Properties of copper/nano-diamond composites upon pre/post heat treatment

Rezagholi, H.; Mirjani, M.; Abdi, M.; Borji, S.

doi:10.1088/2053-1591/ab547e

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…At 2ϴ = 43.206°, the diamond-doped composite showed a significant peak. The higher intensity of peaks implies the existence of crystal orientation [19]. The interplanar distances corresponding to the three peaks were 0.209, 0.181 and 0.128 nm respectively, which are in agreement with the standard values of diamond [20].…”

Section: Microstructure Of Cu-diamond Compositessupporting

confidence: 86%

Tribological, mechanical and thermal response of diamond micro-particles reinforced copper matrix composites fabricated by powder metallurgy

Poulose

Selvakumar

Philip³

et al. 2023

Mater. Res. Express

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Copper/Diamond composites have gained a lot of attention in recent years due to their excellent thermal conductivity and their potential for use in high-power electronic devices. The current work targets on an experimental investigation of the tribological,mechanical, and thermal behaviour of copper diamond composite by using reinforced micro-diamond particles. Copper matrix composites with varying weight percentages of diamond particles were produced with the aid of the powder metallurgy. The wear tests were carried out on Pin-on-Disc wear test machine as per ASTM G99. The doping of an optimum amount of diamond particles (1% wt.) improved the overall wear performance by 51% under a normal load of 80 N. The doping had also showed a significant improvement in hardness by 26% and thermal conductivity by 1 %. The primary wear mechanisms of Cu-Diamond composites appear to be a combination of brittle fracture, fragmentation of diamond-reinforced particles and ploughing in the Cu-alloy matrix.

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Section: Microstructure Of Cu-diamond Compositessupporting

confidence: 86%

Tribological, mechanical and thermal response of diamond micro-particles reinforced copper matrix composites fabricated by powder metallurgy

Poulose

Selvakumar

Philip³

et al. 2023

Mater. Res. Express

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“…The mechanical properties of active-intelligent lms including thickness, tensile strength, and elongation are reported in Table 2 a. Active-intelligent lms indicated excellent mechanical properties as food packaging, which can be caused by the usage of quantum dots and natural compounds like mucilage. Adding calcium chloride as a crosslinker can also be considered another effective factor, as it can improve the tensile strength of all treatments by involvement of the carboxyl functional group with calcium (bt Ibrahim et al, 2019; Girón-Hernández et al, 2021; Rezagholi et al, 2019). The thickness of the prepared lms ranged from 0.0059 to 0.0061 mm in which the lowest one was related to treatment B and the highest one was correlated to treatment A and D. In terms of tensile strength, there was a signi cant difference between the samples containing urea and sh gelatin quantum dots and the control sample (P<0.05), so that the highest tensile strength was observed in treatments C (62.8±1.41%) and D (62.8±1.82%) while the lowest one was related to the control (14.8±0.87%).…”

Section: Resultsmentioning

confidence: 99%

Decorated active-intelligent film using urea and fish gelatin quantum dots for improving and detecting the quality of chilled trout fillets

Zarei,

Rezaei,

Bahramifar

et al. 2024

Preprint

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In this study, an active-intelligent film was created by adding urea and fish gelatin quantum dots along with the mucilage, aiming at improving and monitoring the microbial and chemical quality of trout fillets during chilled storage. Fish gelatin and urea quantum dots were successfully synthesized using microwave and low-heat methods. Enriching the alginate film to quantum dots and mucilage resulted in superior mechanical characteristic including thickness (0.0061 ± 0.072 mm), tensile strength (62.8 ± 1.41%), and elongation (35 ± 1.04%) while decreasing some physical properties like solubility (73 ± 5.14%) and water vapor permeability (1.1 ± 0.49 g/m− 2 s− 1). Treatments containing quantum dots indicated inferior transparency and an excellent ability in blocking UV light. The FTIR functional groups proved the presence of film compounds. An uneven surface and weaker crystallinity structure were observed in treatments containing mucilage, recorded by FESEM and XRD. Adding gelatin quantum dots and mucilage led to the lowest level of total (8.4 ± 1 CFU/g− 1), psychrophilic (5.4 ± 1 CFU/g− 1), and H2S-producing (7 ± 1 CFU/g− 1) bacteria after 16 days. Additionally, the lowest level of pH (7.7 ± 0.09), TVB-N (76.6 ± 0.47%), PV (7.48 ± 0.68%), TBA (0.94 ± 0.06), and FFA (1.13 ± 0.004%) were observed in gelatin quantum dots and mucilage contained treatment. After 8 days, the fluorescence intensity of films enhanced due to the increasing level of bacteria. The changes in microbial and chemical indexes were perfectly detected by increasing the fluorescence and color changes of produced films. The active-intelligent films are introduced as a novel potential packaging for prolonging the shelf life along with monitoring the freshness of food.

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“…Rezagholi et al [34] proposed that the amount of diamond particles in the composite matters a lot. Micro-hardness can be increased by adding a high percentage of nano diamond addition, resulting in finer grains.…”

Section: Corrosion Behaviourmentioning

confidence: 99%

Study of the Mechanical Properties of the Copper Matrix Composites (CMCs): A Review

Poulose¹,

Selvakumar²,

Philip³

et al. 2022

MSF

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Copper matrix composites (CMCs) are known to be lightweight and possess competent mechanical properties, hence is highly suitable for a broad range of advanced applications. Its significance in aerospace, marine, and structural domains make it worthwhile to be investigatedfor low-cost manufacturing and selection of appropriate reinforcements. A comprehensive understanding of CMCs in terms of its fabrication methodologies and the diverse properties achievable through the incorporation of discrete reinforcement materials are essential to beexplored. Given, this manuscript evaluates the distinct methodologies for the preparation of CMCs through various fabrication routes. Besides, the substantial improvement/variation in properties such as mechanical (strength, toughness, hardness and creep), metallurgical (microstructure, grain size and grain boundaries), thermal properties (thermal conductivity, coefficient of thermal expansion) and tribological properties (friction, wear) through the incorporation of reinforcements (additives/filler materials/adhesives) of CMCs also is brought under detailed discussion.

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Properties of copper/nano-diamond composites upon pre/post heat treatment

Cited by 5 publications

References 24 publications

Tribological, mechanical and thermal response of diamond micro-particles reinforced copper matrix composites fabricated by powder metallurgy

Tribological, mechanical and thermal response of diamond micro-particles reinforced copper matrix composites fabricated by powder metallurgy

Decorated active-intelligent film using urea and fish gelatin quantum dots for improving and detecting the quality of chilled trout fillets

Study of the Mechanical Properties of the Copper Matrix Composites (CMCs): A Review

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