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Introduction Conventional forging processes often offer only low performances for modern high-strength materials or PM aluminium alloys.
This and the breaking surface appearance of the tensile test specimen indicate a coarse-grained structure for these two test materials.
The tests were carried out at the Institute of Materials Science of the Leibniz Universität Hannover at 20 °C ambient test temperature.
Critical damage under uniaxial conditions denotes the general resistance of materials to ductile damage.
In: Materials Science and Engineering A, Num. 364, V. 1-2, (2004), pp. 260–272

SEM studies were carried out using Zeis Evo 50 device with the microstructures and fracture surfaces of materials analyzed.
The analysis of the fracture surfaces of M and M-S materials shows that there are mainly i) transgranular cracks in MgO and ii) intergranular cracks in M-S materials [6,7].
I also thank the agencies and plant authorities for the supplied equipments and raw materials.
Park, Eds.: CRC Materials Science and Engineering Handbook (CRC Press, Boca Raton, Florida 1994)
Ress: Journal of Alloys and Compounds Vol. 371 (2004), p. 77

Introduction Energy resources is indispensable important material resources for the human survival, economic development and social progress[1].With China's rapid economic development, China has become the second largest country in oil imports and consumption all around the world.
Current Progress in the Research on Natural Gas Hydrate[J].Marine Science Bulletin,2002,21(3):78-85
Advance in earth sciences, 1999, 14(2):201-204
Advance in Earth Sciences, 2003, 18(1):138-143
Progress in Study of Natural Gas Hydrates [J].Natural Journal, 2001, 23(2):79-82.

This reaction releases heat to make the reaction continue and spread to the whole reaction system in the form of the combustion wave and finally synthesizes new materials.
SHS was first to be proposed by Merzhanov, a Former Soviet Union scientist in 1967 and developed to synthesize materials in recent decades, especially in the preparation of high temperature and wear-resistant materials.
It can greatly improve the surface properties of materials, expand the field of the use of materials and provide a new way to improve the wear resistance and corrosion resistance of the workpiece.
[3] Hong Zhao, Yang Bridge, Xing-hong: SHS coating technology and future prospects, edited by Materials Review. 2006 (20)
SCIENCE & TECHNOL00Y INFORMATION, Article ID :1672-379l (2007) 07 (a) a 0003-02.22

Skowronski2 1 Dow Corning Corporation, 7 Commerce Drive, Danbury, CT 06810, USA 2 Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, PA 15213-3890, USA Keywords: Semi-insulating, 6H-SiC, Resistivity Abstract.
Nitrogen mainly comes from growth ambient, air trapped in the pores of graphite parts, residual air in the growth chamber, or source materials.
Boron can originate from graphite parts and source materials.
The nitrogen and boron are believed to originate from the consumable materials used in the growth process and from the growth furnace ambient.
Muzykov, et al: Journal of Electronic Materials, Vol. 92 (2003), p. 505

It is known that Gamma radiation (GR) possesses required energy and wave length to produce atomic level transformations in materials.
Thus the properties of a material can be greatly altered by irradiating these materials with adequate dose of GR [4].
Exposure of these materials to high-energy particles or radiation, results in atomic displacements, lattice damage and ionization damage which can create free charges in the material [5].
Metal acetates and nitrates were taken in stoichiometric proportions as raw materials.
El-Saadawy, “Effect of gamma irradiation on the structural properties and diffusion coefficient in Co–Zn ferrite”, Journal of Magnetism and Magnetic Materials 256 (2003)63–68

The performance data related to various types of coat materials can be readily found from literatures, however, the systematic data in relation to the coated HSS hob tool life in dry hobbing has been few published, except for some results from fly tool machining experiments.
Four hobs with the same substrate material but the different coatings were employed in this study.
Qiu: Materials Science Forum, Vol. 697-698 (2012), p. 147
Ariura: Key Engineering Materials, Vol. 437 (2010), p. 189
Kubo: JSME International Journal, Vol. 47C/4 (2004), p.1140

These machining technologies are applied on materials and respectively for workpieces difficult or impossible to be machined by the so-called classical machining methods.
Practically, the electrical discharge determines the generation of a local high temperature which will lead to melting and vaporizing of small quantities of electrodes materials.
Groover, Fundamentals of modern manufacturing materials, processes and systems, John Wiley & Sons, Inc., 2007
Stoica, Diminishing Shape Errors at Electrical Discharge Machining of External Cylindrical Surfaces, Applied Mechanics and Materials. 371 (2013) 305-309
Veselovac, Technological and economical comparison of roughing strategies via milling, sinking-EDM, wire-EDM and ECM for titanium- and nickel-based blisks, CIRP Journal of Manufacturing Science and Technology 6 (2013) 198–203.

Materials Ceramic Waste As Coarse Aggregate.
Concrete ingredients consist of raw materials that are aggregate, Portland cement and water.
Mixing Slump Test Curing Sampling Cube Test Raw Materials The coarse aggregate for ceramic waste materials like flowerpot are crushed to small pieces by a hammer.
The raw materials i.e. water; Portland cement and aggregate were mixed.
Nagamanib, Strength And Durability Properties Of Concrete Containing Quarry Rock Dust As Fine Aggregate, ARPN Journal of Engineering and Applied Sciences Vol. 3, No. 5, (2008) 20-26

Experimental setup and results We have built some new original composite bars made by classical materials (carbon fiber, polypropylene honeycomb core and epoxy resin) but combined in a new way.
Some general conclusions regarding the damping factor determination, extracted from this study, can be: the damping factors analysis show that these factors must be experimentally determined for each type of material and sample, being difficult to deduce a quantitative correspondence with the parameters which influence the damping directly or indirectly; a correspondence between the damping factor and the bars free length has been obtained and direct calculus relations were found; the values of damping factors may depend on several features such as: sample dimensions (thickness, bars free length), specific mass, the quantity of material from sample, elastic and damping properties of component materials; the sample specific linear mass influence the damping factor by the fact that the samples with higher mass and width, the deformation energy which is stored in sample through the initial deformation, is dissipated in a larger quantity of material.
Ghorbel, Interface Degradation on metal-matrix composites under cyclic thermo-mechanical loading, Composites Science and Technology, 57 (1997), 1045-1056
Mangalgiri, Composite materials for aerospace applications, Bul Mater Sci, 22 (1999), 657-664
Stănescu, Experimental determinations of the damping factor and stiffness for new sandwich platbands with different core and reinforcements, Romanian Journal of Materials, 44 (2014), 405-413