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Journal articles on the topic 'Micronic'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Bossis, G., C. Mathis, Z. Mimouni, and C. Paparoditis. "Magnetoviscosity of Micronic Suspensions." Europhysics Letters (EPL) 11, no. 2 (January 15, 1990): 133–37. http://dx.doi.org/10.1209/0295-5075/11/2/007.

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2

Montanaro, Laura, and Paola Palmero. "Advances in the Field of Nanostructured Ceramic Composites." Ceramics 2, no. 2 (April 15, 2019): 296–97. http://dx.doi.org/10.3390/ceramics2020024.

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In recent years, the production of ceramic composites having nanosized features is receiving increasing attention, as they demonstrated enhanced mechanical and/or functional performances as respect to conventional micronic materials [...]

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3

Uzu, G., S. Sobanska, Y. Aliouane, P. Pradere, and C. Dumat. "Study of lead phytoavailability for atmospheric industrial micronic and sub-micronic particles in relation with lead speciation." Environmental Pollution 157, no. 4 (April 2009): 1178–85. http://dx.doi.org/10.1016/j.envpol.2008.09.053.

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4

Alavi, Shila, and Brigitte Caussat. "Experimental study on fluidization of micronic powders." Powder Technology 157, no. 1-3 (September 2005): 114–20. http://dx.doi.org/10.1016/j.powtec.2005.05.017.

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5

Emberlin, J. "Plant allergens on pauci-micronic airborne particles." Clinical Experimental Allergy 25, no. 3 (March 1995): 202–5. http://dx.doi.org/10.1111/j.1365-2222.1995.tb01029.x.

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6

Chanal, O., B. Baguenard, O. Béthoux, and B. Chabaud. "Micronic-size cryogenic thermometer for turbulence measurements." Review of Scientific Instruments 68, no. 6 (June 1997): 2442–46. http://dx.doi.org/10.1063/1.1148130.

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7

Zoaeter, M., B. Beydoun, M. Hajjar, M. Debs, and J.-P. Charles. "Analysis and Simulation of Functional Stress Degradation on VDOMS Power Transistors." Active and Passive Electronic Components 25, no. 3 (2002): 215–23. http://dx.doi.org/10.1080/08827510213500.

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The use of VDMOS transistor under certain functional stress conditions produces a modification of its physical and electrical properties. This paper explores the physical analysis and SPICE simulation of the degradation effects related to the component micronic structure, and points out the degraded parameters following this stress.

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8

Reverchon, Ernesto, and Giovanna Della Porta. "Supercritical fluids-assisted micronization techniques. Low-impact routes for particle production." Pure and Applied Chemistry 73, no. 8 (August 1, 2001): 1293–97. http://dx.doi.org/10.1351/pac200173081293.

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Micronized powders are of interest in many industrial fields; pharmaceuticals, catalysts, pigments, and biopolymers, for example, are some categories of products that can be used as micro-sized particles. Traditional techniques used to produce micronic powders are based on high-temperature reactions that require high energies, on jet milling that is characterized by low efficiencies and mechanical stress, and on liquid solvents precipitation that has a poor control on particle size and can pollute the product. Generally, the control of the powder size and the span of its distribution are still very approximate.In the last few years, several supercritical fluids-based techniques have been proposed for the production of micronic and nanometric particles. These processes try to take advantage of some specific properties of gases at supercritical conditions such as enhanced solubilization power and its modulation, large diffusivities, solventless or organic solvent reduced operation, and the connected possibility of controlling powder size and distribution. Techniques like the rapid expansion of supercritical solutions (RESS), supercritical antisolvent precipitation (SAS), particle generation from gas-saturated solutions (PGSS), and new atomization processes have been critically reviewed in this work.

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9

Nutz, M., G. Furdin, G. Medjahdi, J. F. Marêché, and M. Moreau. "Rheological properties of coal tar pitches containing micronic graphite powders." Carbon 35, no. 7 (1997): 1023–29. http://dx.doi.org/10.1016/s0008-6223(97)00066-3.

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10

Spieksma, F. Th M., J. A. Kramps, A. Plomp, and H. K. Koerten. "Grass-pollen allergen carried by the smaller micronic aerosol fraction." Grana 30, no. 1 (January 1991): 98–101. http://dx.doi.org/10.1080/00173139109427779.

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11

Lepoutre, F., Ph Forge, J. L. Joulaud, L. Paradis, and D. Rochais. "Micronic thermal characterization of vertical interfaces using the photoreflectance method." Le Journal de Physique IV 04, no. C7 (July 1994): C7–571—C7–574. http://dx.doi.org/10.1051/jp4:19947134.

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12

Huby, Nolwenn, John Bigeon, Gwennaël Danion, Jean-Luc Duvail, Françis Gouttefangeas, Loïc Joanny, and Bruno Bêche. "Transferable Integrated Optical SU8 Devices: From Micronic Waveguides to 1D-Nanostructures." Micromachines 6, no. 5 (April 23, 2015): 544–53. http://dx.doi.org/10.3390/mi6050544.

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13

Silvain, J. F., J. L. Bobet, and J. M. Heintz. "Electroless deposition of copper onto alumina sub-micronic powders and sintering." Composites Part A: Applied Science and Manufacturing 33, no. 10 (October 2002): 1387–90. http://dx.doi.org/10.1016/s1359-835x(02)00153-7.

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14

Plyushch, Artyom, Jan Macutkevic, Polina P. Kuzhir, Juras Banys, Vanessa Fierro, and Alain Celzard. "Dielectric properties and electrical conductivity of flat micronic graphite/polyurethane composites." Journal of Nanophotonics 10, no. 1 (November 18, 2015): 012511. http://dx.doi.org/10.1117/1.jnp.10.012511.

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15

During, Annelise, Caroline Fossati, and Mireille Commandré. "Photothermal deflection microscopy for imaging sub-micronic defects in optical materials." Optics Communications 230, no. 4-6 (February 2004): 279–86. http://dx.doi.org/10.1016/j.optcom.2003.11.040.

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16

Benedetti, Luca, Alberto Bertucco, and Paolo Pallado. "Production of micronic particles of biocompatible polymer using supercritical carbon dioxide." Biotechnology and Bioengineering 53, no. 2 (January 20, 1997): 232–37. http://dx.doi.org/10.1002/(sici)1097-0290(19970120)53:2<232::aid-bit15>3.0.co;2-m.

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17

Staff, I. A., G. Sch�ppi, and P. E. Taylor. "Localisation of allergens in ryegrass pollen and in airborne micronic particles." Protoplasma 208, no. 1-4 (March 1999): 47–57. http://dx.doi.org/10.1007/bf01279074.

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18

Muc, Aleksander, and Marek Barski. "Homogenization, Numerical Analysis & Optimal Design of MR Fluids." Advanced Materials Research 47-50 (June 2008): 1254–57. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1254.

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Usually magnetorheological fluids are dispersions of micronic magnetic particles in a carrier liquid. We shall present the basic phenomena related to the numerical description of homogenization for such type of composite structures. Our attention is mainly focused on the prediction of the effective permeabilities that can play a fundamental role in the aggregation of magnetic particles and are responsible for the gelation of the suspension and will allow the suspension to flow. We shall also give some information on the optimal design of the effective permeabilities taking into account the shape of magnetic particles.

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19

BELLAN, C., and G. BOSSIS. "FIELD DEPENDENCE OF VISCOELASTIC PROPERTIES OF MR ELASTOMERS." International Journal of Modern Physics B 16, no. 17n18 (July 20, 2002): 2447–53. http://dx.doi.org/10.1142/s0217979202012499.

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A magnetoactive elastomer made of micronic carbonyl iron particles, structured in elongated clusters and embedded in a silicon elastomer matrix is studied under traction both in static and dynamic modes. The application of a magnetic field of 120 kA/m induces a change in elastic moduli of about 0.6 MPa at strains of 4 to 5%. Still higher changes (4 MPa) are observed in dynamic storage modulus at low strains (10-4 to 10-3). The shape of the stress-strain curves are explained by taking into account the existence of a fiber like structure.

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20

Dontsova, T. A., L. M. Kulikov, and I. M. Astrelin. "Adsorption-photocataltic properties of micronic and graphene (2D) nanoparticles of molybdenum dichalcogenides." Journal of Water Chemistry and Technology 39, no. 3 (May 2017): 132–37. http://dx.doi.org/10.3103/s1063455x1703002x.

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21

Duval, D., H. Lhermite, C. Godet, N. Huby, and B. Bêche. "Fabrication and optical characterization of sub-micronic waveguide structures on UV210 polymer." Journal of Optics 12, no. 5 (May 1, 2010): 055501. http://dx.doi.org/10.1088/2040-8978/12/5/055501.

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22

Fievet, F. "A new route for the preparation of micronic and submicronic metal particles." Solid State Ionics 26, no. 2 (March 1988): 154. http://dx.doi.org/10.1016/0167-2738(88)90082-3.

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23

Dobra, Gheorghe, Santiago Garcia-Granda, Sorin Iliev, Lucian Cotet, Hulka Iosif, Petru Negrea, Narcis Duteanu, Alina Boiangiu, and Laurentiu Filipescu. "Aluminum Hydroxide Impurities Occlusions and Contamination Sources." Revista de Chimie 71, no. 9 (September 5, 2020): 65–76. http://dx.doi.org/10.37358/rc.20.9.8318.

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This paper is reporting the data concerning impurities occlusion in the dried, milled and classified aluminum hydroxide, the sources of contamination and the ways to control the purity of classified aluminum hydroxide as raw material for special aluminas. Mainly, all the micronic size particles, floating in the super-saturated Bayer liquors, are potential sources of occluded impurities in the aluminum hydroxide particles. There are several mechanisms for embedding the impurities in crystalline substances. Of these, most probable ones in the Bayer alumina process are: a) occlusion of the spent liquor drops containing impurities inside the polycrystalline aluminum hydroxide congregates; b) hetero-nucleation of aluminum hydroxide on the surface of particles or colloids containing one or more impurities (the foreign particles are seized inside a crystals or inside of a crystalline multi-particulate association); c) incorporation of available ions or molecule reactive fragments in the poor crystalline structures of aluminum hydroxide after nucleation, during different growth stages of all already aggregated particles, under certain super-saturations. d) building up bridges between the scanty aggregated particles or filling the inside hollows of these aggregates with new quickly crystallized material, including the particulate impurities, mainly, during large fluctuations of the super-saturation. Using scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy EDS (Apollo SSD detector, EDAX), the contributions of each of these mechanisms can be investigated simply and assumed from the collected data. It was shown that well crystallized phases originating directly from bauxite (like the aluminum substituted goethite and substituted hematite, rutile or quartz), as well as the well as the crystallized new born phases during specific Bayer reactions (like cancrinite, are not promoting directly the impurities occlusion. Poor crystalline phases (like sodalite and katoite or other secondary phases and their micronic size fragments are really sustaining impurities occlusion through all the acknowledged mechanisms.

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24

Vernhet, Aude, Magali Bes, Delphine Bouissou, Stéphanie Carrillo, and Jean-Marc Brillouet. "Characterization of suspended solids in thermo-treated red musts." OENO One 50, no. 1 (March 31, 2016): 9. http://dx.doi.org/10.20870/oeno-one.2016.50.1.50.

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<p style="text-align: justify;"><strong>Aims</strong>: Thermo-treatment of grapes, followed by pressing and fermentation in liquid phase, is a growing practice in red winemaking to obtain light and fruity wines. Must clarification before fermentation, a key step to get the expected wine profile, is hardly controlled and strongly varies between different musts. To better understand this variability and its potential impact on quality, suspended solids in several red musts were characterized and the performances of different clarification techniques compared.</p><p style="text-align: justify;"><strong>Methods and results</strong>: Results show a large variability in turbidity and total wet suspended solids between different raw and clarified musts, and a lack of correlation between these values. Clarification is always higher for vacuum filtration than for disk-stack or decanter centrifugation, with strong differences between musts for a given process. Despite a large size distribution, most of suspended particles are micronic and sub-micronic. TEM observations and analyses indicate that they are mostly membrane and organelle fragments along with (macro)molecular aggregates formed during juice extraction. Their overall composition differs from that found in white musts.</p><p style="text-align: justify;"><strong>Conclusion</strong>: Particle heterogeneity and size distribution account for the difficulties encountered in red must clarification. Results also raise the question of the relationship between must turbidity and content in compounds likely to affect wine quality. </p><strong>Significance and impact of the study</strong>: This study constitutes a first characterization of suspended solids in thermo-treated red musts. It provides elements to (i) reason their clarification and (ii) identify the technological and qualitative impact of must suspended solids.

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25

Chausson, Sophie, Richard Retoux, Jean-Michel Rueff, Loïc LE Pluart, Pierre-Jean Madec, and Paul-Alain Jaffres. "Elaboration and characterization of novel polyamide-12-layered titanoniobates nanocomposites." Journal of Materials Research 24, no. 11 (November 2009): 3358–71. http://dx.doi.org/10.1557/jmr.2009.0410.

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This article describes the synthesis and the characterization of a polyamide-12 filled with a nanostructured organic/inorganic titanoniobate hybrid material. The pristine oxide KTiNbO5 has been successfully organomodified by N-alkyl amines via an acido-basic reaction after a cationic exchange step as shown by x-ray diffraction. Transmission electron microscope study and scanning transmission electron microscope observations have been used to describe the change of morphology of the nanofillers before and after processing; the micronic aggregates were changed into single sheets and dispersed in the polymer. Thermomechanical properties of the composites have been determined, and their analyses with structure-properties models are consistent with the exfoliation of the organomodified titanoniobates.

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26

Hérold, C., J. F. Marêché, A. Mabchour, and G. Furdin. "A New Variety of Micronic Graphite and the Reduction of its Intercalation Compounds." Materials Science Forum 152-153 (March 1994): 347–50. http://dx.doi.org/10.4028/www.scientific.net/msf.152-153.347.

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27

SPIEKSMA, F. Th M., J. A. KRAMPS, A. C. LINDEN, BEP H. NIKKELS, A. PLOMP, H. K. KOERTEN, and J. H. DIJKMAN. "Evidence of grass-pollen allergenic activity in the smaller micronic atmospheric aerosol fraction." Clinical Experimental Allergy 20, no. 3 (May 1990): 273–80. http://dx.doi.org/10.1111/j.1365-2222.1990.tb02683.x.

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28

Djahli, F., C. Plossu, and B. Balland. "Micronic n-channel MOSFET degradation under strong and short-time hot-carrier stress." Materials Science and Engineering: B 15, no. 2 (November 1992): 164–68. http://dx.doi.org/10.1016/0921-5107(92)90050-j.

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29

Allouis, C., F. Beretta, and A. D’Alessio. "Sizing soot and micronic carbonaceous particle in spray flames based on time resolved LII." Experimental Thermal and Fluid Science 27, no. 4 (April 2003): 455–63. http://dx.doi.org/10.1016/s0894-1777(02)00248-0.

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30

D'Arras, Loïc, Capucine Sassoye, Laurence Rozes, Clément Sanchez, Jérôme Marrot, Samuel Marre, and Cyril Aymonier. "Fast and continuous processing of a new sub-micronic lanthanide-based metal–organic framework." New J. Chem. 38, no. 4 (2014): 1477–83. http://dx.doi.org/10.1039/c3nj01371e.

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31

PELIN, George. "Nanometric SiC influence on tribological properties of phenolic composite materials." INCAS BULLETIN 13, no. 1 (March 5, 2021): 131–40. http://dx.doi.org/10.13111/2066-8201.2021.13.1.14.

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This paper presents an experimental study of the influence of nano metric silicon carbide in the composition of phenolic composites on the coefficient of friction. The paper is divided into three distinct parts investigating from a tribological point of view three different types of composite materials based on phenolic resin with three concentrations of nSiC (0.5; 1 and 2% by mass). In the first part, a comparative study of the behavior of phenolic resin was performed, representing the basis for the development of composite materials. In the second part, a study was performed on laminated materials reinforced with two-dimensional fabrics (glass fiber and carbon fiber, respectively). The last part studied two types of ablative phenolic materials based on micronic cork, on one hand, and on carbon felt on the other hand.

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32

CARLETTO, P., G. BOSSIS, and A. CEBERS. "STRUCTURES IN A MAGNETIC SUSPENSION SUBJECTED TO UNIDIRECTIONAL AND ROTATING FIELD." International Journal of Modern Physics B 16, no. 17n18 (July 20, 2002): 2279–85. http://dx.doi.org/10.1142/s0217979202012244.

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Field induced structures are studied inside suspensions of magnetic colloidal particles of micronic size. We have characterized the average distance between aggregates in a thin cell with the magnetic field perpendicular to the plane and also in the presence of a rotating field with the plane of rotation perpendicular to the plane of the cell. The characteristic size of the mesostructure is predicted on the basis of a thermodynamic model. The theory well predicts the experimental results in the uniaxial case but not in the case of ae rotating field; in this last case, the surface tension which is needed to have a good fit is far too low compared to its expected order of magnitude. When the field is uniaxial and sinusoidal we have found a collective instability where all the aggregates are rotating simultaneously in a chaotic way.

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33

Billon, Noelle, Jean Marc Haudin, Camille Vallot, and Charles Babin. "Stretch Blow Moulding of Mineral Filled PET." Key Engineering Materials 504-506 (February 2012): 1099–104. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.1099.

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Injection Stretch Blow mouldng is a two step processing that was designed and optimized mainly using unfilled PET resins. This study focuses on stretch blow moulding of a PET filled with a few percent of sub micronic mineral fillers. Based on DSC, DMA, tensile tests as well as blowing on prototype machine main effects of fillers are analysed. It is demonstrated that fillers increases crystallization kinetics resulting in a reduction of the processing range. Difference in strain hardening induced by fillers makes it necessary to adjust blowing temperature. However main effect occurs during heating phase. Temperature within the perform is much less homogeneous than in PET making thermal gradient totally different if heating protocole is kept unchanged. Once heating is controlled to reach to equivalent thermal gradients as for PET blowing is possible and rather equivalent to that of pure PET.

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34

Ştefan, Iulian, Sorin Savu, Olimpia Ghermec, Claudiu Nicolicescu, and Mario Trotea. "Researches Regarding Elaboration of Barium Hexaferrite from Microwave Heating." Solid State Phenomena 188 (May 2012): 369–75. http://dx.doi.org/10.4028/www.scientific.net/ssp.188.369.

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The paper presents the results of experimental researches on the formation of barium hexaferrite type M (BHFM) by microwave heating. The microwave heating process takes only a few minutes to obtain calcined barium ferrite powders. Micronic and nanometric powders of BaCO3 and α-Fe2O3 were used as raw materials. In order to obtain BHFM, the microwave heating process was used with following mixtures: stoichiometric homogeneous mixture of BaCO3 and α-Fe2O3 powders, mechanically alloyed mixtures of BaCO3 and α-Fe2O3 powders for 5 and 20 hours in wet medium using a high energy ball mill Pulverisette 4. Using high energy ball milling, the powder size was turned into nanoscale. After using the microwave heating process it was observed a significant reduction of temperature-time parameters to BHFM formation for mechanically alloyed mixtures compared to homogeneous mixture.

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35

Galy, Ph, S. Dudit, M. Vallet, Ph Larre, M. Bilinski, E. Petit, J. Beltritti, et al. "Inventory of silicon signatures induced by CDM event on deep sub-micronic CMOS–BICMOS technologies." Microelectronics Reliability 50, no. 9-11 (September 2010): 1388–92. http://dx.doi.org/10.1016/j.microrel.2010.07.137.

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36

Dubus, Alain. "Analysis of micronic phases containing light elements by quantitative backscattered electron microscopy and Image Analysis." Microscopy Microanalysis Microstructures 2, no. 4 (1991): 475–81. http://dx.doi.org/10.1051/mmm:0199100204047500.

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37

Ibrahim, Idza Riati, Mansor Hashim, Ismayadi Ismail, Khamirul Amin Matori, Raba’ah Syahidah Azis, Rodziah Nazlan, Nor Hapishah Abdullah, Wan Norailiana Wan Ab Rahman, Fadzidah Mohd Idris, and Norni Hidayawati Mat Daud. "Systematic microstructural development with thermal diffusivity behaviour from nanometric to micronic grains of strontium titanate." Journal of Thermal Analysis and Calorimetry 137, no. 1 (December 1, 2018): 105–19. http://dx.doi.org/10.1007/s10973-018-7954-8.

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38

Gruy, Frédéric, Michel Cournil, and Patrick Cugniet. "Influence of nonwetting on the aggregation dynamics of micronic solid particles in a turbulent medium." Journal of Colloid and Interface Science 284, no. 2 (April 2005): 548–59. http://dx.doi.org/10.1016/j.jcis.2004.10.020.

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39

Thiery, Laurent, Nathalie Marini, Jean-Pierre Prenel, Michel Spajer, Claudine Bainier, and Daniel Courjon. "Temperature profile measurements of near-field optical microscopy fiber tips by means of sub-micronic thermocouple." International Journal of Thermal Sciences 39, no. 4 (April 2000): 519–25. http://dx.doi.org/10.1016/s1290-0729(00)00231-3.

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40

Allouis, C., F. Rosano, F. Beretta, and A. D'Alessio. "A possible radiative model for micronic carbonaceous particle sizing based on time-resolved laser-induced incandescence." Measurement Science and Technology 13, no. 3 (February 8, 2002): 401–10. http://dx.doi.org/10.1088/0957-0233/13/3/323.

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41

Pham, P., P. Massé, and J. Berthier. "Numerical modeling of superparamagnetic sub-micronic particles trajectories under the coupled action of 3D force fields." European Physical Journal Applied Physics 12, no. 3 (December 2000): 211–16. http://dx.doi.org/10.1051/epjap:2000182.

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42

Kraft, S. M., F. A. Moslehy, Y. Bai, and A. P. Gordon. "Characterization of the Orthotropic Elastic Constants of a Micronic Woven Wire Mesh via Digital Image Correlation." Experimental Mechanics 54, no. 4 (November 14, 2013): 501–14. http://dx.doi.org/10.1007/s11340-013-9811-9.

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43

Reuge, N., J. Dexpert-Ghys, M. Verelst, and B. Caussat. "Y2O3:Eu micronic particles synthesised by spray pyrolysis: Global modelling and optimisation of the evaporation stage." Chemical Engineering and Processing: Process Intensification 47, no. 4 (April 2008): 731–43. http://dx.doi.org/10.1016/j.cep.2006.12.007.

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44

Shafiee, Farah Nabilah, Mohd Nizar Hamidon, Mohd Haniff Wahid, Abdul Halim Shaari, Mehmet Ertugrul, Nor Hapishah Abdullah, Mohd Asnawi Mohd Kusaimi, Muhammad Syazwan Mustaffa, Intan Helina Hasan, and Idza Riati Ibrahim. "Effect of nanometric and micronic particles size on physical and electrical properties of graphite thick film." International Journal of Nanotechnology 17, no. 11/12 (2020): 825. http://dx.doi.org/10.1504/ijnt.2020.112385.

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45

Sima, Gabriela, Ion Cinca, Cristina Teisanu, and Oana Gîngu. "Mechanical Characterization of the PM Hydroxyapatite-Based Biocomposites Elaborated by Two-Step Sintering." Advanced Materials Research 1128 (October 2015): 162–70. http://dx.doi.org/10.4028/www.scientific.net/amr.1128.162.

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The paper focuses on the mechanical characterization of porous biocomposites based on hydroxyapatite submicronic powders (< 200 nm), respectively micronic powders particle (30-50 μm) as matrix, reinforced by titanium hybrid powders (15 and 20% mass; 100-150 μm) as foaming agent. Another foaming agent used is calcium bicarbonate powder (5 and 10% mass). The mixture homogenization was made in a Frisch-Pulverisette 6 type planetary mill (n=200 rpm), for 30 minutes. The green compacts were processed by unilateral cold compaction at 150 MPa. The two-step sintering technology (TSS) has been applied to the green parts, on the Nabertherm conventional furnace: at 900°C for few minutes (first step) and at 800°C for 450 minutes, respectively 600 minutes (the second step). The mechanical characteristics (compression modulus G [MPa] and ultimate compression strength σUTS [MPa]), were studied using the universal mechanical testing machine INSTRON 3382 and compared with the mechanical characterization of the human bone.

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46

Teișanu, Cristina, Carmen Ristoscu, and Gabriela Sima. "The Influence of the Foaming Agents on the Porosity of the PM Hydroxyapatite-Based Biocomposites Processed by Two-Step Sintering." Advanced Materials Research 1128 (October 2015): 178–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1128.178.

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This paper presents a comparative analysis of the foaming process developed in hydroxyapatite (HAp)-based bicomposites as a function of the foaming agent. The matrix of the biocomposite consists of either submicronic or micronic powder particles of HAp. The titanium hydride powder was added as reinforcement’s precursor as well as blowing agent, and in order to increase the biocomposites’ porosity calcium carbonate was added as space holder agent. The powders mixture was homogenized in a planetary ball mill with a single grinding bowl for 1 minute in air. Uniaxial cold compaction at 120-170 MPa was performed in order to obtain cylindrical green parts, which next were heated in argon atmosphere using the two step sintering technique at temperatures of 900 °C for 1 minute and 800°C for 450 - 600 minutes. The porosity of the biocomposite is analysed through calculations and SEM and EDS analysis highlighting the influence of the above mentioned foaming techniques (blowing and space holder).

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47

Le Bihan, Olivier Louis Claude, Aurélien Ustache, Daniel Bernard, Olivier Aguerre-Chariol, and Martin Morgeneyer. "Experimental Study of the Aerosolization from a Carbon Nanotube Bulk by a Vortex Shaker." Journal of Nanomaterials 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/193154.

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Abstract:

The growing use of nanomaterials requires the development of tools enabling study of the risks to consumer, worker, and environment. This study relates to the risk of suspension of inhalable particles upon production and/or use of powders constituted of nanoobjects, and more specifically to the potential of the vortex shaker as apparatus for determining the dustiness of a powder and as atmosphere generating tool for experimental toxicology. The powder chosen for this study was Graphistrength C100 (ARKEMA), a multiwalled carbon nanotube. Its agitation in a vortex shaker at 1500 rpm leads to an aerosol divided into four families, from isolated fibres to micronic pellets. The study highlights that the speed of agitation and the geometry of the device are influential parameters, to be systematically taken into account. It concludes that while the technique seems mature to conduct C100 dustiness tests, developments are still necessary to use it routinely for toxicology studies.

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Fatah, N. "Study and comparison of micronic and nanometric powders: Analysis of physical, flow and interparticle properties of powders." Powder Technology 190, no. 1-2 (March 2009): 41–47. http://dx.doi.org/10.1016/j.powtec.2008.04.055.

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49

Wichitwong, W., S. Coëtmellec, D. Lebrun, D. Allano, G. Gréhan, and M. Brunel. "Long exposure time Digital In-line Holography for the trajectography of micronic particles within a suspended millimetric droplet." Optics Communications 326 (September 2014): 160–65. http://dx.doi.org/10.1016/j.optcom.2014.04.013.

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Bahramian, Alireza, and Martin Olazar. "Fluidization of micronic particles in a conical fluidized bed: Experimental and numerical study of static bed height effect." AIChE Journal 58, no. 3 (May 2, 2011): 730–44. http://dx.doi.org/10.1002/aic.12621.

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