Near Net Shape Spray Forming—Metals

2000 ◽  
Author(s):  
T. McKechnie
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Composite Materials ◽  
Thermal Spray ◽  
Thermal Protection ◽  
Spray Forming ◽  
Parent Material ◽  
Electrical Isolation ◽  
Near Net Shape ◽  
Manufacturing Techniques

Abstract Near net shape spray forming technologies have matured into viable manufacturing techniques. Spray forming can be accomplished with many different thermal spray technologies yielding a range of materials with different properties. Monolithic materials, composite materials, and multi-layer materials have all been made. Mechanical properties comparable to cast versions of the parent material are achievable for some materials and processes. Tailored properties can also be achieved for such characteristics as high hermeticity, thermal protection, electrical isolation, wear resistance, etc. A review of materials and properties is presented.

scholarly journals Analysis Of Mechanical Properties And Free Vibration Response Of Composite Laminates

2011 ◽  
pp. 84-88
Author(s):  
M. Prabhakaran ◽  
C. Sivakandhan
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Composite Material ◽  
Composite Materials ◽  
Free Vibration ◽  
Composite Laminates ◽  
Mechanical Characteristics ◽  
Energy Planning ◽  
The Individual ◽  
Free Vibration Response

The Word composite consisting of two or more distinct materials, having two or more distinct phases with different physical properties are noticeable different from the constituent properties. Of all composite materials the fabric type has evoked the most interest among embedded in matrix materials to form laminated composites. These have been used for centuries and today industrial innovation improved energy planning. Uncertain availability and ever increasing cost have created a greater interest in composites. The engineering importance of a composite material is that two or more distinctly different materials with dissimilar characteristics combine together to form a composite that is either superior or important in some other manner to the properties of the individual materials. Most of the composites have been created to improve combinational of mechanical characteristics such stiffness, wear resistance and mechanical properties.

Consolidation and Mechanical Properties of Near-Net-Shape Al-21 wt.% Si Component Fabricated by Plasma Spray Forming

2007 ◽  
Vol 119 ◽  
pp. 183-186 ◽  
Author(s):  
Soon Jik Hong ◽  
S. Patil ◽  
Chang Kyu Rhee ◽  
S. Seal
Keyword(s):  
Mechanical Properties ◽  
Plasma Spray ◽  
Room Temperature ◽  
Spray Forming ◽  
Homogeneous Distribution ◽  
Cast Material ◽  
Plasma Spray Forming ◽  
Fine Microstructure ◽  
Near Net Shape ◽  
Increased Strength

The microstructure and mechanical properties of Al-21 wt% Si components fabricated by plasma spray forming are analyzed. The microstructure of the plasma spry formed component showed a homogeneous distribution of fine Si particles embedded in the Al matrix. The grain size of α-Al varied between 200 to 500 nm and the size of the Si particles was about 50 to 100 nm in the plasma spray formed component. The room temperature tensile strength of the plasma spray formed component was 215 MPa with 0.5 % elongation, while for cast material, it was 130 MPa. Despite the porosities, the ultra-fine microstructure and homogeneous distribution of Si particles embedded in matrix are the foundation of the increased strength of the plasma spry formed component.

Performance Research of PUE/Modified Nanosilicon Carbide / Carbon Nanofibers

2013 ◽  
Vol 772 ◽  
pp. 376-379
Author(s):  
Qing Zhen Wen ◽  
Qing Cheng ◽  
Jin Hua Zhu
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Composite Materials ◽  
Propylene Glycol ◽  
Carbon Nanofibers ◽  
Polyurethane Elastomers ◽  
Comprehensive Properties ◽  
Dispersion Degree ◽  
Poly Propylene ◽  
Performance Research

The KH-550 was modified by KH-560, and a new surfactant was got, which was used to modify nanosilicon carbide. Series of modified polyurethane elastomers (PUE) were prepared with 2,4-toluene diisosocyanate (TDI), poly (propylene glycol)(PPG-2000), modified nanosilicon carbide, carbon nanofibers and 3,3'-4,4'-dianino-diphenymethane (MOCA). The influence of different amount of filler on the mechanical properties, wear resistance of composite materials was investigated. The dispersion degree of nanofiller in matrix was analysised by SEM. The results showed that the comprehensive properties of composite had been greatly improved.

scholarly journals Mechanical and Tribological Properties of Polytetrafluoroethylene Composites with Carbon Fiber and Layered Silicate Fillers

Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 224 ◽  
Author(s):  
Andrey P. Vasilev ◽  
Tatyana S. Struchkova ◽  
Leonid A. Nikiforov ◽  
Aitalina A. Okhlopkova ◽  
Petr N. Grakovich ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Compressive Strength ◽  
Composite Materials ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Layered Silicate ◽  
Layered Silicates ◽  
Filler Materials ◽  
Mechanical And Tribological Properties

Mixtures of layered silicates (vermiculite and kaolinite) and carbon fibers were investigated as filler materials for polytetrafluoroethylene. The supramolecular structure and the tribological and mechanical properties of the resulting polymer composite materials were evaluated. The yield strength and compressive strength of the polymer increased by 55% and 60%, respectively, when a mixed filler was used, which was attributed to supramolecular reinforcement of the composites. In addition, the wear resistance increased by 850 times when using vermiculite/kaolinite fillers, which was due to protection of the surface by the formation of hard tribofilms.

scholarly journals Processing Parameters Influence on Wear Resistance Behaviour of Friction Stir Processed Al-TiC Composites

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
E. T. Akinlabi ◽  
R. M. Mahamood ◽  
S. A. Akinlabi ◽  
E. Ogunmuyiwa
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Microstructural Characterization ◽  
Surface Characteristics ◽  
Processing Parameters ◽  
Vital Role ◽  
Parent Material ◽  
Practical Applications ◽  
Friction Stir ◽  
Resistance Property

Friction stir processing (FSP) being a novel process is employed for the improvement of the mechanical properties of a material and the production of surface layer composites. The vital role of the integrity of surface characteristics in the mechanical properties of materials has made the research studies into surface modification important in order to improve the performance in practical applications. This study investigates the effect of processing parameters on the wear resistance behavior of friction stir processed Al-TiC composites. This was achieved through microstructural characterization by using both the optical and scanning electron microscope (SEM), microhardness profiling, and tribological characterization by means of the wear. The microhardness profiling of the processed samples revealed an increased hardness value, which was a function of the TiC particles incorporated when compared to the parent material. The wear resistance property was also found to increase as a result of the TiC powder addition. The right combination of processing parameters was found to improve the wear resistance property of the composites produced.

scholarly journals Fire Behavior of Wood-Based Composite Materials

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4352
Author(s):  
Juliana Sally Renner ◽  
Rhoda Afriyie Mensah ◽  
Lin Jiang ◽  
Qiang Xu ◽  
Oisik Das ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Flame Retardancy ◽  
Flame Retardants ◽  
Wood Fiber ◽  
Fire Behavior ◽  
Manufacturing Techniques ◽  
Materials Used ◽  
Fire Properties ◽  
Wood Based Composite

Wood-based composites such as wood plastic composites (WPC) are emerging as a sustainable and excellent performance materials consisting of wood reinforced with polymer matrix with a variety of applications in construction industries. In this context, wood-based composite materials used in construction industries have witnessed a vigorous growth, leading to a great production activity. However, the main setbacks are their high flammability during fires. To address this issue, flame retardants are utilized to improve the performance of fire properties as well as the flame retardancy of WPC material. In this review, flame retardants employed during manufacturing process with their mechanical properties designed to achieve an enhanced flame retardancy were examined. The addition of flame retardants and manufacturing techniques applied were found to be an optimum condition to improve fire resistance and mechanical properties. The review focuses on the manufacturing techniques, applications, mechanical properties and flammability studies of wood fiber/flour polymer/plastics composites materials. Various flame retardant of WPCs and summary of future prospects were also highlighted.

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