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Journal articles on the topic 'Chemical expansion'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Brown, I. D., A. Dabkowski, and A. McCleary. "Thermal Expansion of Chemical Bonds." Acta Crystallographica Section B Structural Science 53, no. 5 (1997): 750–61. http://dx.doi.org/10.1107/s0108768197005909.

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Using the bond-valence model, a relationship is developed between the thermal expansion of a chemical bond, its amplitude of thermal vibration and its force constant. An empirical expression found between bond valence and the force constants derived from vibrational spectroscopy allows all of these quantities to be predicted from either the expected or the observed bond valence. The thermal expansion predicted by these relations is in excellent agreement with the average expansion observed around cations in inorganic solids, but individual bonds are found to expand more or less than this depen

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2

Mercer, Andrew C., and Michael D. Burkart. "Chemical expansion of cofactor activity." Nature Chemical Biology 2, no. 1 (2006): 8–10. http://dx.doi.org/10.1038/nchembio0106-8.

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3

Valentin, Olivier, Francis Millot, Éric Blond та ін. "Chemical expansion of La0.8Sr0.2Fe0.7Ga0.3O3–δ". Solid State Ionics 193, № 1 (2011): 23–31. http://dx.doi.org/10.1016/j.ssi.2011.04.006.

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4

Fischer, Curt R., and Steffen Schaffer. "Editorial overview: Chemical biotechnology: The expansion of chemical biotechnology." Current Opinion in Biotechnology 30 (December 2014): v—vii. http://dx.doi.org/10.1016/j.copbio.2014.10.009.

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5

Bakos, Robert J., and Richard G. Morgan. "Chemical recombination in an expansion tube." AIAA Journal 32, no. 6 (1994): 1316–19. http://dx.doi.org/10.2514/3.12135.

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6

WORTHY, WARD. "Chemical Education Institute Plans Major Expansion." Chemical & Engineering News 63, no. 12 (1985): 38. http://dx.doi.org/10.1021/cen-v063n012.p038.

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7

Bishop, Sean R., Keith Duncan, and E. D. Wachsman. "Thermo-Chemical Expansion of SOFC Materials." ECS Transactions 1, no. 7 (2019): 13–21. http://dx.doi.org/10.1149/1.2215539.

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8

Chen, Jun, Lei Hu, Jinxia Deng, and Xianran Xing. "Negative thermal expansion in functional materials: controllable thermal expansion by chemical modifications." Chemical Society Reviews 44, no. 11 (2015): 3522–67. http://dx.doi.org/10.1039/c4cs00461b.

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9

Marrocchelli, Dario, Christodoulos Chatzichristodoulou, and Sean R. Bishop. "Defining chemical expansion: the choice of units for the stoichiometric expansion coefficient." Phys. Chem. Chem. Phys. 16, no. 20 (2014): 9229–32. http://dx.doi.org/10.1039/c4cp01096e.

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10

Marrocchelli, Dario, Nicola H. Perry, and Sean R. Bishop. "Understanding chemical expansion in perovskite-structured oxides." Physical Chemistry Chemical Physics 17, no. 15 (2015): 10028–39. http://dx.doi.org/10.1039/c4cp05885b.

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11

PARK, C., and A. JACOBSON. "Thermal and chemical expansion properties of LaSrFeTiO." Solid State Ionics 176, no. 35-36 (2005): 2671–76. http://dx.doi.org/10.1016/j.ssi.2005.08.003.

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12

Chen, Xinzhi, та Tor Grande. "Anisotropic Chemical Expansion of La1–xSrxCoO3−δ". Chemistry of Materials 25, № 6 (2013): 927–34. http://dx.doi.org/10.1021/cm304040p.

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13

Kholboeva, Nasiba Asrorovna, and Shokhrukh Baxrom Ugli Jumaev. "METHODS OF CHEMICAL EXPANSION OF ROOT CANALS." Multidisciplinary Journal of Science and Technology 4, no. 4 (2024): 391–94. https://doi.org/10.5281/zenodo.11099288.

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Chemical expansion techniques are integral to the success of root canal therapy, enhancing cleaning, shaping, and disinfection. This article explores prominent methods including sodium hypochlorite irrigation, ethylenediaminetetraacetic acid (EDTA) chelation, passive ultrasonic irrigation (PUI), sonic irrigation, and laser-activated irrigation (LAI). Sodium hypochlorite's antimicrobial properties dissolve organic matter, while EDTA chelates calcium ions, removing the smear layer. PUI utilizes ultrasonic energy for enhanced debris removal, while sonic and LAI employ sonic and laser energy, resp

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14

Grünwald, Eva, Ydalia Delgado Mercado та Christof Gattringer. "Taylor and fugacity expansion for the effective ℤ3 spin model of QCD at finite density". International Journal of Modern Physics A 29, № 32 (2014): 1450198. http://dx.doi.org/10.1142/s0217751x1450198x.

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Different series expansions in the chemical potential μ are studied and compared for an effective theory of QCD which has a flux representation where the complex action is overcome. In particular we consider fugacity series, Taylor expansion and a modified Taylor expansion and compare the outcome of these series to the reference results from a Monte Carlo simulation in the flux representation where arbitrary μ is accessible. It is shown that for most parameter values the fugacity expansion gives the best approximation to the data from the flux simulation, followed by our newly proposed modifie

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15

Wang, Dawei, Chuanming Du, Dongdong Feng, et al. "The Thermal Swelling Properties of Plant Chemical Alcohol Waste Liquid." Energies 12, no. 21 (2019): 4184. http://dx.doi.org/10.3390/en12214184.

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In the present study, the expansion characteristics of plant chemical alcohol waste liquid were experimentally studied with a vertical tube furnace system. The results showed that the droplet quality, heating temperature, and atmosphere directly influenced the droplet expansion. The droplet mass had nothing to do with the swelling volume index (SVI) but had a significant influence on the expansion time, with a larger droplet mass and longer expansion time. The heating temperature had a significant influence on the expansion characteristics of the waste liquid. As the heating temperature increa

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16

James, Christine, Yan Wu, Brian Sheldon та Yue Qi. "Computational Analysis of Coupled Anisotropic Chemical Expansion in Li2-XMnO3-δ". MRS Advances 1, № 15 (2016): 1037–42. http://dx.doi.org/10.1557/adv.2016.48.

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ABSTRACTDuring the activation and charge process, vacancies are generated in the Li2MnO3 component in lithium-rich layered cathode materials. The chemical expansion coefficient tensor associated with oxygen vacancies, lithium vacancies and a Li-O vacancy pair were calculated for Li2-xMnO3-δ. The chemical expansion coefficient was larger for oxygen vacancies than for lithium vacancies in most directions. Additionally, the chemical expansion coefficient for a Li-O vacancy pair was shown to not be a linear sum of the chemical expansion coefficients of the two vacancy types, suggesting that the ox

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17

FREEMANTLE, MICHAEL. "ZERO-EXPANSION CONDUCTOR." Chemical & Engineering News 81, no. 42 (2003): 6. http://dx.doi.org/10.1021/cen-v081n042.p006.

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18

Chen, Ting, Kwati Leonard, Kazunari Sasaki, Hiroshige Matsumoto, and Nicola H. Perry. "Tailoring Chemical Expansion in Zirconate-Cerate Proton Conductors." ECS Meeting Abstracts MA2018-01, no. 32 (2018): 1934. http://dx.doi.org/10.1149/ma2018-01/32/1934.

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Stoichiometric chemical expansion is the lattice expansion accompanying non-integer changes in stoichiometry, such as oxygen loss in mixed ionic and electronic conducting oxides, Li intercalation in battery electrodes, H uptake in hydrogen storage materials, or hydration in proton conductors. The coefficient of chemical expansion (CCE) normalizes this chemical strain (εC) to the compositional change, so for the case of hydration in proton conductors it can be defined as CCE = εC/Δ[(OH)• O]. The chemical stresses that develop from such compositional changes can be large enough to cause mechanic

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19

Kuhn, M., S. Hashimoto, K. Sato, K. Yashiro та J. Mizusaki. "Thermo-chemical lattice expansion in La0.6Sr0.4Co1−yFeyO3−δ". Solid State Ionics 241 (червень 2013): 12–16. http://dx.doi.org/10.1016/j.ssi.2013.03.023.

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20

Gauglitz, P. A., and E. E. Petersen. "Molar expansion in nonisothermal packed-bed chemical reactors." Chemical Engineering Science 41, no. 4 (1986): 757–64. http://dx.doi.org/10.1016/0009-2509(86)87155-x.

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21

Santiago-Medina, F. J., A. Tenorio-Alfonso, C. Delgado-Sánchez, et al. "Projectable tannin foams by mechanical and chemical expansion." Industrial Crops and Products 120 (September 2018): 90–96. http://dx.doi.org/10.1016/j.indcrop.2018.04.048.

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22

Schmalz, T. G., D. J. Klein, and B. L. Sandleback. "Chemical graph-theoretical cluster expansion and diamagnetic susceptibility." Journal of Chemical Information and Modeling 32, no. 1 (1992): 54–57. http://dx.doi.org/10.1021/ci00005a009.

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23

Ram, Mirit, and Yoed Tsur. "Eliminating chemical effects from thermal expansion coefficient measurements." Journal of Electroceramics 22, no. 1-3 (2008): 120–24. http://dx.doi.org/10.1007/s10832-008-9419-0.

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24

Karlsson, Ingemar, and Gunnar Smith. "Pre-Precipitation Facilitates Nitrogen Removal without Tank Expansion." Water Science and Technology 22, no. 7-8 (1990): 85–92. http://dx.doi.org/10.2166/wst.1990.0233.

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Chemically coagulated sewage water gives an effluent low in both suspended matter and organics. To use chemical precipitation as the first step in waste water treatment improves nitrification in the following biological stage. The precipitated sludge contains 75% of the organic matter in the sewage and can by hydrolysis be converted to readily degradable organic matter, which presents a valuable carbon source for the denitrification process. This paper will review experiences from full-scale applications as well as pilot-plant and laboratory studies.

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25

Karlsson, Ingemar, and Gunnar Smith. "Pre-Precipitation Facilitates Nitrogen Removal without Tank Expansion." Water Science and Technology 23, no. 4-6 (1991): 811–17. http://dx.doi.org/10.2166/wst.1991.0532.

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Chemically coagulated sewage water gives an effluent low in both suspended matter and organics. To use chemical precipitation as the first step in waste water treatment improves nitrification in the following biological stage. The precipitated sludge contains 75% of the organic matter in the sewage and can by hydrolysis be converted to readily degradable organic matter, which presents a valuable carbon source for the denitrification process. This paper will review experiences from full scale applications as well as pilot plant- and laboratory studies.

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26

Chen, Jun, Lei Hu, Jinxia Deng, and Xianran Xing. "ChemInform Abstract: Negative Thermal Expansion in Functional Materials: Controllable Thermal Expansion by Chemical Modifications." ChemInform 46, no. 30 (2015): no. http://dx.doi.org/10.1002/chin.201530262.

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27

Kahn, H., R. Ballarini, and A. H. Heuer. "Thermal Expansion of Low-pressure Chemical Vapor Deposition Polysilicon Films." Journal of Materials Research 17, no. 7 (2002): 1855–62. http://dx.doi.org/10.1557/jmr.2002.0274.

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Polysilicon films were deposited using low-pressure chemical vapor deposition (LPCVD) onto oxidized silicon substrates, after which substrate curvature as a function of temperature was measured. The curvatures changed with temperature, implying that the thermal expansion of LPCVD polysilicon differs from that of the single crystal silicon substrate. Further, polysilicon films with tensile residual stresses displayed an increased thermal expansion, while polysilicon films with compressive residual stresses displayed a decreased thermal expansion. Following high temperature annealing, the residu

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28

Chang, Kee-Chul, Brian J. Ingram, E. Mitchell Hopper, Miaolei Yan, Paul Salvador та Hoydoo You. "Potential Driven Chemical Expansion of La0.6Sr0.4Co1-xFexO3-δ Thin Films on Yttria Stabilized Zirconia". MRS Proceedings 1494 (2013): 259–64. http://dx.doi.org/10.1557/opl.2013.177.

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ABSTRACTTo better understand the response of oxygen vacancy concentration to applied potential, the lattice parameter of pulsed laser deposited La0.6Sr0.4Co1-xFexO3-δ thin films was monitored using in situ X-ray diffraction. We demonstrate that the chemical expansion under applied potential depends on the cathode morphology, which determines the contribution of different reaction pathways. We investigated applied potential dependent lattice expansion on La0.6Sr0.4Co1-xFexO3-δ with 3 different Co:Fe ratios in an attempt to connect bulk chemical expansion data to thin films. We find that the che

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29

Løken, Andreas, Sandrine Ricote, and Sebastian Wachowski. "Thermal and Chemical Expansion in Proton Ceramic Electrolytes and Compatible Electrodes." Crystals 8, no. 9 (2018): 365. http://dx.doi.org/10.3390/cryst8090365.

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This review paper focuses on the phenomenon of thermochemical expansion of two specific categories of conducting ceramics: Proton Conducting Ceramics (PCC) and Mixed Ionic-Electronic Conductors (MIEC). The theory of thermal expansion of ceramics is underlined from microscopic to macroscopic points of view while the chemical expansion is explained based on crystallography and defect chemistry. Modelling methods are used to predict the thermochemical expansion of PCCs and MIECs with two examples: hydration of barium zirconate (BaZr1−xYxO3−δ) and oxidation/reduction of La1−xSrxCo0.2Fe0.8O3−δ. Whi

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30

McKinstry, H. A., Lai Daik Chai, R. V. Sara, and K. E. Spear. "Relationship Between Thermal Expansion and Crystal Chemical Parameters in Diborides." Advances in X-ray Analysis 30 (1986): 503–10. http://dx.doi.org/10.1154/s0376030800021662.

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Thermal expansion is an interesting, ubiquitous and neglected property of materials. Recently, Lenain et al. (1985) and Limaye (1986) have been investigating anisotropy in the low-expansion structures of the sodium zirconium phosphate family. In the hexagonal structure one axis expands while another contracts. In going from the calcium to the strontium analog the anisotropy actually changes sign. A change in anisotropy between CrB2 and TiB2 had been observed by R.V. Sara (1960). The results in Fig. 1 obtained by high temperature x-ray diffraction measurements indicate that for TiB2 the thermal

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31

TREMBLAY, JEAN-FRANÇOIS. "Formosa Plastics Eyes Expansion." Chemical & Engineering News 75, no. 8 (1997): 22–24. http://dx.doi.org/10.1021/cen-v075n008.p022.

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32

ANDERSON, EARL. "Indonesia launches petrochemicals expansion." Chemical & Engineering News 68, no. 34 (1990): 16. http://dx.doi.org/10.1021/cen-v068n034.p016.

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33

REISCH, MARC. "Plastics recycling expansion planned." Chemical & Engineering News 68, no. 40 (1990): 5–6. http://dx.doi.org/10.1021/cen-v068n040.p005.

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34

Senn, Mark S., Claire A. Murray, Xuan Luo, et al. "Symmetry Switching of Negative Thermal Expansion by Chemical Control." Journal of the American Chemical Society 138, no. 17 (2016): 5479–82. http://dx.doi.org/10.1021/jacs.5b13192.

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35

Bishop, S. R., D. Marrocchelli, N. H. Perry, et al. "Chemical Expansion in SOFC Materials: Ramifications, Origins, and Mitigation." ECS Transactions 57, no. 1 (2013): 643–48. http://dx.doi.org/10.1149/05701.0643ecst.

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36

Marrocchelli, Dario, Sean R. Bishop, Harry L. Tuller, Graeme W. Watson, and Bilge Yildiz. "Charge localization increases chemical expansion in cerium-based oxides." Physical Chemistry Chemical Physics 14, no. 35 (2012): 12070. http://dx.doi.org/10.1039/c2cp40754j.

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37

Dubnikova, Faina, and Assa Lifshitz. "Ring Expansion in Methylene Pyrrole Radicals. Quantum Chemical Calculations." Journal of Physical Chemistry A 104, no. 3 (2000): 530–38. http://dx.doi.org/10.1021/jp992113e.

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38

IGUCHI, Fumitada, Tomoya ABE, Keiji YASHIRO, and Takashi NAKAMURA. "Chemical Expansion Properties in Rare-earth-doped Ceria Composites." Proceedings of Mechanical Engineering Congress, Japan 2017 (2017): S0420205. http://dx.doi.org/10.1299/jsmemecj.2017.s0420205.

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39

Qadri, S. B., C. Kim, E. F. Skelton, T. Hahn, and J. E. Butler. "Thermal expansion of chemical vapor deposition grown diamond films." Thin Solid Films 236, no. 1-2 (1993): 103–5. http://dx.doi.org/10.1016/0040-6090(93)90651-5.

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40

Krumdieck, S. P., H. M. Cave, S. Baluti, M. Jermy, and A. Peled. "Expansion transport regime in pulsed-pressure chemical vapor deposition." Chemical Engineering Science 62, no. 22 (2007): 6121–28. http://dx.doi.org/10.1016/j.ces.2007.07.003.

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41

Radatz, H., K. Kühne, G. Schembecker, and C. Bramsiepe. "Comparison of Capacity Expansion Strategies for Chemical Production Plants." Chemie Ingenieur Technik 88, no. 9 (2016): 1216–17. http://dx.doi.org/10.1002/cite.201650239.

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42

Williford, R. E., T. R. Armstrong, and J. D. Gale. "Chemical and Thermal Expansion of Calcium-Doped Lanthanum Chromite." Journal of Solid State Chemistry 149, no. 2 (2000): 320–26. http://dx.doi.org/10.1006/jssc.1999.8533.

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43

Radatz, Heiko, Kevin Kühne, Christian Bramsiepe, and Gerhard Schembecker. "Comparison of capacity expansion strategies for chemical production plants." Chemical Engineering Research and Design 143 (March 2019): 56–78. http://dx.doi.org/10.1016/j.cherd.2018.12.018.

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44

Zhuang, Yinyin, and Xiaoyu Shi. "Expansion microscopy: A chemical approach for super-resolution microscopy." Current Opinion in Structural Biology 81 (August 2023): 102614. http://dx.doi.org/10.1016/j.sbi.2023.102614.

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45

Atakan, Burak. "Compression–Expansion Processes for Chemical Energy Storage: Thermodynamic Optimization for Methane, Ethane and Hydrogen." Energies 12, no. 17 (2019): 3332. http://dx.doi.org/10.3390/en12173332.

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Several methods for chemical energy storage have been discussed recently in the context of fluctuating energy sources, such as wind and solar energy conversion. Here a compression–expansion process, as also used in piston engines or compressors, is investigated to evaluate its potential for the conversion of mechanical energy to chemical energy, or more correctly, exergy. A thermodynamically limiting adiabatic compression–chemical equilibration–expansion cycle is modeled and optimized for the amount of stored energy with realistic parameter bounds of initial temperature, pressure, compression

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46

Weiss, Daniel Alexander. "The thermodynamic limit of an ideal Bose gas by asymptotic expansions and spectral ζ-functions". Journal of Mathematical Physics 63, № 12 (2022): 123302. http://dx.doi.org/10.1063/5.0114640.

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We analyze the thermodynamic limit—modeled as the open-trap limit of an isotropic harmonic potential—of an ideal, non-relativistic Bose gas with a special emphasis on the phenomenon of Bose–Einstein condensation. This is accomplished by the use of an asymptotic expansion of the grand potential, which is derived by ζ-regularization techniques. Herewith, we can show that the singularity structure of this expansion is directly interwoven with the phase structure of the system: In the non-condensation phase, the expansion has a form that resembles usual heat kernel expansions. By this, thermodynam

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47

Klyndyuk, А. I., and Ya Yu Zhuravleva. "Thermal and chemical expansion of layered oxygen-deficient double perovskites." Proceedings of the National Academy of Sciences of Belarus, Chemical Series 60, no. 2 (2024): 95–104. http://dx.doi.org/10.29235/1561-8331-2024-60-2-95-104.

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Layered oxygen-deficient double perovskites (ODP) based on the rare-earth elements (REE), barium and 3d-metals (Fe, Co, Cu etc.) are characterized by high values of electrical conductivity and high electrochemical activity in oxygen reduction reaction, and are considered as prospective cathode materials for intermediate-temperature solid oxide fuel cells (SOFC) on the base of proton- and oxygen-ion conducting solid electrolytes (SE). Effective cathode materials should be thermomechanically compatible with materials of SE, which tаkes place when the values of their thermal expansion coefficient

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48

Wild, S., M. R. Abdi, and G. Leng-Ward. "Sulphate Expansion of Lime-Stabilized Kaolinite: II. Reaction Products and Expansion." Clay Minerals 28, no. 4 (1993): 569–83. http://dx.doi.org/10.1180/claymin.1993.028.4.07.

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AbstractThe results of detailed analyses of the samples discussed in part I are reported. The chemical, morphological and microstructural changes which occurred during moist curing and soaking have been determined using thermal analysis, X-ray powder diffraction analysis, and scanning and transmission electron microscopy combined with EDAX. The analytical results together with the physical observations have shown that the period of volume instability and swelling coincides with the period of gypsum consumption and ettringite formation. However, swelling is not caused by growth of crystalline e

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49

Jahan, Johannes, Ahmed Abuali, Szabolcs Borsányi, et al. "4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage." EPJ Web of Conferences 316 (2025): 06002. https://doi.org/10.1051/epjconf/202531606002.

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Although calculations of QCD thermodynamics from first-principle lattice simulations are limited to zero net-density due to the fermion sign problem, several methods have been developed to extend the equation of state (EoS) to finite values of the B, Q, S chemical potentials. Taylor expansion around µi = 0 (i = B, Q, S) enables to cover with confidence the region up to µi/T < 2.5. Recently, a new method has been developed to compute a 2D EoS in the (T, µB) plane. It was constructed through a T -expansion scheme (TExS), based on a resummation of the Taylor expansion, and is trusted up to den

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50

Carballosa, P., and José Luis García Calvo. "Effect of chemical admixtures on the expansion behavior and microstructure of K-type CSA expansive concrete." Journal of Building Engineering 104 (June 2025): 112454. https://doi.org/10.1016/j.jobe.2025.112454.

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