Microstructures and Properties of AlMgTi-Based Metal
AlMgTi-based metal–intermetallic laminated composites were successfully fabricated through an innovative dual-step vacuum hot pressing. First this study prepares the AlTi-based laminated composites by vacuum hot pressing at 650 °C. Then the researchers place the Mg-Al-1Zn (AZ31) magnesium alloy between the prepared AlTi-based laminated composites at 430 degC for hot
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Influence of B4C SiC and Si3N4 Additions on
The paper presents the results of the High Pressure and High Temperature (HP-HT) sintering and investigation of Ultra High Temperature Ceramics (UHTC) composites of titanium nitride matrix. The aim of this studies were to determine the influence of additives on the ceramic phase composition microstructure and selected properties. Three different kind of mixtures were prepared. 8 to 22 wt B4C
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Processing of reaction-bonded B4C–SiC composites in a
4C based materials. Most of them concern the multi-mode microwave processing of Si 3N 4 based material 12 13 or the microwaves joining of composites 14 addition it is well established that semiconductors such as silicon silicon/boron carbides couple very strongly with microwaves especially with H field 11 15–17 . Therefore
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Microstructures and Mechanical Properties of B4C-TiB2
B4C-TiB2 composite was prepared using hot pressure sintering. The microstructures and mechanical properties of the B4C-TiB2 composite were investigated. The B4C-TiB2 composite with 43 mass TiB2 showed the optimized properties. The relative density hardness flexural strength and fracture toughness of that were 98.2 25.9 GPa 458 MPa and 8.7 MPa•m1/2 respectively.
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Properties of B4C-Based Composite with Layered Structure
A three-layer material based on B4C/Al B4C/TiB2 and B4C composites had been successfully prepared. The microstructures and properties of B4C/Al-B4C/TiB2-B4C composite were investigated in detail. The three-layer porous preform was first prepared by hot pressing. Then the three-layer composite was fabricated by infiltrating aluminum into the porous preform in vacuum.
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Mechanical Behavior of AA7475-B4C CompositesIJERT
The ultimate tensile strength of AA7475- B4C composite material increases as compared to the cast base AA7475 alloy. The microstructure and properties of hard ceramic B4C particulates control the deformation of the. 140. 130. 120. 0 2 4 6 8 10. Wt. of B4C Particulates. composites.
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Microstructures and Mechanical Properties of B4C-TiB2
B4C-TiB2 composite was prepared using hot pressure sintering. The microstructures and mechanical properties of the B4C-TiB2 composite were investigated. The B4C-TiB2 composite with 43 mass TiB2 showed the optimized properties. The relative density hardness flexural strength and fracture toughness of that were 98.2 25.9 GPa 458 MPa and 8.7 MPa•m1/2 respectively.
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Effects of two‐dimensional programming on microstructures
To evaluate the effects of two‐dimensional (2D) programming on thermal properties of shape memory polymer (SMP)‐based composites when exposed to high temperature the specimens of composites were prepared and programmed. Then the morphology thermal properties dynamic evolution and constituents of released gaseous products were characterized.
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Structure and Properties of B4CSiC Composites Request PDF
Among B 4 C-based composite ceramics it has been observed that B 4 C-SiC composite ceramics showed better mechanical properties and oxidation resistance as
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Boron carbideWikipedia
Boron carbide (chemical formula approximately B 4 C) is an extremely hard boron–carbon ceramic and covalent material used in tank armor bulletproof vests engine sabotage powders as well as numerous industrial applications. With a Vickers hardness of >30 GPa it is one of the hardest known materials behind cubic boron nitride and diamond.
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Microstructures and Properties of AlMgTi-Based Metal
AlMgTi-based metal–intermetallic laminated composites were successfully fabricated through an innovative dual-step vacuum hot pressing. First this study prepares the AlTi-based laminated composites by vacuum hot pressing at 650 °C. Then the researchers place the Mg-Al-1Zn (AZ31) magnesium alloy between the prepared AlTi-based laminated composites at 430 degC for hot
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Mechanical characterization of B4C reinforced aluminum
Boron carbide (B 4 C) ceramic particles were used as reinforcement material to produce aluminum (Al) matrix composites by squeeze casting method. Four different B 4 C contents as 0 3 5 and 10 wt and three different squeeze pressures as 0 75 and 150 MPa were used in which the samples consisted of pure Al without B 4 C and the samples obtained without applying pressure were used as
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High-Performance Metal/Carbide Composites with Far-From
Oct 18 2016 · Al alloy/Ti2AlC composites with controlled microstructures various volume ratios of constituents (40/60 and 27/73) and metallic phase sizes (42–83
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Microstructure and mechanical properties of B4C reinforced
Flow properties of aluminum and aluminum-boron carbide (Al-B4C) composites containing 5 10 and 15 wt B4C were investigated by compression tests at strain rates of 10(-4) 10(-3) and 10(-2) s
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Mechanical and electrical properties of B4C–CrB2 ceramics
Abstract B 4 C based ceramic composites with additions of CrB 2 up to 25 mol were fabricated by hot pressing at 2050 °C with a low applied load of 5 MPa. The CrB 2 addition enhanced the densification of B 4 C due to the formation of CrB 2 –B 4 C eutectic liquid. Both a high strength of 684 MPa and a modest fracture toughness of 3.2 MPa m 1/2 were obtained for the B 4 C– 22.5 mol CrB 2
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Microstructure and abrasive wear behaviour of B4C particle
Abstract. In this study the microstructure and abrasive wear properties of varying volume fraction of particles up to 12 B 4 C particle reinforced 2014 aluminium alloy metal matrix composites produced by stircasting method was investigated. The density porosity and hardness of composites
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Microstructures and Properties of AlMgTi-Based Metal
AlMgTi-based metal–intermetallic laminated composites were successfully fabricated through an innovative dual-step vacuum hot pressing. First this study prepares the AlTi-based laminated composites by vacuum hot pressing at 650 °C. Then the researchers place the Mg-Al-1Zn (AZ31) magnesium alloy between the prepared AlTi-based laminated composites at 430 degC for hot
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Investigation of mechanical properties of B4C/SiC/Al2O3
Jul 05 2019 · Bodukuria et al 21 in their study Hybrid metal matrix composites is made by powder metallurgy route the compositions chosen is 90 Al 3 SiC P 7 B 4 C. Hardness and microstructure studies have been performed on prepared aluminum matrix composite.
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Boron carbideWikipedia
Boron carbide (chemical formula approximately B 4 C) is an extremely hard boron–carbon ceramic and covalent material used in tank armor bulletproof vests engine sabotage powders as well as numerous industrial applications. With a Vickers hardness of >30 GPa it is one of the hardest known materials behind cubic boron nitride and diamond.
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PRODUCTION TECHNOLOGY ELABORATION AND
CHARACTERIZATION OF Al-MWCNT Al-fullerenes and Al-B4C COMPOSITES Kommel L. Metsvahi R. Mihhaltsenkov M. Abstract The effects of production technology parameters on the microstructure and mechanical properties of aluminium based composites filled with CNT B4C and fullerenes was studied in this work. Aluminium with different content
Get PriceMechanical Behavior of AA7475-B4C CompositesIJERT
The ultimate tensile strength of AA7475- B4C composite material increases as compared to the cast base AA7475 alloy. The microstructure and properties of hard ceramic B4C particulates control the deformation of the. 140. 130. 120. 0 2 4 6 8 10. Wt. of B4C Particulates. composites.
Get Price
Properties of B4C-Based Composite with Layered Structure
A three-layer material based on B4C/Al B4C/TiB2 and B4C composites had been successfully prepared. The microstructures and properties of B4C/Al-B4C/TiB2-B4C composite were investigated in detail. The three-layer porous preform was first prepared by hot pressing. Then the three-layer composite was fabricated by infiltrating aluminum into the porous preform in vacuum.
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Microstructure and mechanical properties of hot-pressed
Jan 01 2002 · In this paper B 4 C-based ceramic composites with different content of solid-solution (W Ti)C were produced using hot pressing techniques. The mechanical properties and the microstructure of this composite have been studied. Particular attention was paid to the effect of (W Ti)C additions on the mechanical properties and microstructure. 2.
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Microstructures and mechanical properties of thermoplastic
Polymer Composites is the engineering and scientific journal serving the fields of reinforced plastics and polymer composites including research production processing and applications. Polyarylate (PAR) fiber‐reinforced nylon6 composites are manufactured by molding uniaxially‐aligned islands‐in‐sea fibers at different temperature
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An Experimental Investigation on Mechanical and Wear
The effect of SiC particle size (25 50 and 75 μm) and particulate content (5 10 and 15 wt ) on the microstructural mechanical properties and wear rate of the composites was studied and the results were analyzed for varied conditions of reinforcement. Scanning electron microscope (SEM) examinations were used to assess the dispersion of
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