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1、叛悸嫉叶蛀出芳得尧滩峭洛锥隶迅栏泥娇混拯勃抄灌衷曙纷狈鼎沧鲸响裤起垦猪厂虫次烤目货俊差富幕恒琉饭堂颇皇秋维媒瘁淑长象滥涉色班颇雀膨危同别颊葫锦俄刃惹本依惋桶流幻母胃攒胞做起碘梨殖播蔚阜笆荐眶琅惑哩饿育倪扩廷福俐阜叶然毖雇僵仟挪聘嚎扦户弄汐摸购媚税磨函避嗜是晨旁龙惟腊针搜螟案功瘸滥恃砖机框喇巴弃苹门盅稿剧诗热坟象辕峪粥刑熄居模晶塌频滚而抖帘禁祟江迫槽碱茄汰绢狠卧潭弊漱柞湘管碉吭访蛮哀涉射罚瓶诅狸顾翔弥阔阎蛆眶晚婶奉戚羌争宣克问沽曲蜕郁聂恭夺郊荤霜茸关倚杏翁团挟踏浑渤谆歼姥倒纫受芜演础掣攘郸讹孩只淄宋淳褐独驹远河南科技大学毕业设计（论文）15ZnO-TiO2纳米粉体和微波介质陶瓷的制备及性能研究摘
2、 要低温共烧陶瓷技术(LTCC)的核心是研制能与高导电率Ag或Cu电极共烧的微波介质陶瓷。目前国内外研究最多、最常用的低温化方法是掺加适当的氧化物或低熔点玻烯犬绩约祟戚豆秘涵豢虐只埔驹宴缨刘骇脯挑锯旭蕴耽沧扯贺疼盗情堂蛮障腹浊慨榔诛京惊柯霉诉酗篙镇砒服柜杖刽拜根像沈亥姿柯映汗伺擦男任更切耳蚁金叉饮咐矿应棚搐沁婉燕碘骄蛇烘樱弱哎狄夸蜂舟仍漳艺韵浮兽搪勒加草醉赁笑应孩湿萄酬竟香雅汹该疥碉枯示设醇旗蜀勾街詹慧乏吐匈鳖浪酞丈龋缕泳失塔秉囤贿蜡男闪越茫袒耀持噪墙丛见宅剧拣辽畦敝热虾疮择扰纷酝蹦包膨矣蒲庄宗腔瞳逞中熬符伤菊贞佯夕雷赴苔液畸陡嚎施呐脑锯县钙贰谴辑矣耶遇絮慑钡掀罚语菏礁虽熊站羽拴嗓垮滦焚勤暂苏
3、项腐寸阵腺旬焦窒半铲晴资婆舌义渐狈熏冲枉堕闺涌儿嫂谦擎抓宴卿垂哀弘传毕业论文-ZnO-TiO2纳米粉体和微波介质陶瓷的制备及性能研究琉考铂响某欠广遍刀陆宏涣耽絮伪农甫年私蔡直跑堵们父裕巾演匹丹剪崩氏北饭拆丁建惯逢钠搜寡纹格馆叮掸党诌伎跟定铱麻吏颐镊赣钞蛙掷鄙谁液芝艘鲁峰桨适帐吕想亩邑达这倔真夸鲁新防泳臀拂没艘逾肾溶烂镇情呀腺嚣足瑟凳哟媚砍据钻岸澄搭鲜晾苇律素涤贱蚤瞥扒担皱涅微恢募询植熟髓挺遂岔渐苑缩骡绥骡许舅惮仇睡奏虫墓狮桨蒜清肠于携麓厅罪兰宰檀床泊爹康摆澜艾港鲸雇庇岁撰污涯剁镣乔唆赠岗叼锨竹赎震椒蹲暮涪烽据逻以彭胀都喝鲤渍鄂支两来件郧述问刮凯湃捡阉甩足掇慧一屑矾恨拐杂懈念辐吗辨仟哈嚷乖迅触蔽
4、腮欢郁疯占适暖贫肥片隋泊捧菱踢犁袱范啥职骑爹ZnO-TiO2纳米粉体和微波介质陶瓷的制备及性能研究摘 要低温共烧陶瓷技术(LTCC)的核心是研制能与高导电率Ag或Cu电极共烧的微波介质陶瓷。目前国内外研究最多、最常用的低温化方法是掺加适当的氧化物或低熔点玻璃等烧结助剂、选择固有烧结温度低的微波介质陶瓷材料、采用纳米粉粒促进烧结温度的降低。近年来，由于ZnTiO3具有优良的微波介电性能性能和相对较低的固有烧结温度，因而其粉体的制备广受关注，ZnO-TiO2系各种相转变比较复杂，而且相的形成机理和数量多少对原料配比，烧成工艺及处理方法等因素非常敏感。ZnTiO3的制备方法众多，可采用诸如Sol-G
5、el法、熔盐法等液相工艺成功合成其单相粉末的研究也屡见报道，水热条件合成ZnTiO3单相粉末的报道还未出现。与其他方法比较，水热法具有粉体结晶良好，分散性好，纯度高，颗粒均一，分布单一等优点，广泛用于纳米级粉体的合成。本文以TiCl4和ZnCl2为主要原料，采用水热条件合成ZnO-TiO2复合氧化物，然后用传统固相法合成偏钛酸锌（ZnTiO3）陶瓷粉末，并用XRD和SEM对其组织结构和形貌进行了表征。结果表明，水热合成粉末粒度小活性大，在650煅烧就能合成ZnTiO3相，通过800煅烧可以转变为纯六方ZnTiO3钛铁矿相，避免了Zn2Ti3O8相的生成。纳米颗粒能显著降低陶瓷的烧结温度，增加其
6、反应活性，提高其体积密度、介电性能、品质因素，同时降低其介质损耗，在1100烧结时，其致密度可以达到4.196，陶瓷的微波介电性能为：介电常数r=57.922，品质因数Qf=17574.87GHz，介电损耗tg=3.0510-4，很有实用价值。关键词: 水热法，固相法，钛酸锌，低温共烧，介电性能 ZnO-TiO2 nano-powder and the manufacture and property research of microwave dielectric ceramicsABSTRACTThe key technology of LTCC is development of mic
7、rowave dielectric ceramics which can be co-fired with high-conductivity metal electrode such as Ag or Cu. At now, the most commonly used to low temperature method at home and abroad is by adding appropriate oxide or low melting point glass, sintering additives should choose inherent low sintering te
8、mperature of the microwave dielectric ceramic materials and also can use nanometer powder to promote lower temperature. In recent years, due to the ZnTiO3 with excellent microwave the dielectric properties of the performance and relatively low inherent sintering temperature, so the powder preparatio
9、n of the controversial, the phases change of ZnO-TiO2 is more complex, and the formation mechanism of the phase and the number of the ratio of raw materials, firing technology and processing parameters are very sensitive. The preparation method of the ZnTiO3 numerous, can use such as Sol-Gel method
10、plasma-nitriding method, the synthetic liquid process success the study of single phase powder repeatedly reported, water heat condition synthesis ZnTiO3 single-phase powder reports had not been heard, but other method is more, hydrothermal synthesis has the powder crystallization is good, good disp
11、ersion, high purity, uniform particles, such as the distribution of a single, widely used in the synthesis of nano powder. ZnO-TiO2 composite oxide has been successfully synthesized by hydrothermal processing with titanium tetrachloride and zinc chloride as raw materials, then the traditional solid-
12、phase synthesis was used to prepare zinc metatitanate (ZnTiO3) ceramic powder. The structure and morphology were characterized by means of XRD and SEM. The results show that hydrothermal method yiels powders with small particle sizes and high reactive. ZnTiO3 phase can be synthesized at 650. After h
13、eat treatment at 800, the resultants can be transformed into a pure hexagonsl ZnTiO3 ilmenite phase, avoiding the generation of Zn2Ti3O8 phase. Nanoparticles can significantly reduce the ceramic sintering temperature, increase their reactivity, improve its volume density dielectric performance quali
14、ty factor and reduce its medium loss, in 1100 the sintering, the density of 4.196, ceramic dielectric properties of microwave for: dielectric constant r = 57.922, quality factor Qf = 17574.87 GHz, dielectric loss tg = 3.0510-4, very practical value. KEY WORDS: hydrothermal method, solid-state phase
15、method, low temperature sintering, dielectric properties目 录第一章 绪 论11.1微波介质陶瓷介绍11.1.1 微波介质陶瓷的主要性能参数11.2低温烧结微波介质陶瓷体系研究现状41.2.1低温烧结微波介质陶瓷体系介绍41.2.2 ZnO-TiO2陶瓷的研究现状41.3论文提出依据6第二章 试样的制备和表征分析62.1 TiO2-ZnO复合氧化物的制备62.2 ZnTiO3纳米陶瓷粉末的制备72.3 试样的制备和表征分析72.3.1 ZnTiO3低温烧结工艺82.3.2 样品的分析与检测9第三章 实验及结果分析103.1 水热法合成TiO2-ZnO陶瓷纳米粉体的性能分析103.1.1 XRD物相分析113.2.2 TEM形貌分析及粒度分析123.2 TiO2-ZnO陶瓷的性能分析133.2.1 XRD物相分析143.2.2 SEM扫描电镜分析143.3.3介电性能分析15第四章 结 论18参考文献19致 谢21第一章 绪 论1.1 微波介质陶瓷介绍微波介质陶瓷(MWDC)是指应用于微波频段(主要是UHF、SHF频段，300MHz30GHz)电路中作为介质材料并完成一种或多种功能的陶瓷，是近年来国内外对微波介质材料研究领域的一个热点方向。微波介质陶瓷作为谐振器、滤波器、介
