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Journal articles on the topic 'Shell Powder'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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1

Srichanachaichok, Wiranchana, and Dakrong Pissuwan. "Micro/Nano Structural Investigation and Characterization of Mussel Shell Waste in Thailand as a Feasible Bioresource of CaO." Materials 16, no. 2 (2023): 805. http://dx.doi.org/10.3390/ma16020805.

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Mussel shell waste, which is regularly disposed by households, restaurants, markets, or farms, causes environmental problems worldwide, including in Thailand, because of its long decomposing time. Owing to a large amount of calcium (Ca) content from calcium carbonate (CaCO3) in mussel shell waste, many Thai local businesses grind the shell waste into powder and sell it as a source of Ca. Generally, these powdered waste shells are a mixture of various types of mussel shell waste. In this study, we investigated and characterized powdered mixed waste shells sold in a local Thai market (called mix

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2

Stel’makh, Sergey A., Evgenii M. Shcherban’, Alexey N. Beskopylny, et al. "Nanomodified Concrete with Enhanced Characteristics Based on River Snail Shell Powder." Applied Sciences 12, no. 15 (2022): 7839. http://dx.doi.org/10.3390/app12157839.

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The utilization of aquaculture waste, such as snail shells, is a severe issue. These shells are common in water-sources and are a by-product of sifting sand for masonry and concrete work. Calcium-rich river shells are of great interest for cement building materials. In this regard, the purpose of this article was to develop a nanomodified concrete with improved characteristics based on the powder of snail shells. Experimental studies have confirmed the effectiveness of the use of river shells in concrete without a decrease in strength characteristics and deterioration of other properties. It h

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3

Mangubat, Florieza, Cerela Looc, and Fretzel Mad. "Combined effects of powdered oyster shell (Ostreidae) and lemongrass (Cymbopogon citratus) as a feed additive for growth development of quail (Coturnix coturnixjaponica)." Ministry of Science and Technology, Vietnam 65, no. 3 (2023): 59–65. http://dx.doi.org/10.31276/vjste.65(3).59-65.

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Calcium, obtained from various sources, is essential to fulfil the dietary requirements of birds. Oyster shells are excellent sources of calcium and are widely used in bird diets. Calcium is a critical factor in eggshell deterioration, affecting its absorption. Consequently, this study aimed to determine the combined effects of powdered oyster shell and lemongrass on the growth, development, and egg quality of birds, specifically using 5, 10, and 15 grams of oyster shell powder as a calcium source. A completely randomised design was used to assess the efficacy of varying amounts of powdered oy

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4

Cha, Inyeong, Jinwoong Kim, and Heeyoung Lee. "Enhancing Compressive Strength in Cementitious Composites through Effective Use of Wasted Oyster Shells and Admixtures." Buildings 13, no. 11 (2023): 2787. http://dx.doi.org/10.3390/buildings13112787.

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Wasted oyster shells generate environmental pollution and odor, thereby causing inconvenience to people. In addition, low-quality aggregates are generated owing to the lack of sand. To address these problems, cementitious composites that replaced sand with oyster shell powder were fabricated in this study, and a total 120 specimens were fabricated (specimen size: 50×50×50 mm3). The oyster shell substitution rate for sand, admixture type, and presence or absence of admixture were set as the experimental parameters. Herein, 0, 30, 70, and 100% of sand was replaced with oyster shell powder to exa

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5

Khan, M., and AKMA Nowsad. "Development of protein enriched shrimp crackers from shrimp shell wastes." Journal of the Bangladesh Agricultural University 10, no. 2 (2013): 367–74. http://dx.doi.org/10.3329/jbau.v10i2.14930.

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A recipe of shrimp cracker (a type of crispy biscuit) enriched with shrimp shell protein was developed from underutilized shrimp shell wastes and the effects of different amount of shrimp shell powders on the quality and shelf life of the products were studied. Shrimp industry wastes (head, appendages, carapaces, and shell) were thoroughly washed, dried in hot air oven at 60°C for 24 h and ground by a blender. Fine shrimp shell powder thus obtained was used for making shrimp crackers. Hydrolyzed vegetable oil, was beaten by hand and other ingredients such as powder milk, sugar, oil, baking pow

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6

Singaravelu, D. Lenin, Rahul Ragh M., Vijay R., S. Manoharan, and Mohamed Kchaou. "Development and Performance Evaluation of Eco-Friendly Crab Shell Powder Based Brake Pads for Automotive Applications." International Journal of Automotive and Mechanical Engineering 16, no. 2 (2019): 6502–23. http://dx.doi.org/10.15282/ijame.16.2.2019.4.0491.

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The present study deals with the effective usage of crab shell, which is a solid waste in the seafood industry. The crab shell was powdered and treated with chemicals to obtain the chemically treated crab shell powder. The crab shell was powdered and heated to the desired conditions to obtain thermally processed crab shell powder. These two powders so obtained were used with other ingredients in the development of brake pads. For comparison crab shell powder free brake pads were also developed. The developed brake pads were tested for various characteristics as per the industrial standards. Th

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Yusof, Mahsuri, Nur Tahirah Razali, Nicholas H. T. Kuan, and Dexter Sigan John. "Characterisation of Polymesoda bengalensis Shell Powder." Journal of Applied Science & Process Engineering 7, no. 1 (2020): 500–509. http://dx.doi.org/10.33736/jaspe.2229.2020.

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The objectives of this research are to determine the element and polymorph of Polymesoda bengalensis shell and to compare its result with other bivalve shells. The polymorph of the powder was identified by X-ray powder diffraction (XRD) and its morphology was observed through scanning electron microscope (SEM). The XRD study revealed that the shell powder consisted entirely of aragonite. The analysis from SEM also revealed that the aragonite was in the form of rod-like crystal. The morphology of sectional, inner and outer surfaces of the shell was scanned using SEM. It was found that the arago

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Chen, Chun, Yongchao Liu, Qiang Tang, Peigen Zhang, Yamei Zhang, and Zhengming Sun. "Preparation and Properties of Wall Coatings with Calcined Shell Powder as Fillers." Materials 12, no. 14 (2019): 2213. http://dx.doi.org/10.3390/ma12142213.

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Using as thermal reflection coating fillers is a significant recycle method for the largely available by-product of shell powders in aquaculture. However, the organics in the shell powder harm its reflection ability. To enhance the thermal reflection performance of the shell powder filled coatings, in this work, the calcined shell powders were used to fill coatings, and the performance of the coatings filled by the calcined shell powders under different temperatures was comparably investigated. Experimental results indicate that after calcination at 400 °C, the organics in the shell powders ar

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9

Miao, Guanxiong, Mohammadamin Moghadasi, Ming Li, Zhijian Pei, and Chao Ma. "Binder Jetting Additive Manufacturing: Powder Packing in Shell Printing." Journal of Manufacturing and Materials Processing 7, no. 1 (2022): 4. http://dx.doi.org/10.3390/jmmp7010004.

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Shell printing is an advantageous binder jetting technique that prints only a thin shell of the intended object to enclose the loose powder in the core. In this study, powder packing in the shell and core was investigated for the first time. By examining the density and microstructure of the printed samples, powder packing was found to be different between the shell and core. In addition, the powder particle size and layer thickness were found to affect the powder packing in the shell and core differently. At a 200 µm layer thickness, for the 10 µm and 20 µm powders, the core was less dense th

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10

Koumassa, O. A. Bassitou, Mathias Hounsou, Romaric Ouétchéhou, E. S. Mélissa Akpovi, A. A. Lilans Zannou, and D. Sylvain Dabadé. "Effects of Oyster Shell Powder on the Microbial and Physicochemical Quality of Afitin, a Traditional Fermented Condiment." Asian Food Science Journal 22, no. 12 (2023): 1–10. http://dx.doi.org/10.9734/afsj/2023/v22i12686.

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Aims: Afitin is a perishable condiment due to its high water content. Various preservatives are used to extend its shelf life, and among them, salt (NaCl) has generated controversy due to potential health risks associated to exposure to elevated concentrations of salt. The present study aims at assessing the effect of oyster shell powder on the quality changes of Afitin during storage at 30°C. Methodology: Oyster shell powder was added to the condiment just before the natural fermentation at concentrations of 0.5%, 1% and 2%. At the end of the 24 h natural fermentation, the product was s

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Bayuseno, A. P., A. I. Prasetya, R. Ismail, B. Setiyana, and J. Jamari. "REUSE OF WASTE CRAB SHELLS FOR SYNTHESIS OF CALCIUM CARBONATE AS A CANDIDATE BIOMATERIAL." Rasayan Journal of Chemistry 15, no. 01 (2022): 523–28. http://dx.doi.org/10.31788/rjc.2022.1516640.

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The crab shell (Portunus Pelagicus) wastes are constituted of major calcium carbonate (account for 70 wt. %) and have the potential to reuse as a starting biomaterial for precipitated calcium carbonate (PCC) products. The purpose of the present work was to synthesize PCC powder using crab shells based on the gas-solid-liquid carbonation route. In this experiment, crab shell powder was prepared by washing, drying, and subsequent grinding. The resulting powder was then calcined at 900 ℃ for 5 h before being used for the synthesis of the PCC product. Later, the calcined crab shell powder was diss

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12

Suseela, Alla, and SS Asadi. "Experimental Investigation of Snail Shell-based Cement Mortar: Mechanical Strength, Durability and Microstructure." U.Porto Journal of Engineering 9, no. 4 (2023): 51–70. http://dx.doi.org/10.24840/2183-6493_009-004_001131.

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Snail shells are the discarded bio-shell waste from restaurants, and oceans creating huge environmental problems for society. Living organisms are harmed when these shells are released. As previously stated, the work focuses primarily on the utilisation of snail shell powder as a raw ingredient in cement mortar. The mechanical and durability features of snail shell-based cement mortar were compared to the nominal mortar in this study. Snail shell powder, ranging from 0% to 35%, was used to partially substitute cement in mortar, with a variation of 5%. XRD (X-Ray Diffraction) was used to determ

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C. D. Darmawan, A. M. Fuah, Y. C. Endrawati, and Salundik. "Performance Pheretima sp. and The Quality of Vermicompost on Media Using Clam and Snail Shell Flour." Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan 12, no. 3 (2024): 144–50. http://dx.doi.org/10.29244/jipthp.12.3.144-150.

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The abundance of green mussel shells, clam shells, and snail shells that have not been maximally utilized has caused environmental disturbances. These shells can be used as a substitute for worm food because of their good nutritional content. This research aimed to analyze the productivity of Pheretima sp. with the combination of shell powder (green mussel, clam, and snail) and cow dung to their living media (feed) and the quality of vermicompost. The data were analyzed using SAS Studio application with completely randomized design (CRD), 10 treatment levels, with 3 replications each. The obse

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14

Lubis, Afrinaldi, Syahbudin Hasibuan, and Asmah Indrawati. "Pemanfaatan Serbuk Cangkang Telur Ayam dan Pupuk Kascing di Tanah Ultisol terhadap Pertumbuhan dan Produksi Terung Ungu (Solanum Melongena L.)." Jurnal Ilmiah Pertanian ( JIPERTA) 2, no. 2 (2020): 109–16. http://dx.doi.org/10.31289/jiperta.v2i2.331.

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This study aims to determine the growth and yield of eggplant with chicken egg shell powder utilization and Kascing fertilizer, This research was conducted from March until the month of June 2019. The method used in this study is a randomized block design in factorial, with 2 (two) treatment factors, namely: 1) Factors dose of powdered chicken egg shells (C), which consists of five levels, namely: C0 = control ( without treatment); C1 = chicken egg shell powder 5 g / polybag; C2 = chicken egg shell powder 10 g / polybag; C3 = chicken egg shell powder 15 g / polybag; C4 = chicken egg shell powd

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15

Alsuhaibani, Amnah M. A. "Rheological and Nutritional Properties and Sensory Evaluation of Bread Fortified with Natural Sources of Calcium." Journal of Food Quality 2018 (September 17, 2018): 1–7. http://dx.doi.org/10.1155/2018/8308361.

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By-products of oyster shell and egg shell are new candidates for use as calcium supplements. The effect of the fortification of bread with natural sources of calcium such as skim milk powder, egg shell powder, and oyster shell powder at levels of 10%, 2%, and 2%, respectively, on the rheological, nutritional, and sensory properties was determined. Compared to the control bread, breads fortified with egg and oyster shells had a higher water absorption (%), dough development time, dough stability, mixing time, heat of transition, and setback viscosity but a lower weakening index. Skim milk-forti

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16

Nurjanah, Nurjanah, M. Dani Juli Rohman, and Riski Krisdiantoro. "PENGARUH PENAMBAHAN LIMBAH SERBUK CANGKANG KERANG DAN SERBUK KACA SEBAGAI BAHAN PENGGANTI SEMEN TERHADAP KUAT TEKAN BETON NORMAL." PROKONS Jurusan Teknik Sipil 14, no. 1 (2020): 22. http://dx.doi.org/10.33795/prokons.v14i1.233.

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Abstrac This research was conducted to determine the effect of the addition of waste shells and shell powder glass powder on the compressive strength of concrete. The method used is to use the experimental method by making test specimens with a mixture of waste shells powder shells and glass powder by 4%; 8%; 12% then compared with normal concrete without added ingredients. Concrete specimens that have been soaked then tested their compressive strength with the age of 7 days, 14 days, 21 days, and 28 days. The results of the test showed that normal concrete which was not added with the waste o

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17

Abutu, J., S. A. Lawal, M. B. Ndaliman, R. A. Lafia-Araga, and A. S. Abdulrahman. "Effects of Particle Size Distribution on the Properties of Natural-Based Composite." International Journal of Engineering Materials and Manufacture 4, no. 4 (2019): 170–77. http://dx.doi.org/10.26776/ijemm.04.04.2019.05.

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In this study, locally sourced natural materials (coconut shells and seashells) were used separately to produce composites. The powders were sieved with sieve size of 10 µm and characterized using a particle size analyser (DLS) in order to ascertain their particle size distribution. Also, the effects of particle size distribution on the performance of sourced coconut shells and seashells-based composite was investigated. About 52% of the characterized powder was afterward used along with other ingredients (35% binder, 8% alumina and 5% graphite) to produced composites using moulding pressure (

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18

Wang, Quan, Fangyuan Jiang, Xiao-Kun Ouyang, Li-Ye Yang, and Yangguang Wang. "Adsorption of Pb(II) from Aqueous Solution by Mussel Shell-Based Adsorbent: Preparation, Characterization, and Adsorption Performance." Materials 14, no. 4 (2021): 741. http://dx.doi.org/10.3390/ma14040741.

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As a natural biological adsorbent, shell powder is inexpensive, highly efficient, and does not leave any chemical residue; thus, it can be used to remove contaminants from water. In this study, we used mussel shells as a raw material to prepare an adsorbent. Scanning electron microscopy was used to observe the surface morphology of the mussel shell powder before and after calcination, and X-ray diffraction measurements, Fourier transform infrared spectroscopy, differential scanning calorimetry, X-ray photoelectron spectroscopy, and Brunauer–Emmett–Teller measurements were performed to analyze

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19

Pianhanuruk, Ekkawit, and Uraiwan Sookyung. "Preparation of Calcium Carbonate from Cockle Shells as Fillers in Natural Rubber." Key Engineering Materials 951 (August 7, 2023): 93–101. http://dx.doi.org/10.4028/p-z88ozx.

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The purpose of this research is to study the preparation of calcium carbonate from cockle shells by precipitation method and compare it to calcium carbonate from high temperature heating, commercial calcium carbonate, and cockle shell powder. The properties of the vulcanized natural rubber mixed with different types of calcium carbonate were observed. It appeared that the precipitated calcium carbonate delivered the best properties (hardness, 300% modulus, tensile strength, elongation at break, tear strength, and abrasion resistance), followed by the high temperature heated calcium carbonate,

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Hameed, Isam Salah, Hamid M. Mahan, and Ahmed Salah Hameed. "Microwave Power Absorption Evaluation of River Shell Particles Reinforced Polyester Composite." Periodica Polytechnica Electrical Engineering and Computer Science 64, no. 2 (2019): 192–99. http://dx.doi.org/10.3311/ppee.14263.

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The objective of this research is to analyze the microwave power absorption properties of Unsaturated Polyester Resin (UPR) composite reinforced with micro size river-shell with an aim to figure out the new formed composites with the best microwave power absorption scenario. The composites were prepared by using river shell powder in micro-particle size as a filler material with unsaturated polyester composites. Using free-space transmission technique and within the x-band frequency range, the microwave power absorption properties were studied with varied percentages of river shell powder bein

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21

Seesanong, Somkiat, Banjong Boonchom, Kittichai Chaiseeda, Wimonmat Boonmee, and Nongnuch Laohavisuti. "Conversion of Bivalve Shells to Monocalcium and Tricalcium Phosphates: An Approach to Recycle Seafood Wastes." Materials 14, no. 16 (2021): 4395. http://dx.doi.org/10.3390/ma14164395.

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The search for sustainable resources remains a subject of global interest and the conversion of the abundantly available bivalve shell wastes to advanced materials is an intriguing method. By grinding, calcium carbonate (CaCO3) powder was obtained from each shell of bivalves (cockle, mussel, and oyster) as revealed by FTIR and XRD results. Each individual shell powder was reacted with H3PO4 and H2O to prepare Ca(H2PO4)2·H2O giving an anorthic crystal structure. The calcination of the mixture of each shell powder and its produced Ca(H2PO4)2·H2O, at 900 °C for 3 h, resulted in rhombohedral cryst

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Zhang, Zhongwei, Yubo Cui, Junwen Ma, Wanjun Zhang, and Zhaobo Chen. "Feasibility Study of Shell Powder as Sludge Conditioning Agent." E3S Web of Conferences 194 (2020): 04016. http://dx.doi.org/10.1051/e3sconf/202019404016.

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Sludge becomes a “world problem” with the increase of wastewater treatment amounts across the world. Sludge treatment is mainly for reduction, stabilization, harmlessness and recycling. By adding sludge conditioning agents, it can effectively reduce the moisture content and the specific resistance of sludge, and provide effective guarantees for subsequent sludge dewatering. The shells were used to reduce the moisture content and specific resistance of sludge herein. Through the analysis of experimental data, the results showed that the best dosage of shell powder solution was 6% of the dry wei

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23

Cherkashina, Natalia Igorevna, Zoya Vladimirovna Pavlenko, Dar’ya Vasil’yevna Pushkarskaya, Lyubov Vasilievna Denisova, Semen Nikolayevich Domarev, and Dar’ya Aleksandrovna Ryzhikh. "Synthesis and Properties of Polystyrene Composite Material with Hazelnut Shells." Polymers 15, no. 15 (2023): 3212. http://dx.doi.org/10.3390/polym15153212.

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In this study we evaluated the potential use of hazelnut shell powder in the production of a composite material. Polystyrene was used as a polymer matrix. This work presents the results of modifying hazelnut powder particles to create a polystyrene shell on their surfaces. Modification of the filler increased its contact angle wetted with water from θ=60.16±1.03° to θ=87.02±1.10°. Composite materials containing from 10 to 50 wt.% of modified hazelnut shell powder were prepared and studied. As a result of the experiments, it was found that the composites have optimal physical, mechanical, and o

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Rizal, Moh Basroni, Widyasri Prananingrum, and Dian Widya Damaiyanti. "Penaeus monodon Shell Powder Extract as A Candidate for Dental Material Restoration." Insisiva Dental Journal: Majalah Kedokteran Gigi Insisiva 12, no. 1 (2023): 20–24. http://dx.doi.org/10.18196/di.v12i1.16299.

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The prevalence of dental caries in Indonesia is still high. One of the dental caries treatments is direct restoration. Biomaterial, often used as a restorative material, is glass ionomer cement which has a silica content of 35%. Silica is found in Penaeus monodon shells which have been a waste of production. This research aims to study the characteristic of Penaeus monodon shell powder extracts as candidates for dental materials restoration. The research sample used was Penaeus monodon shell powder extract which was then carried out by a depigmentation process by mixing acetone 1:10 (w/v) ≤ 20

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Alisha, Shaik Subhan, Venkateswarlu Dumpa, and Vemu Sreenivasulu. "Effect of Crab Shell on Properties of Soil: A Mini Review." IOP Conference Series: Earth and Environmental Science 1280, no. 1 (2023): 012035. http://dx.doi.org/10.1088/1755-1315/1280/1/012035.

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Abstract Soil stabilization is crucial for infrastructure development, cost savings, environmental protection, construction efficiency, and overall project safety. Cement and lime are frequently used conventional materials for stabilizing soils worldwide. The production of these materials releases huge amounts of greenhouse gasses. There is a need to minimize the utilization of these materials. Researchers are finding alternative materials to cement or lime. The fly ash, silica fume, and crab shells are utilized as partial replacement material for cement. Crab shell waste, generated from the s

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Lu, Wen-Chien, Chien-Shan Chiu, Chang-Wei Hsieh, et al. "Calcined Oyster Shell Powder as a Natural Preservative for Maintaining Quality of White Shrimp (Litopenaeus vannamei)." Biology 11, no. 2 (2022): 334. http://dx.doi.org/10.3390/biology11020334.

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Oyster shell waste has led to many problems, including displeasing odors, pollution of the seaside, and harm to the environment. Using calcined oyster shells as a natural preservative might solve the problem of oyster shell waste. We studied the use of calcined oyster shell powder (COSP) as a natural preservative for improving shrimp shelf-life over 12 days under refrigerated conditions. As compared with the control, COSP treatment effectively retarded pH change, reduced the formation of total volatile basic nitrogen, and inhibited bacterial growth during refrigerated storage. In addition, shr

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Kholil, A., S. T. Dwiyati, Riyadi, and H. P. Randika. "Performance Testing of Motorcycle Centrifugal Clutch Lining Made from Composite Wood Powder, Coconut Fibre, and Green Mussel Shell." Journal of Physics: Conference Series 2019, no. 1 (2021): 012065. http://dx.doi.org/10.1088/1742-6596/2019/1/012065.

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Abstract This study aims to determine the performance of a motorcycle fitted with a CVT centrifugal clutch lining made from a composite of wood powder, coconut fiber and green clam shell powder with epoxy resin as a constituent matrix. The process of making clutch lining is carried out by mixing the composite constituent materials in the form of powder. The specimens were made in two variations where clutch B was 20% wood powder, 20% coconut fibre, 10% green shell powder. Clutch C was 10% wood powder, 30% coconut fiber, and 10% green shell powder. Genuine clutch A was tested by the same method

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H. Jasim, Shaymaa, Wisam Alhassan, and Ziyad T. Almalki. "Egg Shell powder reinforced Polypropylene (PP) composite: Effect of mechanical and heat capacity." Al-Qadisiyah Journal Of Pure Science 25, no. 3 (2020): 16–27. http://dx.doi.org/10.29350/qjps.2020.25.3.1109.

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The mechanical properties of Polypropylene (PP): Egg Shell powder composite was assessed with respect to the effect of filler content shells powder Egg varying from 1% to 10% by weight of the composite. Apparent amelioration in the mechanical parameters has recorded best ratios 5% and 7% weight. The mechanical properties of prepared film have examined through diverse parameters concerning the elastic deformity based on calculated the load – elongation properties. The conduct of the stress - strain curve was investigated in terms of the cold drawing model. The elastic behavior decreased at 5% c

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Kondagorla, Shivshankar R., and Swapnil V. Madhamshettiwar. "Adsorption of Chromium (VI) from Wastewater Using Blended Natural Adsorbent." Oriental Journal Of Chemistry 40, no. 4 (2024): 1134–37. http://dx.doi.org/10.13005/ojc/400427.

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In this study adsorption of chromium (VI) ion by using blended natural novel adsorbent like neem leaves powder with peanut shell powder. The batch Adsorption experiments were conducted by different proportions of blended neem leaf powder and peanut shells powder and variations in the weight of adsorbents, contact time at room temperature, and various pH. Investigate the concentration of adsorbate before adsorption and after adsorption by 1, 5 Diphenyl Carbazide Colorimetric method with reference to calibration curve. Results obtained by blended neem leaves powder with peanut shell powder adsor

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Borah, Roktutpal, Karanjit Kapila, Pranjal Borah, Nabanita Daimary, and Pulakesh Chetia. "A Comparative Study of the Effect of Natural Fillers Embedded in Jute/Basalt Hybrid Composite." Materials Science Forum 1082 (March 31, 2023): 15–24. http://dx.doi.org/10.4028/p-6x26n6.

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This study illustrates how the mechanical characteristics of a composite may be altered by adding powdered natural fillers such as fish scales or coconut shells. Hand lay-up approach has been used to create the Jute/Basalt hybrid composite with fillers. The epoxy and hardener were combined at a weight ratio of 10:1, and then the natural fillers were added at varied percentages of 3%, 6%, and 9%. The ASTM standards were used for the mechanical test. Fish scale filler has greater tensile and flexural strengths than coconut shell powder, but the latter's impact strength grows with increasing amou

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Widodo, Hernowo, Mohammad Riyadi Setyarto, Andhy Andhy, Mohamad Prastya, and Amaliah Annisa. "Laboratory Analysis Using Coconut Shell from Bekasi Regency for Drilling Mud Additives on Oil and Gas Wells." Journal of Earth Energy Engineering 9, no. 1 (2020): 46–58. http://dx.doi.org/10.25299/jeee.2020.3975.

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Drilling activity in deep formation usually gave greater challenges to the engineer due to its high pressure and temperature. To minimize this problem, drilling mud needs to be modified into a certain condition where it should be performed well in those extreme situations. The drilling mud quality does not significantly decrease, it simply requires better quality of mud at certain points at high temperatures. Certain additives are needed to maintain their performance. Therefore, this study aims to improve the quality of drilling mud by adding additives from carbon powder originating from cocon

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Stephenson, Richard, Kyle Bandaccari, and Howard Imhof. "Novel Core-Shell Conductive Materials for LTCC Metallizations." International Symposium on Microelectronics 2016, no. 1 (2016): 000721–25. http://dx.doi.org/10.4071/isom-2016-thp21.

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Abstract Silver and copper core-shell powder materials are introduced and discussed for application in LTCC. Properties of the core-shell powders are reviewed and suggested process conditions are shown. The conductive core-shell materials are fabricated using chemical precipitation technology in the presence of core materials comprised of LTCC tape body powder. Result of application of the conductive core-shell materials are presented on various commercial tapes along with corresponding reliability data.

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Eransyah, Muhammad Fitra, Ninik Paryati, and Rika Sylviana. "Pengaruh Penggunaan Serbuk Arang Batok Kelapa Terhadap Kuat Tekan Beton." Jurnal Sains dan Teknologi (JSIT) 2, no. 1 (2022): 53–59. http://dx.doi.org/10.47233/jsit.v2i1.88.

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Processing of coconut shells into charcoal powder as a concrete mixture. The use of coconut shell charcoal powder on the compressive strength of concrete aims to be a substitute for cement for normal concrete compressive strength and to determine the optimum concrete compressive strength after substitution of cement using coconut shell charcoal powder. In this study the use of coconut shell charcoal powder as a cement substitution with variations of 0%, 2.5%, 5% and 7.5%. Concrete testing was carried out at the age of 28 days after treatment by being immersed in water. The results of the analy

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Hong, Yao-Ming, and Sharan Roy Choudhury. "The Substitution Effect of the Fine Aggregate in Concrete with Oyster Shell." Materials 17, no. 24 (2024): 6148. https://doi.org/10.3390/ma17246148.

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The construction industry contributes significantly to global carbon emissions, accounting for approximately 27% of total emissions. With the increasing demand for concrete, there is a growing need to explore alternative materials that can reduce environmental impact. This study investigates the potential of using oyster shell powder, a waste material, as a partial replacement for fine aggregates in concrete. The methodology involves replacing fine aggregates with oyster shell powder in varying proportions (0%, 10%, 20%, 30%, and 40%) and testing the compressive strength of the resulting concr

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Guo, Sheng Da, Jian Gao Yang, Hao Chen, Er Tao Zhu, and Jian Lv. "Preparation and Electrocatalytic Activity of Nanophase WC-Co Composite Powder and WC Powder with Spherical Shell Structure." Materials Science Forum 816 (April 2015): 694–98. http://dx.doi.org/10.4028/www.scientific.net/msf.816.694.

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Using ammonium metatungstate (AMT), soluble cobalt salt and organic carbon source as the raw materials, the W-Co precursor powder with spherical shell structure was first fabricated by spray conversion method. Then the nanophase WC-Co composite powder was fabricated via calcinations and low temperature reduction-carbonization methods. And the WC powder with the same spherical shell structure was prepared at last by dissolving the Co phase into H3PO4and H2O2. The phase composition, powder morphology, chemical components and its distribution of the samples at different stages were characterized

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Plotnikova, I. V., G. O. Magomedov, T. A. Shevyakova, V. V. Gubkovskaya, and V. E. Plotnikov. "Chocolate muffins with improved quality." Proceedings of the Voronezh State University of Engineering Technologies 81, no. 2 (2019): 125–32. http://dx.doi.org/10.20914/2310-1202-2019-2-125-132.

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Nowadays the production of competitive flour and chocolate confectionery products of improved quality and low cost is an important area. An alternative substitute for cocoa powder - cocoa shell powder - is promising in this regard. It can preserve the color, taste and aroma of the finished product. The objects of study were natural cocoa products obtained by cocoa beans processing - this is cocoa powder and heat-treated powder from cocoa shells. By the chemical composition the enrichment used contains a significant amount of valuable physiological effects of food substances. Compared with coco

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Yu, Yueqiang, Minzheng Jiang, Suling Wang, et al. "Impact of Particle Size on Performance of Selective Laser Sintering Walnut Shell/Co-PES Powder." Materials 14, no. 2 (2021): 448. http://dx.doi.org/10.3390/ma14020448.

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The agricultural and forestry waste walnut shell and copolyester hot-melt adhesives (Co-PES) powder were selected as feedstock. A kind of low-cost, low-power consumption, and environmentally friendly walnut shell/Co-PES powder composites (WSPC) was used for selective laser sintering (SLS). Though analyzing the size and morphology of walnut shell particle (≤550 μm) as well as performing an analysis of surface roughness, density, and mechanical test of WSPC parts with different particle sizes, results showed that the optimal mechanical performance (tensile strength of 2.011 MPa, bending strength

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Phewphong, Sunti, Kanokwan Najai, and Tosawat Seetawan. "The Various Concentration Effected on Crystallite Size of Calcium Carbonate." Key Engineering Materials 675-676 (January 2016): 667–70. http://dx.doi.org/10.4028/www.scientific.net/kem.675-676.667.

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The calcium carbonate was extracted from Pomacea Canaliculata Lamarck (Cherry shell) by using the hydrothermal method. Cherry shell was washed and crushed by DI water and mortar. The powder size was analyzed by particle (aperture Size 63 μm), added x HCl (x = 2, 3, 4) and y Na2CO3 (y = 1, 1.5, 2) mixed with fine powder from Cherry shell. The mixed power was filtered annealed by autoclave at controlled temperature at 333 K for 20 h. The crystal structure was characterized by X−ray diffraction method. The phase transformation of CaCO3 was analyzed by Fourier transform infrared spectroscopy (FTIR

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Liu, Yu-Wen. "Effect of waste oyster shell powder as additive on properties and sulfate attack resistance of mortar." Revista de la construcción 23, no. 2 (2024): 164–76. http://dx.doi.org/10.7764/rdlc.23.2.164.

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In this study, the waste oyster shell powder was added in mix design to investigate the properties, sulfate attack resistance and sulfide bacterial of concrete. Add 0%, 1%, 3%, 6% and 9% oyster shell powder to the concrete to replace part of the sand. The study conducted flow tests, compressive strength tests, sulfate corrosion resistance and antibacterial tests. From the results, it was found that adding oyster shell powder improved the resistance to sulfate corrosion and antibacterial properties and became more effective as the substitution ratio increased. In addition, the sulfate attack re

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Duan, Hui Min, and Shi Quan Liu. "Functions of SiO₂-Shells in Core-Shell Structured Particles." Applied Mechanics and Materials 670-671 (October 2014): 279–82. http://dx.doi.org/10.4028/www.scientific.net/amm.670-671.279.

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Coating a particle with another material to form a core-shell structured composite is often used in powder technology. Silica has widely been selected as the shell material due to its ease of fabrication, versatile surface functionality, physical and chemical stability. In this artilce, the proctective and modifying roles of silica shells in core-shell particles have been briefly reviewed.

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S. Hadi, Rusul, and Hwazen S. Fadhil. "THE MECHANICAL BEHAVIOR OF POLYMER COMPOSITES REINFORCED BY NATURAL MATERIALS." Journal of Engineering and Sustainable Development 25, no. 02 (2021): 88–96. http://dx.doi.org/10.31272/jeasd.25.2.10.

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Abstract the waste natural such as groundnut shell, rice husk, eggshell, pistachio shells, etc., are regionally available. All these waste natural has good mechanical characteristics and can be employed more efficiently in the improvement of composite materials for different uses. This paper shows the study of the impact test, tensile test and flexural test properties of the pistachio shell powder strengthened epoxy resin. Pistachio shell powder with different weight fraction (5%, 7%, and 9%) strengthened epoxy resin has been developed by hand lay-up method. The tensile test, flexural test and

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Rafachinho, Guilherme Bandeca, Lucas Aparecido Manzani Lisboa, José Carlos Cavichioli, Thiago de Souza Ferreira, and Aldeir Silva. "Alternative use of soil conditioners for cotton cultivation." Research, Society and Development 13, no. 2 (2024): e11113242961. http://dx.doi.org/10.33448/rsd-v13i2.42961.

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Some production environments may present low pH and high levels of Al3+, thus making this element a limiting factor in the productivity of the cotton crop, which makes it necessary to use agricultural gypsum as a soil conditioner and even shell dust as sources low-cost alternatives to improve soil chemical attributes. The objective of this work was to know the responses of the use of alternative soil conditioners with aluminum in the cotton crop. The experiment was carried out in August 2022, at Faculdades Integradas Stella Maris (FISMA). The design was completely randomized, with six treatmen

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Liu, Y. S., K. X. Tang, Y. T. Liao, et al. "Calcined and Hydrated Shell Powder with Layered Porous Structures for Food Sterilization and Pesticide Residue Removal." Journal of Physics: Conference Series 2639, no. 1 (2023): 012010. http://dx.doi.org/10.1088/1742-6596/2639/1/012010.

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Abstract Shell powder, a natural source product with excellent adsorption and antibacterial properties, has exhibited a broad application prospect in daily life. Herein, low-temperature calcined shell powder (LCSP) and high-temperature calcined and hydrated shell powder (HCSP) were prepared using shells as raw materials in different calcination processes. The surface structures and the chemical compositions were analyzed and the specific surface areas and pore size distributions were measured. The LCSP and HCSP reserved the unique layered porous structures of the shell. The main composition of

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Wilson, Bridget Jeyatha, and Lizymol Philipose Pampadykandathil. "Novel Bone Void Filling Cement Compositions Based on Shell Nacre and Siloxane Methacrylate Resin: Development and Characterization." Bioengineering 10, no. 7 (2023): 752. http://dx.doi.org/10.3390/bioengineering10070752.

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Shell nacre from Pinctada species has been extensively researched for managing bone defects. However, there is a gap in the research regarding using shell nacre powder as a cement with improved biological and physicochemical properties. To address this, bone void filling cement was formulated by incorporating shell nacre powder and an organically modified ceramic resin (ormocer). The shell nacre powder was specifically processed from the shells of Pinctada fucata and analysed using thermogravimetric analysis (TGA), X-ray diffraction spectroscopy, Fourier transform infrared (FTIR), and Raman sp

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Nopriansyah, Eko, Ace Baehaki, and Rodiana Nopianti. "Pembuatan Serbuk Cangkang Keong Mas (Pomacea canaliculata L.) serta Aplikasinya sebagai Penjernih Air Sungai dan Pengikat Logam Berat Kadmium." Jurnal FishtecH 5, no. 1 (2016): 1–10. http://dx.doi.org/10.36706/fishtech.v5i1.3513.

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This study aims to produce golden snail shell powder that can be used as a purifier and a metal binder on Musi River water. The method used was a randomized block design with two factors, namely the type of purifier treatment (A) consist of golden snails shell powder and shrimp shell chitosan. Purifier concentration factor (B) is 0%, 0.5% and 1%. Data obtained through several stages in a row of manufactured of golden snail powder, application of golden snail shell powder and shrimp shell chitosan, and analyzed the effect of golden snail shell powder and shrimp shell chitosan on turbidity, TDS,

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Yuhardin, Yuhardin, Ramli Ramli, and Sugiyarto Sugiyarto. "Pemanfaatan Limbah Cangkang Kerang Kepah (Polymesoda Erosa ) Sebagai Katalisator Pada Proses Carburizing." Jurnal Inovasi Teknologi Terapan 2, no. 2 (2024): 377–81. https://doi.org/10.33504/jitt.v2i2.183.

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In general, the shells are widely used as handicraft materials such as wall decorations or building interior decorations and as a mixture of animal feed, therefore other utilization is needed to increase the use value of the shells. Clam shells contain calcium in the form of calcium carbonate (CaCO3) by 96.5%. The high calcium content of the shell allows the shell to be used as a source of catalyst material in the carburizing process. The catalyst affects the carburizing process because it can accelerate the formation of CO2 gas, which is needed for the carbon diffusion process on the surface

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Laxmikath Bhakkad, Raj, Sirigamalla Sri Charan, Tanya Buddi, and S. Obad. "Manufacturing and Evaluation of jute fiber with gypsum and walnut shell powder Composite with Epoxy Resin." E3S Web of Conferences 552 (2024): 01086. http://dx.doi.org/10.1051/e3sconf/202455201086.

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The purpose of this study is to examine the mechanical and physical characteristics of jute fibre composites reinforced with different sizes of gypsum and walnut shell powder in an epoxy resin matrix using hand layup technique. Using a 3x3 orthogonal array that encompasses three parameters at three levels each, composites were created based on a Taguchi design technique. Tensile, flexural, and impact strength tests were performed on the composites, along with thickness swelling and water absorption testing and ANOVA analysis was performed for each test using Minitab. The results show that temp

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C. B, Neethu, and Y. Shibu Vardhanan. "Development of Slow-Release Fertilizer from Animal Origin Wastes: Sustainable Organic Agriculural Perspective." Current Agriculture Research Journal 11, no. 1 (2023): 69–77. http://dx.doi.org/10.12944/carj.11.1.06.

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Improved crop quality and quantity is the main target of soil fertilization in conventional agriculture. However, in organic agriculture, adding nutrients to the soil is the threshold replenishment of nutrients lost through every crop. Mineral fertilizers provide essential macro and microelements to plants for their active growth and development. Unfortunately, these kinds of fertilizers easily run off from plant vicinity because of frequent watering and rain. This leads to the recurrent application of fertilizers, which causes severe environmental problems. To resolve these issues many resear

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Hu, Lening, Rui Qin, Liming Zhou, Hua Deng, Ke Li, and Xunyang He. "Effects of Orange Peel Biochar and Cipangopaludina chinensis Shell Powder on Soil Organic Carbon Transformation in Citrus Orchards." Agronomy 13, no. 7 (2023): 1801. http://dx.doi.org/10.3390/agronomy13071801.

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In view of the continuous decline in organic carbon content in citrus orchard soil, to explore the effects of biochar and farmland waste on the transformation of organic carbon in citrus orchard soil. In this study, the soil of a citrus orchard in Yangshuo County, Guilin, Guangxi, China, was collected. The citrus peel and the Cipangopaludina chinensis shell were used as raw materials, the citrus peel was used to prepare biochar, and the Cipangopaludina chinensis shell was powdered. The materials were added to the soil in different proportions. A 30-day indoor incubation soil was conducted to i

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Li, Lefan, Zongqiang Zeng, Zhifen Wang, et al. "Effect of Oyster Shell Powder Loading on the Mechanical and Thermal Properties of Natural Rubber/Oyster Shell Composites." Polymers and Polymer Composites 25, no. 1 (2017): 17–22. http://dx.doi.org/10.1177/096739111702500103.

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The oyster shell powder/natural rubber composites were successfully prepared by blending the modified oyster shell powder with natural rubber (NR). The oyster shell powder with a particle size of 209 nm were well distributed within the rubber matrix. The characteristic Fourier transform infrared spectroscopy (FTIR) absorption bands of both oyster shell powder and natural rubber were observed in the FTIR spectra of NR/oyster shell powder composites. The C-O absorption bands in carbonates of composites exhibit a shift from 1425 cm−1 to 1446 cm−1 which suggests the bonds formed among oyster shell

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