利用发泡-冷冻-凝胶法制备三维互联等级大孔SiC

来源 :第十八届全国高技术陶瓷学术年会 | 被引量 : 0次 | 上传用户：xingfuli2009

【摘要】

：

采用发泡-冷冻-凝胶法制备出具有三维互联大孔径的多孔SiC陶瓷材料(HMS),利用XRD、SEM和CT-Scan研究了HMS的物相、显微组织、孔径分布和气孔率,并研究了PVA与SiC的质量比和表面活性剂(AES)含量对材料的影响.结果表明:HMS由单一的SiC相组成;材料具有三维互联大孔结构,孔径由三个级别的气孔组成;当PVA与SiC的质量比为1和2时制得的HMS孔径分布较均匀;AES含量为1.6

【作者】

：

赵菁茹红强王伟岳新艳

【机构】

：

东北大学材料各向异性与织构教育部重点实验室,辽宁沈阳110819

【出处】

：

第十八届全国高技术陶瓷学术年会

【发表日期】

：

2014年4期

【关键词】

：

多孔碳化硅陶瓷发泡-冷冻-凝胶法物相组成孔隙率抗压强度

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

HOLLOW HIERARCHICAL HYDROXYAPATITE/AU/POLYELECTROLYTE HYBRID MICROPARTICLES WITH SMART DRUG DELIVERY

Multiple stimuli-responsive hollow micro-and nano-capsules have recently attracted increasing attention,due to their potential applications as novel functional drug carries[1].In this work,hollow HAP/

会议

hydroxyapatitemulti-responsive drug deliverynear-infrared

THE PEPARATION AND APPLICATION OF THE FUNCTIONALIZED AQUEOUS DISPERSION OF POLYPROPYLENE

Firstly,the reasons and the ways of the production of the self-made functionalized aqueous dispersion of polypropylene are introduced briefly.Then the properties of the aqueous dispersion are tested.A

会议

PPglass fiber (GF)functionalized aqueous dispersion ofpolypropylene

THE EFFECTS OF THE AQUEOUS DISPERSION OF PP ON THE CRYSTALLIZATION BEHAVIOR ON THE INTERFACE OF GF A

Firstly,the process of manufacturing the self-made aqueous dispersion of PP and the conditions that have to be controlled are introduced briefly.After that,the self-made aqueous dispersion of PP is us

会议

polypropylene (PP)glass fiber (GF)aqueous dispersion of PP

Synthesis and Photophysical Properties of Novel Triphenylamide-Based Hyperbranched Conjugated Polyme

The hyperbranched conjugated polymers have attracted much attention in recent decades due to their excellent thermally stability,good solubility,extraordinary photophysical properties,and so on.On acc

会议

hyperbranched structureconjugated polymerphotophysical property

ENGINEERING 2D POROUS ORGANIC NANOARCHITECTURES TAKING ADVANTAGE OF STAR-SHAPED MOLECULE SELF-ASSEMB

Engineering complex two-dimensional(2D)porous organic nanoarchitectures is the focus of recent research interest.In order to create porous nanoarchictures,strong molecule-molecule bindings are require

会议

self-assemblymoleculescanning tunneling microscopynanoarchitecture

SYNTHESIS OF TELECHELIC POLYSTYRENE VIA A COMBINATION OF RAFT AND THIOL-ENE “CLICK” CHEMISTRY

Thiol-ene-elick" chemistry proceeds with facile reaction conditions for complete conversion,and displays a higher tolerance to various backbones and functional groups comparing with traditional coupli

会议

Telechelic polystyreneReversible Addition-Fragmentation Chain Transfer(RAFT) po

IMPACT OF ADDITIVE OF INORGANIC FILLERS AND CATION RECEPTOR ON PROPERTIES OF POLYMER GEL ELECTROLYTE

Polymer gel electrolytes are systems which may be used to create a new generation of lithium-ion cells.These materials consist of a polymer matrix and liquid electrolyte immobilized in its structure.P

会议

gel electrolytesinorganic fillerscation receptorphysicochemical properties

汽轮机调门各种故障的影响及处理方案

本文主要分析汽轮机调门的热工设备在运行中可能会出现的哪些故障,通过模拟故障,观察阀门的动作情况,根据现象提出相应的在线处理故障的方法,,为类似问题的解决提供技术参考与借鉴。

会议

汽轮机调门热工故障模拟现象在线处理

天然染料共敏化太阳能电池中共吸附剂的研究

自1991年瑞士科学家Michael Gratzel和Brian ORegan发明染料敏化太阳能电池(Dye-Sensitized SolarCells，DSC)以来，其光电转换效率得到了逐步的提高，目前其最高效率达13％。采用紫外-可见吸收光谱对花青素、β-胡萝卜素、2种染料混合共敏以及添加了共吸附剂脱氧胆酸(DCA)的混合共敏4种染料体系进行光谱吸收性能测试,发现混合共敏体系能有效地拓展光谱吸

会议

染料敏化太阳能电池共吸附剂氧化还原电势光电转换效率

氯气刻蚀法合成碳化物衍生炭及其性能

碳化物衍生炭(carbide derived carbonCDC)是新型的纳米孔材料，利用不同形貌(晶须和颗粒)的立方相SiC为前驱体与氯气与在1000℃反应形成碳化物衍生介孔炭,利用XRD、SEM、低温氮气吸脱附等研究不同形貌SiC对于生成碳化物衍生物结构、性能的影响.SiC晶须和纳米颗粒制备的介孔炭具有高比表面积(395和634 m2/g)、集中的孔径分布(3.41和4.91 nm).SiC纳

会议

碳化物衍生炭氯气刻蚀法孔径分布吸附能力

利用发泡-冷冻-凝胶法制备三维互联等级大孔SiC

与本文相关的学术论文