Polymeric Si-Al sols were prepared from Al(OBu)and Si(OEt)(TEOS). Acetylacetone and isoeugenol were employed separately to chelate the Al precursor in order to slow down the chemical reactivity, avoiding precipitation. The characterization techniques were Fourier Transform Infrared Spectroscopy (FTIR)...
采用原位聚合与热亚胺化的方法,成功制备了一系列不同纳米AlO粒子质量分数的纳米AlO/聚酰亚胺(PI)复合薄膜.通过SEM,TEM,XRD,FTIR,LCR数字电桥,高压电源及电子万能材料试验机对纳米AlO/PI复合薄膜的微观结构,介电性能及力学性能进行了表征和测试.结果表明:纳米AlO粒子在均匀地分散在PI基体中;当纳米AlO粒子质量分数为8%...
ftalocianina,ftalonitrílo,ftiriasis,ftisano,ftisergato,ftisible,ftisis,ftisógino,fu,fuañingue, 相似单词 alocado,alocar,alocroíta,alocución,alodial,alodio,aloe,áloe,aloético,alófana, 西汉-汉西词典 adj. 【法】 业. 用户正在搜索 ...
利用FTIR对复合凝胶的热处理过程反应情况进行观测,结果表明,组分各自的相变互不影响,也不发生反应.由此可制得保持各组分特性的Al〈,2〉O 〈,3〉-SiO〈,2〉复合陶瓷薄膜.关键词:溶胶-凝胶 陶瓷 会议时间: 1996年10月1日 被引量: 2 收藏 引用 批量引用 报错 分享 ...
Experiments were conducted by using SEM-EDS,EPMA,XRD,FTIR and EPR to analyze some new Afghanishackmanitesamples. 针对新产地的紫方钠石利用电子探针能谱、X射线粉末衍射、傅立叶红外光谱和电子顺磁共振谱进行初步的研究,发现其颜色随成分中S及C l的质量分数比例而变化;晶体中含水,其中3 438 cm-1和1 623 ...
The adsorption of H as well as coadsorption of H and COon RhCo/AlO catalyst has beenstudied using in situ FTIR dynamic method.The band at 1959 cm for Rh-H vibration on RhCo/AlO (w=3%) was observed and increased in intensity without shift to low wavenumber as H coverageincrease.In the...
the CA was increased up to ~ 68° for films prepared with 0.15 wt% of AMH20 and AMH30 particles, also being in agreement with their SEM and FTIR analyses (i.e. reduced –OH groups on the MFC-AMH microdomains). In addition, the volatile 2-propanol present in the AMH during film...
β-AlO precursor powders were synthesized by the CA complexing sol-gel method at lower temperatures using metal nitrate and CA as raw materials. The thermal decomposition mechanism of the gel and the formation process of β-AlO were investigated by XRD, FTIR, TG/DSC, EIS and SEM. The results...
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The IR transmission spectrum was measured using a Fourier transform infrared spectrometer (FTIR, model FI/IR 6700, Jasco). 4. Structural study 4.1. Crystal composition The results on the concentration of doping ions (Tm3+, Ho3+ and Lu3+) are shown in Table 1. In particular, for batch #1...