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Online since: September 2021
Authors: Ruslan A. Shetov, Svetlana Yu. Khashirova, Elina V. Khakyasheva
Comparison of thermogravimetric curves (Fig. 1 and Table 1) makes it possible to detect obvious differences both between stabilized and non-stabilized PEEK samples, and in the effectiveness of the stabilizers used.
The difference in the concentration dependence of the MFI of the PEEK samples stabilized with Ethaphos 368 is that first there is an increase in the viscosity of the melt to 1-1.25% of the stabilizer content; stabilizer.
It also lists the properties of PEEK stabilized with 1% Hostanox “P-EPQ.
Efficiency and mechanism of phosphorous antioxidants in Phillips type polyethylene, Polymer degradation and stability 91, 3 (2006) 479 [13] Zhou Zheng, Zhou Fu-gui, Zhang Shu-ling, Mu Jian-xin, Yue Xi-gui and Wang Gui-bin.
Chinese Universities. 21-1 (2005) 109
The difference in the concentration dependence of the MFI of the PEEK samples stabilized with Ethaphos 368 is that first there is an increase in the viscosity of the melt to 1-1.25% of the stabilizer content; stabilizer.
It also lists the properties of PEEK stabilized with 1% Hostanox “P-EPQ.
Efficiency and mechanism of phosphorous antioxidants in Phillips type polyethylene, Polymer degradation and stability 91, 3 (2006) 479 [13] Zhou Zheng, Zhou Fu-gui, Zhang Shu-ling, Mu Jian-xin, Yue Xi-gui and Wang Gui-bin.
Chinese Universities. 21-1 (2005) 109
Online since: October 2022
Authors: Roland Tolulope Loto, Muyiwa Fajobi, Olayemi Odunlami
The observations in Fig. 1(b) are generally similar to Fig. 1(a) with similar conclusions.
References [1] R.T.
Ahmad, Selection of materials for corrosive environment, Principles of Corrosion Engineering and Corrosion Control Chapter 9, 2006, pp. 479-549
Sci. 7(1) (2012) 9423-9440 [19] R.
URSS 1 (1934) 961–973.
References [1] R.T.
Ahmad, Selection of materials for corrosive environment, Principles of Corrosion Engineering and Corrosion Control Chapter 9, 2006, pp. 479-549
Sci. 7(1) (2012) 9423-9440 [19] R.
URSS 1 (1934) 961–973.
Online since: September 2008
Authors: Stéphane Mathieu, Pierre Steinmetz, Laurent Royer, Christophe Liebaut
The atmosphere was dry industrial air with a flux of 1.5lr/hr.
Fig. 1 shows the structure of three as cast Cr-Ni-Al alloys.
(a) Cr-5-5 (b) Cr-5-10 (c) Cr-10-10 Fig. 1.
Calculated NiAl-Cr diagram according to Dupin et al. [9] Sample Cr Ni Al Cr-5-5 91,4 ± 1,7 4,2 ± 1,1 4,4 ± 0,6 Cr-5-10 87,1 ± 1,2 3,9 ± 0,7 9,0 ± 0,5 Cr-5-15 80,9 ± 0,9 4,1 ± 0,4 15,0 ± 0,5 Cr-8-8 91,8 ± 0,9 3,1 ± 0,5 5,1 ± 0,4 Cr-10-10 89,8 ± 0,6 4,1 ± 0,4 6,1 ± 0,2 As-cast alloys are not at thermodynamic equilibrium: nevertheless, these observations are in relatively good agreement with the NiAl-Cr phase diagram (Fig. 2) provided by Dupin et al. [6] which states the maximum solubility of NiAl in chromia to 14at%.
-10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 Onset point : 1 435,05 °C Peak 1 top : 1 446,88 °C 1431°C 1404°C Heat Flow/ µV Temperature/ °C 1250 1300 1350 1400 1450 -10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 Onset point : 1 435,05 °C Peak 1 top : 1 446,88 °C 1431°C 1404°C Heat Flow/ µV Temperature/ °C 1250 1300 1350 1400 1450 Fig. 3.
Fig. 1 shows the structure of three as cast Cr-Ni-Al alloys.
(a) Cr-5-5 (b) Cr-5-10 (c) Cr-10-10 Fig. 1.
Calculated NiAl-Cr diagram according to Dupin et al. [9] Sample Cr Ni Al Cr-5-5 91,4 ± 1,7 4,2 ± 1,1 4,4 ± 0,6 Cr-5-10 87,1 ± 1,2 3,9 ± 0,7 9,0 ± 0,5 Cr-5-15 80,9 ± 0,9 4,1 ± 0,4 15,0 ± 0,5 Cr-8-8 91,8 ± 0,9 3,1 ± 0,5 5,1 ± 0,4 Cr-10-10 89,8 ± 0,6 4,1 ± 0,4 6,1 ± 0,2 As-cast alloys are not at thermodynamic equilibrium: nevertheless, these observations are in relatively good agreement with the NiAl-Cr phase diagram (Fig. 2) provided by Dupin et al. [6] which states the maximum solubility of NiAl in chromia to 14at%.
-10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 Onset point : 1 435,05 °C Peak 1 top : 1 446,88 °C 1431°C 1404°C Heat Flow/ µV Temperature/ °C 1250 1300 1350 1400 1450 -10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 Onset point : 1 435,05 °C Peak 1 top : 1 446,88 °C 1431°C 1404°C Heat Flow/ µV Temperature/ °C 1250 1300 1350 1400 1450 Fig. 3.
Online since: November 2021
Authors: Emīls Bolmanis, Andris Kazaks, Oskars Grigs
Table 1.
Figure 1.
Acknowledgements This research was funded by European Regional Development Fund (ERDF) and Latvian State, Project agreement No. 1.1.1.2/16/I/001, research application No. 1.1.1.2/VIAA/1/16/186.
Cregg et al., High-level expression and efficient assembly of hepatitis B surface antigen in the methylotrophic yeast, Pichia pastoris, Bio/Technology. 5:5 (1987) 479–485
J. 30:1 (2016)
Figure 1.
Acknowledgements This research was funded by European Regional Development Fund (ERDF) and Latvian State, Project agreement No. 1.1.1.2/16/I/001, research application No. 1.1.1.2/VIAA/1/16/186.
Cregg et al., High-level expression and efficient assembly of hepatitis B surface antigen in the methylotrophic yeast, Pichia pastoris, Bio/Technology. 5:5 (1987) 479–485
J. 30:1 (2016)
Online since: May 2016
Authors: Juraj Bilčík, Katarína Gajdošová, Robert Sonnenschein
Constructional, technological and execution measures are used to control the temperature rising in WCS [1].
Major steps in WCS design process are shown in the diagram in Fig. 1.
Table 1: Limiting crack width [4,5] Hydraulic gradient i =hw/t 1) Limiting crack width wlim [mm] ≤ 10 0,20 > 10 to ≤ 15 0,15 > 15 to ≤ 25 0,10 1) hw – groundwater height t - member thickness (wall, foundation slab) Table 1: Limiting crack width terrain level groundwater level t1 hw11 hw22 t2 Hydraulic gradient i =hw/t 1) Limiting crack width wlim [mm] ≤ 10 0.20 > 10 to ≤ 15 0.15 > 15 to ≤ 25 0.10 1) hw – groundwater height t – element thickness (wall, foundation) Figure 6: Determination of the groundwater gradient and limiting crack width Steel reinforcement will not prevent cracking.
References [1] N.
Beton- und Stahlbetonbau 101, Heft 7/2006, pp. 479-489
Major steps in WCS design process are shown in the diagram in Fig. 1.
Table 1: Limiting crack width [4,5] Hydraulic gradient i =hw/t 1) Limiting crack width wlim [mm] ≤ 10 0,20 > 10 to ≤ 15 0,15 > 15 to ≤ 25 0,10 1) hw – groundwater height t - member thickness (wall, foundation slab) Table 1: Limiting crack width terrain level groundwater level t1 hw11 hw22 t2 Hydraulic gradient i =hw/t 1) Limiting crack width wlim [mm] ≤ 10 0.20 > 10 to ≤ 15 0.15 > 15 to ≤ 25 0.10 1) hw – groundwater height t – element thickness (wall, foundation) Figure 6: Determination of the groundwater gradient and limiting crack width Steel reinforcement will not prevent cracking.
References [1] N.
Beton- und Stahlbetonbau 101, Heft 7/2006, pp. 479-489
Online since: April 2023
Authors: James Mark M. Gallawan, Chosel P. Lawagon
Additionally, Fig. 1 presents the stress-strain curve of the DRF.
References [1] H.
Sakdirat, Self-healing concrete, vol. 100, no. 1.
Kessler, "Self-healing: A new paradigm in materials design," Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, vol. 221, no. 4, pp. 479–495, 2007, doi: 10.1243/09544100JAERO172
Sukkathanyawat, "Kinetic Analysis of Durian Rind Pyrolysis Using Model-Free Method," in IOP Conference Series: Earth and Environmental Science, Dec. 2020, vol. 586, no. 1. doi: 10.1088/1755-1315/586/1/012002
References [1] H.
Sakdirat, Self-healing concrete, vol. 100, no. 1.
Kessler, "Self-healing: A new paradigm in materials design," Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, vol. 221, no. 4, pp. 479–495, 2007, doi: 10.1243/09544100JAERO172
Sukkathanyawat, "Kinetic Analysis of Durian Rind Pyrolysis Using Model-Free Method," in IOP Conference Series: Earth and Environmental Science, Dec. 2020, vol. 586, no. 1. doi: 10.1088/1755-1315/586/1/012002