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Journal articles on the topic 'Magnesium fluoride crystals'

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1

Zhang, Chun-Yan, Hao-Lan Fang, Xin-Peng Liu, Fan-Cheng Meng, Zhong-Qing Tian, and Hui-Nan Liu. "Hydrothermal Growth of Nano-Hydroxyapatite Coating Formed on Fluorinated Magnesium Alloy and Its Corrosion Behaviour." Science of Advanced Materials 13, no. 1 (2021): 10–19. http://dx.doi.org/10.1166/sam.2021.3842.

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In order to explore the hydrothermal growth mechanism of hydroxyapatite (HA) coating on fluorinated magnesium alloy, the changes of morphology, composition and crystal phase of the calcium phosphate coating during the hydrothermal treatment were studied. And the change of electrochemical impedance spectroscopy (EIS) of the coating specimen of different hydrothermal treatment time was discussed to further understanding the change of the coating structure. The results demonstrated that calcium phosphate could rapidly nucleate on fluorinated AZ31 magnesium alloy. The crystal phase of calcium phos
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2

Lizzo, S., A. Meijerink, G. J. Dirksen, and G. Blasse. "Luminescence of divalent ytterbium in magnesium fluoride crystals." Journal of Luminescence 63, no. 5-6 (1995): 223–34. http://dx.doi.org/10.1016/0022-2313(94)00085-q.

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3

Lizzo, S., A. H. Velders, A. Meijerink, G. J. Dirksen, and G. Blasse. "The luminescence of Eu2+ in magnesium fluoride crystals." Journal of Luminescence 65, no. 6 (1995): 303–11. http://dx.doi.org/10.1016/0022-2313(95)00080-1.

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4

Angappan, S., N. Kalaiselvi, R. Sudha, and A. Visuvasam. "Electrochemical Synthesis of Magnesium Hexaboride by Molten Salt Technique." International Scholarly Research Notices 2014 (August 31, 2014): 1–6. http://dx.doi.org/10.1155/2014/123194.

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The present work reports electrochemical synthesis of MgB6 from molten salts using the precursor consists of LiF–B2O3–MgCl2. An attempt has been made to synthesize metastable phase MgB6 crystal by electrolysis method. DTA/TGA studies were made to determine the eutectic point of the melt and it was found to be around 900°C. The electrolysis was performed at 900°C under argon atmosphere, at current density of 1.5 A/cm2. The electrodeposited crystals were examined using XRD, SEM, and XPS. From the above studies, the electrochemical synthesis method for hypothetical MgB6 from chloro-oxy-fluoride m
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5

Okazaki, M., and R. Z. Legeros. "Properties of Heterogeneous Apatites Containing Magnesium, Fluoride, and Carbonate." Advances in Dental Research 10, no. 2 (1996): 252–59. http://dx.doi.org/10.1177/08959374960100022201.

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Biological apatites present in the mineral phases of normal and pathological calcifications contain magnesium, Mg, and carbonate, CO3. As a consequence of fluctuations in the composition of the micro-environment, these apatites may sometimes form by heterogeneous precipitation. The purpose of this study was to investigate the properties of (Mg, CO3)-apatites formed heterogeneously in the presence of fluoride, F. Two types of fluoridated (Mg, CO3)-apatites formed from solutions with low and high levels of Mg were prepared at 80°C, pH 7.4. We prepared FMgCO3-MgCO 3AP (Type 1) by adding the F-con
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6

Unosson, Erik, Daniel Feldt, Wei Xia, and Håkan Engqvist. "Amorphous Calcium Magnesium Fluoride Phosphate—Novel Material for Mineralization in Preventive Dentistry." Applied Sciences 13, no. 10 (2023): 6298. http://dx.doi.org/10.3390/app13106298.

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This paper describes novel and innovative amorphous calcium magnesium fluoride phosphate (ACMFP) core-shell microparticles that may be applied in preventive dentistry for the prevention of caries and the treatment of dentin hypersensitivity. The particles can be synthesized with varied fluoride content, up to approximately 6 wt%, without any observable differences in morphology or crystallinity. Fluoride release from the particles is correlated to the fluoride content, and the particles are readily converted to fluoride-substituted hydroxyapatite or fluorapatite in a simulated saliva solution.
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7

Wang, Xiu Hui, Sheng Bo Lu, Cheng Min Wang, and Hong Bo Yu. "Low Temperature Synthesis of Magnesium Aluminate Spinel from AlOOH and MgO Powder." Advanced Materials Research 79-82 (August 2009): 1811–14. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.1811.

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Ultrafine MgAl2O4 powders have been successfully synthesized by solid-state reaction from the mixture of AlOOH and MgO at the lower temperature. The samples were investigated by DTA/TG、XRD and SEM analyses. The results showed that AlOOH can be decomposed into γ-Al2O3 from DG/TDA curves, which can improve the activity of Al2O3 and promote the process of solid-state reaction. The XRD analysis showed the single-phase MgAl2O4 was formed at 1400°C. Meanwhile it was detected by ICP-MS that the purity of powders was 99.995%. The SEM images showed that the mineralizer containing fluoride such as AlF3,
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8

Arshad, A. N., M. H. M. Wahid, M. Rusop, W. H. A. Majid, R. H. Y. Subban, and M. D. Rozana. "Dielectric and Structural Properties of Poly(vinylidene fluoride) (PVDF) and Poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) Filled with Magnesium Oxide Nanofillers." Journal of Nanomaterials 2019 (April 21, 2019): 1–12. http://dx.doi.org/10.1155/2019/5961563.

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This study examines the dielectric properties of filled PVDF film and filled PVDF-TrFE film incorporated with 1, 3, 5, and 7 weight percentages of magnesium oxide (MgO) nanofillers. The metal-insulator-metal (MIM) configuration demonstrates PVDF/MgO with 7 weight percent of MgO which produced high dielectric constant (1 kHz) with low dielectric loss. The ATR-FTIR spectra of PVDF/MgO (7%) indicate wide bonding peaks at 840 cm-1 and 880 cm-1, assigned to -CH2 and -CF2 groups, respectively. This implies the presence of high content of β-crystals in the PVDF/MgO (7%) film. A shift in the peak was
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9

Pimon, Martin, Johannes Gugler, Peter Mohn, Georgy Kazakov, Norbert Mauser, and Thorsten Schumm. "DFT calculation of 229thorium-doped magnesium fluoride for nuclear laser spectroscopy." Journal of Physics: Condensed Matter 32, no. 25 (2020): 9. https://doi.org/10.1088/1361-648X/ab7c90.

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Abstract The&nbsp;<sup>229</sup>thorium nucleus has an extremely low-energy isomeric state that could be manipulated with light in the vacuum ultraviolet (VUV) range. Recent measurements based on internal conversion electrons place the isomer energy at 8.28(17) eV (Seiferle B&nbsp;<em>et al</em>&nbsp;2019), within the transmission window of large-band-gap materials, such as fluoride single crystals. Doping&nbsp;<sup>229</sup>Th into VUV-transparent materials realizes a spectroscopy target with a high nuclei density and might form the basis of a solid-state nuclear clock. This paper presents a
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10

Voloshinov, Vitaly B., and Neelam Gupta. "Investigation of magnesium fluoride crystals for imaging acousto-optic tunable filter applications." Applied Optics 45, no. 13 (2006): 3127. http://dx.doi.org/10.1364/ao.45.003127.

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11

Hamdona, Samia K., Manal M. Seif, and Salem M. Hamza. "Dissolution of magnesium fluoride crystals in the presence of some minerals salts." Desalination 133, no. 3 (2001): 205–10. http://dx.doi.org/10.1016/s0011-9164(01)00100-x.

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12

Al-Busaidi, Hamed, Md Karim, Syafiq Abidin, Kyi Tha, and Ezharul Chowdhury. "Magnesium Fluoride Forms Unique Protein Corona for Efficient Delivery of Doxorubicin into Breast Cancer Cells." Toxics 7, no. 1 (2019): 10. http://dx.doi.org/10.3390/toxics7010010.

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Background: The efficacy of chemotherapy is undermined by adverse side effects and chemoresistance of target tissues. Developing a drug delivery system can reduce off-target side effects and increase the efficacy of drugs by increasing their accumulation in target tissues. Inorganic salts have several advantages over other drug delivery vectors in that they are non-carcinogenic and less immunogenic than viral vectors and have a higher loading capacity and better controlled release than lipid and polymer vectors. Methods: MgF2 crystals were fabricated by mixing 20 mM MgCl2 and 10 mM NaF and inc
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13

Beck, Kenneth M., Alan G. Joly, and Wayne P. Hess. "Time-resolved femtosecond laser-induced desorption from magnesium oxide and lithium fluoride single crystals." Surface Science 451, no. 1-3 (2000): 166–73. http://dx.doi.org/10.1016/s0039-6028(00)00023-6.

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14

Kuzhakov, P. V., and N. V. Kamanina. "Spectral investigations and wettability of nanostructured potassium bromide, sodium chloride, and magnesium fluoride single crystals." Optics and Spectroscopy 117, no. 4 (2014): 643–46. http://dx.doi.org/10.1134/s0030400x14100130.

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15

Teerakanok, Supontep, Minglei Zhao, Russell Giordano, and Yuwei Fan. "Interaction of doped magnesium, zinc and fluoride ions on hydroxyapatite crystals grown on etched human enamel." Journal of Crystal Growth 571 (October 2021): 126262. http://dx.doi.org/10.1016/j.jcrysgro.2021.126262.

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16

Bryukvina, Lyubov. "Features of propagation of the high-intensity femtosecond laser pulses in magnesium and sodium fluoride crystals." Journal of Luminescence 162 (June 2015): 145–48. http://dx.doi.org/10.1016/j.jlumin.2015.02.008.

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17

Guo, J. H., D. X. Fu, J. B. Han, Z. H. Ji, Y. S. Wang, and T. A. Zhang. "The effect of calcium fluoride on extracting magnesium from magnesite and calcium carbonate by silicothermal reduction in flowing argon." Journal of Mining and Metallurgy, Section B: Metallurgy 58, no. 1 (2022): 19–28. http://dx.doi.org/10.2298/jmmb210318045g.

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At present, the production of magnesium is mainly carried out semi-continuously with ferrosilicon as reducing agent under high temperature and high vacuum. In order to continuously produce magnesium, a new method of extracting magnesium from low-grade magnesite and calcium carbonate by silicothermal method in flowing inert gas was proposed. The effects of calcium fluoride (CaF2) on decomposition rate, decomposition kinetics, reduction rate of magnesia, and crystal type of dicalcium silicate in reduction slag were investigated in the paper. The experimental results showed that calcium fluoride
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18

Abe, Kazuhiro, Kazutoshi Tani, and Yoshinori Fujiyoshi. "Systematic Comparison of Molecular Conformations of H+,K+-ATPase Reveals an Important Contribution of the A-M2 Linker for the Luminal Gating." Journal of Biological Chemistry 289, no. 44 (2014): 30590–601. http://dx.doi.org/10.1074/jbc.m114.584623.

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Gastric H+,K+-ATPase, an ATP-driven proton pump responsible for gastric acidification, is a molecular target for anti-ulcer drugs. Here we show its cryo-electron microscopy (EM) structure in an E2P analog state, bound to magnesium fluoride (MgF), and its K+-competitive antagonist SCH28080, determined at 7 Å resolution by electron crystallography of two-dimensional crystals. Systematic comparison with other E2P-related cryo-EM structures revealed that the molecular conformation in the (SCH)E2·MgF state is remarkably distinguishable. Although the azimuthal position of the A domain of the (SCH)E2
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19

Gaffar, A., R. Z. Legeros, R. J. Gambogi, and J. Affutto. "Inhibition of Formation of Calcium Phosphate Deposits on Teeth and Dental Materials: Recent Advances." Advances in Dental Research 9, no. 4 (1995): 419–26. http://dx.doi.org/10.1177/08959374950090041201.

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The inorganic composition of dental calculi from teeth and dentures has been characterized by x-ray diffraction, electron microprobe, and infrared absorption spectroscopy. They consist of carbonated hydroxylapatite (CHA), dicalcium phosphate dihydrate (DCPD), octacalcium phosphate (OCP), and magnesium-substituted beta-tricalcium phosphate (6-TCMP). The calculi on denture surfaces are principally CHA. Formulations have been developed to inhibit formation of these calculi in humans. The active inhibitors are pyrophosphate, pyrophosphate plus polymer, and zinc salts. These agents inhibit calculus
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20

Bryukvina, Lyubov. "Reply to the comment on “Features of propagation of high-intensity laser pulses in magnesium and sodium fluoride crystals”." Journal of Luminescence 171 (March 2016): 265. http://dx.doi.org/10.1016/j.jlumin.2015.10.018.

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21

Scheurell, Kerstin, and Erhard Kemnitz. "Fluorolytic Sol–Gel Synthesis of Nanometal Fluorides: Accessing New Materials for Optical Applications." Inorganics 6, no. 4 (2018): 128. http://dx.doi.org/10.3390/inorganics6040128.

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The potential of fluorolytic sol–gel synthesis for a wide variety of applications in the field of optical materials is reviewed. Based on the fluorolytic sol–gel synthesis of nanometal fluorides, sols of complex fluorometalates have become available that exhibit superior optical properties over known classical binary metal fluorides as, for instance, magnesium fluoride, calcium fluoride, or strontium fluoride, respectively. The synthesis of transparent sols of magnesium fluoroaluminates of the general composition MgxAlFy, and fluoroperovskites, [K1−xNax]MgF3, is reported. Antireflective coatin
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22

Martynovich, E. F., S. A. Zilov, V. P. Dresvianskii, et al. "Comment on “Features of propagation of high-intensity laser pulses in Magnesium and Sodium fluoride crystals” by L. Bryukvina, Journal of Luminescence, 162 (2015) 145–148." Journal of Luminescence 171 (March 2016): 259–64. http://dx.doi.org/10.1016/j.jlumin.2015.10.017.

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23

Lisitsyn, V. M., V. A. Vaganov, G. K. Alpyssova, et al. "RADIATION SYNTHESIS OF BARIUM MAGNESIUM FLUORIDE ACTIVATED BY TUNGSTEN CERAMICS: STRUCTURE AND LUMINESCENCE." Eurasian Physical Technical Journal 21, no. 4(50) (2024): 35–48. https://doi.org/10.31489/2024no4/35-48.

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In the work on the example of barium magnesium fluoride activated by tungsten system the existence of possibility of introduction of activators, modifiers into the formed ceramics are shown. Using unique properties of radiation synthesis of high synthesis rate is happened. The possibility of synthesis of magnesium fluoride activated by tungsten, barium fluoride activated by tungsten and barium magnesium fluoride activated by tungsten ceramics by impact on the charge of a stream of electrons with energy 1.4 MeV with power density 15 kW/cm2 is shown. The X-ray diffraction, photoexcitation and lu
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24

Kim, Hakkwan, and Alexander H. King. "Control of porosity in fluoride thin films prepared by vapor deposition." Journal of Materials Research 22, no. 7 (2007): 2012–16. http://dx.doi.org/10.1557/jmr.2007.0225.

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We have measured the porosity in thin films of lithium fluoride (LiF), magnesium fluoride (MgF2), barium fluoride (BaF2), and calcium fluoride (CaF2) as a function of the substrate temperature for films deposited by thermal evaporation onto glass substrates. The amount of porosity in the thin films was measured using an atomic force microscope and a quartz crystal thickness monitor. The porosity was very sensitive to the substrate temperature and decreased as the substrate temperature increased. Consistent behavior was observed among all of the materials in this study.
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25

Barker, J. G., D. F. R. Mildner, J. A. Rodriguez, and P. Thiyagarajan. "Neutron transmission of single-crystal magnesium fluoride." Journal of Applied Crystallography 41, no. 6 (2008): 1003–8. http://dx.doi.org/10.1107/s0021889808032858.

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The neutron attenuation through single-crystal magnesium fluoride has been measured as a function of wavelength at both room temperature and 77 K. These data confirm a total cross section that is lower than that of MgO for wavelengths greater than 0.2 nm. MgF2cooled to 77 K is a slightly better filter of epithermal neutrons than MgO for obtaining a thermal neutron beam.
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26

Adib, M., N. Habib, I. Bashter, et al. "Neutron characteristics of single-crystal magnesium fluoride." Annals of Nuclear Energy 60 (October 2013): 163–71. http://dx.doi.org/10.1016/j.anucene.2013.04.024.

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27

Zhong, Shao Yan, Mao Fa Jiang, and Hai Tao Xu. "Study on Magnesium Metal Preparing by Serpentine Carbon-Thermal Reduction Reaction." Advanced Materials Research 347-353 (October 2011): 1180–83. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1180.

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Metallic magnesium is prepared with serpentine breeze in vacuum induction furnace by adding calcium fluoride. In the furnace, the vacuum degree should be controlled at 500Pa, while the temperature needs to be heated to 700°C and keep the temperature for 60min in order to dewater the crystal water; And then continue to rise the temperature to 1500°C and keep the temperature for 60min which can deoxidize the element Fe and Ni in the serpentine breeze to metallic iron and metallic nickel, while metallic magnesium become vapor magnesium and then crystal to metallic magnesium at the condenser. Meta
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28

Kitamura, Yuta, Noriyuki Miyazaki, Toshiro Mabuchi, and Teruhiko Nawata. "Birefringence simulation of annealed ingot of magnesium fluoride single crystal." Journal of Crystal Growth 311, no. 15 (2009): 3954–62. http://dx.doi.org/10.1016/j.jcrysgro.2009.06.026.

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29

Chang, Chen Shen, Min Hsiung Hon та Sheng Jenn Yang. "The optical properties of hot-pressed magnesium fluoride and single-crystal magnesium fluoride in the 0.1 to 9.0 μm range". Journal of Materials Science 26, № 6 (1991): 1627–30. http://dx.doi.org/10.1007/bf00544673.

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30

Al-Qasir, Iyad, and Abdallah Qteish. "Neutron filter efficiency of beryllium and magnesium fluorides." Journal of Applied Crystallography 50, no. 2 (2017): 441–50. http://dx.doi.org/10.1107/s1600576717000851.

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The neutron filter efficiency of MgF2 and BeF2 has been investigated as a function of neutron incident energy at different temperatures, starting from the phonon density of states (PDOS) calculated using first-principles techniques, and the results are compared with those of MgO and BeO. Recently, MgF2 has been suggested as a neutron filter and neutron transmission through it has been experimentally studied. For MgF2, excellent agreement between calculated and available experimental data has been achieved for the phonon dispersion relations, constant-volume specific heat, inelastic scattering
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31

Hanh, Vo Thi, Pham Thi Nam, Nguyen Thu Phuong, and Dinh Thi Mai Thanh. "ELECTRODEPOSITION OF CO-DOPED HYDROXYAPATITE COATING ON 316L STAINLESS STEEL." Vietnam Journal of Science and Technology 56, no. 1 (2018): 94. http://dx.doi.org/10.15625/2525-2518/56/1/10030.

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Hydroxyapatite (HAp) co-doped by magnesium (Mg), strontium (Sr), sodium (Na) and fluorine (F) were deposited on the 316L stainless steel (316L SS) substrate by electrodeposition method. The influences of scanning potential ranges, scanning times, scanning rates to form MgSrFNaHAp coating were investigated. The analytical results FTIR, SEM, Xray, EDX, thickness and adhension of the obtained coating at scanning potential ranges of 0 ÷ -1.7 V/SCE; scaning times of 5, scanning rate of 5 mV/s showed that MgSrFNaHAp coatings were single phase crystals of HAp, rod shape with the thickness 8.9 µm and
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32

Ghanbari, Ashkan, Alireza Kashaninia, Ali Sadr, and Hamed Saghaei. "Supercontinuum generation for optical coherence tomography using magnesium fluoride photonic crystal fiber." Optik 140 (July 2017): 545–54. http://dx.doi.org/10.1016/j.ijleo.2017.04.099.

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33

Robinson, M., and L. G. DeShazer. "Crystal growth of cobalt and nickel doped magnesium fluoride by the czochralski method." Journal of Crystal Growth 71, no. 1 (1985): 95–98. http://dx.doi.org/10.1016/0022-0248(85)90047-8.

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34

Hu, Chang Sheng, and Xi Wang. "Using Red Mud Manufacturing Building Glass-Ceramics." Applied Mechanics and Materials 423-426 (September 2013): 1014–17. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1014.

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In this paper, red mud of aluminum industrial residue has been studied to make the glass-ceramic, quartz sand, magnesite, fluorite and red mud was mixed to melt, molten glass was poured into the model in shape, then annealing, glass-ceramic was make, the color of glass-ceramic is brown or black, the crystals in glass-ceramic body is iron oxide by XRD, Strength, the expansion coefficient and morphology of the sample were measured. Glass surface color depends on the melting temperature.
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35

Sava, Bogdan Alexandru, Adriana Diaconu, Luminita Daniela Ursu, et al. "Ecological Silicate Glasses." Advanced Materials Research 39-40 (April 2008): 667–70. http://dx.doi.org/10.4028/www.scientific.net/amr.39-40.667.

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The investigated ecological glasses with no toxic compounds, such as BaO, PbO, As2O3, As2O5, fluorine, CdS and CdSe in their composition are located in ternary and quaternary oxide systems: ZnO-SiO2-TiO2 and SiO2-R'2O-R''O-R'''O2, where R' is Na or K, R'' is Ca or Mg and R''' is Zr or Ti. The first system contains P2O5, ZnO and TiO2 in order to obtain opal glasses, without fluorine compounds. The second system replaces the barium oxide and lead oxide with potassium, magnesium, zirconium and titanium oxides, for materials like lead free crystals. The raw materials can be replaced by silicate or
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36

Pekov, Igor V., Natalia V. Zubkova, Ilya I. Chaikovskiy, et al. "Krasnoshteinite, Al8[B2O4(OH)2](OH)16Cl4⋅7H2O, a New Microporous Mineral with a Novel Type of Borate Polyanion." Crystals 10, no. 4 (2020): 301. http://dx.doi.org/10.3390/cryst10040301.

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A new mineral, krasnoshteinite (Al8[B2O4(OH)2](OH)16Cl4⋅7H2O), was found in the Verkhnekamskoe potassium salt deposit, Perm Krai, Western Urals, Russia. It occurs as transparent colourless tabular to lamellar crystals embedded up to 0.06 x 0.25 x 0.3 mm in halite-carnallite rock and is associated with dritsite, dolomite, magnesite, quartz, baryte, kaolinite, potassic feldspar, congolite, members of the goyazite–woodhouseite series, fluorite, hematite, and anatase. Dmeas = 2.11 (1) and Dcalc = 2.115 g/cm3. Krasnoshteinite is optically biaxial (+), α = 1.563 (2), β = 1.565 (2), γ = 1.574 (2), an
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37

Zhu, Deng Chao, Yi Fan Dai, Chao Liang Guan, Gui Lin Wang, and Gui Peng Tie. "In Situ Measurement and Compensation Turning Technique of Deep MgF2 Conformal Dome." Advanced Materials Research 1027 (October 2014): 136–39. http://dx.doi.org/10.4028/www.scientific.net/amr.1027.136.

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The adoption of conformal optics system can evidently improve the synthetical performance of infrared missiles. Hot-pressing poly-crystal magnesium fluoride (MgF2) is an ideal material for conformal optics dome. But many problems about machining and surface test of deep aspheric surface have not been solved at present, and there is not much research about the machining characteristics of MgF2 material. In this paper, in-situ measurement system is designed, so positional errors that introduced by repeating installation can be avoided. Then, machining process of MgF2 material by single point dia
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38

Hamza, Salem M., A. Abdul-Rahman, and G. H. Nancollas. "The influence of magnesium ion on the kinetics of crystal growth and dissolution of strontium fluoride." Journal of Crystal Growth 73, no. 2 (1985): 245–50. http://dx.doi.org/10.1016/0022-0248(85)90300-8.

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39

Kozyrev, N. A., I. V. Osetkovskii, A. A. Usol’tsev, E. V. Polevoi та A. R. Mikhno. "Composition of non-metallic inclusions and microstructure of electric arc coating formed using the flux-cored wire of Fe – C – Si – Mn – Сr – Ni – Mo system". Izvestiya. Ferrous Metallurgy 65, № 6 (2022): 421–26. http://dx.doi.org/10.17073/0368-0797-2022-6-421-426.

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The article considers the study of composition of the non-metallic inclusions and microstructure of the electric arc coating using the flux-cored wire of Fe – C – Si – Mn – Cr – Ni – Mo system. Formation of the electric arc coating was carried out using the ASAW-1250 automatic arc welding machine by the investigated wire. In order to influence the level of contamination of the deposited metal with non-metallic oxide inclusions, aluminum gas purification dust was introduced into the flux-cored wire (instead of amorphous carbon). Composition of the electric arc coating was determined using XRF-1
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40

Kim, Iee-Gon, Hong-Gyu Park, Jae-Jun Han, Jeong-Min Han, and Dae-Shik Seo. "Application of Magnesium Fluoride $(\hbox{MgF}_{2})$ Thin Films for Liquid Crystal Alignment Using Ion-Beam Irradiation." IEEE Electron Device Letters 34, no. 2 (2013): 283–85. http://dx.doi.org/10.1109/led.2012.2230608.

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41

Mikhailova, Julia A., Yakov A. Pakhomovsky, Ekaterina A. Selivanova, and Alena A. Kompanchenko. "Polymineralic Inclusions in Loparite-(Ce) from the Lovozero Alkaline Massif (Kola Peninsula, Russia): Hydrothermal Association in Miniature." Minerals 13, no. 6 (2023): 715. http://dx.doi.org/10.3390/min13060715.

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Polymineralic inclusions in loparite-(Ce) in alkaline rocks from the Lovozero massif (Russia) were investigated using electron microprobe analysis, Raman spectroscopy, and X-ray diffraction. A total of 21 mineral species and two groups of minerals (pyrochlore- and labuntsovite-group minerals) were found in these inclusions. Minerals in loparite-hosted inclusions can be divided into two groups: (1) minerals found typically in rocks bearing loparite-(Ce) grains (groundmass minerals) such as aegirine, magnesio-arfvedsonite, potassic feldspar, albite, fluorapatite, etc.; and (2) minerals that were
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Lacalamita, M., G. Balassone, E. Schingaro, et al. "Fluorophlogopite-bearing and carbonate metamorphosed xenoliths from theCampanian Ignimbrite (Fiano, southern Italy): crystal chemical, geochemical and volcanological insights." Mineralogical Magazine 81, no. 5 (2017): 1165–89. http://dx.doi.org/10.1180/minmag.2016.080.155.

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AbstractFluorine-, boron- and magnesium-rich metamorphosed xenoliths occur in the Campanian Ignimbrite deposits at Fiano (southern Italy), at ∼50 km northeast of the sourced volcanic area. These rocks originated from Mesozoic limestones of the Campanian Apennines, embedded in a fluid flow. The Fiano xenoliths studied consist of ten fluorophlogopite-bearing calc-silicate rocks and five carbonate xenoliths, characterized by combining mineralogical analyses with whole-rock and stable isotope data. The micaceous xenoliths are composed of abundant idiomorphic fluorophlogopite, widespread fluorite,
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Ahmed, Kawsar, Mohammed AlZain, Hasan Abdullah, et al. "Highly Sensitive Twin Resonance Coupling Refractive Index Sensor Based on Gold- and MgF2-Coated Nano Metal Films." Biosensors 11, no. 4 (2021): 104. http://dx.doi.org/10.3390/bios11040104.

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A plasmonic material-coated circular-shaped photonic crystal fiber (C-PCF) sensor based on surface plasmon resonance (SPR) is proposed to explore the optical guiding performance of the refractive index (RI) sensing at 1.7–3.7 μm. A twin resonance coupling profile is observed by selectively infiltrating liquid using finite element method (FEM). A nano-ring gold layer with a magnesium fluoride (MgF2) coating and fused silica are used as plasmonic and base material, respectively, that help to achieve maximum sensing performance. RI analytes are highly sensitive to SPR and are injected into the ou
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Ibrahim, I. S., T. A. Bykov, I. A. Kolesnikov, et al. "Dosimetry of Neutron Flow and Gamma-Radiation for two Neutron Beam Shaping Assembly at the VITA Facility using a Scintillator Detector." SIBERIAN JOURNAL OF PHYSICS 18, no. 4 (2024): 71–78. http://dx.doi.org/10.25205/2541-9447-2023-18-4-71-78.

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The BNCT method is considered one of the promising methods of external beam therapy in the treatment of radioresistant tumors such as glioblastoma, melanoma and others, which selectively destroy cancer cells due to previous accumulations of boron-10 isotopes stable inside them, and subsequent irradiation with epithermal neutrons. As a result of neutron capture by boron, nuclear radiation interacts with the release of a large amount of energy (charged particles with a high linear energy transfer), which leads to the destruction of the cancer cell. This method is distinguished by a short number
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Dashtban, Zahra, Mohammad Reza Salehi, and Ebrahim Abiri. "High sensitivity all-optical sensor for detecting toxic gases using hollow-core photonic crystal fiber composed of magnesium fluoride." Optical Fiber Technology 72 (September 2022): 102958. http://dx.doi.org/10.1016/j.yofte.2022.102958.

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YANG, Yu, Lei ZHANG, and Keyi WANG. "Research on generating broad-spectrum Kerr optical frequency comb and dispersion control based on magnesium fluoride crystal micro-resonator." Optics and Precision Engineering 30, no. 4 (2022): 403–10. http://dx.doi.org/10.37188/ope.20223004.0403.

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Zhang, Gong, Xiuhua Fu, Shigeng Song, Kai Guo, and Jing Zhang. "Influences of Oxygen Ion Beam on the Properties of Magnesium Fluoride Thin Film Deposited Using Electron Beam Evaporation Deposition." Coatings 9, no. 12 (2019): 834. http://dx.doi.org/10.3390/coatings9120834.

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Magnesium fluoride (MgF2) materials are commonly used for near/medium infrared anti-reflection optical coatings due to their low refractive index and wide-range transparency. Ion assistant deposition is an important technique to increase the density of MgF2 and reduce absorption around 2.94 µm caused by high porosity and moisture adsorption. However, the excessive energy of Argon ion will induce a color center and; therefore, lead to UV/Visible absorption. In this paper, oxygen ion was introduced to reduce the color center effect in MgF2 thin film deposited using electron beam evaporation with
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Marszałek, Konstanty, Paweł Winkowski, and Marta Marszałek. "Antireflective bilayer coatings based on Al2O3 film for UV region." Materials Science-Poland 33, no. 1 (2015): 6–10. http://dx.doi.org/10.1515/msp-2015-0011.

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AbstractBilayer antireflective coatings consisting of aluminium oxide Al2O3/MgF2 and Al2O3/SiO2 are presented in this paper. Oxide films were deposited by means of e-gun evaporation in vacuum of 5 × 10-3 Pa in the presence of oxygen, and magnesium fluoride was prepared by thermal evaporation on heated optical lenses made from quartz glass (Corning HPFS). Substrate temperature was maintained at 250 _C during the deposition. Thickness and deposition rate were controlled with a thickness measuring system Inficon XTC/2. The experimental results of the optical measurements carried out during and af
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Litvinenko, A. K., E. I. Romanova, and O. A. Yakushina. "Genetic features of tourmaline from the magnesian skarns of Kuhilal deposit, Southwestern Pamir." Proceedings of higher educational establishments. Geology and Exploration, no. 2 (June 20, 2023): 56–66. http://dx.doi.org/10.32454/0016-7762-2023-65-2-56-66.

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Background. Although the Kuhilal deposit of Mg skarns has been thoroughly studied, tourmaline in their composition has never been considered [5, 6, 16]. Uvite, a tourmaline variety, was mentioned in the list of rare minerals only with its crystallochemical formula [17]. L.N. Shabynin, a great connoisseur of skarns, noted the rarity of tourmaline in Mg skarns of various deposits. Tourmaline of this type is characterized by a strong variation in ferruginosity and a significant content of Ca. At the same time, Ca:Na varies from 2:3 to 20:1 [15]. According to N.N. Pertsev, another major specialist
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van Eenbergen, Ad, and Bernd Volbert. "Layered Synthetic Microstructures in Sequential and Simultaneous X-Ray Spectrometry." Advances in X-ray Analysis 30 (1986): 201–11. http://dx.doi.org/10.1154/s0376030800021303.

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SummaryFor many years Layered Synthetic Microstructures (LSM's) have been used successfully as dispersive devices. The commercial variety introduced in 1984 offered significantly greater stability and diffracted intensity characteristics over Thallium Acid Phthalate (TAP) crystals. These devices offer superior sensitivity for fluorine, sodium and magnesium in all but a few applications where resolution is very critical. Subsequently, a variety of these devices have been optimised for analysis of the lower atomic number elements.Recently, several industrial applications have required the develo
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