No abstract

This paper discussed the fabrication of cesium iodide (CsI) and nickel (Ni) tubes in the anodic aluminum oxide (AAO, Al2O3) template by dropping-drying, electroless deposition, and anodization processes. The CsI dopes with Tl as scintillator can converts incident X-ray into visible light with very high conversion efficiency of optical photons. The CsI compound is so soft and extremely hygroscopic, it is very difficult to polish to obtain a smooth and optical flat plane. However, the nano-scale flat plane can be achieved when CsI was deposited in AAO template. The ionic compound of CsI can dissolve in water to form I- and Cs+. And, I- and Cs+ can absorb on AAO to form crystalline CsI after removing or drying water. Because CsI has a good wetting adhesion with AAO CsI can easily form nanoparticles and further thin film on AAO wall.

In this research, lead (Pb) nano/sub-micro wire arrays were fabricated with Anodic Aluminum Oxide (AAO) templates of 30,100 and 300nm in diameters. Through vacuum injection molding process, Pb/AAO composite was obtained, and lead sulfide (PbS) could further synthesized after exposed to vaporized sulfide. The AAO templates with different pore size were produced by using 99.999% high purity aluminum in two-step anodization. Three types of solutions include 10vol.% sulfuric acid, 3wt.% oxalic acid and 1vol.% phosphoric acid solutions were adopted to achieve AAO of various pore size. Different sulfurization temperatures and time periods were applied for studying on the properties of PbS. Finally, the morphology, composition, structure and elements distribution of the as-prepared Pb and PbS nano/sub-micro wires were confirmed by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X -ray diffraction (XRD) and element-mapping analysis. The results indicated that Pb nano/sub-micro wires obtained successfully after vacuum injection molding process with 50 kgf/cm2 hydraulic pressure and PbS nano/sub-micro arrays formed completely by sulfurization at 500℃ for 5 hours.

not Available.

This paper discussed fabrication of a very low thermal resistance of thermal interface membrane (TIM). It is assumed that anodic aluminum oxide (AAO) template with silver nanowires inside can function very well as TIM. The TIM was made of well-aligned silver nanowires are expected to reduce the thermal resistance between the heat sink and the electronic device, a chip for example. This work also calculated the pore density, surface area, and porosity of AAO, and thermal conductivity values of AAO with different diameter nanowires inside.