نتایج جستجو برای: corrosive properties

تعداد نتایج: 871535  

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

Different amounts of nanoclay were incorporated into the acrylic resin matrix at 0, 1, 3, and 5 wt.% loadings. The coatings were applied on low carbon steel plates. Optical microscopy, sedimentation test, transmission electron microscopy, and X-ray diffraction were employed to investigate the dispersion of nanoclay in matrix. The corrosion resistance of coatings was evaluated by electrochemical...

In this paper, graphene oxide decorated with cerium oxide (CeO2) nanoparticles was prepared and used as anticorrosive pigments in epoxy nanocomposite coatings. The synthesized nanoparticle was characterized by FTIR, XRD, SEM, and EDX analyses. Graphene oxide decorated with CeO2 nanoparticles was dispersed in epoxy resin by sonication. The optimum nanoparticle content of th...

Journal: :Applied Surface Science 2021

In this research, a silver nanoparticle/polytetrafluorethylene (AgNP/PTFE) coating for metallic implants was fabricated using facile layer-by-layer method. PTFE nanoparticles were immobilized in sol–gel matrix and dip-coated onto 316L stainless steel via mussel-inspired approach followed by AgNP deposition. Benefiting from the synergistic effect of antibacterial non-stick PTFE, AgNP/PTFE exhibi...

Journal: :Gastroenterology and hepatology from bed to bench 2016
Seyed Mohsen Dehghani Mitra Aldaghi Hazhir Javaherizadeh

A common belief is that alkali ingestion causes severe esophageal damage and limited gastric injury due to the buffering action of acid. Gastric injury has been observed in patients who ingested alkali. Gastric outlet obstruction (GOO) secondary to caustic ingestion occurs due to fibrosis after resolution of the acute injury and inflammation, most commonly 6 to 12 weeks after initial ingestion....

2014
Y. Ishida F. Nishiwaki Yoshinori Ishida

This paper presents the experimental research into the evaluation of lubricity for polyolester (POE) lubricant with HFC-134a refrigerant in rotary and reciprocating compressors for household refrigerators. In order to evaluate the lubricity for POE lubricant with HFC-134a refrigerant, we conducted 4-balls wear tests in the mixing environment of POE lubricant and HFC-134a refrigerant. In the pre...

Journal: :Transactions of the Japan Society of Mechanical Engineers 1970

Journal: :The Journal of Thoracic and Cardiovascular Surgery 1984

Journal: :Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) 2009

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