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Online since: June 2013
Authors: Chao Xiong, Lei Chen, Xi Fang Zhu, Hong Chun Yuan, Jin Xiao, Li Hua Ding, Xiang Cai Zhou
The number of SILAR cycles is 100.
The preferential orientation of the β-CuSCN grains is observed along the (003) axis aligning with the growth direction.
The presence of a number of peaks in XRD pattern is the indication of polycrystalline nature of the CuSCN.
The preferential orientation of the β-CuSCN grains is observed along the (003) axis aligning with the growth direction.
The presence of a number of peaks in XRD pattern is the indication of polycrystalline nature of the CuSCN.
Online since: February 2019
Authors: E.A. Ivanaysky, Alexey V. Ishkov, A.A. Ivanaysky
The main welding methods are given in [1], as well as in the documents developed on its basis [2] and a number of other documents operating in different countries.
The presence of oxygen in the steels along with the oxidation of iron causes a direct oxidation of a number of alloying elements.
In the zone of thermal influence there is a zone of superheating with a vidmanstett structure and a zone of normalization with a characteristic fine-grained ferrite-pearlite structure.
The presence of oxygen in the steels along with the oxidation of iron causes a direct oxidation of a number of alloying elements.
In the zone of thermal influence there is a zone of superheating with a vidmanstett structure and a zone of normalization with a characteristic fine-grained ferrite-pearlite structure.
Online since: September 2013
Authors: Marie Kolaříková, Rostislav Chotěborský, Jarmila Savková, Barbora Bryksí Stunová
Number of indents was minimal 6.
Factorial regression analysis was used for determination of the variables effect on responses (Standard regression shouldn be used because for regression analysis is necessary evaluate a higher number of alloys).
With higher boron content, the continuous netlike structure along grains of eutectic high Fe2B has formed.
Factorial regression analysis was used for determination of the variables effect on responses (Standard regression shouldn be used because for regression analysis is necessary evaluate a higher number of alloys).
With higher boron content, the continuous netlike structure along grains of eutectic high Fe2B has formed.
Online since: April 2012
Authors: Noor Bahyah Ibrahim, Ftema W. Aldbea, Mustafa Hj. Abdullah, Ramadan E. Shaiboub
Some works have been done to study single crystal and polycrystalline in micrometer grain size range of Tb-YIG [9, 10].
The results were compared with the Joint Committee on Powder Diffraction Standard (JCPDS-ICDD; number 43-507) for pure YIG.
The Fe2O3 and YFeO3 peaks were confirmed by JCPDS number 39-1346 and 39-1489 confirm that they are Fe2O3 and YFeO3, respectively.
The results were compared with the Joint Committee on Powder Diffraction Standard (JCPDS-ICDD; number 43-507) for pure YIG.
The Fe2O3 and YFeO3 peaks were confirmed by JCPDS number 39-1346 and 39-1489 confirm that they are Fe2O3 and YFeO3, respectively.
Online since: December 2007
Authors: W. R. Tyson
The most vulnerable region is
normally the course grain HAZ region adjacent to the
fusion boundary, which sometimes fails by cleavage
fracture at the low design temperatures typical of northern
pipelines.
Although great strides have been made in fracture control, a number of improvements are still required.
A number of candidates have been suggested, among them the Tstress, Q-parameter, and A2.
Although great strides have been made in fracture control, a number of improvements are still required.
A number of candidates have been suggested, among them the Tstress, Q-parameter, and A2.
Study on the Carbon Doping of Sugar Added MgB2 Superconductors Prepared by Low Temperature Sintering
Online since: July 2014
Authors: Hui Yang, Zong Qing Ma, Rui Wang
The results show that carbon doping can be introduced effectively to replace part B atoms of MgB2 lattice to form a new flux pinning centers, and doping nano-SiC can further refine the grain of MgB2 and introduce nano-impurities.
From the area of the diffraction peak, both in the samples, MgB2 phase have appeared in large numbers.
This indicates that an effective carbon-doped was formed in the sample of sugar-doped high temperature sintering, the number of C went into the lattice of MgB2 and replaced part B, led to the lattice parameters of MgB2 was reduced, the peak position shifted to a high angle.
From the area of the diffraction peak, both in the samples, MgB2 phase have appeared in large numbers.
This indicates that an effective carbon-doped was formed in the sample of sugar-doped high temperature sintering, the number of C went into the lattice of MgB2 and replaced part B, led to the lattice parameters of MgB2 was reduced, the peak position shifted to a high angle.
Online since: January 2020
Authors: Kirill Karimov, Aleksei Kritskii, Stanislav Naboichenko
However, in a number of papers [11–13, 20] reports about significant acceleration of the process with the use of ultra-fine milling, acceptable for various materials.
After re-milling, the material was washed, dried, and then the effect of grain size on the rate of POX leaching was investigated.
Acknowledgements Research have been performed at Russian Science Foundation (RSCF) sposnorship (Project number: № 18-19-00186).
After re-milling, the material was washed, dried, and then the effect of grain size on the rate of POX leaching was investigated.
Acknowledgements Research have been performed at Russian Science Foundation (RSCF) sposnorship (Project number: № 18-19-00186).
Online since: August 2016
Authors: Li Bo Bian, Juan Hong Liu, Li Li
The results showed in Table4:
Table 4: The results of hydration heat test
ID
Peak
numbers
Time to peak
The highest heat release rate(J/gH)
The heat amount(J/g)
24h
48h
72h
1
1
13
9.7
172
234
259
2
2
15/35
4.66
81
164
196
3
2
14/34
4.70
87
175
210
4
2
12/28
5.07
90
158
185
5
2
13/25
4.77
99
155
181
6
2
12/25
4.33
86
141
167
7
2
10/24
4.41
83
135
151
8
2
9/27
3.8
75
128
155
9
2
12/30
2.71
58
108
133
10
2
15/32
2.33
42
90
113
From Table 4.
Table 5: The results of shrinkage rate(%) number 1 2 3 4 5 6 7 8 9 10 1 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.01 0.02 3 0.05 0.03 0.03 0.02 0.03 0.03 0.02 0.02 0.03 0.02 7 0.06 0.04 0.04 0.03 0.04 0.04 0.02 0.03 0.03 0.02 14 0.07 0.06 0.06 0.03 0.05 0.05 0.03 0.05 0.05 0.03 28 0.08 0.06 0.06 0.04 0.06 0.06 0.04 0.05 0.05 0.03 56 0.08 0.06 0.06 0.05 0.06 0.06 0.04 0.05 0.05 0.04 90 0.09 0.07 0.07 0.05 0.07 0.07 0.05 0.06 0.06 0.04 180 0.11 0.09 0.08 0.07 0.09 0.07 0.06 0.08 0.07 0.06 From Table 5, it can get that the biggest rate of the 180th self-construction is 0.11% of ID1.
The Grain Size of Mineral Admixtures Impacts on Mechanical Properties of Cement Paste and High-Performance Concrete Material.
Table 5: The results of shrinkage rate(%) number 1 2 3 4 5 6 7 8 9 10 1 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.01 0.02 3 0.05 0.03 0.03 0.02 0.03 0.03 0.02 0.02 0.03 0.02 7 0.06 0.04 0.04 0.03 0.04 0.04 0.02 0.03 0.03 0.02 14 0.07 0.06 0.06 0.03 0.05 0.05 0.03 0.05 0.05 0.03 28 0.08 0.06 0.06 0.04 0.06 0.06 0.04 0.05 0.05 0.03 56 0.08 0.06 0.06 0.05 0.06 0.06 0.04 0.05 0.05 0.04 90 0.09 0.07 0.07 0.05 0.07 0.07 0.05 0.06 0.06 0.04 180 0.11 0.09 0.08 0.07 0.09 0.07 0.06 0.08 0.07 0.06 From Table 5, it can get that the biggest rate of the 180th self-construction is 0.11% of ID1.
The Grain Size of Mineral Admixtures Impacts on Mechanical Properties of Cement Paste and High-Performance Concrete Material.
Online since: November 2016
Authors: Wei Ping Tong, Liang Zuo, Hai Zhi Li
The formation of nitride is advantageous for the performance of HVAS surface due to a large number of nitrogen forming elements in the presence of HVAS, but it is rarely reported in the field of nitriding of HVAS.
The presences of a large number of carbide-forming elements, such as chromium, molybdenum, vanadium, lead to the formation of hard carbide in the martensite [1].
It can be seen that the MC carbides have different morphologies, such as rod and globular morphology, which is distributed in the center of grains.
The presences of a large number of carbide-forming elements, such as chromium, molybdenum, vanadium, lead to the formation of hard carbide in the martensite [1].
It can be seen that the MC carbides have different morphologies, such as rod and globular morphology, which is distributed in the center of grains.
Online since: September 2017
Authors: Zh.A. Sapronova, D.V. Sapronov, Yu.L. Starostina
The number of withdrawn of natural minerals very often are so great that it leads to a violation of the natural landscape, changing of wild animals migration routes, habitats of flora distortion and a shift in the ecological balance of natural ecosystems as a whole.
Tests pigments - fillers offered by us (sample number 1 and 2) were investigated in the conditions of a production laboratory of "Quil paint factory", Belgorod, according to the following parameters: dispersibility, milling degree, relative viscosity, hardness, drying time, adhesion and elasticity.
Grain size, phase and oxide compounds of these wastes are presented in Fig.4, Table 2, 3.
Tests pigments - fillers offered by us (sample number 1 and 2) were investigated in the conditions of a production laboratory of "Quil paint factory", Belgorod, according to the following parameters: dispersibility, milling degree, relative viscosity, hardness, drying time, adhesion and elasticity.
Grain size, phase and oxide compounds of these wastes are presented in Fig.4, Table 2, 3.