Volume 20, Issue 2 (June 2023)
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- Silica and titania nanoparticles were successfully produced by the sol-gel method
- The coating of SiO2-TiO2@PDMS on glass increased its contact angle from 30° to 152°
- The best powder composition to produce a superhydrophobic coating in this method was 75% titania and 25% silica, which provides the highest contact angle
Increasing the amount of powder as well as increasing the concentration of PDMS in the coating solution reduces the contact
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1- This study focuses on the synthesis of Fe72-xCoxCr28 (10.
2- The effect of Co content on properties of Fe72-xCoxCr28 (10alloys was investigated.
3- The effect of TMT treatment on Fe72-xCoxCr28 (10alloys was investigated.
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- The effect of GNPs on the Al-5Cu-1Mg nanocomposite was studied.
- Improvements in wear properties were obtained with GNPs combined with T6 heat treatment.
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- Oxygen and hydrogen-rich porous silicon led to excellent surface passivation with a strong electronic quality improvement of multi-crystalline silicon.
- The results demonstrated substantial improvements in Generated Current mapping
- The presence of oxygen and hydrogen-rich porous silicon led to a 30 % increase in IQE and a 25 % decrease in the exponentiation parameter
- Achieved porous silicon is a good option for advancing efficient photovoltaic cells
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Pr3+ doped TiO2 films were deposited on ITO glass substrate using nebulizer spray pyrolysis technique
- The average optical transmittance is above 80% of Pr:TiO2 films
- The optical bandgap energy of 3.57 eV was found in 0.004M Pr:TiO2 films.
- The fast response of ethanol gas sensing showed at 0.004M Pr doped TiO2 thin film with a response time of 99s and recovery time of 41s; the resistance of 0.6x106 Ω falls more than pure TiO2.
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1. Friction stir processing of AA2050 (Al-Cu-Li) alloy refined grains and distribution of intermetallic phases
2. Heat treatment increased the ductility of friction stir processed AA2050 alloy
3. Hot salt corrosion test of friction stir processed AA2050 alloy indicated a less mass loss per unit area than the base material.
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1-Successfully synthesis of hard magnetic nanocrystalline Co78Zr17B2Si1W2 alloy.
2- The Co5Zr single phase with hard magnetic properties formed during melt spinning process.
3- The transformation of Co5Zr to non-magnetic Co11Zr2 phase investigated.
4- Hard magnetic properties of nanocrystalline Co78Zr17B2Si1W2 alloy were investigated.
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- The Titanium oxide nanotubes were fabricated by anodizing, which is a simple and industrial compatible method.
- TNTs were synthesized in different lengths and heat treatment was performed to introduce an optimum dimension and atomic structure of these TNTs.
- By contact angle measurement of human blood on the Nano-coated surfaces, the most wettability between different dimensions and atomic structure was specified.
- The SBF experiments revealed the greatest potential in calcium phosphate deposition between specimens.
- Cell culture and proliferation analyses were performed to specify the most optimum size and atomic structure of TNTs as nano coating for titanium dental and orthopedic implants.
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- P3HT:ICxA based solar cells are fabricated and studied in room conditions .
- The compositional effect of donor to acceptor ratios on the properties of P3HT:ICxA has been explored.
- The optical, structural and electrochemical properties can be controlled the compositional ratios of P3HT to ICxA.
- The P3HT:ICxA device with a ratio of 1:0.6 had the best performance.
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- The coarse structure of the Al5083 alloy is refined significantly by increasing the cooling rate.
- A rising trend of the vickers microhardness values in the samples during rapid solidification.
- Bulk sample consists of ultra-fine intermetallic phases, uniformly distributed in the matrix.
- Rapid solidification combined with hot consolidation fabricate a lightweight and high-performance alloy.
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The bandgap in 2D van der Waals heterostructures (vdWHs) can be tuned by choosing different layers.
Change in the lateral dimension and/or stress can tune the bandgap of vdWHs.
The p-n junctions can be created by 2D layers in vdWHs.
Low-power LEDs can be made by using single-photon emitting sites in 2D layers of vdWHs.
Visible to near-infrared emission can be obtained by bandgap tuning in vdWHs LEDs.
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- Phosphorous oxide containing glass-ceramics were fabricated through two step heat treatment.
- Canasite type crystals precipitated as the dominant crystalline phases in all glass-ceramic specimens after heat treatment.
- The most promising chemical durability and mechanical properties were obtained using 2 weight ratio of phosphorous oxide in the glass composition.
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