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عنوان البحث(Papers / Research Title)


THE EFFECT OF LASER PULSES ON MORPHOLOGY AND RHEOLOGICAL BEHAVIOR OF SILVER NANOAQUEOUS SOLUTION


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
نزار جواد هادي الاعرجي

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نزار,جواد,هادي,الاعرجي ,THE EFFECT OF LASER PULSES ON MORPHOLOGY AND RHEOLOGICAL BEHAVIOR OF SILVER NANOAQUEOUS SOLUTION , Time 20/12/2015 09:36:48 : كلية هندسة المواد

وصف الابستركت (Abstract)


number of pulses, laser ablation, silver nanoparticle (SNP), viscosity and morphology.

الوصف الكامل (Full Abstract)

ABSTRACT: This paper investigates the effect of laser pulses on the morphology and rheological behavior of silver nanoparticles SNP- Poly vinyl alcoholPVA solution in laser ablation LA technique.
Polymer and suitable number of shots used to adjust the SNP formation. 1g ofPoly vinyl alcoholis dissolved in double distilled and deionized water DDDW at 80?C using magnetic stirrer. Pure piece of silver immersed in the DDDW-PVA solution. Laser of 20,40,60,80 and 100pulses are applied at 600mJ, 8nspule duration and 532nm. Absorbance spectra of SNP solution were measured by UV-VIS spectrophotometer. The morphology properties of nanosolution are tested using atomic force microscopy AFM. The rheological behavior was investigated using cone-on-plate viscometer and surface tension device. The results show that the peak of Plasmon at 400nm indicated that the silver nanoparticle is present. AFM results show that the broadness increaseswith the pulses increasing. The viscosity and surface tension increase as thenumber of pulses increasing. A good confirming observed between structure and viscosity results. The small particle size and low range of broadness can be achieved at low number of pulses.

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