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Nor1 1 Dept. of Mechanical Engineering, Universiti Tenaga Nasional,Putrajaya Campus, Malaysia 2 Dept. of Mechanical and Materials Engineering, Universiti Kebangsaan Malaysia, Bangi, Malaysia amujibur@uniten.edu.my, bkamal@eng.ukm.my Keywords: Warm compaction, Numerical simulation, Metal powder, Experimentation.
However, the displacement control approach is proven to be an efficient technique for non-linear plasticity analysis such as to model the compaction behaviour of powder materials since at low density levels, a large deformation can be resulted by a small amount of load [13].
The method is based on Hill's variational principle for incremental deformations and is ideally suited to isotropically Prandtl-Reuss materials and high-speed deformation.
Acknowledgements This research is financially supported by the Ministry of Science Technology and Innovation-Malaysia through the research project 03-02-03-SF0146.
Masaaki: Journal of Engineering Materials and Technology Vol. 113(1991), p. 425 10.

By processing metal materials even high loadable parts can be manufactured.
Simchi, Direct laser sintering of metal powders: mechanism kinetics and microstructural features, Materials Science and Engineering 428(2006)1, pp. 148 – 158
Das, Physical aspects of process control in selective laser sintering of metals, Advanced Engineering materials (2003), pp. 701 – 711
Dadbakhsh, Effect of selective laser melting layout on the quality of stainless steel parts, Rapid Prototyping Journal, 18(2012)3, p. 241 – 249
[4] DIN EN ISO 6892-1: Metallic materials - Tensile testing - Part 1: Method of test at room temperature, 2014 [5] EOS Material data sheet: EOS StainlessSteel PH1 for EOSINT M 270, 2008

Nuawi3,e 1Space Science Center, InstitutPerubahanIklim, UniversitiKebangsaan Malaysia 2German Academic & Career Centre, Universiti Malaysia Pahang 3Department of Mechanical and Materials Engineering, UniversitiKebangsaan Malaysia aelwaleed@ukm.my, benikkeister.2@gmail.com, cjailani@eng.ukm.my, dfaizalmt@eng.ukm.my, ezaki@eng.ukm.my Keywords:Sound absorption, Self-facing, Date palm fiber, Impedance tube.
They reported that the sound absorption coefficient of rice straw-wood particle composite boards are higher than other wood-based materials in the 500-8000 Hz frequency range, which is caused by the low specific gravity of composite boards, which are more porous than other wood-based materials [7].
Materials and Methods Date Palm Fiber The fiber is collected from the sheathingleaf base, which surrounds the stem.
Thayer: Journal of Hazardous Materials: Vol. 161 (2009), p. 608
Adachi, in: The development of sound absorbing materials using natural bamboo fibres, edited byC.A.

In addition, integrating green building materials into formwork system can help reducing the environmental impacts associated with the extraction, transport, processing, fabrication, installation, reuse, recycling, and disposal of these formwork source materials.
Thus, it helps to reduce the demand of buildings raw materials.
In order to sustain raw materials depletion e.g. trees that produce timber, using green building materials and products for the formwork system promotes conservation of declining non-renewable resources internationally.
In addition, integrating green building materials into formwork system can help reduce the environmental impacts associated with the extraction, transport, processing, fabrication, installation, reuse, recycling, and disposal of these formwork source materials.
World Academy of Science, Engineering and Technology, 53, 807- 814(2009)

Pure aluminum and aluminum alloyed with Ti and B were used as matrix materials, respectively, for pressure infiltration processing experiment.
Characterization of composite materials.
[2] Zweben C, Advances in composite materials for thermal management in electronic packaging, JOM. 50(1998) 47–51
Tavangar, Surface Modification of Diamonds in Diamond/Al-Matrix composite, Advanced Materials Research. 59(2009) 125-130
[14] D.P.H Hasselman, Lloydf.Johnson, Effective thermal conductivity of composites with interfacial thermal barrier resistance, Journal of Composite Materials. 21(1987) 508-510

AE is a common physical phenomenon, and the signal strength of AE of plastic deformation or breakage of most metal materials is weak, and ears can not hear it.
For the components or materials in movement, AE signals can be collected, and analysis can be conducted on the signals combining with AE physical features of materials, so that the potential defects of materials can be detected[2][3].
Journal of North University of China (Natural Science Edition), 2006, 27(5):456-461
[7] Fricker,S., Vogel,T., Site installation and testing of a continuous acoustic monitoring [J], Construction and Building Materials, 2007, 21(3): 501 ~510
[8] Carpinteri, A., Lacidogna, G, Damage monitoring of an historical masonry building by the acoustic emission technique [J], Materials and Structures, 2007,39(2):161~167.

Introduction Nanotechnology is described as the use and creation of materials with a dimension range from 0.1 to 100 nm for the processing and fabrication of systems and devices [1].
Throughout the decades, polymer nanocomposites have attained a huge attraction from many researchers because these materials are proven to achieve an excellent properties improvement with a very small amount of nanofillers [2].
Fe3O4 is also known as ferroferric oxide, which is one of the functional materials that has been extensively used as microwave absorbing materials and in biomedical fields due to the biocompatibility, low toxicity and excellent magnetic responsiveness [7].
Materials and Methods Raw Materials.
Journal of Inorganic and Organometallic Polymers and Materials. 27 (2017) 323-333

Tensile properties of 1060 Al alloy subjected to constrained groove pressing Kaihuai YANG1,a , Wenzhe CHEN 1,2,b 1 College of Materials Science & Engineering, Fuzhou University, Fuzhou 350108, P.
However, nearly all of the investigations were focused on the microstructures evolution and grain refinement of the materials.
Static toughness represents comprehensive mechanical property of materials, and indicates a combination of materials' strength and plasticity [16-17].
The static toughness U of materials can be calculated by ∫= t dU ε εσ0 (1) where σis the flow stress and tε is the total strain at fracture.
Chen: submitted to The Chinese Journal of Nonferrous Metals (2010)

Polymer nanocomposites Polymer/clay nanocomposites are materials composed of a polymer matrix and nanometer-size clay particles.
The processing of materials was performed in a Buhler twin-screw extruder BTSK 20/40D.
SEM structures of tested materials are shown on Figure 3 – Figure 5.
Form these images we can conclude, that while in the materials PA6/Cloisite 30A (A) and PA6/Cloisite 93A exfoliation took place, in the material with Cloisite NA + filler the clusters of particles and undigested filler is visible.
Papaspyrides, A review on polymer-layered silicate nanocomposite, Progress in Polymer Science, 33 (2008) 1119–1198, [5] Q.

Solution blending is an effective method to modify the properties of polymer materials.
Cellulose, the most abundant renewable polymer materials in nature, is regarded as a promising chemical material for possessing good biocompatibility, biodegradability and other excellent properties [8].
Experimental Materials and Agents.
Lee: Inernational Journal of Pharmaceutics, Vol.221 (2001) p.1 [4] A.
Hua: Science and Engineering Vol.20 (1) (2010), p.5 (In Chinese) [15] Q.