Materials Literature
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Three volatile corrosion inhibitors (VCIs) namely, benzoic hydrazide benzoate (BHB), benzoic hydrazide salicylate (BHS), and benzoic hydrazide nitrobenzoate (BHN), were synthesized and evaluated as corrosion inhibitors of mild steel, brass and copper by weight loss method. Eschke test method, sodium chloride inoculati…
This book arises out of a course I am teaching for a three-credit (42 hour) graduate-level course Dosimetry Fundamentals being taught at the Department of Nuclear Engineering and Radiological Sciences at the University of Michigan. It is far from complete. A formal course in dosimetry usually starts at Chapter 4, Macr…
This paper presents the modelling of a Polyvinyl Chloride (PVC) resins manufacturing process with batch process simulator, SuperPro Designer V6.0. The simulation model has been developed based on the operating condition of a local PVC manufacturing plant. As the polymerisation process is carried out in batch operation…
High voltage rotating machines remain to play a significant role in generating electrical energy. One of the main causes for down times of these machines is related to problems in the winding insulation. The deregulated energy market leads to cost pressure on the producers of the insulations and the utilities. While m…
Abstract: Partial discharge monitoring is an effective on-line predictive maintenance test for motors and generators, as well as other electrical distribution equipment. The benefits of on-line testing allow for equipment analysis and diagnostics during normal production. Corrective actions can be planned and implemen…
Diamond layers have a potential application as the highest band-gap semiconductor for electronic devices. One of the major problems is to form electric contact on the diamond surface useful for an electronic device. This paper shows the properties of the contacts formed by the very promising ion implantation technique…
Thin films of SrAl 2 O 4 :Eu,Dy were successfully deposited on polyethylene substrates at room temperature by pulsed ion-beam evaporation. From X-ray diffraction analysis results, the thin films were found to consist of a crystallized SrAl 2 O 4 :Eu,Dy phase. In the measurements of the photoluminescence properties of…
Influence of Al content on corrosion resistance of Mg-Al-Zn alloys containing 1 to 9 mass%Al was investigated in chloride environments. The corrosion rate decreased with increasing the Al content in the alloys regardless of the testing methods such as salt immersion test (SIT) and salt spray test (SST). The immersion…
Different Eu 2 O 3 fine particle films were prepared by the laser ablation method. Under a continuous wave (CW) 325 nm laser light irradiation, their photoluminescence spectra are measured both in vacuum and in O 2 gas atmosphere. All the specimens display reversible spectral change and clear luminescence colour chang…
This article proposes a novel concept of hemostatic forceps for less invasive surgical operation. Hemostatic forceps has more than 400-year's history but remain an instrument with a potential of over-pressure induced lesion. The proposed hemostatic forceps allows a possibility to limit the clamping pressure within a s…
The oxidation rate of resin-bonded magnesia-carbon refractory, MgO–C, containing 5 mass % carbon, was measured continuously with a thermobalance in the temperature range from in and mixed gases with and of oxygen partial pressure, , respectively. The effect of the oxygen concentration in the atmospheric gas on the oxi…
This work contains a comparative study for the signal gain of thulium-doped fiber amplifier (TDFA) in the S-band. Different doping techniques are used to obtain different concentration profiles in silica fibers. The optimal one is found to be the step like profile. TDFA is investigated in new prepared glass hosts. The…
Environmental barrier coatings (EBCs) are being developed for silicon carbide fiber reinforced silicon carbide matrix (SiC/SiC) composites to protect against accelerated oxidation and subsequent silica volatilization in high temperature, high-pressure steam environments encountered in gas turbine engines. Engine testi…
Micro-probe Raman piezospectroscopy has been applied to analyse the behaviour of bulk samples of Lead Zirconate Titanate doped with Nb, Sr and Y (PZT-NSY) under mechanical load by performing 4-point bending experiments. The samples experienced different degree of silver migration from Ag electrodes. A residual stress…
The process of alkaline hydrolysis of polyester (PET) fabric under high-pressure conditions of over 100 MPa was examined. The decomposition of the PET fabric was accelerated with increased pressure. The addition of surfactant also enhanced the reaction rate when the concentration was more than 1.0 g/l. At high surfact…
Localized synthesis of Si nanocrystals (nc-Si) in plasma enhanced chemical vapor deposition-grown Si-rich (SRSO) layer is demonstrated using a laser annealing at intensity of . At an optimized surface temperature of , the precipitated nc-Si in annealed SRSO results in near-infrared photoluminescence at . The refractiv…
An accurate model description of the effects of stress on magnetic properties of materials has become increasingly important for quantitative analysis of magnetic NDE measurement results, and to the development of magnetostrictive sensors for NDE applications. The model of the magnetomechanical effect developed in the…
Model calculations have been carried out for a (5,5) single walled carbon nanotube (SWNT) C60H20 and cumulene C2nH4 or acetylene C2nH2 (n = 1–4) chains and for their complexes obtained by insertion of a respective chain into the nanotube to check whether the theoretical simulation can (a) reproduce the stabilization o…
65 nm and 45 nm silicon devices will utilize compositionally critical processes for gate dielectrics, capacitor dielectrics, gate and capacitor electrodes, and ultra shallow junction layers. For example, small changes in nitrogen composition have been correlated with unacceptable shifts in electrical properties of dev…
The joining of graphite, ceramic SiC and Cf/SiC composites via preceramic silicone resin(SR) at high temperature (800-1400℃) was studied. The curing and pyrolysis process of SR, pyrolysis temperature, inert and active fillers were especially discussed. The results show that the curing process of SR was accomplished by…