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Online since: April 2014
Authors: Peng Ding, Li Yi Shi, Yu Zhao, Chun Xiao Yue
The crystalline structure can be observed slightly as the heat-treatment temperature increases to 300°C.
Usually the monoclinic phase is the stable crystalline zirconia structure at low temperature, and the tetragonal-to-monoclinic phase transformation occurs at higher temperature.
An ordered mesoporous organosilica hybrid material with a crystal-like wall structure.
Journal of Physical Chemistry.2011,115(25) :12269-12274
Experimental and theoretical determination of the electronic structure and optical properties of three Phases of ZrO2, Phys.
Usually the monoclinic phase is the stable crystalline zirconia structure at low temperature, and the tetragonal-to-monoclinic phase transformation occurs at higher temperature.
An ordered mesoporous organosilica hybrid material with a crystal-like wall structure.
Journal of Physical Chemistry.2011,115(25) :12269-12274
Experimental and theoretical determination of the electronic structure and optical properties of three Phases of ZrO2, Phys.
Online since: November 2013
Authors: De Wei Chen, Xiao Ling Ge, Quen Tin Shi, Yu Tian
With the dispersing increasing, the coating amount of the dispersant on the particle surface change from single to double-coated, and form an unstable structure, thereby form a stable double-cladding structure at 0.8%[6], and the viscosity reaches to another extreme.
Mutevellioglu, The effects of dispersants (PSS-NSF) used in coal-water slurries on the grindability of coals of different structures, Fuel 84 (2005) 801-808
Colloid and Surface Chemistry (Second Edition).
Hydrocyclone structure and separation performance (three) - vertebral segment structure [J].
Mutevellioglu, The effects of dispersants (PSS-NSF) used in coal-water slurries on the grindability of coals of different structures, Fuel 84 (2005) 801-808
Colloid and Surface Chemistry (Second Edition).
Hydrocyclone structure and separation performance (three) - vertebral segment structure [J].
Online since: June 2014
Authors: Hui Hong Lin, Yan Ru Lin, Gui Po Fang
The crystal structure of Ca3(BO3)2 was first reported in 1975 [8]; the luminescence of Ca3(BO3)2:Dy3+, Ca3(BO3)2:Nd3+ and Ca3(BO3)2:Pb2+ had been reported previously[9, 10].
The structure of the final products was examined by X-ray powder diffraction (XRD) using Cu Kα radiation on RIGAKU D/max 2200 vpc X-Ray Diffractometer.
The results show that all rare earth ions doped samples in the investigated concentration range are also of single phase and the crystal structure is not significantly changed when the doped ions enter into the host and occupy Ca2+ normal sites.
Generally, the Ce3+ emission band shows doublet structure due to spin-orbit splitting of the ground state (2F7/2 and 2F5/2) with the energy difference ~2000 cm-1[11,12].
The crystal structure of calcium orthoborate: a redetermination, Acta Crystallographica B 31 (1975) 1416-1419
The structure of the final products was examined by X-ray powder diffraction (XRD) using Cu Kα radiation on RIGAKU D/max 2200 vpc X-Ray Diffractometer.
The results show that all rare earth ions doped samples in the investigated concentration range are also of single phase and the crystal structure is not significantly changed when the doped ions enter into the host and occupy Ca2+ normal sites.
Generally, the Ce3+ emission band shows doublet structure due to spin-orbit splitting of the ground state (2F7/2 and 2F5/2) with the energy difference ~2000 cm-1[11,12].
The crystal structure of calcium orthoborate: a redetermination, Acta Crystallographica B 31 (1975) 1416-1419
Online since: February 2012
Authors: Wen Zhong Lou, Long Fei Zhang, Yue Zhao, Dong Guang Li, Jian Hua Li, Mao Bo Fang
At present, a lot of results are mainly based on MEMS technology, cantilever contact switch and slide lock structure.
They all belong to mechanical switches, and a common feature is they have a movable structure, while some structure needs to be micro-assembly.
In some fire environment, the structure may have been failed, which cannot be reliably role.
Fig.4 Process of MEMS fuse Fig.5 Structure of the Electro-thermal fuse (a)Ti fuse, (b)Al fuse MEMS fuse test The MEMS fuse is mainly used in the field of military and civilian explosive.
Véronique, “Fabrication, assembly and tests of a MEMS-based safe, arm and fire device”, Journal of Physics and Chemistry of Solids, v71, n2, p75-79, 2010
They all belong to mechanical switches, and a common feature is they have a movable structure, while some structure needs to be micro-assembly.
In some fire environment, the structure may have been failed, which cannot be reliably role.
Fig.4 Process of MEMS fuse Fig.5 Structure of the Electro-thermal fuse (a)Ti fuse, (b)Al fuse MEMS fuse test The MEMS fuse is mainly used in the field of military and civilian explosive.
Véronique, “Fabrication, assembly and tests of a MEMS-based safe, arm and fire device”, Journal of Physics and Chemistry of Solids, v71, n2, p75-79, 2010
Online since: January 2013
Authors: Z.M. Zabidi, A.N. Alias, M.H. Jumali, Intan Syaffinazzilla Zaine
Conducting polymers are easy to be synthesized through chemical or electrochemical processes and their molecular chain structure can be modified conveniently through copolymerization or structural derivations [1].
The structure of the sensor device is shown in Fig. 1.
The porous and agglomerated structures are due to the PANi chains tendency to bind tungsten particles together in the paste and therefore is spread onto tungsten particle surface.
This is due to the many hollows structure existing in S1.
Wang, "Gas sensing performance of polyaniline/ZnO organic-inorganic hybrids for detecting VOCs at low temperature," Journal of Natural Gas Chemistry, vol. 20, pp. 515-519, 2011
The structure of the sensor device is shown in Fig. 1.
The porous and agglomerated structures are due to the PANi chains tendency to bind tungsten particles together in the paste and therefore is spread onto tungsten particle surface.
This is due to the many hollows structure existing in S1.
Wang, "Gas sensing performance of polyaniline/ZnO organic-inorganic hybrids for detecting VOCs at low temperature," Journal of Natural Gas Chemistry, vol. 20, pp. 515-519, 2011
Online since: July 2012
Authors: Nadirah Zawani Binti Mohd Nesfu, Salasiah Binti Endud
However, most of the recent report on M41S molecular sieves only focuses on catalytic properties of metal containing MCM-41 structure due to the ease in preparation of these materials.
On the other hand, there are only very little attention has been paid to the catalytic properties of metal incorporated MCM-48 because of the structure is more complex and the difficulties encountered for their synthesis in term of reproducibility and synthesis yield.
The presence of all typical XRD peaks for mesoporous material MCM-48 indicates the framework structure has been retained after loaded with cesium and niobium.
On the other hand, the lowest surface area (23 m2/g) obtained for Cs (5%)/MCM-48 supported the XRD pattern, which indicates that the structured collapse during the impregnation process.
Universiti Teknologi Malaysia: Master of Science (Chemistry), (2005), Thesis
On the other hand, there are only very little attention has been paid to the catalytic properties of metal incorporated MCM-48 because of the structure is more complex and the difficulties encountered for their synthesis in term of reproducibility and synthesis yield.
The presence of all typical XRD peaks for mesoporous material MCM-48 indicates the framework structure has been retained after loaded with cesium and niobium.
On the other hand, the lowest surface area (23 m2/g) obtained for Cs (5%)/MCM-48 supported the XRD pattern, which indicates that the structured collapse during the impregnation process.
Universiti Teknologi Malaysia: Master of Science (Chemistry), (2005), Thesis
Online since: January 2015
Authors: Na Su, Zheng Min Cao
The chemistry for cleaving the long polyelectrolyte chains from the surface of modified SiO2 nanoparticles was displayed in Fig. 1 (step Ⅲ).
Fourier transform infrared spectroscopy (FTIR) [Nicolet AVATAR 360FT, Japan] was shown to be a qualitative structure analysis of CSPB.
As shown in Fig.2, the CSPB were well dispersed and had uniform spherical structure.
The structure of synthesized CSPB was characterized by FTIR (Fig.3).
The CSPB are well dispersed, and have uniform spherical structure, short chains and high surface grafting density.
Fourier transform infrared spectroscopy (FTIR) [Nicolet AVATAR 360FT, Japan] was shown to be a qualitative structure analysis of CSPB.
As shown in Fig.2, the CSPB were well dispersed and had uniform spherical structure.
The structure of synthesized CSPB was characterized by FTIR (Fig.3).
The CSPB are well dispersed, and have uniform spherical structure, short chains and high surface grafting density.
Online since: January 2012
Authors: Jing Qin Wang, Fu Min Zhang, Meng Yu Li, Zhan Kai Li, Hao Hua Li, Si Li, Yong Cui Sun
Structure and Properties of New Contact Doped Materials Ti3SiC2
Ti3SiC2 is ternary layered compounds, whose crystal structure is hexagonal.
As shown from the Fig 2, the crystal structure diagram of Ti3SiC2 can be seen: Ti3SiC2 unit cell can be seen as the Ti6C octahedral with a total edge is separated by the plane paralleled to quadrilateral Si atoms layers, and C atoms is in the octahedral center, with each cell containing two Ti3SiC2 molecules.
Its layered structure is similar to graphite, so it has certain plasticity, workability, and very good self-lubricating properties.
The arc has long life, closure of small value; plasma cloud bulky, light color, sample surface burning area is large, arc scattered, arcing energy dispersive; arc burning stable, non-radial light. 3) Analyzed properties and structure of doped contact materials which have new structural, contrast with other copper-based composite materials which commonly used to enhance phase, the performance show that, when combined with copper, contacts have a greater advantage.
Myhra, et al.: Strueture and Crystal-Chemistry of Ti3SiC2.
As shown from the Fig 2, the crystal structure diagram of Ti3SiC2 can be seen: Ti3SiC2 unit cell can be seen as the Ti6C octahedral with a total edge is separated by the plane paralleled to quadrilateral Si atoms layers, and C atoms is in the octahedral center, with each cell containing two Ti3SiC2 molecules.
Its layered structure is similar to graphite, so it has certain plasticity, workability, and very good self-lubricating properties.
The arc has long life, closure of small value; plasma cloud bulky, light color, sample surface burning area is large, arc scattered, arcing energy dispersive; arc burning stable, non-radial light. 3) Analyzed properties and structure of doped contact materials which have new structural, contrast with other copper-based composite materials which commonly used to enhance phase, the performance show that, when combined with copper, contacts have a greater advantage.
Myhra, et al.: Strueture and Crystal-Chemistry of Ti3SiC2.
Online since: March 2008
Authors: Alexander Gschwandtner
Scaling of CMOS structures through the deep sub-micron range and into the nano-scale
range (< 100 nm) has posed a number of difficult problems for processing technology.
Introduction Scaling of CMOS structures through the deep sub-micron range and into the nano-scale range (< 100 nm) has posed a number of difficult problems for processing technology.
Precursor chemistries and process conditions are chosen such that no further reaction takes place once the surface is completely saturated.
Thus, surface chemistry governs film growth rather than a precise control of tool specific process parameters such as precursor flow and partial pressure.
Figure 9 shows some calculated wafer throughput rates (100 wafer batch) for the trench recipe and a so-called 'fast-recipe' (5/3/5/3s for the recipe steps TMA/purge/H2O/purge) for planar structures.
Introduction Scaling of CMOS structures through the deep sub-micron range and into the nano-scale range (< 100 nm) has posed a number of difficult problems for processing technology.
Precursor chemistries and process conditions are chosen such that no further reaction takes place once the surface is completely saturated.
Thus, surface chemistry governs film growth rather than a precise control of tool specific process parameters such as precursor flow and partial pressure.
Figure 9 shows some calculated wafer throughput rates (100 wafer batch) for the trench recipe and a so-called 'fast-recipe' (5/3/5/3s for the recipe steps TMA/purge/H2O/purge) for planar structures.
Online since: January 2024
Authors: Yeni Rahmawati, Siti Fatimah, Bramantyo Airlangga, Sumarno Sumarno, Achmad Roesyadi, Marisa Asrietd Hafied, Putu Ayu Yuliani Indiasih
The granule structure of cassava starch resists the structure disintegration so that it is unable to produce high resistant starch content in the retrogradation process.
The tight granule structure is challenging to produce resistant starch from cassava starch.
Morphology Structure in RS-3 Fig. 6.
There is a change in the structure into more solid random particles of various sizes.
Paschall, Starch : chemistry and technology, Academic Press, 1984.
The tight granule structure is challenging to produce resistant starch from cassava starch.
Morphology Structure in RS-3 Fig. 6.
There is a change in the structure into more solid random particles of various sizes.
Paschall, Starch : chemistry and technology, Academic Press, 1984.