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As the spark jumps across the gap, material is removed from the work piece.
Experiments are conducted using tool as Zinc coated wire of 0.25mm diameter and D2 die steel is used as the work material for the present experiment.
Aishwarya, Optimization of Wire Cut Electrical Discharge Machining of Inconel 800 using Grey Relational Analysis, Advanced Materials Research Vol. 576 (2012) pp 552-555
[4] Esmat Rashedi, Hossein Nezamabadi-pour, Saeid Saryazdi, GSA: A Gravitational Search Algorithm, Information Sciences 179 (2009) 2232–2248
[5] Taisir Eldos, Rose Al Qasim, On the Performance of the Gravitational Search Algorithm, (IJACSA) International Journal of Advanced Computer Science and Applications, Vol. 4, No. 8, 2013.

All tests are conducted in accordance with the British Standard (BS 1377) [20] and American Soil Testing Materials (ASTM) [3].
The compacted materials decrease the pore volume, which produces a stiffer structure, higher shear strength and reduces the settlement value.
Stabilization of marginal soils using recycled materials.
Road Materials and Pavement Design 15 (2014)
Science & Technology 14(1&2) (2006) 61–74

Additionally, SMAs demonstrate much better wearresistance than traditional wear-resistant materials and they are viewed as a kind of future wearresistant materials in surface engineering.
Indentation tests have been conducted for over one hundred years to measure the hardness of materials [8].
Li: Smart Materials and Structures Vol 9 (2000), p. 717
Archard: Journal of Applied Physics Vol 24 (1953), p. 18
Pharr: Journal of Materials Research Vol. 7 (1992), p. 1564

During the calculation, the dosage of cement is transferred to the dosage of fly ash by mass, the difference on density of these two materials does not considered, which results in the total volume of binder (i.e. cement plus fly ash) expands over the initial volume of cement before replacing.
Experimental Raw Materials.
Li, Evaluation of relations among basic mechanical properties of concrete with machine-made sand, Advanced Materials Research Vols. 418-420 (2012) 473-476
Zhu, Journal of Liaoning University of Engineering and Technology (Natural Science Edition) Vol. 31 3 (2012) 370-373
Zhang: Journal of Chang’an University (Edition of Building and Environment) Vol. 21 2 (2004) 4-6

However, the depletion trend of good quality material is observed from several reported material problems such as pop-out aggregates or the stained area or map cracking in some large concrete slab.
The use of uncertain quality material appeared to be unavoidable.
The results of cored samples from the same set of cracked structures indicated the complexity of ASR problems which is influenced by several factors; nature of materials, process and environmental conditions [2].
Sujjavanich, et al.: EIT Journal: Research and Development, Vol. 21 (2010), p. 15
Miyagawa, et al.: Journal of Advanced Concrete Technology, Vol. 4 (2006), p 339

Coulomb postulated that a shear fracture occurs in isotropic material, if the maximum shear stress is reached.
It and its many variants have been applied to rock, concrete, and other pressure-dependent materials [8]
The material between two cutters is left intact and a ridge between the two cutters is formed.
Copur, et al.: International Journal of Rock Mechanics & Mining Sciences.
Zhao: International Journal of Rock Mechanics & Mining Sciences, Vol. 46[1] (2009), p.8-18.

Acknowledgments This project is supported by national natural science foundation of China (50345022, 50675149) and science and technology foundation of Shanxi(20090321041).
[2] Massimiliano Barletta, Stefano Guarino: International Journal of Machine Tools & Manufacture, vol. 47 (2007), p.483
Jain: submitted to International Journal of Machine Tools & Manufacture vol.44 (2004), p.1019
(In Chinese) [6] M.B.Tian: Magnetic Materials (Tsinghua University Press, China 2000).
Yang: Advanced Materials Research, Vols. 53-54 (2008), p.9-13.

There are many different mathematical viscosity models for describing the materials characteristics.
The time data of the experiment allows the sorting of research materials.
Journal of Molecular Liquids, Vol. 243 (2017), pp. 115–123
Journal of Colloid Science, Vol. 20 (1965), Is. 5, pp. 417–437
Journal of applied polymer science (2003), pp. 3045–3057

SGS-2013-036 and the project of the Czech Science Foundation No.
Janda, Plastic behavior in shear and degradation of shear modulus of textile composite materials with simple plane wave, in: T.
Taylor, A constitutive model for anisotropic damage in fiber-composites, Mechanics of Materials 20 (1995) 125-152
Rizov, Non-linear indentation behavior of foam core sandwich composite materials / A 2D approach, Computational Materials Science 35 (2006) 107-115
Zemčík, Progressive damage of unidirectional composite panel, Journal of Composite Materials 42 (2008) 22-44

Recently, Cold Spay Method (CSM) for metal materials has been focused attention in the field of thermal spaying coating, however, in ceramics materials, has not been succeeded.
Different materials were successfully deposited on metal, glass and Si substrates.
Results of hardness measurement indicate that deposited layers exhibits mechanical property close to that of bulk materials (and for PZT and AlN deposited layers overcome hardness of bulk material), that means that hard solidification occurs not only on oxides but also on nonoxide materials during deposition.
Melting points of ceramic materials are higher than that of metal materials.
Reduction of crystallites size was observed after deposition for ceramic materials.