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Online since: March 2008
Authors: Hua Zhang, Zhi Gang Jiang, Xiao Luo
Making tilt covers of platform with insulation materials, then transporting a large number of
ardent BTA chip directly into the spiral groove by a suction system may prevent the accumulation of
litter on platforms and other supported components.
There are many researches on high-performance cutter materials, such as ultra-fine grain carbide, ceramic and metal-ceramic cutter material, diamond and CBN.
There are many researches on high-performance cutter materials, such as ultra-fine grain carbide, ceramic and metal-ceramic cutter material, diamond and CBN.
Online since: June 2008
Authors: César A.C. Sequeira, L.F.F.T.T.G. Rodrigues
This haze is probably related to the crystalline grain size and
hopefully can be eliminated by changing the film deposition conditions.
The targeted goal for the number of quasi-reversible cyclic voltammograms (100,000 cycles) has been reached for our prepared PB systems deposited on Pt in the acidified solutions (pH ≅ 2).
The targeted goal for the number of quasi-reversible cyclic voltammograms (100,000 cycles) has been reached for our prepared PB systems deposited on Pt in the acidified solutions (pH ≅ 2).
Online since: January 2007
Authors: Yasuo Uchiyama, Hideaki Sano, Guo Bin Zheng, Mituyoshi Nagano, Shigeya Sakaguchi
The
size and number of these pores are different in each
specimen.
It is believed that the Al and O solid solution into crystal and grain boundary are not effective for the cutting performance, but the difference of mechanical properties depend on whether oxygen is introduced and this in turn contributes to improvement of the cutting Table 1 The mechanical properties of specimens and the amount of oxygen contained Density Hardness Bending strength Fracture toughness Mixed Raw powder oxygen Theoretical oxygen Sintered body oxygen content (by RECO) Name Solution z value g / cm 3 HRA MPa MPa / m 3/2 Mass% mass% mass% RN-1 0.1 3.238 93.5 870 6.35 3.10 2.65 3.01 RN-2 0.2 3.238 93.2 840 5.07 4.14 3.36 3.98 SN-1 0.1 3.238 93.5 820 6.21 3.12 2.65 3.13 SN-2 0.2 3.235 93.0 790 5.66 4.19 3.36 4.23 RO-1 0.1 3.238 93.1 800 6.59 3.10 2.65 3.24 RO-2 0.2 3.232 92.9 850 6.68 4.14 3.36 4.21 SO-1 SO-2 0.1 0.2 3.234 3.229 93.1 92.7 820 830 6.59 6.47 3.12 4.19 2.65 3.36 3.25 3.25
It is believed that the Al and O solid solution into crystal and grain boundary are not effective for the cutting performance, but the difference of mechanical properties depend on whether oxygen is introduced and this in turn contributes to improvement of the cutting Table 1 The mechanical properties of specimens and the amount of oxygen contained Density Hardness Bending strength Fracture toughness Mixed Raw powder oxygen Theoretical oxygen Sintered body oxygen content (by RECO) Name Solution z value g / cm 3 HRA MPa MPa / m 3/2 Mass% mass% mass% RN-1 0.1 3.238 93.5 870 6.35 3.10 2.65 3.01 RN-2 0.2 3.238 93.2 840 5.07 4.14 3.36 3.98 SN-1 0.1 3.238 93.5 820 6.21 3.12 2.65 3.13 SN-2 0.2 3.235 93.0 790 5.66 4.19 3.36 4.23 RO-1 0.1 3.238 93.1 800 6.59 3.10 2.65 3.24 RO-2 0.2 3.232 92.9 850 6.68 4.14 3.36 4.21 SO-1 SO-2 0.1 0.2 3.234 3.229 93.1 92.7 820 830 6.59 6.47 3.12 4.19 2.65 3.36 3.25 3.25
Online since: March 2010
Authors: Cengiz Kaya
In this way the desired number of layers (12 layers in the present work
to obtain 40 vol% fiber loading in the composite) was built up.
It is also seen from the TEM micrograph in Fig.3 that the grain size of the NdPO4 interface is about 200 nm which should act as a dense barrier preventing oxygen diffusion from the matrix through the fibres.
It is also seen from the TEM micrograph in Fig.3 that the grain size of the NdPO4 interface is about 200 nm which should act as a dense barrier preventing oxygen diffusion from the matrix through the fibres.
Online since: January 2012
Authors: Jie Liu, Jian Cai, Lei Xiao, Jian Lin Li, Shi Wei Luo
The lithologic characters in plant area are slightly weathered ash green banding mica marble and grey black medium-thick or thick fine-grained marble.
The finally determined network parameters are as follows: we assume that the learning rate of BP network is 0.906,the momentum factor is 0.906,the maximum training number is 3000,the error precision of network is 10-5.
The finally determined network parameters are as follows: we assume that the learning rate of BP network is 0.906,the momentum factor is 0.906,the maximum training number is 3000,the error precision of network is 10-5.
Online since: July 2010
Authors: Seiichiro Koda, Hiroshi Uchida, Hiroshi Funakubo, Yuki Mizutani
., Ti4+, Nb5+, or W
6+), and m is the
number of BO6 octahedral in pseudo perovskite blocks (m = 1, 2, 3, 4, etc.) [1-3].
The SrBi4Ti4O15 film prepared on (100)SrRuO3//(100)LaNiO3/(111)Pt/TiO2/(100)Si exhibited higher current density than that on (100)LaNiO3/(111)Pt/TiO2/(100)Si, which had unhomogeneous microstructure with rough grains rather than others.
The SrBi4Ti4O15 film prepared on (100)SrRuO3//(100)LaNiO3/(111)Pt/TiO2/(100)Si exhibited higher current density than that on (100)LaNiO3/(111)Pt/TiO2/(100)Si, which had unhomogeneous microstructure with rough grains rather than others.
Online since: November 2011
Authors: Li Chun Qiu, E Liu, Feng Lan Wei
In this point the grains of white cast iron grow to a big size because of the high temperature.
Firstly, a large number of carbide blocks are dissolved at the high austenitizing temperature, making the impact toughness of cast iron increased.
Firstly, a large number of carbide blocks are dissolved at the high austenitizing temperature, making the impact toughness of cast iron increased.
Online since: December 2006
Authors: Taku Miyahara, Noboru Egami, Hirohisa Kimachi, Yoshio Miyasaka, Koji Hatta
In contrast, FPB
treatment, where fine beads having a further small grain size of approximately 40 to 200µm are
collided at a rate of 100m/sec or more, is reported to have a variety of effects such as surface
roughness control, microstructual refinement, inducing phase transformation, and fine particle
material component diffusion in addition to the effect of shot peening.
In other words, the direct pressure type allows the fine particles to collide with the material surface at a higher rate in comparison with the gravity type and, therefore, the number of dents and bumps also become large along with extreme bending over to result in such a configuration.
In other words, the direct pressure type allows the fine particles to collide with the material surface at a higher rate in comparison with the gravity type and, therefore, the number of dents and bumps also become large along with extreme bending over to result in such a configuration.
Online since: December 2012
Authors: Zeng Li Liu, Xiao Peng Zhang, Huai Nian Xing, Hong Sheng Li
., have been studied for many years, and a number of literatures are available in these fields [1,2,3,4,5,6,7].
Table 1 Components and Parameters of soil specimen Type of Specimen Grain size[mm] Character index 5-2 2-0.5 0.5-0.25 0.25-0.075 0.075-0.005 <0.005 1 2 8.0% 17.5% 14.5% 20.0% 36.5% 3.0% 10.6% 25.0% 9.4% 15.6% 10.6% 22.3% 6.7% 15.6% The soil was undisturbed and was frozen in situ in winter.
Table 1 Components and Parameters of soil specimen Type of Specimen Grain size[mm] Character index 5-2 2-0.5 0.5-0.25 0.25-0.075 0.075-0.005 <0.005 1 2 8.0% 17.5% 14.5% 20.0% 36.5% 3.0% 10.6% 25.0% 9.4% 15.6% 10.6% 22.3% 6.7% 15.6% The soil was undisturbed and was frozen in situ in winter.
Online since: November 2014
Authors: Hai Yan Lei, Ping Feng, Hai Long Wei, Hai Zhou Yu, Guo Xiong Zhong
It is also seen that though the grains tend to become finer with the increase of Cr3C2 content and various phases are the most evenly distributed in the composition of 0.6% Cr3C2, which is consistent with the research by Yong Zheng [5] et al.
The research by Lin He et al [6] showed that Cr content is the most in the binder phase and the least in the hard phase and the number of Ti (C,N) particles decreases gradually from the binder phase and some Cr3C2 particle that are not totally dissolved are scattered in the binder phase and at the phase boundaries, thus refraining cracks, which is consistent with the conclusion that the KIC is the best in the composition of 1.2% Cr3C2.
The research by Lin He et al [6] showed that Cr content is the most in the binder phase and the least in the hard phase and the number of Ti (C,N) particles decreases gradually from the binder phase and some Cr3C2 particle that are not totally dissolved are scattered in the binder phase and at the phase boundaries, thus refraining cracks, which is consistent with the conclusion that the KIC is the best in the composition of 1.2% Cr3C2.