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Enggvist: International Journal of Refractory Metals and Hard Materials (2003), p. 55
McColm: Ceramic Science for Materials Technologists (1983), p. 321
Andrén: International Journal of Refractory Metals and Hard Materials (2002), p. 345
Gestrich: International Journal Refractory Metals and Hard Materials Vol. 20 (2002), p. 3
Shi: Materials Science and Engineering A. (2005), p. 335

At the third stages, the porosity falls below 10%, materials continue transporting for filling the pores.
International Journal of Thermal Sciences, 2017, 120: 50-62
Optical analysis of polymer powder materials for selective laser sintering[J].
Journal of Materials Processing Technology, 2015, 225: 326-336
Critical reviews in solid state and materials sciences, 2010, 35(4): 263-305.

Thermoplastic materials, so-called filaments, are used as the feedstock.
,Ubaidillah,Arifin, Z., A review on the fused deposition modeling (FDM) 3D printing: Filament processing, materials, and printing parameters.
,Hui, D., Additive manufacturing (3D printing): A review of materials, methods, applications and challenges.
Applied Mechanics and Materials 446-447 (2013), pp. 566–570 [21] Amanullah, A.N.M.
IOP Conference Series: Materials Science and Engineering 260 (2017), pp. 12031 [23] Kim, H.

Materials and Methods The remote sensing data used in the paper are from the synthetic maximum per 15d (MVC) of SPOT-NDVI data set from 1998 to 2008 produced by the National Natural Science Foundation of “Western China Environmental and Ecological Science Data Center”.
Journal of Applied Ecology, Vol.17 (2006), p.2445-2450
Resource Science, Vol.26(2004), p.129-136
Journal of Plant Resources and Environment, Vol.16(2007), p.12-17
Journal of Northwest Botany, Vol.29(2009), p.800-809.

Wire electrical discharge machining is one of the important non-traditional machining processes for machining difficult to machine materials.
The ability to produce intricate profiles on materials irrespective of the mechanical properties made this process to be widely used in industries.
Nihat Tosun, The Effect of the Cutting Parameters on Performance of WEDM, KSME International Journal, Vol.17No.6 (2003), pp.816-824, [3].
Tosun N, Cogun C, Tosun G, A study on kerf and material removal rate in wire electrical discharge machining based on Taguchi method, Journal of Materials Processing Technology 152 (2004)316–322 [4].
Adeel Ikram, Nadeem Ahmad Mufti, Muhammad Qaiser Saleem and Ahmed Raza Khan, Parametric optimization for surface roughness, kerf and MRR in wire electrical discharge machining (WEDM) using Taguchi design of experiment, Journal of Mechanical Science and Technology,27 (7) (2013) 2133-2141 [8].

Determination of real space residual stress distributions σij(z) of surface treated materials with diffraction methods Part II: Energy dispersive approach I.
The non-destructive assessment of residual stress gradients in the near surface region of some ten to some hundred microns is of great importance in materials science in respect of surface treated materials or in-situ investigations.
Neutron methods used for sampling the volume of bulk materials with rather large strain gauges of about 2 x 2 x 2 mm3 will not be considered.
Kvick : Materials Science Forum Vol. 347 - 349 (2000), p. 95 - 100 [7] W.
Pyzalla : Journal of Nondestructive Evaluation Vol. 19 (2000), p. 21 - 31 [9] M.

The AAC beams have the potential to be an excellently energy-saving construction material and is believed to emerge as an alternative to traditional reinforced concrete beam in the near future.
Vylegzhanin, Cellular concrete as a time-tested material for capital construction, Build. materials. 3 (2004) 44-46
[7] Ramezani et al, Pushing galvanized steel strips in foam concrete, International Journal of Advanced Design Engineering, (2013) 12 p
Materials, Production, Properties and Application of Aerated Lightweight Concrete: Review, International Journal of Materials Science and Engineering. 2 (2014) 152-156
Memari and Andres Lepage, An experimental study of autoclaved aerated concrete lintels strengthened with externally bonded glass FRP, Journal of Reinforced Plastics and Composites. (2010) 3323-3327

Mechanical and Tribological Properties of AlTiN, CrN / AlTiN and CrAlTiN Coatings Deposited by Cathodic Arc PVD Totka Bakalova1,a, Nikolay Petkov2,b,*, Michal Krafka1,c, Hristo Bahchedzhiev2,d 1Faculty of Mechanical Engineering, Department of Material Science, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic 2Central Laboratory of Applied Physics, Bulgarian Academy of Sciences, 61, St.
This material presents the research of AlTiN coating properties, deposited at low temperature by cathodic arc physical vapor deposition technology.
Hultman, "Thermal stability of arc evaporated high aluminum-content Ti1-xAlxN thin films", Journal of Vaccum Science and Technology A, Vol. 20, p. 1815 (2002) [7] I.
Li, "Effect of N2 partial pressure on the microstructure and mechanical properties of reactively sputtered (Ti,Al)N coatings", Materials Letters, Vol. 59, pp. 2210 - 2213 (2005) [9] K.
Li, "AlxTi1−xN hard coatings synthesized by reactive sputtering using mosaic target", Journal of Materials Processing Technology, Vol. 176, pp. 179 - 182 (2006) [12] J.C.

Experimental Raw materials and mix proportions.
Guo, Sulfate corrosion of concrete with fly ash or slag in saline soil environment, Journal of Xuzhou Institute of Technology (Natural Science Edition). 30(2015) 70-75.
Zhang, Frost resistance of concrete under action of MgSO4 attack, Journal of Building Materials. 5(2011)698-702.
Sun, Effect of sodium sulphate solution on the frost resistance of concrete, Journal of Building Materials. 4(2001)311-316.
Sun, Frost resistance and durability mechanism of concrete under saline-alkali condition in seasonal frozen soil area, Journal of Jilin University: Earth Science Edition. 4(2014)1244-1253.

Rather than discarding these materials, regeneration offers a sustainable alternative to restore catalytic performance and reduce waste.
Materials and Methods 2.1.
Chemical materials Regeneration of spent catalysts was carried out by two thermal routes, followed by a chemical route.
The chemical characterization of the catalysts was carried out using FT-IR spectroscopy to determine the chemical and molecule vibrations on the surface of the materials.
The Scientific World Journal 2012, 2012,