M.A.Shadab Siddiqui | King Fahd University of Petroleum and Minerals (original) (raw)

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Papers by M.A.Shadab Siddiqui

Results in Materials, 2024

The rapid evolution of the mechanical industry necessitates reliable and innovative materials. Me... more The rapid evolution of the mechanical industry necessitates reliable and innovative materials. Metal matrix composites (MMCs) have emerged as a leading contender for performing vital roles in this field. Carbon nanostructures, such as graphene and carbon nanotubes (CNTs), are particularly well-suited as reinforcement materials in MMCs. It has been found by recent experimental studies that incorporating CNTs and graphene as reinforcements into metal matrix composites, such as aluminum, magnesium, titanium, nickel, and copper matrices, can significantly enhance the mechanical, thermal, and tribological properties of these materials. This is achieved through various mechanisms, including the restriction of grain growth, hindrance of dislocations, load transfer at interfaces, and mitigation of thermal expansion mismatch. The precise reinforcement and optimization of fabrication techniques have opened up new avenues for achieving uniform nanostructure dispersion and strong interfacial bonding, leading to substantial improvements in quantitative properties. Such advancements in material science hold great promise for the development of high-performance materials with enhanced properties that are vital for various applications, including aerospace, automotive, biomedical, and beyond. The addition of low-carbon nanostructures to polymer matrix, ceramic, and biocomposite systems has also been observed to elicit noteworthy multifunctional improvements. Reinforcing collagen with CNT fibers leads to better mechanical and electrical performance compared to using collagen alone. This critical review provides an insightful and data-driven analysis of the current state of carbon nanostructure (CNTs/graphene)-reinforced metal matrix and biocomposites based on an extensive literature evaluation. The review includes an in-depth examination of the optimized synthesis and processing techniques for CNTs and graphene MMCs, highlighting the impact of reinforcement on their mechanical, thermal conductivity, electrical conductivity, and functional properties. Continued work refining fabrication methods fully leverages their potent multi-functional enhancement capabilities.

Cleaner Materials , 2024

The biodegradable natural polymers and fibers could be suggested to revolutionize 3D printing as ... more The biodegradable natural polymers and fibers could be suggested to revolutionize 3D printing as sustainable, biocompatible, and unique properties in the print matrix for different applications. This review article covers the natural polymers in the form of cellulose, alginate, starch, collagen, silk, chitosan, and gelatin as printing constituent. Furthermore, it includes various natural fibers such as hemp, jute, flax, and bamboo with unique characteristics and advantages in 3D printing. Reinforcements derived from nature have provided better tensile strength, moduli, and flexural properties when infused into polymer matrices, such as PLA, ABS, and PP. Extrusion-based methods, comprising Fused Deposition Modeling (FDM)/Fused Filament Fabrication (FFF), are the most applied techniques of 3D printing for natural-polymer and fiber composites with a principal application in the medical and industrial domains. The future of natural polymers and fibers in 3D printing is becoming very promising despite uniform printability, interfacial adhesion, and mechanical property-related issues. Research in optimizing material composition, processing parameters, and post-processing techniques goes apace to attain the required properties, functionality, and performance. This review provides an outline to researchers and engineers working on 3D printing on the immense potential associated with biodegradable natural polymers and fibers for designing innovative, sustainable, and high-performance products in various applications that contribute to a greener and more sustainable future.

SPE Polymers, 2024

The purpose of this study is to investigate the effective chemical treatment of fly Ash (FA) that... more The purpose of this study is to investigate the effective chemical treatment of fly Ash (FA) that affects the mechanical, thermal, and water absorption capabilities of polystyrene/styrene-butadiene-copolymer (PS/SBC) nanocomposites. NaOH, H 2 SO 4 and distilled water have been employed to conduct the chemical treatment. Specimens have been prepared using injection molding technique. In order to evaluate the mechanical properties of the material, tensile, flexural, impact, and hardness tests were carried out. thermo-gravimetric analysis (TGA) and differential thermal analysis (DTA) were employed to gain an understanding of the thermal behavior of the material. Furthermore, to determine the moisture resistance, water absorption experiments were conducted. Experimental results show that, alkali-treated FA (AL-FA) demonstrated the maximum values with an ultimate tensile strength of 26.68 MPa, acid-treated FA (AC-FA) composite exhibiting the highest flexural strength at 5 MPa whereas water-treated FA (WA-FA) composite led to better impact strength of 17.6 kJ/m 2. TGA revealed that WA-FA and AL-FA composites experienced an 80% reduction in weight at 500 C, while AC-FA composites exhibited weight reductions of 90%. The significance of treatment methods in interfacial interactions between the polymer and FA has been studied through morphological analysis. These findings provide valuable insights that can be applied to future research and industrial applications in the field of sustainable materials engineering. Highlights • Polystyrene/Styrene-Butadiene-Copolymer composites were prepared with Fly ash (FA) filler. • FA pre-treated by NaOH (AL-FA), H 2 SO 4 (AC-FA) and distilled water (WA-FA). • Injection molding technique was employed to prepare the ASTM standard samples. • WA-FA composite exhibited the highest ductility but lower tensile strength. • TGA revealed that AC-FA composites exhibited weight reductions of 90%.

Journal of Reinforced Plastics and Composites, 2024

Nanoparticles are widely used in biocomposite materials due to their ability to improve the mecha... more Nanoparticles are widely used in biocomposite materials due to their ability to improve the mechanical properties of composites. This comprehensive review analyzes the use of nanoparticles to enhance the experimental low and high-velocity impact resistance of natural fiber composites. Various nanoparticles like carbon nanofibers, carbon nanotubes, boron nitride, zinc oxide, and titanium dioxide were investigated as reinforcements at different loading levels. The addition of nano-ZrO2 alone or with graphene oxide yielded the highest impact resistance and interlaminar shear strength of basalt fiber/epoxy composites. Cloisite 20A clay improved the mechanical properties of an epoxy matrix. Carbon/epoxy laminates showed improved maximum impact force, energy absorption, and displacement with 2wt% carbon nanofibers loading. Nanoparticles were found to enhance moisture and temperature resistance by strengthening the fiber–matrix interface. The literature demonstrated that small amounts of well-dispersed nanoparticles can meaningfully improve natural fiber composites’ impact resistance, strength, stiffness, toughness, and energy absorption through mechanisms like crack arresting and bridging. Hybrid carbon-basalt fibers and calcium carbonate nanoparticles also enhanced composite performance. Balancing the nanoparticle loading is crucial to prevent agglomeration effects. Future studies on their toxicity and environmental impacts would be needed for widespread commercial applications of Biocomposites.

Composites Part C: Open Access, 2023

This review paper provides a thorough overview of current knowledge regarding how natural fiber c... more This review paper provides a thorough overview of current knowledge regarding how natural fiber composite materials react to Low-Velocity Impacts. It highlights the key things that influence their performance and potential uses. Natural fiber composites have gotten more attention since they are cost-effective, lightweight, and biodegradable options. However, they have some limitations compared to traditional synthetic composites when handling impacts, which can restrict their application. Low-Velocity Impacts can cause different types of damage, like delamination, fiber pull-out, and matrix cracking. The material's response to these situations is important for its strength and durability. This review examines, summarizes, and suggests the best options for factors like fiber orientation, stacking sequence, hybridization, geometry, size, impactor kinetic energy and velocity, chemical treatment and matrix effects that influence the natural fiber composite response under LVI conditions. By understanding these parameters, the impact resistance of natural fiber composites can be improved by treating the fibers, mixing them with synthetic fibers, adding nano-fillers, changing the architecture of the fibers and improving NFC's impact resistance and damage tolerance while minimizing damage during manufacturing. The findings provide important implications for using natural fiber composites in the aerospace, vehicle, maritime, and sports equipment industries. Enhancing their ability to handle LVI could expand where they are applied in high-performance situations, offering a sustainable option better for the environment than traditional synthetic materials.

Results in Materials, 2024

The rapid evolution of the mechanical industry necessitates reliable and innovative materials. Me... more The rapid evolution of the mechanical industry necessitates reliable and innovative materials. Metal matrix composites (MMCs) have emerged as a leading contender for performing vital roles in this field. Carbon nanostructures, such as graphene and carbon nanotubes (CNTs), are particularly well-suited as reinforcement materials in MMCs. It has been found by recent experimental studies that incorporating CNTs and graphene as reinforcements into metal matrix composites, such as aluminum, magnesium, titanium, nickel, and copper matrices, can significantly enhance the mechanical, thermal, and tribological properties of these materials. This is achieved through various mechanisms, including the restriction of grain growth, hindrance of dislocations, load transfer at interfaces, and mitigation of thermal expansion mismatch. The precise reinforcement and optimization of fabrication techniques have opened up new avenues for achieving uniform nanostructure dispersion and strong interfacial bonding, leading to substantial improvements in quantitative properties. Such advancements in material science hold great promise for the development of high-performance materials with enhanced properties that are vital for various applications, including aerospace, automotive, biomedical, and beyond. The addition of low-carbon nanostructures to polymer matrix, ceramic, and biocomposite systems has also been observed to elicit noteworthy multifunctional improvements. Reinforcing collagen with CNT fibers leads to better mechanical and electrical performance compared to using collagen alone. This critical review provides an insightful and data-driven analysis of the current state of carbon nanostructure (CNTs/graphene)-reinforced metal matrix and biocomposites based on an extensive literature evaluation. The review includes an in-depth examination of the optimized synthesis and processing techniques for CNTs and graphene MMCs, highlighting the impact of reinforcement on their mechanical, thermal conductivity, electrical conductivity, and functional properties. Continued work refining fabrication methods fully leverages their potent multi-functional enhancement capabilities.

Cleaner Materials , 2024

The biodegradable natural polymers and fibers could be suggested to revolutionize 3D printing as ... more The biodegradable natural polymers and fibers could be suggested to revolutionize 3D printing as sustainable, biocompatible, and unique properties in the print matrix for different applications. This review article covers the natural polymers in the form of cellulose, alginate, starch, collagen, silk, chitosan, and gelatin as printing constituent. Furthermore, it includes various natural fibers such as hemp, jute, flax, and bamboo with unique characteristics and advantages in 3D printing. Reinforcements derived from nature have provided better tensile strength, moduli, and flexural properties when infused into polymer matrices, such as PLA, ABS, and PP. Extrusion-based methods, comprising Fused Deposition Modeling (FDM)/Fused Filament Fabrication (FFF), are the most applied techniques of 3D printing for natural-polymer and fiber composites with a principal application in the medical and industrial domains. The future of natural polymers and fibers in 3D printing is becoming very promising despite uniform printability, interfacial adhesion, and mechanical property-related issues. Research in optimizing material composition, processing parameters, and post-processing techniques goes apace to attain the required properties, functionality, and performance. This review provides an outline to researchers and engineers working on 3D printing on the immense potential associated with biodegradable natural polymers and fibers for designing innovative, sustainable, and high-performance products in various applications that contribute to a greener and more sustainable future.

SPE Polymers, 2024

The purpose of this study is to investigate the effective chemical treatment of fly Ash (FA) that... more The purpose of this study is to investigate the effective chemical treatment of fly Ash (FA) that affects the mechanical, thermal, and water absorption capabilities of polystyrene/styrene-butadiene-copolymer (PS/SBC) nanocomposites. NaOH, H 2 SO 4 and distilled water have been employed to conduct the chemical treatment. Specimens have been prepared using injection molding technique. In order to evaluate the mechanical properties of the material, tensile, flexural, impact, and hardness tests were carried out. thermo-gravimetric analysis (TGA) and differential thermal analysis (DTA) were employed to gain an understanding of the thermal behavior of the material. Furthermore, to determine the moisture resistance, water absorption experiments were conducted. Experimental results show that, alkali-treated FA (AL-FA) demonstrated the maximum values with an ultimate tensile strength of 26.68 MPa, acid-treated FA (AC-FA) composite exhibiting the highest flexural strength at 5 MPa whereas water-treated FA (WA-FA) composite led to better impact strength of 17.6 kJ/m 2. TGA revealed that WA-FA and AL-FA composites experienced an 80% reduction in weight at 500 C, while AC-FA composites exhibited weight reductions of 90%. The significance of treatment methods in interfacial interactions between the polymer and FA has been studied through morphological analysis. These findings provide valuable insights that can be applied to future research and industrial applications in the field of sustainable materials engineering. Highlights • Polystyrene/Styrene-Butadiene-Copolymer composites were prepared with Fly ash (FA) filler. • FA pre-treated by NaOH (AL-FA), H 2 SO 4 (AC-FA) and distilled water (WA-FA). • Injection molding technique was employed to prepare the ASTM standard samples. • WA-FA composite exhibited the highest ductility but lower tensile strength. • TGA revealed that AC-FA composites exhibited weight reductions of 90%.

Journal of Reinforced Plastics and Composites, 2024

Nanoparticles are widely used in biocomposite materials due to their ability to improve the mecha... more Nanoparticles are widely used in biocomposite materials due to their ability to improve the mechanical properties of composites. This comprehensive review analyzes the use of nanoparticles to enhance the experimental low and high-velocity impact resistance of natural fiber composites. Various nanoparticles like carbon nanofibers, carbon nanotubes, boron nitride, zinc oxide, and titanium dioxide were investigated as reinforcements at different loading levels. The addition of nano-ZrO2 alone or with graphene oxide yielded the highest impact resistance and interlaminar shear strength of basalt fiber/epoxy composites. Cloisite 20A clay improved the mechanical properties of an epoxy matrix. Carbon/epoxy laminates showed improved maximum impact force, energy absorption, and displacement with 2wt% carbon nanofibers loading. Nanoparticles were found to enhance moisture and temperature resistance by strengthening the fiber–matrix interface. The literature demonstrated that small amounts of well-dispersed nanoparticles can meaningfully improve natural fiber composites’ impact resistance, strength, stiffness, toughness, and energy absorption through mechanisms like crack arresting and bridging. Hybrid carbon-basalt fibers and calcium carbonate nanoparticles also enhanced composite performance. Balancing the nanoparticle loading is crucial to prevent agglomeration effects. Future studies on their toxicity and environmental impacts would be needed for widespread commercial applications of Biocomposites.

Composites Part C: Open Access, 2023

This review paper provides a thorough overview of current knowledge regarding how natural fiber c... more This review paper provides a thorough overview of current knowledge regarding how natural fiber composite materials react to Low-Velocity Impacts. It highlights the key things that influence their performance and potential uses. Natural fiber composites have gotten more attention since they are cost-effective, lightweight, and biodegradable options. However, they have some limitations compared to traditional synthetic composites when handling impacts, which can restrict their application. Low-Velocity Impacts can cause different types of damage, like delamination, fiber pull-out, and matrix cracking. The material's response to these situations is important for its strength and durability. This review examines, summarizes, and suggests the best options for factors like fiber orientation, stacking sequence, hybridization, geometry, size, impactor kinetic energy and velocity, chemical treatment and matrix effects that influence the natural fiber composite response under LVI conditions. By understanding these parameters, the impact resistance of natural fiber composites can be improved by treating the fibers, mixing them with synthetic fibers, adding nano-fillers, changing the architecture of the fibers and improving NFC's impact resistance and damage tolerance while minimizing damage during manufacturing. The findings provide important implications for using natural fiber composites in the aerospace, vehicle, maritime, and sports equipment industries. Enhancing their ability to handle LVI could expand where they are applied in high-performance situations, offering a sustainable option better for the environment than traditional synthetic materials.