Search results

Meanwhile, the average corrosion depth of MgO/C brick numbered from 1# to 4# is summarized in Fig. 2.
Consequently, MgO grains in the brick can be removed more easily from the brick structure by mechanical movements of the slag [8].

The number of laser beam passes and the pulse duration were varied in this case [1].
Metallographic Analysis The metallographic sections were prepared to conduct a microanalysis on samples by using grinding skins with different grain sizes of the abrasive.

The design of the evaporation system allows high adjustability of various parameters in order to obtain the ability of obtaining desired results for such variables as homogeneity, film thickness, adhesion strength, grain structure, and stress.
The number of these unbound wave vectors can be reduced by controlling the geometries of the cavity.

The nature of the admixture also influences the kinetics of the contact melting, especially in cases where there is an electric potential: alkali earth admixtures create 30% less contact interlayers by length in comparison to the regular In admixture; this may be explained by a possible internal contact melting in the Bi-In system, where indium gathers along the grain boundaries, thus facilitating transition of the boundary zones of bismuth to the liquid state.
T., The Effect of Doping of Lead with Lithium and Zinc with Strontium on the Kinetics and Phase Formation in a Number of Low-Melting Eutectic Systems User in Electronics and Heat-Transfer Agents.

Introduction A large number of polymers having the conjugated backbone structure such as polypyrrole [1], polycarbazole [2], polythiophene [3] and polyfluorene derivatives [4] have been synthesized and used as the electroactive materials.
Microscopically, the polymer film was ordered arrangements of the granules with a grain size of 100 nm and the growth of the nuclei was in the form of clusters.

Introduction Titanium dioxide (TiO2) is a multifunctional material having a number of potential applications, such as medical technology [1], gas sensors [2] and wear protection [3].
Experimental Procedures Commercial TiO2 powder (METCO 102, Sulzer Metco Inc., U.S.A) with the grain size of about 20-50 µm was used as feedstock and deposited using the A-2000 atmospheric plasma spraying equipment with F4-MB plasma gun (Sulzer Metco AG, Switzerland).

., sulfonic and carboxylic groups) in CTMP, kappa number (i.e., residual lignin content) of unbleached kraft pulp, and beating degree of bleached kraft pulp on the conductivity of PAn-coated conductive paper were investigated [8, 14].
The amount of PAn coated increased with increasing content of sulfonic groups in CTMP or decreasing kappa number of unbleached kraft pulp.
Both SEM and AFM observation revealed the fine grain microstructure of the PPy on the composites with average grain sizes in the range of 100~200 nm, and the PPy on the samples doped with NSA and AQSA-Na exhibited quite different morphology as compared to those doped with PTSA and its sodium salt [16, 17].

The diffusion zone is formed by the precipitates of nitrides of iron and other metals both at the grain boundaries and within the grains.
Wear rate curves obtained for un-treated and treated specimens are shown in Fig3.The obtained results are plotted in graphs showing the weight loss against number of revolutions for different treating temperature.
Fig.3 The relation between weightloss and Number of revolutions Corrosion resistance.

Many efforts have been carried out to balance its properties at room and high temperatures such as using grain refinement, alloying, or compositing [2][3].
A number of pure elements such as Fe, Mn, and Mo have also been used alloying or compositing NiAl [10].
The increase in hardness can be related to two reasons; firstly the formation of other intermetallic compounds such as TiNi and TiAl, and secondly, the presence of the oxide compounds in the lattices site or the grain boundary of NiAl.
Vickers hardness of the synthesized products obtained by the SHS reaction of Ni-Al-TiO2 with Al addition by 0.74 wt.%, 1.11 wt.%, 1.48 wt.%, and 1.85 wt.% Acknowledgement The authors are grateful for the financial support by the Directorate General of Research and Development Strengthening, Ministry of Education and Culture of the Republic of Indonesia with Grant Number: 133.32/A.3-III/LPPM/IV/2020.

The increase of the size of grains, explained by the formation of agglomerates in the moment of the milling, supports the observed increase of ε´ (fig.9), with the increasing of the frequency for all the studied samples, while in the CaP-Ti reaction, is observed a decrease of the CaTi4P6O24 particle size, with the rise of the milling time, suggesting an increase of the crystallites number [17].
The increase of the size of grains, explained by the formation of agglomerates in the moment of the milling, supports the observed increase of ε´ with the increasing of the frequency for all the studied samples, while in the CaP-Ti reaction, is observed a decrease of the CaTi4P6O24 particle size, with the rise of the milling time, suggesting an increase of the crystallites number.