首页期刊信息编委及顾问期刊发行联系方式使用帮助留言板ENGLISH
位置:首页 >> 正文
Al2O3 基陶瓷表面斑点及其析出相的表征
作者:刘虹志 彭家根     
单位:中国工程物理研究院电子工程研究所 四川 绵阳 621999 
关键词:氧化铝陶瓷 暗斑 掠入射 X 射线衍射 飞行时间–二次离子质谱仪 铝硅酸盐 
分类号:TB332
出版年,卷(期):页码:2017,45(12):1782-1787
DOI:10.14062/j.issn.0454-5648
摘要:

95%Al2O3 陶瓷高温烧结后表面斑点的表征与控制对于绝缘陶瓷沿面闪络耐压性能的提高至关重要。为分析和鉴定 95%Al2O3 陶瓷表面暗斑区未知物相和化学成分,采用掠入射 X 射线衍射技术、飞行时间–二次离子质谱仪并结合扫描电子显微镜/能谱仪技术对 95%Al2O3 陶瓷表面暗斑进行了研究。结果表明:与正常区相比,暗斑区除 α-Al2O3 外,还形成了(Na,K)AlSi3O8 和 Ca2Al2SiO7 铝硅酸盐相,暗斑区 Si、Ca 含量降低而 K、Na、Fe 富集。元素含量的变化促进了铝硅酸盐相的析出,进而导致 95%Al2O3陶瓷表面暗斑的产生

The characterization of surface freckles of 95%Al2O3 ceramics after high-temperature sintering is crucial for the improvement of surface flashover performance of alumina-based insulating ceramics. In this paper, the precipitated phases and chemical composition of the freckle area on the surface of 95%Al2O3 ceramic were analyzed by X-ray diffraction, time-of-flight secondary ion mass spectrometry, scanning electron microscopy, and energy dispersive spectroscopy, respectively. The results show that (Na, K)AlSi3O8 and Ca2Al2SiO7 aluminosilicates appear in the freckle area of 95%Al2O3 ceramic besides α-Al2O3. The contents of Si and Ca in the freckle area decrease, while the contents of K, Na and Fe increase, compared to the contents of those elements on the normal surface of 95%Al2O3 ceramic. The variety of the element contents leads to the precipitation of the aluminosilicates and the formation of the freckle area on the surface of 95%Al2O3 ceramic.

基金项目:
国家自然科学基金(51604251);中国工程物理研究院电子工程研究所创新发展基金(S20151113)
作者简介:
刘虹志(1983—),男,博士,副研究员
参考文献:

[1] CAI L B, WANG J G, ZHANG D H, et al. Self-consistent simulation of the initiation of the flashover discharge on vacuum insulator surface[J]. Phys Plasmas, 2012, 19(7): 073516.

[2] LI S T, ZHANG T, HUANG Q F, et al. Improvement of surface flashover performance of Al2O3 ceramics in vacuum by adopting A–B–A insulation system[J]. Plasma Sci Technol, 2011, 13(1): 235–241.
[3] TOUZIN M, GOEURIOT D, GUERRET-PIÉCOURT C, et al. Alumina based ceramics for high-voltage insulation[J]. J Eur Ceram Soc, 2010, 30(4): 805–817.
[4] 董烨, 董志伟, 周前红, 等. 释气对介质沿面闪络击穿影响的粒子 模拟[J]. 物理学报, 2014, 63(2): 027901. DONG Y, DONG Z W, ZHOU Q H, et al. Acta Phys Sin(in Chinese), 2014, 63(2): 027901.
[5] HARRIS J R. Measurements of an expanding surface flashover plasma[J]. J Appl Phys, 2014, 115(19): 193302.
[6] 郑家贵, 蒋立新, 蔡亚平, 等. Cr2O3涂层对Al2O3绝缘瓷二次电子发射特性的影响[J]. 无机材料学报, 2001, 16(3): 497–502.ZHENG J G, JIANG L X, CAI Y P, et al. J Inorg Mater(in Chinese),2001, 16(3): 497–502. 
[7] KUZNETSOV V L, SKOMOROKHOV D S, BESSONOVA V A, et al. An experimental setup for investigating prebreakdown phenomena on a vacuum surface of a ceramic insulator[J]. Instrum Exp Tech, 2012,55(6): 664–668.
[8] AMOUYAL Y, SEIDMAN D N. An atom-probe tomographic study of freckle formation in a nickel-based superalloy[J]. Acta Mater, 2011,59(17): 6729–6742.
[9] YUAN L, LEE P D. A new mechanism for freckle initiation based on microstructural level simulation[J]. Acta Mater, 2012, 60(12): 4917–4926.
[10] 沈琴, 王晓姣, 赵安宇, 等. Mn 对钢中富 Cu 相和 NiAl 相复合析出过程的影响[J]. 金属学报, 2016, 52(5): 513–518.SHEN Q, WANG X J, ZHAO A Y, et al. Acta Met Sin(in Chinese),2016, 52(5): 513–518.
[11] 吴隽, 李家治, 郭景坤. 景德镇青花瓷彩上斑点显微结构的研究[J].无机材料学报, 1999, 14(1): 143–149.WU J, LI J Z, GUO J K. J Inorg Mater(in Chinese), 1999, 14(1):143–149.
[12] FLOYD J R. Effect of secondary crystalline phases on dielectric losses in high-alumina bodies[J]. J Am Ceram Soc, 1964, 41(11): 539–543.
[13] TOMASZEWSKI H, KULIG L, TORU? J, et al. SEM, TEM and EPMA study of intergranular phases in alumina ceramics[J]. Ceram Int, 1982, 8(3): 115–117.
[14] POWELL-DO?AN C A, HEUER A H. Microstructure of 96% alumina ceramics: Ⅰ, characterization of the as-sintered materials[J]. J Am Ceram Soc, 1990, 73(12): 3670–3676.
[15] POWELL-DO?AN C A, HEUER A H. Devitrification of the grain boundary glassy phase in a high-alumina ceramic substrate[J]. J Am Ceram Soc, 1994, 77(10): 2593–2598.
[16] POWELL-DO?AN C A, HEUER A H. Microstructure of 96% alumina ceramics: Ⅲ, crystallization of high-calcia boundary glsses[J]. J Am Ceram Soc, 1990, 73(12): 3684–3691.
[17] 刘文庆, 刘庆冬, 顾剑锋. 原子探针层析技术(APT)最新进展及应用[J]. 金属学报, 2013, 49(9): 1025–1031. LIU W Q, LIU Q D, GU J F. Acta Met Sin(in Chinese), 2013, 49(9): 1025–1031.
[18] RENAUD G, LAZZARI R, LEROY F. Probing surface and interface morphology with grazing-incidence small-angle X-ray-scattering[J]. Surf Sci Rep, 2009, 64(8): 255–380.
[19] 张金帅, 黄秋实, 蒋励, 等. 低温退火的 X 射线 W/Si 多层膜应力和 结构性能[J]. 物理学报, 2016, 65(8): 086101. ZHANG J S, HUANG Q S, JIANG L, et al. Acta Phys Sin(in Chinese),2016, 65(8): 086101.
[20] ITO Y, OMOTE K. Determination of the pore size distribution and porosity of porous low-dielectric-constant films by grazing incidence X-ray scattering. Meas Sci Technol, 2011, 22(2): 024008.
[21] ERIKSSON G, PELTON A D. Critical evaluation and optimization of the thermodynamic properties and phase diagrams of the CaO–Al2O3, Al2O3–SiO2, and CaO–Al2O3–SiO2 systems[J]. Met Trans B, 1993, 24B(5): 807–816.
[22] 张培新, 林荣毅, 闫加强. SiO2–Al2O3–CaO–Fe2O3 系微晶玻璃的晶化过程[J]. 中国有色金属学报, 2000, 10(5): 752–756.ZHANG P X, LIN R Y, YAN J Q. Chin J Nonf Met, 2000, 10(5):752–756.
[23] 孙洪巍, 陈显求, 高力明, 等. 组成对 R2O–CaO–ZnO–Al2O3–iO2 系统分相的影响[J]. 无机材料学报, 2001, 16(3): 398–404.SUN H W, CHEN X Q, GAO L M, et al. J Inorg Mater(in Chinese),2001, 16(3): 398–404.
[24] 徐博, 曹建尉, 梁开明. Fe2O3对CaO–Al2O3–SiO2系泡沫微晶玻璃析晶与发泡的影响[J]. 稀有金属材料与工程, 2011, 40(S1): 15–17.XU B, CAO J W, LIANG K M. Rare Metal Mat Eng(in Chinese), 2011,40(S1): 15–17.
[25] 田清波, 蔡元兴, 岳雪涛, 等. Fe2O3, ZrO2及F对CaO–MgO–Al2O3–SiO2系微晶玻璃析晶行为的影响[J]. 硅酸盐学报, 2008, 36(1): 119–121.TIAN Q B, CAI Y X, YUE X T, et al. J Chin Ceram Soc, 2008, 36(1):119–121.
[26] REN X Z, ZHANG W, ZHANG Y, et al. Effects of Fe2O3 content on microstructure and mechanical properties of CaO–Al2O3–SiO2 system[J]. Trans Nonferrous Met Soc China, 2015, 25(1): 137–145.
[27] 冯小平, 何峰, 李立华. CaO–Al2O3–SiO2 系统微晶玻璃晶化行为的研究[J]. 武汉理工大学学报, 2001, 23(1): 22–25.FENG X P, HE F, LI L H. J Wuhan Univ Technol(in Chinese), 2001,23(1): 22–25. 
服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com