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Microstructure, Densification and Mechanical Properties of TiB2-TiC-NiAl Ceramic-Based Composite Weiguo Wang, Lei Zhang and Xiaoliang Zhang Science Research Department, Mechanical Engineering College, Shijiazhuang, China Wangweiguo2015@aliyun.com Keywords: TiB2-TiC composite; densification; microstructure homogeneity; composite additive Abstract.
Introduction Because of high melting temperatures, high degree of covalent bonding and low self-diffusion coefficients of TiB2 and TiC, the achievement of full-density TiB2-TiC composites requires long exposures at high sintering or hot-pressing temperatures, so high processing temperature adversely affects the microstructure due to grain growth and also lead to high cost of the materials.
Recently, Zhao et al [2] introduces combustion synthesis into high gravity field to induce thermal explosion reaction, successfully prepared near-full-density TiC-TiB2 composites with fine-grain even ultra-grain microstructures by liquid forming and rapid solidification, and the selection of the additives was considered to one of key factors affecting the microstructures and properties of solidified TiC-TiB2 composites.
Experimental Raw materials high-purity (>98%) B4C powder with particle size < 3.0 µm and high-purity (>99%) Ti powder with particle size < 30 µm were used to constitute the primary system as shown in Eq. 1, while Ni and Al powder with purity > 99% and particle size < 30 µm were used to constitute the composite additive, as shown in Eq. 2.
Because ambient hardness of the ceramic composite change linearly with elastic modulus of the materials, the dependence of the hardness of the ceramic composite on mass fraction of Ni-Al composite additive is considered to result from the corelation of the densification of the materials and Ni-Al composite additive.

Physical Modeling In this study, the raw materials used were tin (99.3ωt% Sn, 0.7ωt% Cu) and magnesia refractory mould (95.85ωt % MgO, 2.15ωt % Al2O3, 2ωt % Si).
The surface of the mould was covered with insulating material which slowed down the cooling rate, and the heat is dissipated through the mould and the heat insulating medium.
●The materials in each solid phase and liquid phase have isotropic and uniform.
Other thermal parameters used for calculation Material Sn Refractory mould Insulating material Density（g·cm-3） 7.28 2.97 0.17 Thermal conductivity（W·m-2·°C -1） 62.6 - 0.17 Heat capacity（J·kg-1·°C -1） - - 1371 The insulating material transfers heat to the surrounding air by a combination of thermal convection and radiation.
Proceedings of the 51st Conference on Glass Problems: Ceramic Engineering and Science Proceedings. 12(2008) 496-517

Clarke3 1 Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439; almer@aps.anl.gov 2 Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125 3 Materials Department, University of California, Santa Barbara, CA 93106 Abstract Synchrotron x-rays are used for in situ determination of oxide strain, during oxide formation on a Kanthal A1 FeCrAlZr substrate at 1160°C.
This has made FeCrAl based alloys a model material for studying stress generation during oxidation.
The formation of a thermally grown oxide is also important for thermal barrier coating (TBC) applications, in which zirconia coatings are applied to an alloy substrate, and a bond coat is used between the two materials.
Understanding the oxide formation and the stresses generated consequently are crucial to determining the lifetime of such material systems.
Metallurgical and Materials Transactions A, 2000. 31A: p. 2949-2962. 5.

Wang 3,f 1 Dept of Mechanical Engineering, Linköping University, S-58183 Linköping, Sweden 2 Studsvik Neutron Research Laboratory, Uppsala University, S-61182 Nyköping, Sweden 3 School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China 4 Sandvik Materials Technology, R&D, SFM, S-81181 Sandviken, Sweden a rulin@ikp.liu.se, bydwang@mail.neu.edu.cn, c guocai.chai@sandvik.com d jianan_ahead@126.com, e stejo@ikp.liu.se, f wanggang@mail.neu.edu.cn KEYWORDS: Duplex stainless steel, lattice strains, in-situ loading, neutron diffraction, grainorientation-dependent stresses, inter-phase stresses Abstract.
It has been well established that both elastic and plastic anisotropy in a polycrystalline material can contribute to a TD ND 40 o ψψψψ non-linear ε-sin2ψ distribution [4,5].
Material and experiment A super duplex stainless steel, SAF 2507 with nominal chemical composition (wt. %) of 25 Cr, 7 Ni, 4 Mo, 1.2 Mn, 0.8 Si and 0.3 N (remainder Fe) was used in this study.
The legend key gives the applied stress in compression and "u" refers to the unloading state.
Moverare and Manus Odén: Metallurgical and Materials Transactions Vol. 31A (1999), p. 1557 [2] A.

This is because different materials have different tolerance level on temperature rise.
Methodology Materials.
The packing material was stainless steel Flexipac 1Y (Koch-Glitsch) with packing height of 1.0 m.
[2] IEA, CO2 Capture and Storage: A key carbon abatement option, International Energy Agency, France, 2008
Bustam, Investigation on Factors Affecting Absorption Column Temperature Rise during CO2 Capture Process using Response Surface Methodology, presented in International Conference on Process Engineering and Advanced Materials (ICPEAM2012), Kuala Lumpur (2012)

Chen2,c 1Waikato Centre for Advanced Materials (WaiCAM), School of Engineering, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand 2School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China ad.zhang@waikato.ac.nz, bhongbaoy@yahoo.com.cn, cyychen@hit.edu.cn Key words: titanium aluminide, nanostructure, nanocrystalline, ultrafine structure, mechanical properties, fracture behaviour.
Introduction Among the materials processing/synthesis routes which can be scaled up to industrial scale typical for producing engineering materials and components, powder metallurgy route may be the only applicable route for producing nanostructured or ultrafine structured products in semi-finished forms (bars, billets, plates, sheets etc.) or near-net shaped component forms.
Severe plastic deformation of bulk materials using processes such as equal channel angular pressing/extrusion (ECAP/ECAE) can give ultrafine structure, but can rarely give nanostructure.
The premature fracture of the specimens during room temperature tensile testing prevented the measurement of the true yield strength of the materials.
Due to the large amount of plastic deformation involved, the further processing of TiAl based alloys produced by HEMM and HIP by forging, extrusion and rolling not only shape the materials to the forms required for the final products, but also improve metallurgical quality of the materials.

The electrical, materials, and device characteristics employed in this simulation had a significant impact on the device output performance.
Those references were chosen due to their compatibility with the solar cell components (layer, metallic, and back contact materials) [31–33].
Donatini, Geothermal Power, POWER ENGINEERING Advances and Challenges. (2019) 179–215
Uddin Farhad, Comparative Study on Solar Cell Simulators, ICIET 2019 - 2nd International Conference on Innovation in Engineering and Technology. (2019)
Tang, Toward charge extraction in all-inorganic perovskite solar cells by interfacial engineering, J Mater Chem A Mater. 6 (2018) 21999–22004

Study on Multi-track Wireless Communication and Laser Detection Device over the Line Shoucheng Ding1,2, a and Wenhui Li1,b 1College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou, Gansu, China 2Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou, Gansu, China aemail:dingsc@lut.cn, bemail:liwenhui789@sina.com.cn Keywords: Multi-track, starting signal, wireless communication, laser detection Abstract.
[3] Shoucheng Ding, Wenhui Li, Guici Yuan: The Non-destructive Measurement Instrument for Material Thickness, Key Engineering Materials, Vols. 480-481, pp 415-420, 2011
[7] Shoucheng Ding, Shizhou Yang, Wenhui Li, Guici Yuan：Construction of the 8051 SCM vehicle controller for security，International Conference on Transportation Engineering 2009，pp2969-2974

During the engineering feasibility study stage, the spillway structure includes surface orifices in the central portion of the dam and the spillway tunnel near the riverbank, which belongs to structure level 2.
The trajectory distance and the depth of the scour pit are the key parameters to be taken into account for designing the pattern of the trajectory bucket energy dissipation, and thus for checking up the safety of the spillway structure.
Granule and binder are the most important materials to simulate the erosion of the river bed and often used in the experiment, furthermore it should be cautious to choose the diameter of the bed load in the model to simulate the river deformation.
Experimental Report on Sanliping Hydroelectric Engineering 1/90 Integer Physical Models in Fang County of Hubei Province, Wuhan University Publications, Wuhan, China, 2006.
(In Chinese) [4] Hangen Ni, Qingguo Wang, Yucong Liu, The application of unusual flaring piers to enhance energy dissipation of overflow discharge, Journal of Hydraulic Engineering.

By means of the local material flow models of e.g.
For all materials a scatter of the relative errors in-between a range of ±5% was obtained.
New groove pass sequences and materials will be included in the data base in the future as well.
Spittel, Landolt-Börnstein, Group VIII Advanced Materials and Technologies Volume 2C, Part 1- Metal Forming Data of Ferrous Alloys, 2009, Part 2- Metal Forming Data of Lightweight Alloys, 2011, Part 3- Metal Forming Data of Heavy Metals, 2011
Kawalla, Extension of the Freiberger Model of Spread for the Calculation of Material Flow During Rolling of Long Products to a New Material Group of Mg alloys AZ31, AZ81, WE43, Key Engineering Materials, 716 (2016) 677-684.