Search results

Introduction Aluminum-lithium alloy is a kind of new structural materials of low-density and high-performance.
Experimental procedures materials.
The rolled 2A97T3 Al-Li alloy plates delivered by AVIC Beijing institute of aeronautical materials in 200mm×200mm×1.2mm were used.
[6]WANG Zhixiu, ZHENG Ziqiao, LI Hai,submitted to Materials Review(2003)
[8]CUI Li,LI Xiaoyan,HE Dingyong,CHEN Li,GONG Shuili,submitted to Journal of Materials Engineering(2012).

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Measurement Method of Carbon Char Content from Industry Sludge Hyung-Sun Kim* and Jae-Myung Kim Department of Materials Science and Metallurgical Engineering, Sunchon National University, Sunchon, 540-742, Korea, hskim@sunchon.ac.kr Keywords: Char, X-ray Diffraction, Demineralization, Coal Abstract.
Regarding the quantification of char during the processes, if a reaction is concerned with polymer materials like the former case, the pyrolysis of scrap tires, it is easy to deal with materials of low firing temperature enough to burn out.
Therefore, it is necessary to find out a solution for the separation of char from other materials and the quantitative measurement of char in their mixture with coke and others.
With increasing heat treatment of materials, the fixed carbon content of them increased coal, char and coke, in the order.
For the improvement of reliability on char content using this method, there are some points to be considered: 1) Powder size and distribution: Classification of raw materials needs.

This kind of material exhibits enhanced mechanical and several functional properties as compared to conventional coarse-grained materials [8-10].
Shape memory materials.
Advanced structural and functional materials.
Prokofiev: Ultrafine Grained Materials IV (TMS – 2006): 301
Lammering, Journal of the Mechanics and Physics of Solids, Vol. 52, (2004): 1549

Blickwedel and Kovacevic [9] confirmed this result for cutting different materials by injection-abrasive waterjet.
Conventional machining approaches might not always be suitable as they demand dedicated tooling to generate 3D features in such difficult-to-cut materials.
AWJ is a well utilized approach for machining Al2O3 ceramics at high material removal rate with the balance between the materials removal rate (MRR) and the level of near-surface damage.
Wang: Abrasive Waterjet Machining of Engineering Materials (Trans Tech Publications, Switzerland, 2003) [4] D.S.Srinivasu, D.A.Axinte, P.H.Shipway, et al: Int.
Babu: International Journal of Machining and Machinability of Materials Vol. 3(2008), p. 120 [7] Bostjan Jurisevic, Daniel Brissaud, Mihael Junkar: Int.

Introduction With the rapidly development of economy and the improvement of people’s living standards, a large number of new-type decorative building materials have come into families.
Materials and methods The questionnaire survey was carried out in 2012 on 150 children in a primary school in Chaoyang District of Beijing.
These materials will definitely distribute harmful substances [4] that pose a threat to human health.
Decoration materials and smoking indoors also have a certain effect on children’s respiratory system health.
Shui: Home Indoor Environment Protection, Science Press, Beijing, China (2011)

The soil that particle diameter is greater than 0.075mm and the mass ratio is more than 50% is defined as coarse-grained soil by the corps of engineers, bureau of reclamation and society for testing materials [1].
With the improvement of design ability, construction technology and material test level in water resources and hydropower engineering, the limitation to dam materials have more breakthroughs and relaxation.
Under the condition of fine content P5≧30%, when the fines content P5 increases, the pore between the coarse material is filled with fine material, even some of the coarse material is distracted by fine material.
Under the condition of fine content P5≧30%, when the fines content P5 increases, the pore between the coarse material is filled with fine material, even some of the coarse material is distracted by fine material.
Journal of Water Resources and Hydropower Technology.(1976), p.53-57.

Gibson summarized the use of the modal vibration response measurements to characterise the mechanical properties of fibre reinforced composite materials and structures [2,3] and also affirmed that modal testing by impulse excitation method is a fast and accurate approach to characterise the global elastic constants of composite material.
Fibre reinforced composites, materials and manufacturing and Design, CRC Press, Taylor & Francis Group
Gibson, Elastic Constants of orthotropic composite materials using plate resonance frequencies, classical lamination theory and an optimized three mode Rayleigh formulation, Compos Engg 3 (1993) 395-407
Gibson, Modal vibration response measurements for characterization of composite materials and structures.
Wu, Elastic constants of composite materials by an inverse determination method based on a hybrid Genetic Algorithm, Journal of Mechanics, 26 (2010) 345-353 [7] Leonardo Pagnotta, Giamtattiete Stiglino, Elastic characterization of isotropic plates of any shape via dynamic tests: Theoretical aspects and numerical simulations, Mecha Res com 35 (2008) 351-360 [8] R.

Materials and methods.
id=10.1371/journal.pmed [2] Guidelines for Drinking water Quality: Recommendations. – Third Edition Incorporating the First and Second Addenda. – Geneve: WHO, 2010. – Vol.1
Modern problems of protection of water bodies from chemical pollution, Vestnik of Academy of medical Sciences, 1 (2013), 38-43
Potable water quality in the reservoir Karachunyvskyi, Austrian Journal of Techncal and Natural Sciences, 1 (2014), 40-45
Water quality in the reservoir Karachunivskyi as a basic source of water supply in Kryvyi Rig city, International Scientific Medical Journal MEDICUS, 2 (2015),15-17.

Science Rise. 2 (22) (2016) 11–14
International Scientific Journal “Intenauka”. 5/5799 (2020)
International Scientific Journal “Intenauka”. (2020) 5/5798
Klasyfikatsiia [Fire and explosion hazard of substances and materials, Nomenclature of indicators and methods of their determination.
Eastern-European Journal of Enterprise Technologies. 1/10(109)(2021) 45–52.

Combined with the application of these two enhanced methods, the cutting of such materials has a very obvious effect on the improvement of surface roughness, the reduction of cutting force and the extension of tool life.
Laser-assisted machining (LAM) is a kind of thermally assisted machining, in which the material is preheated by a laser spot prior to the workpiece material removal, and the material is subsequently removed plastically by a cutting-tool as shown in Fig. 2.
LAM has been well known as a noncontact machining method and has been applied to various difficult-to-cut materials such as hardened and brittle material, i.e., titanium alloys, super-alloys, structural ceramics, etc.
Joshi, 2012, Analysis of machined surface quality in a single-pass of ball-end milling on Inconel 718, Journal of Manufacturing Processes, Vol.14, pp.257-268
Silberschmidt, 2006, Analysis of material response to ultrasonic vibration loading in turning Inconel 718, Materials Science and Engineering A, Vol.424, pp.318-325