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Online since: July 2011
Authors: Yong Ji Weng, Yu Liang Ma, Qiong Zhou, Yin Chun Hu
And particle size, structure and morphology were investigated by changing the water content.
Usually, for metallic powders, the structure of materials such as size and distribution has an obvious influence to its magnetic property.
Then the magnetic properties of products are characterized, and the differentias from structure and morphology to magnetic properties between products prepared by different water content are investigated.
The influence of water content to particle size, structure and morphology were determined by TEM observation.
The journal of physical chemistry.
Online since: February 2008
Authors: D.Y. Bao, Hong Qiu, F. Xiao, C. Fang, W. Liu, Zhao Xian Xiong, Zhen Xing Yue, J. Luo, X. Xue, B.Q. You, C. Zhang, Chang-Jian Lin
Calculation of Dielectric Constant of Ba2Ti9O20 Microwave Ceramics The chemical structure of Ba2Ti9O20 ceramics is illustrated as in Fig. 1, which is classified into triclinic space group P ī.
The structure consists of hexagonally closest-packed layers of Ba and O ions in the sequence (hch)3, meanwhile all Ti ions residue in octahedral interstices of this closest packing [3].
As the TiO6 octahedron in Ba2Ti9O20 is similar to the one in CaTiO3, therefore Ba2Ti9O20 belong to a structure of pseudo-calcium titanate.
Attention was paid on the effects of hydrothermal conditions on crystal structure, morphology and sintering behaviors of the powders.
The crystalline structures of samples were characterized by a powder X-ray diffractometer.
Online since: February 2022
Authors: Mikhail Frolov, Valentina I. Loganina, Bassam Shareef Deneef Al Saedi, Georgy A. Fokin
The higher maximum moisture content of coating samples based on composition 2 is explained by the predominance of open porosity in the pore structure of these composites.
The Role of the Law of Affinity Structures in the Construction Material Science by Performance of the Restoration Works.
Evaluation of the moisture regime of a multi-layered wall structure in the annual cycle.
Construction of unique buildings and structures. 6 19-33(2015) [4] A.V.
Journal of Physical Chemistry. 13 163(1939) [6] V.I.
Online since: August 2013
Authors: Nan Chang, Chen Li, Xin Hua Li, Chun Hong Zhang
Gliadin is a spherical shape, single polypeptide chains protein, which forms a tight three-dimensional structure by intramolecular disulfide bond, hydrogen bond and hydrophobic bond, and gives the dough viscosity and ductility [1].
Gliadin and glutenin combine with water to form a network structure, and they can form films in suitable conditions.
It can become random coil structure in alcohol solution and form films after dried.
Research shows that high molecular weight glutenin is chain-folded structure, constitute the network structure of polymer;low molecular weight glutenin exists in network structure, compose the branch of polymer;gliadin random distribute in the form of single molecule, filled in the space of glutenin polymers [6].
[4] V.Morillon,F.Debeaufort and M.CaPelle: Journal of Agriculture and Food Chemistry Vol. 48(2000), p.11-16
Online since: December 2013
Authors: Zdenka Sedlakova, Nikolay Semenyakin, Daulet Kaldybekov, Polina Obukhova, Grigoriy Mun, Ibragim Suleimenov, Dina Shaltykova
Besides, such supramolecular structures are of considerable interest to prove the adequacy of neural network mechanism of prebiological evolution [11].
Based on these and similar data [7,8] HIA initially were interpreted as products which are very similar to classical IPC, but have a more "loose" structure .
According to [9], HIA should be interpreted as supramolecular structure.
The existence of dynamic networks forces to assume that the structure of the solution of two interacting polymers may in fact, be even more challenging.
Formation, structure and applications, World Scientific, Singapore, (2009), р. 326
Online since: December 2013
Authors: Hong Xin You, Bin Qu, Lei Cao
The anode surface presented loose and porous structure,no obvious agglomeration.
The material prepared was granular structure.
The YSZ material prepared with the hard template method was of fluorite structure, while the microstructure was granulous and granule-applied ruptured tubular structure.
Nano-structuring of complex metal oxides for catalytic oxidation[J].
Journal of Materials Chemistry, 2011, 21(4): 1028-32
Online since: January 2012
Authors: Qiong Liu, Min Wang
XRD was used to investigate the phase structures of the as-prepared powders.
XRD patterns reveal that FeVO4 crystallites in Pd/FeVO4 composite photocatalysts have a trinclinc scheelite structure(JSPD file no. 38-1372) and the palladium doping does not influence the crystal structures of FeVO4.It has been reported that only the trinclinc scheelite structure FeVO4 shows good photocatalytic performance when irradiated with visible light, So, it is necessary to keep the trinclinc scheelite structure invariant after Pd doping.
The morphology and micro-structure of the as-prepared sample are revealed by scanning electron microscopy.
The XRD reveals that the FeVO4 are triclinic structure and no Pd species have been found.
Materials Chemistry and Physics, Vol.107:pp465-470, 2008.
Online since: May 2014
Authors: Shi Xiang Lu, Wen Guo Xu, Feng Yuan, Hai Feng Zhang, Tao Ning
This has led to most of these studies focused on the reconstructed structure of rutile TiO2(011)-2×1 surface.
Unlike the rutile TiO2(110) surface, which still exhibits a bulk truncation in the top layer, the rutile TiO2(011)-2×1 surface forms a 2×1 reconstruction at the vacuum interface and exhibits a distorted square pyramidal structure rather than the “ideal” bulk-terminated structure.
Calculated structures of the rutile TiO2(110) surface (side views) for slab thicknesses with 3, 4, 5, and 6 layers.
Calculated structures of the rutile TiO2(011)-2×1 surface (side views) with the number of layers 3, 4, 5, and 6.
An entirely unanticipated geometric structure for the rutile TiO2 surface, as shown in Fig. 2, is the recently proposed rutile TiO2(011)-2×1 surface.
Online since: September 2008
Authors: Minoru Osada, Yasuo Ebina, Kazunori Takada, Takayoshi Sasaki
Furthermore, due to their colloidal and negatively charged character, the nanosheet can be self-assembled layer-by-layer via a soft-chemistry process to construct nanoarchitectures.
The electronic structure of Ti0.8Co0.2O2 is also characterized by first-principles calculations. 2.
Structure of Ti0.8Co0.2O2 nanosheets.
First-principles study in ferromagnetic Ti0.8Co0.2O2 nanosheets To gain insight into the electronic structure of ferromagnetic Ti0.8Co0.2O2, we performed a firstprinciples band structure calculation on monolayer Ti3CoO8 cell.
Thus, MCD spectroscopy provides an important information on magnetic structures. 11.
Online since: March 2007
Authors: Hong Cheng Liu, Biao Wang, Xin Rong Liu
This structure is composed of alternating stacked layers of bismuth oxide and bismuth titanate[8].
Well crystallized BYT powders with bismuth layered perovskite structure were achieved by annealing above 600C for two hours.
The coincidence of diffraction peaks of BYT with those of Bi4Ti3O12 implies that the Y-substitution does not affect the layered perovskite structure.
It is important to note that, in the Bi-layered perovskite ferroelectrics, there is the possibility of formation of the face-centered fluorite cubic crystal structure existing as an intermediate phase between the amorphous and perovskite structures.
It is well known that, generally, the fluorite structure shows the Bi-deficient properties compared with the perovskite structure[11].