Journal articles: 'Mechanical activation'

1

Boldyrev, Vladimir V. "Mechanochemistry and Mechanical Activation." Materials Science Forum 225-227 (July 1996): 511–20. http://dx.doi.org/10.4028/www.scientific.net/msf.225-227.511.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Welham, N. J., and P. G. Chapman. "Mechanical activation of coal." Fuel Processing Technology 68, no. 1 (October 2000): 75–82. http://dx.doi.org/10.1016/s0378-3820(00)00106-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Baláž, P. "Mechanical activation in hydrometallurgy." International Journal of Mineral Processing 72, no. 1-4 (September 2003): 341–54. http://dx.doi.org/10.1016/s0301-7516(03)00109-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Kleiv, R. A., and M. Thornhill. "Mechanical activation of olivine." Minerals Engineering 19, no. 4 (April 2006): 340–47. http://dx.doi.org/10.1016/j.mineng.2005.08.008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Mucsi, Gábor. "Mechanical activation of power station fl y ash by grinding – A review." Epitoanyag - Journal of Silicate Based and Composite Materials 68, no. 2 (2016): 56–61. http://dx.doi.org/10.14382/epitoanyag-jsbcm.2016.10.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Nikolić, Violeta, Miroslav Komljenović, Nataša Džunuzović, and Tijana Ivanovic. "The Influence of Mechanical Activation of Fly Ash on the Toxic Metals Immobilization by Fly Ash-Based Geopolymers." Key Engineering Materials 761 (January 2018): 3–6. http://dx.doi.org/10.4028/www.scientific.net/kem.761.3.

Full text

Abstract:

This paper investigates the influence of mechanical activation of fly ash on the toxic metals immobilization by fly ash-based geopolymers. Fly ash was firstly mechanically and then alkali-activated. Mechanical activation of fly ash was conducted in a planetary ball mill. Alkali activation of fly ash was carried out at room temperature by use of sodium silicate solution as an activator. Toxic metals (Pb and Cr) were added in the form of water soluble salts during the synthesis of geopolymers. The immobilization process was assessed via investigation of the mechanical and leaching properties of geopolymers. Structural changes of geopolymers during the toxic metals immobilization were assessed by means of gas adsorption and SEM analyses. Mechanical activation of fly ash led to a significant increase in geopolymer strength and to a reduced leaching of toxic metals from geopolymers.

APA, Harvard, Vancouver, ISO, and other styles

7

Heah, Cheng Yong, Hussen Kamarudin, Mohd Mustafa Al Bakri Abdullah, Mohammed Binhussain, Luqman Musa, Ismail Khairul Nizar, Che Mohd Ruzaidi Ghazali, and Y. M. Liew. "Effect of Mechanical Activation on Kaolin-Based Geopolymers." Advanced Materials Research 479-481 (February 2012): 357–61. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.357.

Full text

Abstract:

Raw materials kaolin was subjected to mechanical modification; the effect of the mechanical activation of kaolin on the compressive strength and morphological properties of the geopolymers has been studied. Mechanical activation of the kaolin results in particle size reduction and morphology changes with increase in reactivity. Mechanical activated kaolin has overall higher strength gain compared to raw kaolin. Wider particle size distribution and some spherical particles produced, promote a higher packaging density in the sample resulting in higher strength obtained. Mechanically activation of kaolin can be considered as an alternative method to achieve better geopolymerization reaction for kaolin-based geopolymer.

APA, Harvard, Vancouver, ISO, and other styles

8

Kajdas, Czesław. "Mechanical Activation of Chemical Process." Materials Sciences and Applications 06, no. 01 (2015): 60–67. http://dx.doi.org/10.4236/msa.2015.61008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Hara, Y., K. Ishizuka, K. KinositaJr., M. Yoshida, and H. Noji. "Mechanical Activation of F_1-motor." Seibutsu Butsuri 43, supplement (2003): S97. http://dx.doi.org/10.2142/biophys.43.s97_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Gbureck, Uwe, Jake E. Barralet, Michael Hofmann, and Roger Thull. "Mechanical Activation of Tetracalcium Phosphate." Journal of the American Ceramic Society 87, no. 2 (February 2004): 311–13. http://dx.doi.org/10.1111/j.1551-2916.2004.00311.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Sekulic, Zivko, Milan Petrov, and Deana Zivanovic. "Mechanical activation of various cements." International Journal of Mineral Processing 74 (December 2004): S355—S363. http://dx.doi.org/10.1016/j.minpro.2004.07.022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Podnar, S. "Mechanical activation of bulbocavernosus reflex." Electroencephalography and Clinical Neurophysiology 103, no. 1 (July 1997): 63. http://dx.doi.org/10.1016/s0013-4694(97)88186-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

CRAELIUS, W. "Mechanical activation of cardiac myocytes." Journal of Molecular and Cellular Cardiology 22 (March 1990): S33. http://dx.doi.org/10.1016/0022-2828(90)91406-w.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Khoroshavin, L. V., and V. A. Perepelitsyn. "Mechanical activation of periclase cements." Refractories 34, no. 3-4 (March 1993): 204–9. http://dx.doi.org/10.1007/bf01283142.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Berger, A., V. Boldyrev, and L. Menzheres. "Mechanical activation of β-spodumene." Materials Chemistry and Physics 25, no. 4 (July 1990): 339–50. http://dx.doi.org/10.1016/0254-0584(90)90123-r.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Corlett, Cole A., Matthias D. Frontzek, Nina Obradovic, Jeremy L. Watts, and William G. Fahrenholtz. "Mechanical Activation and Cation Site Disorder in MgAl2O4." Materials 15, no. 18 (September 16, 2022): 6422. http://dx.doi.org/10.3390/ma15186422.

Full text

Abstract:

The synthesis and crystallographic site occupancy were investigated for MgAl2O4 with and without mechanical activation of the precursor powders. Heating to 1200 °C or higher resulted in the formation of a single spinel phase regardless of whether the powders were mechanically activated or not. Neutron diffraction analysis was used to determine cation site occupancy and revealed that mechanical activation resulted in a lower degree of cation site inversion compared to the nonactivated materials, which indicated that the powders were closer to thermodynamic equilibrium. This is the first study to characterize the effects of mechanical activation on crystallographic site occupancy in magnesium aluminate spinel using neutron diffraction.

APA, Harvard, Vancouver, ISO, and other styles

17

Bernard, Frédéric, Sébastien Paris, and Eric Gaffet. "Mechanical Activation as a New Method for SHS." Advances in Science and Technology 45 (October 2006): 979–88. http://dx.doi.org/10.4028/www.scientific.net/ast.45.979.

Full text

Abstract:

The use of mechanical activation (the elemental powder mixture is milled for a short time at given frequency and impact energy) as a precursor to self-propagating high-temperature synthesis (SHS) results in the formation of nanostructured porous materials. The mechanical activation step was found necessary (i) to modify the thermal parameters of the combustion front (i.e. combustion front velocity, thermal heating rate…) in the cases of Mo-Si, Fe-Al, Ni-Si (ii) to initiate a combustion front in the case of systems having a low exothermicity. Nevertheless, the control of the mechanically activated mixture characteristics and, the understanding of the mechanical activation role on the SHS parameters are essential to produce end-products with expected microstructure.

APA, Harvard, Vancouver, ISO, and other styles

18

Chinelatto, Adriana Scoton Antonio, C. Lago, S. R. M. Antunes, A. C. Antunes, Osvaldo Mitsuyuki Cintho, and Adilson Luiz Chinelatto. "Synthesis of Alumina Powders by Mechanical Activation." Materials Science Forum 530-531 (November 2006): 655–60. http://dx.doi.org/10.4028/www.scientific.net/msf.530-531.655.

Full text

Abstract:

Alumina is utilized in many areas of modern industry because of its unique mechanical, electrical and optical properties. Various methods are been employed for produce alumina for different end uses. The preparation of fine and sintering-reactive alumina powders is probably one of the most important steps for production alumina ceramics with controlled microstructure. In this work, it was studied the production of alumina powders by “Pechini” method associated to highenergy milling. For this, it was prepared the resin by Pechini method, using aluminum nitrate nonahydrate. This resin was calcined at 500oC. Then, the calcined powders were submitted a high energy milling for different times. The powders mechanically activated were characterized by x ray diffraction, FT-IR and scanning electronic microscopic. After milling, the powders were calcined at 900oC. The results showed that the alumina phase transitions and powders characteristics were modified when the step of activation mechanical was introduced.

APA, Harvard, Vancouver, ISO, and other styles

19

Bebiya, Anastasiya G., Pavel Y. Gulyaev, and Irina V. Milyukova. "Change of physical and chemical properties clinoptilolite after mechanical activation." Yugra State University Bulletin 11, no. 2 (June 15, 2015): 58–61. http://dx.doi.org/10.17816/byusu201511258-61.

Full text

Abstract:

Presents experimental data depending on the specific surface area and sorption properties of the clinoptilolite powder mechanical activation times. Carried out X-ray diffraction and spec-troscopic analysis of mechanically activated zeolite. Find the optimal time and mechanical activation modes which relate the maximum sorption ability.

APA, Harvard, Vancouver, ISO, and other styles

20

Sisol, Martin, Juraj Mosej, Miroslava Drabová, and Ivan Brezani. "Effect of Mechanical Activation on Properties of Alkali Activated Binders." Advanced Materials Research 1000 (August 2014): 67–70. http://dx.doi.org/10.4028/www.scientific.net/amr.1000.67.

Full text

Abstract:

Effect of mechanical activation of fly ashes on strength of alkali activated binders is investigated. Four different kinds of fly ashes are mechanically activated. The aim of mechanical activation is to increase the reactivity of fly ashes. Mechanically activated fly ash is used as an admixture to the untreated original fly ash in proportion of 0, 50, 75 and 100 %. Fly ashes are alkali activated with solutions containing sodium hydroxide and sodium water glass. Compressive and flexural strength is tested on hardened alkali activated binders.

APA, Harvard, Vancouver, ISO, and other styles

21

Long, Xiang Li, Yan Sheng Li, Qing Yan Liang, Mei Lin Chen, and Hong Gao. "Study on Mechanically Activated Dioscorea Fiber and Analysis of Activation Energy." Materials Science Forum 984 (April 2020): 168–73. http://dx.doi.org/10.4028/www.scientific.net/msf.984.168.

Full text

Abstract:

Microtopography of fiber of Discorea nipponica Makino before and after mechanical activated by AGO-2 planetary mill was observed by SEM, and they changed the thick floccules to fine particles (D50 particle sizes were 10.18μm). Discorea fiber powder after mechanical activation had a narrow size distribution. According to XRD, the granularity and structures of discorea fiber with and without mechanical activation significantly differed, and the crystalline of discorea fiber was significantly converted into amorphous state after mechanical activation. On the basis of TG–DSC analysis, the activity of discorea fiber was enhanced, and certain internal energy were stored, and complete decomposition in advance. According to FT-IR, none of the functional groups of the mechanically activated discorea fiber disappeared, and no new functional groups appeared, which indicate that mechanical activation does not induce a chemical transformation of discorea fiber. According to the activation energy analysis, the thermal activation energy of dioscorea fiber after mechanical activation was18.49 kJ•mol, and the mechanical transfer activation energy was 56.06 kJ•mol, indicating that about 1/3 of the mechanical transfer activation energy was stored in the activated dioscorea fiber fine powder in the form of surface energy and internal energy.

APA, Harvard, Vancouver, ISO, and other styles

22

Rivas-Marquez, Riva, Carlos Gomez-Yanez, Ivan Velasco-Davalos, and Jesus Cruz-Rivera. "Reactive Milling and Mechanical Alloying in Electroceramics." Advances in Science and Technology 63 (October 2010): 420–24. http://dx.doi.org/10.4028/www.scientific.net/ast.63.420.

Full text

Abstract:

Using Mechanical Activation it is possible to obtain small grain size and good homogeneity in a ceramic piece. For ZnO varistor devices Mechanical Activation appears to be a good fabrication technique, since good homogeneity and small grain sizes are advantageous microstructural features. The typical formulation is composed by ZnO, Bi2O3, Sb2O3, CoO, MnO2 and Cr2O3 as raw materials, and during sintering, several dissolutions and reactions to form pyrochlore and spinel phases occur. When Mechanical Activation is applied to the entire formulation, it is difficult to know what processes are being mechanically activated due to the complexity of the system. The aim of the present work was to clarify how the mechanical activation is taking place in a typical ZnO varistor formulation. The methodology consisted in the formation of all possible combinations of two out of the five oxides above mentioned and to apply mechanical activation on the mixture of each pair of powders. The results showed that systems containing Bi2O3 are prone to react during mechanical activation. Also, reduction reactions were observed in MnO2. In addition, the powder mixture corresponding to the whole formulation was milled in a planetary mill, pressed and sintered, and varistor devices were fabricated. Improvement in the nonlinearity coefficient and breakdown voltage was observed.

APA, Harvard, Vancouver, ISO, and other styles

23

Kuzmenkov, O. A., and A. M. Kalinkin. "Solid-phase synthesis of ytterbium zirconate using mechanical activation." Transaction Kola Science Centre 12, no. 2-2021 (December 13, 2021): 154–58. http://dx.doi.org/10.37614/2307-5252.2021.2.5.031.

Full text

Abstract:

Nanocrystalline ytterbium zirconate Yb4Zr3O12 was prepared by the solid-phase method using mechanical activation of stoichiometric mixture of zirconium and ytterbium oxides. Mechanical activation was carried out in an AGO-2 centrifugal-planetary mill at a centrifugal factor of 40 g for 10 min. The processes occurring during the calcination of the mechanically activated mixture of ytterbium and zirconium oxides in the range from 600 to 1300 °C were investigated using X-ray phase analysis, IR spectroscopy, and complex thermal analysis.

APA, Harvard, Vancouver, ISO, and other styles

24

You, Jae-Sung, Hannah C. Lincoln, Chan-Ran Kim, John W. Frey, Craig A. Goodman, Xiao-Ping Zhong, and Troy A. Hornberger. "The Role of Diacylglycerol Kinase ζ and Phosphatidic Acid in the Mechanical Activation of Mammalian Target of Rapamycin (mTOR) Signaling and Skeletal Muscle Hypertrophy." Journal of Biological Chemistry 289, no. 3 (December 3, 2013): 1551–63. http://dx.doi.org/10.1074/jbc.m113.531392.

Full text

Abstract:

The activation of mTOR signaling is essential for mechanically induced changes in skeletal muscle mass, and previous studies have suggested that mechanical stimuli activate mTOR (mammalian target of rapamycin) signaling through a phospholipase D (PLD)-dependent increase in the concentration of phosphatidic acid (PA). Consistent with this conclusion, we obtained evidence which further suggests that mechanical stimuli utilize PA as a direct upstream activator of mTOR signaling. Unexpectedly though, we found that the activation of PLD is not necessary for the mechanically induced increases in PA or mTOR signaling. Motivated by this observation, we performed experiments that were aimed at identifying the enzyme(s) that promotes the increase in PA. These experiments revealed that mechanical stimulation increases the concentration of diacylglycerol (DAG) and the activity of DAG kinases (DGKs) in membranous structures. Furthermore, using knock-out mice, we determined that the ζ isoform of DGK (DGKζ) is necessary for the mechanically induced increase in PA. We also determined that DGKζ significantly contributes to the mechanical activation of mTOR signaling, and this is likely driven by an enhanced binding of PA to mTOR. Last, we found that the overexpression of DGKζ is sufficient to induce muscle fiber hypertrophy through an mTOR-dependent mechanism, and this event requires DGKζ kinase activity (i.e. the synthesis of PA). Combined, these results indicate that DGKζ, but not PLD, plays an important role in mechanically induced increases in PA and mTOR signaling. Furthermore, this study suggests that DGKζ could be a fundamental component of the mechanism(s) through which mechanical stimuli regulate skeletal muscle mass.

APA, Harvard, Vancouver, ISO, and other styles

25

Rakić, Jelena, and Zvezdana Baščarević. "Improving properties of high volume fly ash binder by mechanical and chemical activation." Tehnika 75, no. 6 (2020): 553–59. http://dx.doi.org/10.5937/tehnika2005553r.

Full text

Abstract:

High volume fly ash (FA) binders are characterized by long setting times and low early strength. By applying mechanical and/or chemical activation methods, it is possible to increase the reactivity of FA and improve the properties of the binder. In this paper, influence of mechanical activation of FA on the properties of binders prepared with 70% FA and 30% Portland cement was investigated. Additionally, effect of chemical activation of the binder by using sodium sulfate as activator was evaluated. The binder obtained by combining mechanical and chemical activation had the highest early strength (up to 7 days) and the shortest setting times. However, the highest strength of the binder after 90 days was obtained by applying only mechanical activation of FA.

APA, Harvard, Vancouver, ISO, and other styles

26

Lesnikova, Nataliya, Olga Chugunova, Valentina Lapina, Tatiana Kotova, and Ekaterina Pastushkova. "Mechanical activation in utilising milling byproducts: a way to improve effectiveness." E3S Web of Conferences 296 (2021): 07012. http://dx.doi.org/10.1051/e3sconf/202129607012.

Full text

Abstract:

The study focuses on obtaining the finely ground wheat germ flour mix by employing dry mechanical activation. During the study, wheat germ is ground using DESI-11 disintegrator and mechanically activated in PM-10 centrifugal mill with the rotor speed of 1050 rpm. According to the study findings, the finely ground wheat germ flour mix obtained by dry mechanical activation possesses increased bulk density and improved water absorption capacity when compared to the product obtained from wheat germ without mechanical activation applied. The average particle size is reduced from 114 μm to 52 μm. The study findings indicate that obtaining the finely ground wheat germ flour mix by dry mechanical activation prevents the occurrence of the caking effect as well as improves the quality of baked products.

APA, Harvard, Vancouver, ISO, and other styles

27

Neves, Filipe, Francisco Manuel Braz Fernandes, and Jose Brito Correia. "Effect of Mechanical Activation on Ti-50Ni Powder Blends Reactivity." Materials Science Forum 636-637 (January 2010): 544–49. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.544.

Full text

Abstract:

In the present study, equiatomic powder blends of Ni and Ti were mechanically activated for a short period of time in a planetary ball mill using different levels of energy input. The characterization of the mechanically activated materials was achieved by scanning electron microscopy, X-ray diffraction, differential thermal analysis and chemical analysis (oxygen and nitrogen measurements). During mechanical activation no phase transformation was induced and the high temperature reaction between Ni and Ti elemental powders was shifted to lower temperatures. Moreover, the temperature and the intensity of the exothermic reaction, i.e. the reactivity observed in the powder blends, decreased with the increase in the level of milling energy input. A maximum oxygen content of 0.39 wt% was measured after mechanical activation.

APA, Harvard, Vancouver, ISO, and other styles

28

Lukhanin, M. V. "Producing mullite nanopowders by mechanical activation." Steel in Translation 38, no. 8 (August 2008): 618–22. http://dx.doi.org/10.3103/s0967091208080081.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Saito, Fumio. "Mechanical Activation of Solids by Grinding." Journal of the Society of Powder Technology, Japan 49, no. 3 (2012): 226–31. http://dx.doi.org/10.4164/sptj.49.226.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Setoudeh, Nader, Ataollah Nosrati, and Nicholas J. Welham. "Enhancing lithium leaching by mechanical activation." Mongolian Journal of Chemistry 19, no. 45 (December 28, 2018): 44–48. http://dx.doi.org/10.5564/mjc.v19i45.1090.

Full text

Abstract:

The lithium (Li) bearing minerals lepidolite and spodumene were mixed with different mass ratios of Na2SO4 and mechanically activated by milling in a planetary ball mill for 5 h. The milled samples were studied using thermogravimetry under an air atmosphere up to 950 ºC. Isothermal heating of the milled samples was undertaken in a furnace at temperatures of 700 ºC and 800 ºC for 1 h. Hot water leaching of the calcines indicated that increasing the calcination temperature had a significant effect on the dissolution of lithium. The leaching of lithium from lepidolite was notably higher than that from spodumene.

APA, Harvard, Vancouver, ISO, and other styles

31

Michoinová, D., and R. Nečas. "Mechanical activation of frozen lime putties." IOP Conference Series: Materials Science and Engineering 379 (June 2018): 012009. http://dx.doi.org/10.1088/1757-899x/379/1/012009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Vorobyov, Yu, S. Mishchenko, and D. Zavrazhin. "Mechanical Activation of Hydrocarbon Motor Fuels." IOP Conference Series: Earth and Environmental Science 272 (June 21, 2019): 032067. http://dx.doi.org/10.1088/1755-1315/272/3/032067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Wang, Yingxiao, Elliot L. Botvinick, Yihua Zhao, Michael W. Berns, Shunichi Usami, Roger Y. Tsien, and Shu Chien. "Visualizing the mechanical activation of Src." Nature 434, no. 7036 (April 2005): 1040–45. http://dx.doi.org/10.1038/nature03469.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Boldyrev, Vladimir V. "Mechanochemistry and mechanical activation of solids." Russian Chemical Reviews 75, no. 3 (March 31, 2006): 177–89. http://dx.doi.org/10.1070/rc2006v075n03abeh001205.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Lessey, Elizabeth C., Christophe Guilluy, and Keith Burridge. "From Mechanical Force to RhoA Activation." Biochemistry 51, no. 38 (September 10, 2012): 7420–32. http://dx.doi.org/10.1021/bi300758e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Temuujin, J., K. J. D. MacKenzie, G. Burmaa, D. Tsend-Ayush, Ts Jadambaa, and A. van Riessen. "Mechanical activation of MoS2+Na2O2 mixtures." Minerals Engineering 22, no. 4 (March 2009): 415–18. http://dx.doi.org/10.1016/j.mineng.2008.10.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Hela, Rudolf, and Denisa Orsáková. "The Mechanical Activation of Fly Ash." Procedia Engineering 65 (2013): 87–93. http://dx.doi.org/10.1016/j.proeng.2013.09.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Chen, Y., T. Hwang, M. Marsh, and J. S. Williams. "Study on mechanism of mechanical activation." Materials Science and Engineering: A 226-228 (June 1997): 95–98. http://dx.doi.org/10.1016/s0921-5093(97)80028-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Elson, E. L., C. Pasternak, Z. Y. Liu, J. I. Young, B. Schwab, G. S. Worthen, G. Downey, et al. "Activation of mechanical responses in leukocytes." Biorheology 27, no. 6 (December 1, 1990): 849–58. http://dx.doi.org/10.3233/bir-1990-27605.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

JUHÁSZ, ZOLTÁN A. "COLLOID-CHEMICAL ASPECTS OF MECHANICAL ACTIVATION." Particulate Science and Technology 16, no. 2 (April 1998): 145–61. http://dx.doi.org/10.1080/02726359808906792.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Akmaev, O. K., and V. I. Popov. "Electrodeposition of metals with mechanical activation." Russian Engineering Research 29, no. 12 (December 2009): 1296–97. http://dx.doi.org/10.3103/s1068798x09120247.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

BOLDYREV, V. "Mechanochemistry and mechanical activation of solids." Solid State Ionics 63-65 (September 1993): 537–43. http://dx.doi.org/10.1016/0167-2738(93)90157-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Tolar, Pavel. "Mechanical Forces in B cell Activation." Biophysical Journal 108, no. 2 (January 2015): 12a. http://dx.doi.org/10.1016/j.bpj.2014.11.090.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Velciu, Georgeta, Alina Melinescu, Virgil Marinescu, and Maria Preda. "LaCoO3 synthesis by intensive mechanical activation." Ceramics International 41, no. 5 (June 2015): 6876–81. http://dx.doi.org/10.1016/j.ceramint.2015.01.138.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Nizevičienė, Dalia, Danutė Vaičiukynienė, Andrius Kielė, and Vilimantas Vaičiukynas. "Mechanical Activation on Phosphogypsum: Hydrosodalite System." Waste and Biomass Valorization 10, no. 11 (May 18, 2018): 3485–91. http://dx.doi.org/10.1007/s12649-018-0339-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Prinzen, Frits W., Wilco Kroon, and Angelo Auricchio. "U-Shaped Mechanical Activation 4 U?" JACC: Cardiovascular Imaging 6, no. 8 (August 2013): 874–76. http://dx.doi.org/10.1016/j.jcmg.2012.12.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Sajedi, Fathollah. "Mechanical activation of cement–slag mortars." Construction and Building Materials 26, no. 1 (January 2012): 41–48. http://dx.doi.org/10.1016/j.conbuildmat.2011.05.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Boldyrev, V. V. "Mechanochemistry and mechanical activation of solids." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 39, no. 10 (October 1990): 2029–44. http://dx.doi.org/10.1007/bf01557732.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Matsuoka, Mitsuaki, Kaho Yokoyama, Kohei Okura, Norihiro Murayama, Masato Ueda, and Makio Naito. "Synthesis of Geopolymers from Mechanically Activated Coal Fly Ash and Improvement of Their Mechanical Properties." Minerals 9, no. 12 (December 16, 2019): 791. http://dx.doi.org/10.3390/min9120791.

Full text

Abstract:

Coal fly ash is a spherical fine powder by-product discharged from coal-fired power plants. When coal fly ash is used as raw materials for the synthesis of geopolymers, there are practical problems associated with the stable surface of the particles that do not allow the production of geopolymers with sufficient strength. A long-time is also required for the curing. In this study, we aim to promote the curing reaction of geopolymers by activating the surface of coal fly ash particles. By mechanically activating the surface of coal fly ash particles using an attrition-type mill, the dissolution of Si4+ and Al3+ in coal fly ash is promoted, and the acceleration of the reaction taking place during curing is also anticipated. The surface morphology and crystal phase of coal fly ash particles change with the use of an attrition-type mill. The mechanical activation results in improvement of the compressive strength and the acid resistance under milder curing conditions by the densification of the hardened body. Thus, it is clearly shown that mechanical activation is effective for the production of geopolymers with beneficial mechanical properties under milder curing conditions.

APA, Harvard, Vancouver, ISO, and other styles

50

Akhgar, B. N., and P. Pourghahramani. "Impact of mechanical activation and mechanochemical activation on natural pyrite dissolution." Hydrometallurgy 153 (March 2015): 83–87. http://dx.doi.org/10.1016/j.hydromet.2015.02.010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Mechanical activation'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles