Materials Literature
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In this report, the self-assembling behavior of four diastereomeric peptides has been investigated. A series of four Ferrocene tripeptides namely Fc-(L)Phe(L)Phe(L)Leu-OMe, Fc-(D)Phe(L)Phe(L)Leu-OMe, Fc-(L)Phe(D)Phe(L)Leu-OMe and Fc-(L)Phe(L)Phe(D)Leu-OMe have been synthesized and characterized. Next, the gelation per…
In this paper, bow-tie graphene antennas of different geometries are suggeted and analyzed. Modifying the antenna geometry one can control the current pathway and, consequently, the antenna resonances.
Knowledge of the law critical current density versus magnetic field, JC(B), of a superconducting material is very important to users. In this article are presented two methods of characterization to obtain experimentally the law JC(B). These two methods are commonly used for applications in electrical engineering. The…
In the process of roads construction the necessary transport and operational characteristics should be achieved, which depend on the quality of the applied, material and technologies. Under the loads of transport means and the influence of weather conditions on the road pavement deformations and destructions occur, wh…
In this paper, a fault-tolerant five-phase flux switching machine is considered for embedded applications. Machine behavior in case of open-circuit on a single phase and two adjacent and non-adjacent phases, is developed. In this paper, only the fault on a single phase is detailed. Reference currents reconfiguration m…
This paper deals with effect of the distance between partial discharge source and sensor on the attenuation of partial discharge (PD) induced electromagnetic (EM) wave in gas insulated switchgear (GIS). The simulation of EM wave propagation was held based on Finite Difference Time Domain. EM wave induced by PD was mea…
This is the first fusion method provably viable at utility scale. Energy input is by charged pellets fired at ultraspeed from modified particle accelerators, a technique routinely used to test spacecraft meteor shields, and first proposed as a fusion driver 50 years ago. A key enabling technology, now available, is th…
The paper presents considerations useful to design low power induction heating system. Despite of the fact that an induction heating system exhibits nonlinearities, the paper uses a linear model in order to obtain an easier way of design. Thus, the series resonant inverter used in the induction heating system is model…
New polyurethane pad materials have been developed for chemical mechanical planarization using ceria-based slurries. The optimization of material properties, tailored for effective texture generation with current conditioning schemes, has resulted in improvements in both removal rate stability and defectivity versus c…
An investigation of the luminescence concentration quenching of (Lu1-xPrx)3Al5O12(LuAG:Pr) ceramics was carried out coupled with microstructural characterization by means of x-ray diffraction (XRD) and attenuated total reflection Fourier transform infrared spectroscopy (ATR FTIR) measurements. It was found that the Pr…
This thesis describes the fabrication and characterisation of alumina-doped silica fiber preforms by the modified chemical vapour deposition (MCVD) method coupled with solution doping technique. The silica soot deposited at 1800°C was examined by scanning electron microscopy (SEM) and gas adsorption technique with BET…
This paper presents a magneto-mechanical and thermal model to study the dynamic performances and to investigate the temperature of tubular linear stepping motors. The studied tubular linear stepping motors are the classical tubular Linear Switched Reluctance Stepping Motor (LSRSM). The magneto-mechanical model is deve…
Impact of high temperature at back end assembly with temperature up to 400°C to electroless Nickel Phosphorous (NiP) and electrolytic Nickel (Ni) and Nickel Phosphorous (NiNiP) grain structure and surface roughness is normally ignored. Focus Ion Beam Voltage Contrast, FIB, showed that the amorphous structure of electr…
In this paper, a novel pad conditioner, 3MTMTrizactTMPad Conditioner, B6-M990, consisting of precisely engineered microreplicated abrasive structures coated with a chemical vapor deposited (CVD) diamond film is demonstrated for Front End Of Line (FEOL) Tungsten plug and metal gate applications. Baseline marathon data…
In this paper, a bipolar transport model for low-density polyethylene under DC voltage, theorecale formulation of the model is based on the poisson's equation and continuity, transport equation. As well as on the appropriate models for injection and take into account trapping and detrapping and recombination mechanism…
In this paper we present a method to calculate the response of a 3D thin multiply connected wall to an external kink mode perturbation in axisymmetric tokamak configurations by using the radial basis functions collocation meshfree method. The wall response is expressed in terms of a stream function of the wall surface…
A novel abrasive-free planarization method named catalyst-referred etching (CARE) was developed. In this method, a polishing pad coated by a catalytic material is used. During the processing, topmost areas of the work substrate, which contacts most frequently with the catalytic material, are preferentially etched off…
Hard and brittle materials, such as wide-gap semiconductor materials, are difficult to obtain smooth surface by machining. Micro laser assisted machining (micro-LAM) was developed to achieve both smooth and high-speed machining of the hard and brittle materials, which a thermal assisted machining method by a laser irr…
Copper descaling is an acidic process to remove heat scale and oxide formation on leadframe materials of copper and its alloys prior to tin electroplating[1, 2]. This process needed for excellent solderability result. In this study, three types of copper descaler chemistry which is sodium persulfate base, with anti sm…
Glass ceramics is one of the key materials for the optoelectronic devices. Lapping is a critical technology which controls the thickness and flatness of the substrate. The modified lapping process using the fixed diamond abrasive pad with DIW (De-ionized water) was evaluated and suggested in the previous our study to…