scholarly journals Production and Characterization of Animal Waste Reinforced Composite Materials By Powder Metallurgy

2021 ◽  
Author(s):  
Assoc. Prof. Dr. Ahmet YONETKEN ◽  
Ayhan EROL ◽  
Gunnur Pesmen
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Boron Carbide ◽  
Structural Features ◽  
Industrial Applications ◽  
Sintering Process ◽  
Reinforced Composite ◽  
Powder Samples ◽  
Composite Production

Abstract Boron carbide is a product used for reinforcement in composite production and frequently used in the defense industry. The fact that boron carbide behaves similarly to the mechanical properties of bone and that titanium is strengthened with boron carbide, which is used as a biomaterial, causes it to be preferred among composite materials. It also makes it attractive to use in industrial applications at high temperatures. It is known that Fe-B4C composites are used together with Fe matrix materials to improve the properties of the group in addition to elements such as Cr, especially Ti, Co, Mo and Fe in various application areas. This makes it frequently used in the sintering process. In this study, 98,33%Fe-1,66%B4C, 96.66%Fe-1,66%B4C-1,66%eggshell powders, 95%Fe-1,66%B4C-3,32%eggshell powders, 93,33%Fe-1,66%B4C-5%eggshell powders and 91,66%Fe-1,66%B4C-6,66% eggshell powder samples were prepared using the compositions of. It is formed in a single axis press under 400bar pressure. When the mechanical and metallographic properties of the samples produced after sintering at 1400 ᵒC were examined, the effects of eggshell powders on composite samples produced by adding Fe-B4C composite and eggshell powders in different compositions were observed. 1,66% to 6,66% eggshell powders additive was used in the compositions and mechanical properties were determined in the produced samples. Structural features were tried to be determined by looking at metallographic analyses. The densities of the produced samples were calculated and their hardness and strength were determined. According to the analysis results, 3,33% Egshelters composition and 3,71 gr/cm3 density and 285,5 HV hardness values ​​at 1400 °C were obtained.

Effect of Nano Clay on Mechanical Behavior of Bamboo Fiber Reinforced Polyester Composites

2018 ◽  
Vol 877 ◽  
pp. 294-298 ◽  
Author(s):  
Kundan Patel ◽  
Jay Patel ◽  
Piyush Gohil ◽  
Vijaykumar Chaudhary
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Clay Content ◽  
Weight Fraction ◽  
Industrial Applications ◽  
Vital Role ◽  
Bamboo Fiber ◽  
Nano Clay ◽  
Different Types ◽  
Polyester Composite

Composite materials play a vital role in many industrial applications. Researchers are working on fabrication of new composite materials worldwide to enhance the applicability of these materials. The present study aimed to investigate the effect of Nano clay loading as filler on the mechanical properties of the bamboo fiber yarn reinforced polyester composite. Five different types of composite specimen were prepared with Nano clay loadings of 0 to 4 % weight fraction using hand lay-up technique. It was observed that the composite sheet with 1 wt % nano clay content exhibited the optimized tensile and flexural strength. However the mechanical properties tend to decrease with addition of nano clay content from 2 to 4 wt %. In spite of that the values of mechanical properties with 2 and 3 wt % nano clay content is higher than 0 wt % nano clay content.

Investigation of Mechanical Properties of Silk and Epoxy Composite Materials

2021 ◽  
Vol 889 ◽  
pp. 27-31
Author(s):  
Norie A. Akeel ◽  
Vinod Kumar ◽  
Omar S. Zaroog
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Composite Materials ◽  
Epoxy Composite ◽  
Mechanical Test ◽  
Weight Ratio ◽  
Industrial Applications ◽  
Sem Analysis ◽  
Equivalent Strength ◽  
Test Impact

This research Investigates the new composite materials are fabricated of two or more materials raised. The fibers material from the sources of natural recycled materials provides certain benefits above synthetic strengthening material given that very less cost, equivalent strength, less density, and the slightest discarded difficulties. In the current experiments, silk and fiber-reinforced epoxy composite material is fabricated and the mechanical properties for the composite materials are assessed. New composite materials samples with the dissimilar fiber weight ratio were made utilizing the compression Molding processes with the pressure of 150 pa at a temperature of 80 °C. All samples were exposed to the mechanical test like a tensile test, impact loading, flexural hardness, and microscopy. The performing results are the maximum stress is 33.4MPa, elastic modulus for the new composite material is 1380 MPa, and hardness value is 20.64 Hv for the material resistance to scratch, SEM analysis of the microstructure of new composite materials with different angles of layers that are more strength use in industrial applications.

Fabrication and Characterization of Alumina/Zirconia Ceramic Compound

2012 ◽  
Vol 724 ◽  
pp. 249-254 ◽  
Author(s):  
Bum Rae Cho ◽  
Ji Hoon Chae ◽  
Bo Lang Kim ◽  
Jong Bong Kang
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Low Temperature ◽  
Mechanical Strength ◽  
Sem Analysis ◽  
Zirconia Ceramic ◽  
Sintering Process ◽  
Sintering Aids ◽  
X Ray Diffraction

Sintered ZTA(zirconia toughened alumina) which has good mechanical properties at a low temperature was produced by milling and mixing with Al2O3 and ZrO2(3Y-TZP). In order to examine the effect of sintering aids on the mechanical properties of ZTA, fracture toughness and hardness of the produced ZTA were observed in accordance with change of the added quantity of ZrO2 Scanning electron microscopy and X-ray diffraction technique were applied to observe microstructural change and phase transformation during the process. Experimental results showed that the addition of sintering aids in ZTA at a low temperature induced densification and adding SiO2 and talc lowered sintering temperature and promoted crystallization process of the compound. The mechanical strength of ZTA added ZrO2 showed higher mechanical strength and SEM analysis revealed that Al2O3 and ZrO2 during the sintering process restrained the grain growth each other. Especially, the 92% Al2O3 added sintering aids showed more than 98% of the theoretical density and more than 1500 Hv of hardness value at a low temperature of 1400. It was also showed that the fracture toughness is gradually increasing first and decreasing later in accordance with the quantity of ZrO2.

Interface Effects on the Mechanical Properties of Nanocrystalline Nanolaminates

2009 ◽  
Vol 1224 ◽  
Author(s):  
Alan F. Jankowski
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Grain Size ◽  
Physical Vapor Deposition ◽  
Interfacial Area ◽  
Structural Features ◽  
Industrial Applications ◽  
Interfacial Structure ◽  
Average Width ◽  
Layer Spacing

AbstractNanocrystalline nanolaminate (ncnl) structures are widely used in the study of physical properties in order to engineer materials for a variety of industrial applications. Often, novel and interesting mechanical behaviours that are found in nanolaminate materials can be linked with two characteristic features of structure. These are the layer pair spacing and the grain size. For the case of nanolaminates synthesized by physical vapor deposition processes, the layer spacing corresponds with the repeating sequence of layer pairs and can be referred to as composition wavelength. The grain size is the average width of the tapered columnar structure along the growth direction. Since the mechanical properties of strength and hardness are known to functionally vary with the separation between dislocations in crystalline materials, both structural features can potentially contribute to the total interfacial area and the characteristic separation of interfaces that mitigate dislocation motion. In this investigation, the individual contribution of layer pair spacing and grain size to the total interfacial structure are each quantified in an assessment of strength and hardness. A model is proposed for the total interfacial area of the material volume under plastic deformation that can quantify the interfacial area contribution from the layer pairs and the grain size. It is anticipated that each structural feature can potentially dominate the plastic deformation of the nanolaminate as dependent upon the specific layer pair spacing, the grain size, and the extent of plastic deformation.

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