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Online since: August 2013
Authors: Xiao Hong Li, Ying Ge, Ya Kun Yan, Wen Cheng Zhao
It attracts a large number of domestic enterprises built or being built color coating production line.
Paint quality and viscosity:appropriate to reduce the viscosity of the coating application,to ensure the stability of the coating viscosity added a few times with thinner;tried to use fine-grained coating (preferably ≤ 20μm);keeps the construction process temperature stability.
Paint quality and viscosity:appropriate to reduce the viscosity of the coating application,to ensure the stability of the coating viscosity added a few times with thinner;tried to use fine-grained coating (preferably ≤ 20μm);keeps the construction process temperature stability.
Online since: September 2013
Authors: Salahuddin Junus, Eric Tanoto, Anne Zulfia, Lilis Mariani
As a result, refinement of α-Al grains and improving the distribution of reinforcement particles within the melt are the most important effects of vortex method [2].
Composite strength comes from its effectiveness in inhibiting the movement of dislocations, but by increasing numbers reinforced the function of it being effective Clumping and porosity of Al2O3 particles clearly visible especially on the volume fraction of 15% and 20% (Fig 3 (a,b)).
Composite strength comes from its effectiveness in inhibiting the movement of dislocations, but by increasing numbers reinforced the function of it being effective Clumping and porosity of Al2O3 particles clearly visible especially on the volume fraction of 15% and 20% (Fig 3 (a,b)).
Online since: February 2014
Authors: K.M. Hakim, M.H. Mamat, M.Z. Musa, M. Mazwan, M. Sobri, S. Najwa, M. Rusop, Ahmad Shuhaimi Abu Bakar, N. Ameera
Up to now, a number of ZnO nanostructures with different morphologies and interesting structure have been successfully synthesized with different methods [6-7].
A mixture of small and large grain features appeared on the ZnO surface with the individual size range of 30 – 96 nm.
A mixture of small and large grain features appeared on the ZnO surface with the individual size range of 30 – 96 nm.
Online since: September 2013
Authors: Zhao Yu Wu, Neng Wei Wang, Zai Chun Huang, Xu Mei Cui
A large number of literature reports indicate that the experimental special capacity can reach 150~l60mAh/g.
The scanning electron microscope (SEM, VEGA II XMH) was used to observe the grain morphology.The electrochemical properties of Li4Ti5O12 electrodes were determined from Li/1 M LiPF6 in ethylene carbonate and diethy carbonate (EC-DEC 1:1 w/w)/ Li4Ti5O12 cells by using a LAND Battery Program-control Test System.
The scanning electron microscope (SEM, VEGA II XMH) was used to observe the grain morphology.The electrochemical properties of Li4Ti5O12 electrodes were determined from Li/1 M LiPF6 in ethylene carbonate and diethy carbonate (EC-DEC 1:1 w/w)/ Li4Ti5O12 cells by using a LAND Battery Program-control Test System.
Online since: December 2016
Authors: Luboš Náhlík, Pavel Hutař, Raúl Bermejo, Zdeněk Majer, Kateřina Štegnerová
For example in the microelectronics, low temperature co-fired ceramics (LTCC) consisting of ceramic grains (alumina) embedded in a glass matrix (borosilicate glass) are used as substrate material for production of printed circuit boards [10].
Numbers of criteria exist in the literature for the determination of crack propagation direction.
Numbers of criteria exist in the literature for the determination of crack propagation direction.
Online since: August 2016
Authors: Pongkaew Udomsamuthirun, Piyamas Chainok, Thitipong Kruaehong, Tunyanop Nilkamjon, Wirat Wongphakdee, Somporn Tiyasri, Adullawich Kaewkao, Chalit Wanichayanan, Theerathawan Panklang, Rattanasuda Supadanaison
They found that the grain size is increase with Ag doping until the maximum value then decrease.
Recently, the new formula of YBaCuO superconductor were synthesized as Y5-6-11, Y7-9-16,Y358, Y5-8-13, Y7-11-18, Y156, Y3-8-11, and Y13-20-23, where the numbers indicate Y, Ba, and Cu atoms respectively [10, 11].
Recently, the new formula of YBaCuO superconductor were synthesized as Y5-6-11, Y7-9-16,Y358, Y5-8-13, Y7-11-18, Y156, Y3-8-11, and Y13-20-23, where the numbers indicate Y, Ba, and Cu atoms respectively [10, 11].
Online since: March 2012
Authors: Vinay Gupta, Kuldeep Chand Verma, Jasneet Kaur, R.K. Kotnala
The diameter of the SCC54 nanorods lies in the range of 15-20 nm and length of 150-200 nm whereas SFC54 consist of two morphologies, nanospheres and nanorods (average grains size 11 nm); nanorods of diameter is 5-15 nm and length 50-100 nm.
This would eventually lead to the formation of a significant number of trapped states which form a series of metastable energy levels within the band gap, resulting in a strong PL signal at room temperature.
This would eventually lead to the formation of a significant number of trapped states which form a series of metastable energy levels within the band gap, resulting in a strong PL signal at room temperature.
Online since: October 2007
Authors: Ming Fu Fu, Fa Yun Zhang, Guo Xiang Chen, Hong Yan
The important reason was a large of dislocations formed in magnesium matrix composite
grains, and the number of dislocation could be enhanced with the increasing of particulate content.
Online since: November 2007
Authors: Kazuyuki Hokamoto, Mitsuhiro Matsuda, Minoru Nishida, Shahin Khameneh Asl, Ryuichi Tomoshige, M. Heydarzadeh Sohi
The effects of heat treatment on the WC-Co sprayed coatings have been studied by a number of
researches [10-16].
Phase transformation mechanism by heat treatment from WC or W2C to Co3W3C seems to be a share mechanism, because of the defects and shape of the grains.
Phase transformation mechanism by heat treatment from WC or W2C to Co3W3C seems to be a share mechanism, because of the defects and shape of the grains.
Online since: June 2012
Authors: Yutaka Yamagata, Shinya MORITA, Hirofumi Suzuki, Mutsumi Okada, Tatsuya Furuki
In the conventional dressing process of a resinoid bonded diamond wheel, the abrasives on the wheel surface are sharpened and the acting abrasive number increases on the wheel surface due to rubbing by the GC dresser.
Table 1 Grinding conditions Wheel Grain size Diameter Rotational speed Resinoid diamond wheel SDC1200 Φ70 mm 12000 min-1 Work piece Rotational speed Binderless tungsten carbide 500 min-1 Depth of cut 0.5 μm/pass Feed rate 0.5 mm/min Coolant Solution type 10mm 0.5 mm Approximate radius: 100 mm Φ50 mm Fig. 6 Geometry and view of Fresnel lens mould for structured grinding. 0 100 100 0 60 0 90 0 100 70 bottom side surface outer side surface outer side surface bottom side surface μm μm Fig. 7 Comparison of the diamond wheel edge of before truing and after truing Figure 8(a) shows a measured profile of the ground Fresnel mould.
Table 1 Grinding conditions Wheel Grain size Diameter Rotational speed Resinoid diamond wheel SDC1200 Φ70 mm 12000 min-1 Work piece Rotational speed Binderless tungsten carbide 500 min-1 Depth of cut 0.5 μm/pass Feed rate 0.5 mm/min Coolant Solution type 10mm 0.5 mm Approximate radius: 100 mm Φ50 mm Fig. 6 Geometry and view of Fresnel lens mould for structured grinding. 0 100 100 0 60 0 90 0 100 70 bottom side surface outer side surface outer side surface bottom side surface μm μm Fig. 7 Comparison of the diamond wheel edge of before truing and after truing Figure 8(a) shows a measured profile of the ground Fresnel mould.