Author
P. Rajendra Prasad
Other affiliations: Reva Institute of Technology and Management
Bio: P. Rajendra Prasad is an academic researcher from Andhra University. The author has contributed to research in topics: Fiber & Natural fiber. The author has an hindex of 7, co-authored 31 publications receiving 139 citations. Previous affiliations of P. Rajendra Prasad include Reva Institute of Technology and Management.
Topics: Fiber, Natural fiber, Epoxy, Mass transfer, Distillation
Papers
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TL;DR: In this article, the consequences of reinforcement content (TiC particles) on sliding wear behavior of aluminum alloy Al 6063 fabricated by stir casting process were investigated, and three different reinforcement percentages (5, 10 and 15) have been considered in the present study.
Abstract: This paper focuses on the consequences of reinforcement content (TiC particles) on sliding wear behavior of aluminum alloy Al 6063 fabricated by stir casting process. Three different reinforcement percentages (5, 10 and 15) have been considered in the present study. Both hardness and tensile tests have been executed on the fabricated samples. The results of the conducted mechanical tests showed that the increase in reinforcement weight percent increased the tensile strength and hardness. Pin-on-disk tests have been performed on the fabricated composite samples to identify their tribological behavior. Reinforcement weight percent, load and sliding speed with three levels each were taken as the process variables, and specific wear rate is considered as response. Box–Behnken design have been utilized to carry out the experiments and to analyze the results. Moreover, ANOVA is carried out to know the influencing parameter on the response. From ANOVA, it was confirmed that reinforcement weight percent and sliding speed is considered as the influencing parameters on the response.
42 citations
TL;DR: The usage of natural fibers as reinforcing materials in composites has increased in recent years, due to their exceptional advantages like lightweight, low cost, and biodegradable as discussed by the authors.
Abstract: Usage of natural fibers as reinforcing materials in composites has increased in recent years, due to their exceptional advantages like lightweight, low cost and biodegradable. To overcome t...
30 citations
TL;DR: In this article, the authors evaluated the influence of filler materials on the mechanical properties of prosopis juliflora fiber reinforced hybrid composites and proved that the bonding between the reinforcements and matrix are uniformly dispersed.
27 citations
TL;DR: In this paper, Setaria italic (Foxtail millet) fiber reinforcement is used to reinforce a setaria fiber polymer composites, which has broad interest in recent times due to low cost and superior mechanical properties.
Abstract: Natural fiber polymer composites have broad interest in recent times due to low cost and superior mechanical properties. The present study deals with Setaria italic (Foxtail millet) fiber reinforce...
22 citations
TL;DR: In this article, the possible usage of natural fiber reinforced composites (NFC) for various industrial applications is explored, and the mechanical and wear behavior of three different NFCs were analyzed.
Abstract: The possible usage of natural fiber reinforced composites (NFC) for various industrial applications is being explored. In the present work, mechanical and wear behavior of three different NFCs were...
21 citations
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TL;DR: In the recent decade, the growth of the natural fiber reinforced polymer (NFRP) composite has made a considerable impact on the polymer composite research and innovation as mentioned in this paper, and this rapid growth warranted their properties over low-cost synthetic fiber composites and reduced environmental impacts.
186 citations
TL;DR: In this article, a spiral-coil tube is fabricated by bending a 8.00-mm diameter straight copper tube into a spiral coil of five turns, and the innermost and outermost diameters of the spiral coil are 270.00 and 406.00 millimeters, respectively.
70 citations
TL;DR: In this paper, the authors present the heat transfer coefficient and friction factor of the Al-water and Cu-water nanofluids flowing in a spiral coil in the laminar flow regime with constant wall temperature condition.
69 citations
TL;DR: In this article, a review on recent developments in luffa natural fiber composites is presented, taking into consideration selected matrices as well as the size, volume fraction, and treatments of fibers.
Abstract: Natural fiber composites (NFCs) are an evolving area in polymer sciences. Fibers extracted from natural sources hold a wide set of advantages such as negligible cost, significant mechanical characteristics, low density, high strength-to-weight ratio, environmental friendliness, recyclability, etc. Luffa cylindrica, also termed luffa gourd or luffa sponge, is a natural fiber that has a solid potential to replace synthetic fibers in composite materials in diverse applications like vibration isolation, sound absorption, packaging, etc. Recently, many researches have involved luffa fibers as a reinforcement in the development of NFC, aiming to investigate their performance in selected matrices as well as the behavior of the end NFC. This paper presents a review on recent developments in luffa natural fiber composites. Physical, morphological, mechanical, thermal, electrical, and acoustic properties of luffa NFCs are investigated, categorized, and compared, taking into consideration selected matrices as well as the size, volume fraction, and treatments of fibers. Although luffa natural fiber composites have revealed promising properties, the addition of these natural fibers increases water absorption. Moreover, chemical treatments with different agents such as sodium hydroxide (NaOH) and benzoyl can remarkably enhance the surface area of luffa fibers, remove undesirable impurities, and reduce water uptake, thereby improving their overall characteristics. Hybridization of luffa NFC with other natural or synthetic fibers, e.g., glass, carbon, ceramic, flax, jute, etc., can enhance the properties of the end composite material. However, luffa fibers have exhibited a profuse compatibility with epoxy matrix.
67 citations
TL;DR: A review of metal matrix composites can be found in this paper, where the turn of events, use, and future capability of Al-MMCs in different mechanical and business applications are examined, together with the current difficulties frustrating their full market entrance.
Abstract: For the comfortable and luxurious living of human beings, lakhs of products are beings produced daily and are increasing in number rapidly, using innovative technologies. So is the increasing demand for different materials to possess required properties, many a time contradicting ones like light weight and high strength. This necessity for new material with unconventional properties has paved the way to the emergence and development of materials—Metal Matrix Composites (MMC). Materials that possess required properties like high wear and corrosion resistance, good toughness, strength etc., in their fibrous form are conveniently reinforced with base metal matrix to produce MMC. Many such composites are developed for various applications, like in aerospace, automobile, and electronic systems. Development of such new composites posed different challenges in the form of their machinability, formability etc. Various research works attempted to optimize process parameters and develop mathematical models for predicting the machinability. MMCs can be prepared using different processes like Powder Metallurgy, Spray Deposition Method, stir casting, squeeze casting, and electroplating. Different works on MMCs used different production methods. Joining of MMCs is another area where some research is carried out. Some other works used different base materials and reinforcements to obtain needed properties for specific applications. Hence in this context, it is thought apt to consolidate work that is carried out during the last two decades. In this review work, the turn of events, use, and future capability of Al-MMCs in different mechanical and business applications are examined, together with the current difficulties frustrating their full market entrance.
51 citations