A powder metallurgy approach for the production of a MgH2–Al composite material

2009 ◽  
Vol 478 (1-2) ◽  
pp. 273-280 ◽  
Author(s):  
Alexander Glage ◽  
Riccardo Ceccato ◽  
Ivan Lonardelli ◽  
Fabrizio Girardi ◽  
Filippo Agresti ◽  
...  
Keyword(s):  
Composite Material ◽  
Powder Metallurgy ◽  
Al Composite ◽  
Powder Metallurgy Approach

Warm Compaction and Characterization of Paniculate Reinforced CSP/Al Composite Material

2013 ◽  
Vol 423-426 ◽  
pp. 43-48
Author(s):  
Hong Zhang ◽  
Wei Hua ◽  
Qing Ding Wu
Keyword(s):  
Composite Material ◽  
Powder Metallurgy ◽  
Base Material ◽  
Modulus Of Rupture ◽  
Sliding Bearings ◽  
Warm Compaction ◽  
Forming Technology ◽  
Al Composite ◽  
Sintered Bronze ◽  
Material Forming

By applying new warm compaction forming technology of wood power developed through material forming theories in some interdisciplines such as applied science of wood and powder metallurgy, cotton stalk powder (CSP) was used as base material to prepare CSP/Al composite material of which the modulus of rupture and internal bond strength could be up to 83.95MPa and 6.82MPa respectively, wear resistance was 0.05g/100r and water absorption 0.65%. The sliding bearings made of the composite materials had a crushing strength and an apparent hardness up to 91.22MPa and HB51.1 separately. They are expected to replace sintered bronze of powder metallurgy in producing sliding bearings for light textile machinery so as to reduce the usage of nonferrous metal. The application of CSP/Al composite material explores a new way to use wood residuum in agriculture and forestry and ensure its high quality and cleanness.

The microstructure of a TiB2/Ti-47 Al composite material

1989 ◽  
Vol 47 ◽  
pp. 674-675
Author(s):  
O. Popoola ◽  
A.H. Heuer ◽  
P. Pirouz
Keyword(s):  
Composite Material ◽  
Ion Beam ◽  
Chemical Properties ◽  
Intermetallic Alloys ◽  
Transmission Electron ◽  
Diamond Polishing ◽  
Al Composite ◽  
The Matrix ◽  
Argon Ion ◽  
And Chemical Properties

The addition of fibres or particles (TiB2, SiC etc.) into TiAl intermetallic alloys could increase their toughness without compromising their good high temperature mechanical and chemical properties. This paper briefly discribes the microstructure developed by a TiAl/TiB2 composite material fabricated with the XD™ process and forged at 960°C.The specimens for transmission electron microscopy (TEM) were prepared in the usual way (i.e. diamond polishing and argon ion beam thinning) and examined on a JEOL 4000EX for microstucture and on a Philips 400T equipped with a SiLi detector for microanalyses.The matrix was predominantly γ (TiAl with L10 structure) and α2(TisAl with DO 19 structure) phases with various morphologies shown in figure 1.

scholarly journals OBTENTION OF WCuNi COMPOSITE MATERIAL USING POWDER METALLURGY FOR GAMMA (?) RADIATION ATTENUATION

2017 ◽  
Author(s):  
F. C. Cione ◽  
A. C. Souza ◽  
F. F. Sene ◽  
M. P. Gomes ◽  
E. P. Soares ◽  
...  
Keyword(s):  
Composite Material ◽  
Powder Metallurgy ◽  
Gamma Radiation ◽  
Radiation Attenuation

Effect of Processing Parameters on Mechanical Properties of Al7175/Boron Carbide (B4C) Composite Fabricated by Powder Metallurgy Techniques

2021 ◽  
Vol 105 ◽  
pp. 8-16
Author(s):  
Guttikonda Manohar ◽  
Krishna Murari Pandey ◽  
Saikat Ranjan Maity
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Powder Metallurgy ◽  
Sintering Temperature ◽  
Processing Parameters ◽  
Matrix Composites ◽  
Composite Powders ◽  
Porosity Level ◽  
Milling Operations ◽  
Boron Carbide B4c

Metal matrix composites attain a significant position in Industrial, defense, structural and automobile applications. To amplify that strategy there is a need to find out the conditional behavior of the composites and enhancing the properties will be mandatory. The present work mainly investigates on the effect of processing parameters like densification rates, sintering temperature, reinforcement content on the microstructure, mechanical properties of the Al7175/B4C composite material fabricated by mechanical milling and powder metallurgy techniques. Results show there is a grain size reduction and refinement in the composite material through ball milling operations and along with that increasing B4C content in the composite powders make milling conditions very effective. Increasing the sintering temperature results in a consistent grain growth along with that porosity level decreases up to a limit and then attain a steady state, the strength of the composites increases with compaction pressures but reinforcements content effects the strength of the material by losing its ductility making it brittle.

Effect of wood flour and naphthenic oil on morphology, rheological and mechanical properties of EPDM/PP/AL composite

2019 ◽  
Vol 34 (1) ◽  
pp. 153-163
Author(s):  
Rui Gou ◽  
Minghui Guo
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Raw Materials ◽  
Wood Flour ◽  
Core Layer ◽  
Thermoplastic Elastomer ◽  
Reactive Blending ◽  
Dynamic Vulcanization ◽  
Al Composite ◽  
Wide Range

Abstract Thermoplastic elastomer (TPE), made from ethylene propylene diene monomer (EPDM) and polypropylene (PP) base on reactive blending, has an excellent processing performance and characteristics and a wide range of applications. In this paper, EPDM, PP and ammonium lignosulfonate (AL) were selected as raw materials, wood flour (WF) of poplar tree was used as filler, naphthenic oil was used as plasticizer, DCP vulcanization system with dynamic vulcanization was carried, to make a new kind of composite material. This research studied the influences of wood flour and naphthenic oil content on the microstructure, mechanical properties and rheological properties of the composite material. The result showed: the content of wood flour and naphthenic oil has big impact on composite material. With the increase of the wood flour content, the mechanical properties are increased firstly and then decreased. The viscosity and modulus of the composite is improved with the increase of wood flour. With of the increase of the amount of naphthenic oil, the mechanical properties, viscosity and modulus of the composites decreased. When the content of wood flour is between 30–60 parts and the content of naphthenic oil is less than 20, the EPDM/PP/AL composite is suitable for using as the core layer elastic material of composite floor.

Production of Metallic Foams Having Open Porosity Using a Powder Metallurgy Approach

2004 ◽  
Vol 19 (5) ◽  
pp. 793-811 ◽  
Author(s):  
Maxime Gauthier ◽  
Louis-Philippe Lefebvre ◽  
Yannig Thomas ◽  
Martin N. Bureau
Keyword(s):  
Powder Metallurgy ◽  
Open Porosity ◽  
Metallic Foams ◽  
Powder Metallurgy Approach

Bulk Transition Elements Based Materials for Magnetic Cooling Application

2011 ◽  
Vol 170 ◽  
pp. 248-252 ◽  
Author(s):  
Mohamed Balli ◽  
Osmann Sari ◽  
L. Zamni ◽  
A. Robert ◽  
J. Forchelet ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Composite Material ◽  
Powder Metallurgy ◽  
Magnetocaloric Effect ◽  
Temperature Change ◽  
Room Temperature ◽  
Test Bench ◽  
Transition Elements ◽  
Magnetic Systems ◽  
Magnetic Cooling

In this paper we investigate the performances of two bulk magnetocaloric refrigerants based on La(Fe,Co)13-xSix and prepared by powder metallurgy. Both materials were developed especially for a magnetic cooling machine. We have determined the magnetocaloric effect in term of temperature change under magnetic field using a test-bench with practical running conditions. ΔT was measured under 2 T and close to room temperature range. The obtained results will be compared with those of some reference materials reported in the literature. In addition, a composite material based on La(Fe,Co)13-xSix is proposed for magnetic systems using Ericsson and AMR cycles for refrigeration close to room temperature.

Relaxation Processes in Ti-Al Composite Material after Rolling

2018 ◽  
Vol 284 ◽  
pp. 392-396
Author(s):  
D.N. Gurulev ◽  
L.V. Palatkina
Keyword(s):  
Plastic Deformation ◽  
Composite Material ◽  
Metal Forming ◽  
Body Shape ◽  
Applied Load ◽  
Relaxation Processes ◽  
Return To Equilibrium ◽  
Subtle Change ◽  
Al Composite ◽  
Flow Of Time

In the result of application of the load in different sections of the structure elastic or plastic deformation may occur. In its turn, the removal of the applied load can lead to the development of relaxation processes, caused by the intention of the material to return to equilibrium. There is a subtle change of body shape (warping), which depends on its properties, the type of deformation and its nature in the flow of time. In this regard, the consideration of this factor is necessary in the manufacture of various parts and components of LCM using the methods of metal forming (stamping, bending, calibration, etc.) [1-6].

Characterization of a powder metallurgy SiC/Cu–Al composite

2008 ◽  
Vol 197 (1-3) ◽  
pp. 43-48 ◽  
Author(s):  
Hailong Wang ◽  
Rui Zhang ◽  
Xing Hu ◽  
Chang-An Wang ◽  
Yong Huang
Keyword(s):  
Powder Metallurgy ◽  
Al Composite
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