Academic literature on the topic 'Nano-sized metallic calcium'

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Journal articles on the topic "Nano-sized metallic calcium"

1

Hunt, E. M., J. M. Hampikian, and N. D. Evans. "The Examination of Calcium ion Implanted Alumina with Energy Filtered Transmission Electron Microscopy." Microscopy and Microanalysis 3, S2 (1997): 413–14. http://dx.doi.org/10.1017/s1431927600008953.

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Ion implantation can be used to alter the optical response of insulators through the formation of embedded nano-sized particles. Single crystal alumina has been implanted at ambient temperature with 50 keV Ca+ to a fluence of 5 x 1016 ions/cm2. Ion channeling, Knoop microhardness measurements, and transmission electron microscopy (TEM) indicate that the alumina surface layer was amorphized by the implant. TEM also revealed nano-sized crystals ≈7 - 8 nm in diameter as seen in Figure 1. These nanocrystals are randomly oriented, and exhibit a face-centered cubic structure (FCC) with a lattice par
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2

Yang, Wen Hu, Shu Hui Yu, Rong Sun, and Ru Xu Du. "Impedance Analysis on the Percolation Mechanism of the Nickel/Calcium Copper Titanate/Polyvinylidene Fluoride Composite." Materials Science Forum 722 (June 2012): 61–70. http://dx.doi.org/10.4028/www.scientific.net/msf.722.61.

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The composites composed of micro-sized calcium copper titanate (CCTO) and nano-sized metallic nickel (Ni) fillers in the polyvinylidene fluoride (PVDF) matrix (Ni/CCTO/PVDF) were prepared, in which the filler content (volume fraction) of Ni and CCTO was set at 60 %. The impedance spectra and a serial equivalent circuit model consisting three RC units were used to investigate the behaviors of the Ni/CCTO/PVDF three-phase composite system near the percolation threshold. The real (Z′) and imaginary (Z″) parts of the impedance dramatically decreased as the Ni content was increased from 22% to 24%
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3

Fathi, Ahlam M., Howida S. Mandour, and Hanaa K. Abd El-Hamid. "Corrosion Protection of Nano-biphasic Calcium Phosphate Coating on Titanium Substrate." Current Nanoscience 16, no. 5 (2020): 779–92. http://dx.doi.org/10.2174/1573413715666191113145322.

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Background: Increasing the bioactivity of metallic implants is necessary for biomaterial applications where hydroxyapatite (HA) is used as a surface coating. In industry, HA is currently coated by plasma spraying, but this technique has a high cost and produces coating with short-term stability. Objectives: In the present study, electrophoretic deposition (EPD) was used to deposit nano-biphasic calcium phosphate compound (β-tri-calcium phosphate (β-TCP) /hydroxyapatite (HA)) bio-ceramics on the titanium surface. The microstructural, chemical compositions and bioactivity of the β- TCP/HA coatin
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4

Mallampati, Srinivasa Reddy, Byoung Ho Lee, Yoshiharu Mitoma, and Cristian Simion. "Dual mechanochemical immobilization of heavy metals and decomposition of halogenated compounds in automobile shredder residue using a nano-sized metallic calcium reagent." Environmental Science and Pollution Research 23, no. 22 (2016): 22783–92. http://dx.doi.org/10.1007/s11356-016-7458-7.

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5

Atul, Kumar Maurya, and Suresh Deshpande Atul. "Synthesis of hydroxyapatite scaffold for biomaterials applications using a PU foam." Abstracts of International Conferences & Meetings (AICM) 1, no. 5 (2021): 24. https://doi.org/10.5281/zenodo.5375937.

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<strong>Introduction: </strong>Composites materials are very essential in many form for the survival of the human life, it may be structural (1) functional or biomaterial (2). The bone and flexible cartilaginous tissues constitute human skeleton, and responsible for support and flexible body movement. Key components of the bones are made up of HAP [Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>(OH)<sub>2</sub>] crystallites deposited over collagen. Natural bones possessed a porosity of 50-90%. Four tissues which helps in constant state of remodeling of the bones named, osteoblasts, osteoclasts, o
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6

Srinivasa, Reddy Mallampati, Ho Lee Byoung, Mitoma Yoshiharu, and Cristian Simion. "Detoxification of Hazardous Organic/Inorganic Contaminants in Automobile Shredder Residue by Multi-Functioned Nano-Size Metallic Calcium Composite." June 1, 2017. https://doi.org/10.5281/zenodo.1131565.

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In recent years, environmental nanotechnology has risen to the forefront and the new properties and enhanced reactivates offered by nanomaterial may offer a new, low-cost paradigm to solving complex environmental pollution problems. This study assessed the synthesis and application of multi-functioned nano-size metallic calcium (nMC) composite for detoxification of hazardous inorganic (heavy metals (HMs)/organic chlorinated/brominated compound (CBCs) contaminants in automobile shredder residue (ASR). ASR residues ball milled with nMC composite can achieve about 90-100% of HMs immobilization an
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