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Relevant bibliographies by topics / Copper red

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Journal articles

Academic literature on the topic 'Copper red'

Author: Grafiati

Published: 25 May 2024

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Journal articles on the topic "Copper red"

1

Batool, Madiha, Muhammad Zahid Qureshi, Farwa Hashmi, Nida Mehboob, and Walid M. Daoush. "Adsorption of Congo Red (Acid Red 28) Azodye on Biosynthesized Copper Oxide Nanoparticles." Asian Journal of Chemistry 31, no. 3 (2019): 707–13. http://dx.doi.org/10.14233/ajchem.2019.21752.

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A green synthesis of copper oxide nanoparticles and its removal efficiency of azodye were studied. Biosynthesis of stable copper oxide nanoparticles were preformed using Aloe barbadensis leaf extract as a size and shape-directing agent for preparing of spherical copper oxide nanoparticles by calcination at 400 °C. The leaf extract of Aloe barbadensis was prepared in deionized water. The produced copper particles were calcined at 400 °C to produce copper oxide nanoparticles. The characterization of copper oxide nanoparticles was performed by XRD, SEM, FTIR, UV spectroscopy. The XRD analysis sho

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2

Lu, Xi Zhao. "Laser Micro-Jet Processing on Red Copper." Advanced Materials Research 602-604 (December 2012): 2040–44. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.2040.

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Red copper is difficult to process with laser for its high reflection rate and high density. On the contrary, with the development of Modern Laser Micro-Jet processing, the new Laser Micro-jet with 30μm and 130μm are utilized to process new area like red copper plate etc., new Laser Micro-jet with 30μm nozzle is redesigned as well as working experiment on red copper is carried out. Red copper is machining with the Laser Micro-Jet The experiment shows the methods can improve the red copper‘s machining quality, on the contrary, the result of experiment shows the new laser processing methods can

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3

Zhu, Jian, Huiping Duan, Yimin Yang, et al. "Colouration mechanism of underglaze copper-red decoration porcelain (AD 13th–14th century), China." Journal of Synchrotron Radiation 21, no. 4 (2014): 751–55. http://dx.doi.org/10.1107/s1600577514009382.

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Underglaze copper-red decoration,i.e.the copper colourant used to paint diversified patterns on the surface of a body and then covered by transparent glaze and fired at high temperature in a reductive firing environment, is famous all over the world. However, the red colouration mechanism generated by underglaze copper remains unclear. In particular, the fact that the edges of the red patterns are orange has been ignored in previous research. Here, non-destructive analysis has been carried out on a precious fragment of early underglaze red porcelain using synchrotron radiation X-ray fluorescen

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4

Mathur, R., H. Falck, E. Belogub, et al. "Origins of Chalcocite Defined by Copper Isotope Values." Geofluids 2018 (2018): 1–9. http://dx.doi.org/10.1155/2018/5854829.

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The origin of chalcocite is explored through a comparison of the copper isotope values of this mineral from supergene enrichment, sedimentary copper/red bed, and high-temperature hypogene mineralization around the world. Data from the literature and the data presented here (n=361) reveal that chalcocite from high-temperature mineralization has the tightest cluster of values of δCu65=0±0.6 in comparison to sedimentary copper/red bed δCu65=-0.9±1.0 and supergene enrichment δCu65=+1.9±1.8. Although the errors of the means overlap, large portions of the data lie in different values, allowing for d

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5

Gou, Rui Jun, and Shu Hai Zhang. "The Bifurcate Fracture Analysis of Linear Red Copper Penetrator." Advanced Materials Research 189-193 (February 2011): 213–16. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.213.

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Red copper has been widely used in shaped charge liner because of its good ductility. Red copper penetrator is the Linear Explosively Formed Penetrator (LEFP) with some length and energy which has been produced when linear red copper shaped charge liner is overturned under the effect of detonation production. Compared with some ordinary jets sword, it has some characteristics such as the broad range of stand-off, big cratering and obvious rear effect and may meet with many operating requirements in different environment. It has been discovered that the bifurcate fracture phenomenon of red copp

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6

Eo, Hye-Jin, and Byung-Ha Lee. "Coloration Characteristics of Copper Red Glaze." Korean Journal of Materials Research 23, no. 7 (2013): 399–403. http://dx.doi.org/10.3740/mrsk.2013.23.7.399.

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7

Han, Bao Jun. "Investigation of Rare-Earth Salt Refiner on Purifying Effect of Impure Red Copper." Advanced Materials Research 898 (February 2014): 436–39. http://dx.doi.org/10.4028/www.scientific.net/amr.898.436.

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A method to fabricate a new kind rare earth salt refiner for purifying impure red copper was introduced in present paper, and the application of which on deoxidization, conductivity and mechanical properties of impure red copper were also inspected by composition analysis, Scanning Electron Microscope (SEM) and mechanical properties test technologies. The effect mechanism of the rare earth salt refiner on the performance of red copper was discussed in detail in this paper.

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8

Zhou, Qingchao, Chengsi Wang, and Andy-Hsitien Shen. "Application of High-Temperature Copper Diffusion in Surface Recoloring of Faceted Labradorites." Minerals 12, no. 8 (2022): 920. http://dx.doi.org/10.3390/min12080920.

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Owing to the high market values of natural sunstones in Oregon, a kind of artificially diffused red feldspar exhibited at the Tucson Exhibition at the beginning of this century, whose color origin is the same as that of natural sunstone (copper nanoparticles). However, the details of the artificial diffusion process are less disclosed, there is no systematic method to obtain such gemstones. In this paper, we developed the high-temperature copper diffusion process for the surface recoloring of faceted labradorites, which are partly buried in the diffusant. By optimizing the experimental paramet

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9

Xue, Wei, Pierre Kennepohl, and John N. R. Ruddick. "Reacted copper(II) concentrations in earlywood and latewood of micronized copper-treated Canadian softwood species." Holzforschung 69, no. 4 (2015): 509–12. http://dx.doi.org/10.1515/hf-2014-0128.

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Abstract Electron paramagnetic resonance was used in conjunction with X-ray fluorescence spectroscopy to quantify total copper and reacted copper retentions in MCQ and MCA treated Canadian red pine sapwood and western hemlock heartwood. Total copper retentions were distinctly different between earlywood and latewood of both softwood species examined. Earlywood of red pine sapwood had higher total copper content than the latewood, while western hemlock heartwood had higher total copper contents in latewood than earlywood. The reacted copper concentrations were similar in earlywood and latewood,

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10

Shirshnev, P. S., R. M. Eremina, I. V. Yatsyk, et al. "The Electron Spin Resonance (Esr) Spectra of Potassium-Alumina-Borate Glass Doped with Copper Ions." REVIEWS ON ADVANCED MATERIALS SCIENCE 57, no. 2 (2018): 212–14. http://dx.doi.org/10.1515/rams-2018-0066.

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Abstract We investigate electron spin resonance (ESR), absorption, and photoluminescence spectra of potassium-boron copper-containing glasses. In previous works it was found, that the considered glasses demonstrate a red shift of photoluminescence. In present work, we provide an evidence on the formation in glasses specific copper-containing structures that can be responsible for the red shift of photoluminescence “copper” band.

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