A Comparative study on mechanical properties of Al-SiO2 composites fabricated using rice husk silica in crystalline and amorphous form as reinforcement

Pattnayak, Abhijit; Madhu, N.; Panda, Aum Sagar; Sahoo, Manoranjan; Mohanta, Kalyani

doi:10.1016/j.matpr.2017.11.507

Cited by 22 publications

(13 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, there is still a need for a simpler and more economic approach to the synthesis of silicon carbide (SiC) from rice husk and using it to reinforce alumina to produce a low cost high performance alumina matrix -SiC *email: talweendo@unam.na reinforced composite and comparing the results to other work that utilized SiC from other sources. The use of rice husk ash in metal matrix composites has been reported [17][18][19] . However, reports on the reinforcement of alumina with SiC from rice husk have not been found or perhaps not officially published.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and Mechanical Properties of Alumina (Al2O3) Matrix Composites Reinforced with SiC from Rice Husk by Spark Plasma Sintering

et al. 2020

View full text Add to dashboard Cite

Alumina (Al 2 O 3) suffers from low fracture toughness and low bending strength which restrict its application in the industry for some advanced components. The incorporation of submicron SiC into Al 2 O 3 matrix improves mechanical properties of the matrix. However, the high cost of SiC has delayed the industrial interest of synthesizing Al 2 O 3-SiC composites. Rice husk, an agricultural waste material, is a potential source of low-cost SiC. Therefore, this study presents a simple approach to synthesizing SiC from locally sourced rice husk and using it to reinforce alumina. Rice husk was pyrolysed in a tube furnace under argon atmosphere at different temperatures (1000 °C-1500 °C) and reaction times (60-120 min). Furthermore, Alumina powder was admixed with 5-20 vol% SiC derived from rice husk, and then sintered at temperatures between 1300 °C-1600 °C by spark plasma sintering. Maximum yield of SiC was obtained from rice husk at 1500 °C and 120 min. Materials with theoretical densities higher than 95% were achieved for the sintered composites. The hardness of sintered composites reached a maximum of 20.2±1.4 GPa, while a maximum of 4.7±.7 MPa.m 0.5 was obtained for the fracture toughness.

show abstract

Section: Introductionmentioning

confidence: 99%

Microstructural and Mechanical Properties of Alumina (Al2O3) Matrix Composites Reinforced with SiC from Rice Husk by Spark Plasma Sintering

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The XRD analysis results show that sea sand mainly contains SiO 2 and Fe 3 O 4 ; the XRD patterns are shown in Figure 5 . The presence of SiO 2 and Fe 3 O 4 ceramic compounds allows sea sand to form composites with superior properties [ 30 , 31 , 32 ]. This is because the presence of SiO 2 and Fe 3 O 4 ceramic compounds increase the mechanical and physical properties of the composites.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of AA6061-sea sand composite and analysis of its properties

Akbar

Surojo

Ariawan

et al. 2021

Heliyon

View full text Add to dashboard Cite

Aluminium matrix composites (AMCs) are widely used in various applications because of their excellent properties; however, their lightweightness limits their broad application scope. Various ceramic compounds are used as reinforcements in AMCs, such as Al 2 O 3 , SiC, ZrO 2 , and TiO 2 . However, the use of ceramic compounds results in high production costs in AMC manufacturing. Thus, the substitution of reinforcement particles with various organic and industrial waste reinforcements is required. In line with the research trend of using industrial waste materials such as rice husk ash, red mud, and fly ash, this study uses sea sand as an AMC reinforcement. Sea sand is used because it primarily contains SiO 2 and Fe 3 O 4 ceramic compounds and, thus, can be used as a reinforcement. This study aims to determine the physical and mechanical properties of an AA6061–sea sand composite. Sea sand was subjected to electroless coating to increase its wettability before the stir-casting process. The as-prepared composite was manufactured by the stir-casting method upon the addition of 2–6 wt% sea sand. Composite characterisation was carried out through Brinell hardness and tensile tests. The results showed that the electroless-coated composites possessed lower porosity and, therefore, higher hardness and ultimate tensile strength than the non-electroless-coated composites.

show abstract

“…Natural materials are evolutionary optimized materials that frequently feature hierarchical structures. They play an important role in bionanotechnology and composite materials [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. Diatom biosilica is one of these biological materials, mainly from two sources: diatomaceous earth and living diatoms.…”

Section: Introductionmentioning

confidence: 99%

Morphology and Mechanical Properties of Fossil Diatom Frustules from Genera of Ellerbeckia and Melosira

Gluch

Liao

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

Fossil frustules of Ellerbeckia and Melosira were studied using laboratory-based nano X-ray tomography (nano-XCT), transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDS). Three-dimensional (3D) morphology characterization using nondestructive nano-XCT reveals the continuous connection of fultoportulae, tube processes and protrusions. The study confirms that Ellerbeckia is different from Melosira. Both genera reveal heavily silicified frustules with valve faces linking together and forming cylindrical chains. For this cylindrical architecture of both genera, valve face thickness, mantle wall thickness and copulae thickness change with the cylindrical diameter. Furthermore, EDS reveals that these fossil frustules contain Si and O only, with no other elements in the percentage concentration range. Nanopores with a diameter of approximately 15 nm were detected inside the biosilica of both genera using TEM. In situ micromechanical experiments with uniaxial loading were carried out within the nano-XCT on these fossil frustules to determine the maximal loading force under compression and to describe the fracture behavior. The fracture force of both genera is correlated to the dimension of the fossil frustules. The results from in situ mechanical tests show that the crack initiation starts either at very thin features or at linking structures of the frustules.

show abstract

A Comparative study on mechanical properties of Al-SiO2 composites fabricated using rice husk silica in crystalline and amorphous form as reinforcement

Cited by 22 publications

References 3 publications

Microstructural and Mechanical Properties of Alumina (Al2O3) Matrix Composites Reinforced with SiC from Rice Husk by Spark Plasma Sintering

Microstructural and Mechanical Properties of Alumina (Al2O3) Matrix Composites Reinforced with SiC from Rice Husk by Spark Plasma Sintering

Fabrication of AA6061-sea sand composite and analysis of its properties

Morphology and Mechanical Properties of Fossil Diatom Frustules from Genera of Ellerbeckia and Melosira

Contact Info

Product

Resources

About