Academic literature on the topic 'Crystallinity'

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Journal articles on the topic "Crystallinity"

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Zhang, Weiwei, Linjiang Chen, Sheng Dai, et al. "Reconstructed covalent organic frameworks." Nature 604, no. 7904 (2022): 72–79. http://dx.doi.org/10.1038/s41586-022-04443-4.

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AbstractCovalent organic frameworks (COFs) are distinguished from other organic polymers by their crystallinity1–3, but it remains challenging to obtain robust, highly crystalline COFs because the framework-forming reactions are poorly reversible4,5. More reversible chemistry can improve crystallinity6–9, but this typically yields COFs with poor physicochemical stability and limited application scope5. Here we report a general and scalable protocol to prepare robust, highly crystalline imine COFs, based on an unexpected framework reconstruction. In contrast to standard approaches in which mono
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Kübler, Bernard, and Michel Jaboyedoff. "Illite crystallinity." Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 331, no. 2 (2000): 75–89. http://dx.doi.org/10.1016/s1251-8050(00)01395-1.

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Duta, Anca, and I. Kadas-Iluna. "Polyvinyl Alcohol Crystallinity." Materials Science Forum 133-136 (January 1993): 951–0. http://dx.doi.org/10.4028/www.scientific.net/msf.133-136.951.

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Jaboyedoff, M. "Illite “Crystallinity” Revisited." Clays and Clay Minerals 49, no. 2 (2001): 156–67. http://dx.doi.org/10.1346/ccmn.2001.0490205.

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Zhang, Xiao Xun, Luo Wang, and Qiu Hui Liao. "Experimental Study on the Crystallinity and Mechanical Properties of the Injection Molded Polypropylene." Advanced Materials Research 239-242 (May 2011): 2809–12. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.2809.

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Polypropylene specimens were made by the injection molding experiments under different processing conditions. The crystallinity of each polypropylene specimen was obtained using the X-ray diffraction method. The effects of the injection molding processes on the crystallinity of polypropylene were revealed: (1) the crystallinity decreases as the melt temperature increases, and the higher the melt temperature, the slower the crystallinity decreases, (2) the crystallinity decreases as the mould temperature increases, and the higher the mould temperature, the faster the crystallinity decreases, (3
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Kosa, Tamas, Ludmila Sukhomlinova, Linli Su, Bahman Taheri, Timothy J. White, and Timothy J. Bunning. "Light-induced liquid crystallinity." Nature 485, no. 7398 (2012): 347–49. http://dx.doi.org/10.1038/nature11122.

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van Soest, Jeroen J. G., S. H. D. Hulleman, D. de Wit, and J. F. G. Vliegenthart. "Crystallinity in starch bioplastics." Industrial Crops and Products 5, no. 1 (1996): 11–22. http://dx.doi.org/10.1016/0926-6690(95)00048-8.

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Duta, Anca, R. Tica, Dana Perniu, and B. Cismas. "Poly (Vinyl Butyral) Crystallinity." Materials Science Forum 228-231 (July 1996): 889–94. http://dx.doi.org/10.4028/www.scientific.net/msf.228-231.889.

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Yu, Sze-Man, and Stefan Mecking. "Variable Crystallinity Polyethylene Nanoparticles." Macromolecules 42, no. 11 (2009): 3669–73. http://dx.doi.org/10.1021/ma9003665.

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Löwen, Hartmut, and Thomas Beier. "Crystallinity in liquid films." Physical Review B 41, no. 7 (1990): 4435–40. http://dx.doi.org/10.1103/physrevb.41.4435.

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Dissertations / Theses on the topic "Crystallinity"

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Santos, Flavio Bezerra dos. "Molecular structure and liquid crystallinity." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243176.

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Perry, Christopher Cecil. "Orientation and crystallinity of bifunctional adsorbates." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366426.

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Murphy, Lindsay Adams. "Morphological investigation of AFR-PEPA-N imide oligomers and their cured polyimides and the remodification of AFR-PEPA-N to achieve liquid-crystalline behavior." Texas A&M University, 2003. http://hdl.handle.net/1969.1/1174.

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The morphological investigation of AFR-PEPA-N and the development of a new polyimide have been established herein. AFR-PEPA-N is an imide oligomer that was created out of the need to attain a high temperature polyimide that is also resistant to hygrothermal and thermooxidative degradation. Previously, AFR700B was implemented in aerospace applications, but it was found to be hygrothermally unstable. It experienced a severe drop in its glass transition temperature and composite blistering. AFR700B was improved upon, by altering the chemical structure of the polyimide. The nadic end-cap was re
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Lehnert, Ralph Juergen. "Studies on the crystallinity of poly(tetrafluoroethylene)." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241181.

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Breeson, Andrew. "Control of crystallinity in photocatalytic titanium dioxide." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/10037914/.

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Powders and thin films of titanium dioxide (TiO2) were synthesised via wet chemical methods in two ways: a sol-gel synthesis, and a liquid phase deposition. Crystalline mixed phase powders, highly oriented films, and non-crystalline films of titanium dioxide have all been investigated. Specifically this investigation revealed dramatic differences in the XPS valance band spectra of the crystalline polymorphs of anatase and rutile, and subsequently a novel procedure for extracting quantitative phase information from X-ray photoelectron spectroscopy valence band spectra was developed. A linear re
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Fletcher, Ian David. "Liquid crystallinity and the role of molecular flexibility." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239472.

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Ismail, Yob Saed Bin. "Structure/property relationships associated with woven glass fibres reinforced polypropylene composites." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/11902.

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The objective of this work was to examine the effect of thermal history during cooling from the melt on the degree of crystallinity, morphology and as well as the relationship between morphology/thermal history and mechanical properties of a 60:40 weight % mixture of woven glass fibres/PP composites. Mechanical properties studied include low velocity falling weight impact strength, flexural properties (modulus and strength) and interlaminar shear strength (ILSS). However the main focus was low velocity impact strength. The composite laminates were manufactured within a flat mould using a compr
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Zakrevskyy, Yuriy. "Liquid crystallinity and alignment of ionic self-assembly complexes." Phd thesis, [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=982215908.

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Suryanarayanan, Rajagopalan. "Studies on the crystallinity and phase transitions of calcium gluceptate." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25978.

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Calcium gluceptate (calcium ɑ-glucoheptonate, CaC₁₄,H₂₆O₁₆) occurs as a crystalline hydrate (I) containing 3 1/2 molecules of water of crystallization per atom of calcium or as an amorphous anhydrate(III). Calcium gluceptate was synthesised commercially as III until 1980 but since then only I has been commercially available. The maximum aqueous solubility of III at room temperature was found to be > 2 molal while the equilibrium solubility of I at 25.5°C was 0.06 molal (≃3.3% w/v). A crystalline anhydrate (II) wtiich had an apparent water solubility of 1.3 molal was prepared from I by dehydrat
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Kang, Chin-Shuo. "CONTROL OF TITANIUM DIOXIDE NANOFIBER CRYSTALLINITY, PARTICLE SIZE AND MORPHOLOGY." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron161960479044817.

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Books on the topic "Crystallinity"

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De Rosa, Claudio, and Finizia Auriemma, eds. Crystals and Crystallinity in Polymers. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118690444.

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Mumbru, J. Crystallinity topics in the synthetic fibres. Universidade do Minho, 1992.

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A, Ciferri, ed. Liquid crystallinity in polymers: Principles and fundamental properties. VCH Publishers, 1991.

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United States. National Aeronautics and Space Administration., ed. Compositional variation in Apollo 16 impact-melt breccias and inferences for the geology and bombardment history of the central highlands of the moon. National Aeronautics and Space Administration, 1994.

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United States. National Aeronautics and Space Administration., ed. Compositional variation in Apollo 16 impact-melt breccias and inferences for the geology and bombardment history of the central highlands of the moon. National Aeronautics and Space Administration, 1994.

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Campbell, Carl. The crystallinity of uniform triblock oxyethylene/alkylene/oxyethylene (EmCnEm) oligomers. University of Manchester, 1993.

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Center, Langley Research, ed. Crystallinity determination by curvefit procedure for a semi-crystalline polymer. National Aeronautics and Space Administration, Langley Research Center, 1985.

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A, Rushing R., Thornton C. P, and United States. National Aeronautics and Space Administration., eds. Interim report on chemical and thermal analysis. National Aeronautics and Space Administration, 1996.

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9

H, Strong Robert, and Geological Survey (U.S.), eds. Vitrinite reflectance and illite crystallinity, Cambria slab and Franciscan complex, central California coast. U.S. Dept. of the Interior, Geological Survey, 1986.

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United States. National Aeronautics and Space Administration., ed. Electro-optically active monomers: Synthesis and characterization of thin films of liquid crystalline substituted polyacetylenes. National Aeronautics and Space Administration, 1995.

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Book chapters on the topic "Crystallinity"

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Gooch, Jan W. "Crystallinity." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3154.

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Swallowe, G. M. "Crystallinity." In Polymer Science and Technology Series. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9231-4_10.

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Gooch, Jan W. "Degree of Crystallinity." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3379.

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John, Vernon. "Glasses and Partial Crystallinity." In Introduction to Engineering Materials. Palgrave Macmillan UK, 1992. http://dx.doi.org/10.1007/978-1-349-21976-6_6.

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Brostow, Witold. "An Introduction to Liquid Crystallinity." In Liquid Crystal Polymers: From Structures to Applications. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1870-5_1.

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Fowler, A. D. "Mineral Crystallinity in Igneous Rocks." In Fractals in the Earth Sciences. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1397-5_12.

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Sozzani, P., A. Comotti, and R. Simonutti. "Nmr and Crystallinity of Nanostructured Materials." In Crystal Engineering: From Molecules and Crystals to Materials. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4505-3_25.

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Santmartí, Alba, and Koon-Yang Lee. "Crystallinity and Thermal Stability of Nanocellulose." In Nanocellulose and Sustainability. CRC Press, 2018. http://dx.doi.org/10.1201/9781351262927-5.

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Crompton, T. R. "Degree of Crystallinity and Melting Temperature." In Practical Polymer Analysis. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2874-6_13.

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Seminario, Jorge Fajardo, Carlos O. Verdugo, Cesar A. Paltan, and Robin Zuluaga. "Isolation and Characterization of Crystalline Cellulose Nanofibers (CNF’S) from Guadua Angustifolia Kunth (GAK)." In Proceedings of the XV Ibero-American Congress of Mechanical Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-38563-6_14.

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AbstractThis work aims to isolate and characterize crystalline cellulose nanofibers from a tropical bamboo named guadua angustifolia. A nanofiber extraction methodology was developed that includes: i) a thermomechanical pretreatment by steam explosion, ii) an acid hydrolysis phase, and iii) a disintegration phase using a supermasscolloid grinder. The nanofibers were evaluated for their morphology (SEM) and (AFM), functional groups (FTIR), thermal degradation (TGA) and crystallinity index (XRD). The diameters of the nanofibers ranged from 20 to 60 nm. FTIR analysis determined an effective remov
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Conference papers on the topic "Crystallinity"

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Takeshita, Yukitoshi, Takashi Sawada, Takao Handa, and Tamotsu Kudo. "The Effect of Cooling Time on Properties of Thermoplastic Powder Coating Films for Telecommunication Plants." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11374.

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Abstract Thermoplastic polyester resin is known for the fact that the heating condition has an effect on the degree of crystallinity. Therefore, it seems certain that the coating condition will also affect the degree of crystallinity of a coating film. We focused on the relationship between the cooling time employed in the film preparation process and the degree of crystallinity as regards thermoplastic polyester powder we developed. The coating was formed by dipping the test pieces in a fluidized polyester powder vessel. The test pieces were subsequently cooled in air to form the film, and fi
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Mezouar, Ali, Nadia Saidi-Amroun, Virginie Griseri, Gilbert Teyssédre, and Mohamed Saidi. "Correlating Crystallinity and Electrical Conductivity in Gamma-Irradiated PTFE." In 2024 IEEE 5th International Conference on Dielectrics (ICD). IEEE, 2024. http://dx.doi.org/10.1109/icd59037.2024.10613047.

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Daigo, Yuzo, Yutaka Watanabe, Katsuo Sugahara, and Takeshi Isobe. "Corrosion Resistance of Ni Base Alloys in Supercritical Water Containing Sulfuric Acid : Dependencies on Alloying Elements." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07413.

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Abstract Supercritical water is recognized as a promising medium for various chemical processes. However, one of the major problems to industrial application of the processes is thought to be corrosion of structural materials. In this paper, dependencies of corrosion resistance on alloying elements were investigated on twelve kinds of nickel base alloys in 400°C30MPa and 400°C60MPa supercritical water containing 0.01mol/kg sulfuric acid. The investigations reveals that Cr controls the corrosion resistance of the alloys in the test conditions and thresholds of changes in improvement rate in cor
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Luo, Hui. "Imaging Polymer Crystallinity with STEM." In European Microscopy Congress 2020. Royal Microscopical Society, 2021. http://dx.doi.org/10.22443/rms.emc2020.340.

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Nakauchi, Genta, Shota Akasaki, and Hideo Miura. "Microtexture Dependence of Mechanical and Electrical Properties of Gold Thin Films Used for Micro Bumps of 3D Stacking Structures." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23441.

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Abstract The variation of their crystallinity, in other words, the order of atom arrangement of grain boundaries in electroplated gold thin films was investigated by changing their manufacturing conditions. Then, the effect of the crystallinity on both their mechanical and electrical properties was measured by using nano-indentation test and electromigration test. The crystallinity of the gold thin films was varied by changing the under-layer material used for electroplating. Also, the micro texture of gold thin films was evaluated by EBSD (Electron Back-Scatter Diffraction) and XRD (X-Ray Dif
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Alzahrani, Faisal J., Alaauldeen A. Duhduh, Peng Gao, and John P. Coulter. "The Influence of Cooling Rate and Mold Temperature on Polymers Crystallization Kinetics in Injection Molding." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-73665.

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Abstract Crystallinity plays a significant role in determining the quality of molded polymeric products. Higher crystallinity yields higher impact strength, while lower crystallinity yields higher water absorption and faster degradation. Therefore, the crystallinity level within a product should be tuned based on the desired outcome. The degree of crystallinity is determined by the crystallization rate, which is influenced by many processing factors such as cooling rate and mold temperature in injection molding. Moreover, there is not much research conducted to numerically investigate crystal
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Akasaki, Shota, and Hideo Miura. "Crystallinity-Induced Acceleration of Intergranular Cracking in Thin-Film Interconnections Under High Current Density." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70222.

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Abstract The degradation process of the crystallinity of grain boundaries in thin-film interconnections was visualized by applying EBSD analysis under high current density. The grain boundary diffusion was accelerated by electromigration only along random grain boundaries with low crystallinity. The crystallinity (IQ value obtained from EBSD analysis) of grain boundaries varied drastically depending on manufacturing process such as temperature, gas pressure, substrate material, and so on. The effective activation energy of self-diffusion of component element was dominated by the crystallinity
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Murata, Naokazu, Ken Suzuki, and Hideo Miura. "Quantitative Evaluation of the Crystallinity of Grain Boundaries in Polycrystalline Materials." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87426.

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The effect of the crystllinity of electroplated copper thin films on their mechanical and electrical reliability was investigated experimentally. The crystallinity of grains and grain boundaries was evaluated by IQ (Image Quality) value of EBSD (Electron Back-Scattering Diffraction) analysis. Mechanical properties of thin electroplated films were measured by tensile test. The crystallinity of the thin film was improved by annealing. Therefore, yield stress decrease and fracture strain increase with increase of annealing temperature. Thin film interconnections for measurement of electrical prop
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Armas Alvarado, Maria, Daniel O. Carvalho, Ines Pereyra, and Marco Alayo Chávez. "INFLUENCE OF ALN CRYSTALLINITY ON SAP WAVEGUIDES." In Latin America Optics and Photonics Conference. OSA, 2016. http://dx.doi.org/10.1364/laop.2016.ltu4a.28.

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Donderwinkel, T. G., B. Rietman, S. P. Haanappel, and R. Akkerman. "Stamp forming optimization for formability and crystallinity." In ESAFORM 2016: Proceedings of the 19th International ESAFORM Conference on Material Forming. Author(s), 2016. http://dx.doi.org/10.1063/1.4963585.

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Reports on the topic "Crystallinity"

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Simon, Jonathan. Dynamics of Emergent Crystallinity in Photonic Quantum Materials. Office of Scientific and Technical Information (OSTI), 2019. http://dx.doi.org/10.2172/1545250.

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Andrews, M. K. Effect of MST on Crystallinity of CST/Sludge Glasses. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/4960.

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Riley, Brian J., Jose A. Rosario, and Pavel R. Hrma. Impact of HLW Glass Crystallinity on the PCT Response. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/15001115.

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Van Bosse, J. Y., I. M. Samson, and A. E. Williams-Jones. Illite Crystallinity Studies Around the Roberts Metal Deposit, eastern Townships, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/120701.

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Samson, I. M., and A. E. Williams-Jones. Illite Crystallinity Studies in the Gaspe-Connecticut Valley Synclinorium Around Barnston, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/120387.

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Orme, Chris A. Progress Summary: Developing experimental methods to quantify the degree of crystallinity in fluoropolymer binders. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1476198.

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Zhou, Hongcai, and Simon Billinge. Studies of Reactive Amorphous Compounds and Surfaces: Their Pathways to Crystallinity and Surface Functionality. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/2000808.

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Rae, Philip. The mechanical properties of Kel-F 800 (FK-800) as a function of crystallinity. Office of Scientific and Technical Information (OSTI), 2024. http://dx.doi.org/10.2172/2476004.

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ตัณฑะพานิชกุล, วิวัฒน์. การผลิตอนุภาค Microcrystalline cellulose จากเส้นใยฝ้าย เพื่อทดแทนการนำเข้าจากต่างประเทศ : รายงานวิจัยฉบับสมบูรณ์. จุฬาลงกรณ์มหาวิทยาลัย, 2003. https://doi.org/10.58837/chula.res.2003.49.

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จุลผลึกเซลลูโลสเป็นสารที่สามารถนำไปใช้ประโยชน์ได้อย่างกว้างขวางในอุตสาหกรรมอาหาร เภสัชกรรม เครื่องสำอาง สี และอุตสาหกรรมอื่นๆ การผลิตจุลผลึกเซลลูโลสสามารถเตรียมได้ภายใต้ปฏิกิริยาไฮโดรไลซีสแบบวิวิธพันธ์ด้วยกรด (Heterogeneous acid hydrolysis) ดังนั้นในโครงงานวิจัยนี้จึงนำเส้นใยฝ้ายซึ่งสามารถหาได้ง่ายภายในประเทศและมีเซลลูโลสเป็นองค์ประกอบสูงถึง 94.24% และมีองศาความเป็นผลึก 80.16% มาเพิ่มมูลค่าโดยใช้เป็นวัตถุดิบในการผลิตจุลผลึกเซลลูโลส โดยผ่านกระบวนการย่อยสลายในสภาวะด่าง (Alkaline degradation) และศึกษาผลของความเข้มข้นของสารละลายโซเดียมไฮดรอกไซด์ อุณหภูมิและเวลา ที่มีต่อการย่อยสลายในสภาวะด่าง จะพบว
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Brinkman, Kyle, Elise Fox, Paul Korinko, and Thad Adams. STRUCTURAL INTERACTIONS OF HYDROGEN WITH BULK AMORPHOUS MICROSTRUCTURES IN METALLIC SYSTEMS UNDERSTANDING THE ROLE OF PARTIAL CRYSTALLINITY ON PERMEATION AND EMBRITTLEMENT. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/979406.

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