List of Articles nanocrystalline

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  1 - Synthesis structural and anti-microbial characterization of nanostructured doped tin oxide
  Achyutmohan Chaudhury Utsa Debnath Sujay Munshi Goutam Basak Avigyan Dutta Suvadip Masanta Achintya Singha Aritra Banerjee Debtanu Ghosh Partha Chatterjee Apurba Kanti Deb
  10.30495/jtap.162202
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  2 - Electrical conduction in nanoceramic PGT synthesised by high energy ball milling
  SKS Parashar Satyendra Narayan Singh Mahmood Ghoranneviss Swarat Chaudhuri
  10.1186/2251-7235-7-26
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  3 - Structural and optical properties of nanocrystalline α-MoO3 thin films prepared at different annealing temperatures
  A. Hojabri F. Hajakbari A. Emami Meibodi
  10.1007/s40094-014-0161-5
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  4 - Microstrain and lattice disorder in nanocrystalline titanium dioxide prepared by chemical route and its relation with phase transformation
  Apurba Kanti Deb Partha Chatterjee
  10.1007/s40094-020-00382-5
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  5 - Effect of plasma oxidation parameters on physical properties of nanocrystalline nickel oxide thin films grown by two-step method: DC sputtering and plasma oxidation
  F. Hajakbari S. Rashvand A. Hojabri
  10.1007/s40094-019-00350-8
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  6 - Mechanical Characteristics and Failure Mechanism of Nano-Single Crystal Aluminum Based on Molecular Dynamics Simulations: Strain Rate and Temperature Effects
  R Rezaei H Tavakoli-Anbaran M Shariati
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  7 - An Efficient Green Synthesis of Copper Oxide NanoCrystalline
  M. Kargar M. Ghashang M.R. Mohammad Shafiee
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  8 - The effect of saccharin on microstructure and corrosion behavior of nanocrystalline nickel thin films in alkaline solution
  Behrooz Shayegh Nima Zaghian
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  9 - Effect of Heat Treatment on Structural and Magnetic Properties of Nanocrystalline SrFe12O19 Hexaferrite synthesized by Co-Precipitation Method
  Mansoureh Ganjali Monireh Ganjali Arvin Eskandari Masoud Aminzare
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  10 - Effect of Heat Treatment Time on the Characteristics of Coating Formed on Nanocrystalline Finemet Foils
  Sima Mirzaei Ali Jazayeri Gharehbagh
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  11 - Modeling of Pulsed Transformer with Nanocrystalline Cores
  Amir Baktash Abolfazl Vahedi
  Recently tape wound cores, due to their excellent properties, are widely used in transformers for pulsed or high frequency applications. The spiral structure of these cores affects the flux distribution inside the core and causes complication of the magnetic analysis an More

  Recently tape wound cores, due to their excellent properties, are widely used in transformers for pulsed or high frequency applications. The spiral structure of these cores affects the flux distribution inside the core and causes complication of the magnetic analysis and consequently the circuit analysis. In this paper, a model based on reluctance networks method is used to analyze the magnetic flux in toroidal wound cores and losses calculation. A Preisach based hysteresis model is included in the model to consider the nonlinear characteristic of the core. Magnetic losses are calculated by having the flux density in different points of the core and using the hysteresis model. A transformer for using in a series resonant converter is modeled and implemented. The modeling results are compared with experimental measurements and FEM results to evaluate the validity of the model. Comparisons show the accuracy of the model besides its simplicity and fast convergence. Manuscript profile
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  12 - Improving methodology for the preparation of highly substituted imidazoles using nano-MgAl2O4 as catalyst under microwave irradiation
  Javad Safari Soheila Gandomi-Ravandi Zahra Akbari
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  13 - Nanocrystalline TiO2 as an efficient and reusable catalyst for the one-pot synthesis of polyhydroquinolien derivatives via Hantzsch reaction
  Farhad Shirini Seyyed Vahid Atghia Meysam Alipour Khoshdel
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  14 - A Study on Effect of Processing Parameters on Electrical Conduction and Micro-hardness of Nano-crystalline Cu-5%at Ta Alloy.
  Roohollah Rahmanifard mohsen asadi asadabad سید میثم جاویدان
  At the present study, the mechanical alloying method was used to produce the nanocrystalline Cu-5Ta alloy. In order to achieve a specimen with desirable properties, effects of size of milling ball, atmosphere and temperature of sintering were investigated on crystalline More

  At the present study, the mechanical alloying method was used to produce the nanocrystalline Cu-5Ta alloy. In order to achieve a specimen with desirable properties, effects of size of milling ball, atmosphere and temperature of sintering were investigated on crystalline structure, electrical conduction and microhardness of specimen. The microstructural studies indicated that a finer crystallite size was attained when the complex size of milling balls being composed of 10 and 5 millimeters was applied rather than simple one of 10 millimeters. After milling, cold press and subsequent sintering were done under different atmospheres such as nitrogen, argon and vacuum at temperature of 550C. The sintered specimen under vacuum showed the better properties compared to the others. The further evaluations on specimen properties was conducted by sintering at temperatures of 700 and 850C under vacuum. The results indicated that with increasing the sintering temperature, electrical conduction and microhardness increase. Overall, the specimen milled by the complex ball size and sintered at temperature of 850C under vacuum experienced a electrical condition of 15.7% IACS and microhardness of 196.2 HV which was the best conditions to produce Cu5Ta. Manuscript profile
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  15 - ارزیابی عملکرد ابزار با پوشش های چند لایه نانوکریستال در ماشین کاری سوپر آلیاژ اینکونل 718
  رسول مختاری همامی بهروز موحدی ایرج لیرابی مهدی بازرگان حقیقی
  در این مقاله، عملکرد ابزار با پوشش­های چند لایه نانوکریستال با ترکیب TiN+TiAlN برای ماشین­کاری سوپر آلیاژ پایه نیکل اینکونل 718 در شرایط برشکاری خشک و مرطوب مورد مطالعه قرار گرفته است. برای این منظور پوشش چند لایه TiN و TiAlN با ساختار نانوکریستال توسط فرایند رس More

  در این مقاله، عملکرد ابزار با پوشش­های چند لایه نانوکریستال با ترکیب TiN+TiAlN برای ماشین­کاری سوپر آلیاژ پایه نیکل اینکونل 718 در شرایط برشکاری خشک و مرطوب مورد مطالعه قرار گرفته است. برای این منظور پوشش چند لایه TiN و TiAlN با ساختار نانوکریستال توسط فرایند رسوب فیزیکی بخار و با روش قوس تبخیری بر اینسرت‌هایی با ترکیب کاربید تنگستن- کبالت اعمال شد. نتایج حاصل از آزمون سایشی بال بر دیسک و همچنین ماشین­کاری سوپر آلیاژ پایه نیکل اینکونل718 در شرایط برشکاری خشک و مرطوب نشان داد که نانوکریستال بودن لایه­ای، عملکرد بسیار عالی را برای ابزارها در حین ماشین­کاری به‌وجود می‌آورد. وجود کریستال­ها یا دانه­هایی در ابعاد40-15 نانومتر همراه با درصد بهینه­ای از آلومینیوم در پوشش TiAlN، مقاومت سایشی بالا ایجاد می‌کند و ترکیب مناسبی از مقاومت به سایش خراشان و چسبندگی به زیر لایه به همراه چقرمگی و پایداری حرارتی مطلوب را فراهم می‌نماید. Manuscript profile