搜索结果: 31-45 共查到“知识库 复合材料其他学科”相关记录478条 . 查询时间(3.896 秒)
Influence of graphite on electrical properties of polymeric composites
Electrical properties Polymeric composite materials Graphite
2009/12/3
Purpose: of this work was to prepare polymeric composite materials with different contents of graphite and to search the influence of graphite on electrical properties of these materials.
Design/meth...
Intelligent epoxy matrix composite materials consisting of Tb0.3Dy0.7Fe1.9 magnetostrictive particulates
Magnetic properties Tb0.3Dy0.7Fe1.9 Magnetostrictive composite materials
2009/12/3
Purpose: This paper presents the acceptable technology to fabricate epoxy-bonded Tb0.3Dy0.7Fe1.9 composites in an effort to produce Tb0.3Dy0.7Fe1.9 bulks with good magnetostrictive properties through ...
Mechanical and morphological properties of basalt filled polymer matrix composites
LDPE Basalt Fracture surface Mechanical properties
2009/12/3
Purpose: The aim of this work is to study the effect of basalt on physical, mechanical and morphological of the
injection molded LDPE.
Design/methodology/approach: In this study, the effect of basal...
The solidification process of the AK12/SiC+C composite suspension in various heat exchange conditions
Composites Solidification Thermovision Structure
2009/12/2
Purpose: In the research work the result of the structure and solidification analysis for aluminium cast composite
with ceramic particles in different solidification conditions have been presented. T...
Sintered composite gradient tool materials
Sintering Composite materials Gradient materials Tool materials
2009/12/2
Purpose: Development of a new generation of the composite gradient tool materials with the core sintered with
the matrix obtained using the powder metallurgy of the chemical composition corresponding...
The formation of the structure of cast composites in different solidification conditions
Composites Solidification Thermovision
2009/12/2
Purpose: In the research work the result of the reinforcement displacement and solidification analysis for
aluminium cast composite with ceramic particles in different solidification conditions have ...
Solidification curves and structure of heterophase composite
Composites PAMMC Solidification
2009/12/2
Purpose: This paper presents results of solidification tests for homo- and heterophase composites. Researches
concerned influence of reinforcement particle for solidification process of composite mat...
EOC-g-MAH共混增韧SGF/PP泡沫复合材料的制备及力学性能
泡沫复合材料 增韧 界面结合
2009/11/25
采用型内二次发泡工艺制备了马来酸酐接枝乙烯-1-辛烯共聚物(EOC-g-MAH)共混增韧短玻璃纤维(SGF)/聚丙烯(PP)泡沫复合材料，考察了EOC-g-MAH含量对复合材料的泡孔形貌、微观结构和力学性能的影响。结果表明，EOC-g-MAH的引入改善了泡沫体的发泡效果，平均孔径减小约35%，泡孔密度提高近4倍且分布均匀。SGF与基体间的界面结合得到显著增强，且EOC-g-MAH在SGF表面形成了...
PEI微孔纤维及PMMA/PEI复合纳米纤维的制备与表征
聚醚酰亚胺 同轴共纺 纤维
2009/11/13
利用静电纺丝技术制备了具有微孔结构的聚醚酰亚胺(PEI)纳米纤维，在此基础上采用同轴共纺技术获得了有机玻璃/聚醚酰亚胺(PMMA/PEI)纳米复合纤维，考察了不同的纺丝工艺参数对PEI和PMMA/PEI纤维形貌的影响. 实验结果表明，在低浓度下单纺可获得直径0.05~0.5 mm的PEI微孔纳米纤维，使用同轴共纺技术能获得表面光滑的PMMA/PEI复合纳米纤维；经过4 MPa压置处理10 min的...
反应烧结制备Si3N4-BN复合材料
BN 反应烧结 复合材料
2009/11/12
以Si粉和BN粉为原料，Fe2O3为烧结助剂，采用反应烧结法于1450℃氮气气氛下制备了Si3N4-BN复合材料. 利用XRD研究了不同烧结制度和BN含量下复合材料的物相组成，利用SEM对材料断面形貌进行了观察，并测定了不同BN含量材料的显气孔率、体积密度和常温抗折强度，同时探讨了Fe2O3的助烧机理和b-Si3N4的形成机理. 研究结果表明，当氮化温度为1450℃、保温时间为45 h时，Si可完...
改性电极复合材料的导电性和电化学性能
钒电池 钛酸酯偶联剂 复合材料
2009/11/11
采用不同方式在钒电池电极复合材料中加入钛酸酯偶联剂进行改性，研究了改性复合材料的导电性和在钒电池电解液中的电化学性能. 结果表明，煤油作为偶联剂溶剂在一定范围内可使复合材料电阻率有明显下降；加入偶联剂的复合材料电极在钒电池电极反应中可能会伴有少量的电池副反应. 通过SEM分析了复合材料的微观结构.
有机-无机纳米复合功能材料的研制
无机-有机纳米复合 纳米粒子 复合功能
2009/11/6
将经过表面化学修饰的纳米粒子引入聚合胶体，制备了一系列具有特殊功能的有机-无机纳米复合薄膜材料. 聚合胶体通过控制硅氧烷前驱物的水解-聚合过程制备，纳米粒子包括ZrO2, SiC, AlOOH和ZnO等. 纳米粒子经过溶胶-凝胶过程对其进行表面改性，以改善其分散性能、优化界面结合或防止体系中有机组份的老化. 纳米粒子的作用主要是赋予传统的有机-无机杂化材料“第三功能”，如耐擦伤、耐腐蚀、抗紫外线等...
荧光磁性双功能Fe3O4@PHEMA-Tb微球的制备及其蛋白固定化
荧光磁性高分子微球 光化学合成 蛋白固定化
2009/11/4
以甲基丙烯酸-2-羟基乙酯为单体，N,N￠-亚甲基双丙烯酰胺为交联剂，采用光化学方法在Fe3O4磁性液体中制备了磁性聚甲基丙烯酸-2-羟基乙酯微球，合成了含有稀土元素Tb的荧光磁性高分子微球，以牛血清白蛋白为模型对微球固定释放蛋白能力进行了研究，用VSM, PCS, FT-IR, TG-DTA, SEM, FS, UV-Vis等技术对微球的性能进行了表征. 结果表明，荧光磁性高分子微球粒径为29....
复合材料飞机结构技术成熟度评价方法
先进复合材料 飞机结构 技术成熟度
2009/11/2
飞机设计人员在飞机总体方案论证阶段对主要结构件进行选材时, 需要对复合材料飞机结构的技术成熟度进行评估, 以确定是否选用复合材料。借鉴技术完备等级(TRL) 标准, 提出了一个复合材料飞机结构技术成熟度定量评价方法(TEMCAS)。TEMCAS 方法将复合材料飞机结构的技术成熟度分为 8 个等级, 涵盖了复合材料结构技术从设计需求到结构应用的整个过程, 通过对波音公司复合材料机身结构技术的技术成熟...
Alkali-activated composites based on slags from iron and steel metallurgy
steel slag blast furnace slag alkali activation
2009/10/23
Slag as a secondary raw material from metallurgy is most often heaped in slag disposal areas without any profit. This paper deals with alkali activated slag from iron and steel production which can be...