能研究[J]. 无机材料学报, 2019, 34(10): 1067-1071.
[13]	张舟, 王皓, 涂兵田, 徐鹏宇, 王为民, 傅正义. Mg_0.27Al_2.58O_3.73N_0.27透明陶瓷机械性能评价[J]. 无机材料学报, 2018, 33(9): 1006-1010.
[14]	李江, 戴佳卫, 潘裕柏. 磁光透明陶瓷的研究进展[J]. 无机材料学报, 2018, 33(1): 1-8.
[15]	周鼎, 施鹰, 范灵聪, 林德宝, 孙泽清, 徐家跃. Ce, Pr离子双掺LuAG透明陶瓷制备及光学性能[J]. 无机材料学报, 2016, 31(10): 1099-1102.