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Hong 2,a 1 ReSEM/Dept. of Applied Chemistry, Konkuk University, 322 Danwol-dong Chungju, Chungbuk Korea 380-220, Korea 2 ReSEM/Department of Materials Science and Engineering, Chungju National University, 123 Geomdan-ri, Iryu-myeon, Chungju, Chungbuk, 380-702, Korea 3 School of Metall. and Mat.
Generally, the methods for improving the kinetic properties can be grouped into four categories; multi-component alloying, depositing catalytic materials such as Ni, Pd, PTFE on the surface of Mg, synthesizing active Mg by chemical reaction and crystal structure modification to nanocrystalline and amorphous phases [1-3].
Continuous typed Mg and Ni chips in initial mixtures turned out to be spherical shapes with porous surface structure after HIMA using nominal compositions of Mg-Ni-H systems.

The information of crystal structure was obtained by Philips X'Pert Pro X-ray diffraction using CuKα radiation.
In order to clear the interface of the Ti/TiN multilayer and get a sharp photographic image, the Ti/TiN multilayer films deposited on 17-4PH substrate were immersed in the HF+HNO3 (1:9) solution for 9 min.The SEM results distinctly indicated that the structure of the Ti/TiN multilayer film has Ti and TiN bi-layers.
Acknowledgements This research was financially supported by State Key Laboratory of Physical Chemistry of Surface (90000460200605).

Lotników 32/46, 02-668 Warsaw, Poland 3 Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland 4 Institute of Microelectronics and Optoelectronics of Faculty of Electronics and Information Technology of Warsaw University of Technology, 75 Koszykowa Str., 00-662 Warsaw, Poland a Katarzyna.Racka@itme.edu.pl, b Emil.Tymicki@itme.edu.pl, ccivrilios@gmail.com, d Krzysztof.Grasza@ifpan.edu.pl, eMichal.Kozubal@itme.edu.pl, fElzbieta.Jurkiewicz@itme.edu.pl, g Rafal.Jakiela@ifpan.edu.pl, hAndrzej.Brzozowski@itme.edu.pl, iMariusz.Pawlowski@itme.edu.pl, jMiroslaw.Piersa@itme.edu.pl, ksadlo@orange.ichtj.waw.pl, lKrupka@imio.pw.edu.pl Keywords: n- or p-type 6H-SiC, PVT, open or closed seed backside, structural characterization, electrical properties Abstract. n- and p-type 6H-SiC single crystals grown by PVT method using different charge materials - poly-SiC sinter or fresh SiC powder - have been studied.
Besides, macrodefects in the form of hexagonal voids appear in crystals and during the growth process they move along the growth axis and destroy the crystalline structure [1].
For both SiC crystals investigated, crystalline structures typical of 6H polytype were confirmed by X-ray diffraction (spectra not shown here).

Elastic Half Space under Axisymmetric Surface Loading and Influence of Couple Stresses Jintara Lawongkerd1,a, Toan Minh Le1,b, Suraparb Keawsawasvong2,c, Suchart Limkatanyu3,d and Jaroon Rungamornrat1,e* 1Applied Mechanics and Structures Research Unit, Department of Civil Engineering, Chulalongkorn University, Bangkok 10330, Thailand 2Department of Civil Engineering, Thammasat School of Engineering, Thammasat University, Pathumthani 12120, Thailand 3Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Songkla 90110, Thailand aljintara@gmail.com, btoanminhle.ce@gmail.com, cksurapar@engr.tu.ac.th, dsuchart.l@psu.ac.th, ejaroon.r@chula.ac.th Keywords: Half space, Couple stresses, Size dependence, Axisymmetric surface loading Abstract.
Introduction Micro- and nano-technologies have been well recognized and increasingly applied in various fields, including physics, biology, chemistry, material sciences, engineering, and medicines (e.g., [1]).
To take the influence of material small-scale structures into account in a continuum fashion, various size-dependent elasticity theories including Cosserat theory [3], the couple stress theory [4-6], the strain-gradient-based elasticity theory [7], the modified couple stress theory [8], and the consistent couple stress theory [9] have been proposed.

A model for predicting the operational and strength properties of structural epoxy composites depending on dispersed solid phase of metal waste content and a highly active accelerator in them is designed. 1 Introduction The operation of modern structures, mechanisms and various technological equipment in hard operating conditions under the influence of aggressive environments, with alternating loads and high temperatures, causes a constant increase in the set of requirements for the structural composite materials used in them.
They are widely used in the repair of damaged metal pipelines and household batteries for heating homes, as materials for the manufacture of structures and their elements, can be drilled, sanded, cut and painted [5-6].
Ki Lin, Recent Trends in Green and Sustainable Chemistry & Waste Valorisation: Rethinking Plastics in a circular economy, Curr.

It maybe that the H2 is ascribed to the degradation of the matrix being rich in hydrogen above 600˚C, abundant H2 comes from condensation of aromatic and hydro aromatic structures or the decomposition of heterocyclic compound [26,27].The curve of the evolution of CH4, H2 and CO can be seen from Figs 4.
The structure and reaction processes of coal.
Chemistry of coal utilization.

Duggan' 'Department of Mechanical Engineering, University of Hong Kong, Pokfulam Road, Hong Kong 2 Department of Chemistry, Materials and Forensic Science, University of Technology, Sydney, P.O.
It has been reported [4-6] that under proper heat treatments, the Zn-22; wt.% Al alloy transforms to a fine-grained two-phase equiaxed structure which exhibits optimum superplastic properties at approximately 250°C.
Results A cored structure consisting of the α and β phases was clearly identified in the as-cast material for all composites (Fig. 1(a)).

., Research Institute of Industrial Chemistry, 532 17 Pardubice - Semtin, Czech Republic a michal.benak@stuba.sk, bmilan.turna@stuba.sk, cpeter.palcek@fstroj.uniza.sk, d petr.nesvadba@explosia.cz Keywords: Explosion welding, Bimetallic material, Welding parameters, Joint quality, Optical microscopy, X-ray microanalysis Abstract.
Application of Mg alloys, Al and its alloys reduces weight and thus also the price of welded structures.
Owing to the pressure wave acting upon the accelerated material plastic deformation of AZ 63 alloy occurred and from the initial polyhedral texture a strained structure was formed.

In particularly ES of polymers have been extensively studied during the last years because of its simplicity and efficiency in the fabrication of fibrous structures with microscale and nanoscale dimensions with a very high surface area.
Analytical evaluation of the interdigital electrodes capacitance for a multi-layered structure.
Analytical Chemistry, 2000, 72(16): p. 3696-3708

Savage 2, Hyung Bock Lee 3 , Thomas Tsakalakos4 and Mamoun Muhammed 2 1Materials Chemistry Division, Royal Institute of Technology, SE 100 44 Stockholm, Sweden 2 Dept Functional Materials, Defence Research Agency (FOI), SE 58111, Linköping, Sweden 3 Department of Ceramics Engineering, Myong-Ji University, 449-728, South Korea 4 Department of Ceramic and Materials Engineering, Rutgers University, New Jersey 08854, US Keywords: Microwave absorption, nanocomposites, complex ferrite, PMMA, X-band, P-band Abstract The influence of mixtures of Ni0.5Zn0.4Cu0.1Fe2O4, CoFe2O4, and graphite on the permeability, permittivity and microwave absorption properties in a composite embedded with insulating polymeric matrix, that can be used for X- and P-band radar absorption, has been investigated.
Introduction Microwave absorption materials are important for suppressing microwaves reflected from metal structures in civil and stealth defence systems for military platforms.
This indicates that the spinel structure of Ni0.5Zn0.4Cu0.1Fe2O4 has been successfully produced as a single phase by the controlled chemical coprecipitation.