Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: May 2014
Authors: Sutin Kuharuangrong, Siriwan Chokkha
The electrical conductivity of RP structure depends on the n value.
Fig. 1 The Ruddlesden-Popper structure of La4Ni3O10±δ.
In other words, the structure tends to change from orthorhombic to more symmetry structure.
Manthiram, Comparison of the crystal chemistry and electrical properties of La2-xAxNiO4 (A = Ca, Sr, and Ba), Mater. 
Manthiram, Synthesis, crystal chemistry, and oxygen permeation properties of LaSr3Fe3−xCoxO10 (0 ≤ x ≤ 1.5), Solid State Ionics 140 (2001) 89-96
Online since: September 2013
Authors: A.N. Pestryakov, A.A. Lyapkov, E.I. Ionova, V.G. Bondaletov
On the other hand, oligomeric products having the sewed three-dimensional structure can be produced by cationic polymerization at the high maintenance of DCPD in the pyrolysis liquid products [7].
For this purpose we used a calculation method of terpolymer composition of styrene, DCPD and indene because these substances make main contribution to the structure of the synthesised resins.
Increase of DCPD concentration in the initial monomer mixture leads to activation of the processes of linkage and oxidation in DCPD structure [12].
Processes of structure formation and oxidation of unsaturated bonds in the oligomers are accompanied by exothermal effect.
No, G.M.Butov: Chemistry and technology of petropolymeric resins, Moscow: Chemistry (1999)
Online since: August 2014
Authors: Jian Hong Tan, Bin Xiang, Sheng Tao Zhang, Shi Qin Wang, Guo Qing Zhang
To protect structures from corrosion is one of the most important problems in engineering.
The cathodic protection using sacrificial anodes or impressing current from electrodes is usually applied to many structures.
However, the problems of actual structures are often too complicated to solve, even if it is possible in principle.
In the case that the structure consists of multiple materials, the number of polarization curves is the same as that of the material types.
Boundary element analysis of cathodic protection for complicated structures.
Online since: March 2004
Authors: J.Y. Kim, J.G. Lee, H. Shin, D.K. Jeong, N.H. Park, S.-H. Jung, Woo Gwang Jung
Introduction Recently, fabrication and applications of nanotubes have been extensively investigated due to their unique 1-dimensional properties such as large specific surface area.[1,2] Several methods for the formation of oxides nanotubes such as sol-gel, electroless plating, and chemical etching with nanotemplates were introduced.[3] Since most of the fabrication techniques were performed by soft chemistry, it is quite difficult to avoid experimental fluctuations achieving atomically precise quantum structure.
Even though fabrication process in a gas phase is preferred, conventional CVD and PVD techniques cannot form high aspect ratio structure due to their lack of conformality.
High-resolution transmission electron microscopy (HRTEM, JEM-3011 JEOL, Japan) was used to analyze the crystal structures of nanotubes.
The shape and crystal structure of the metal oxide nanotubes and oxide/CdS nanocables were investigated by FE-SEM, HR-TEM, EDS, and SAED pattern.
Martin: Chemistry-A European Journal, Vol. 8 (2002), 8, p. 16
Online since: March 2010
Authors: Qiang Li, Na Zhang, Min Zhang, Dan Yu Jiang, Jing Chu
Hydrothermal Synthesis of Nano-Structured Barium Titanate from Metatitanic Acid Jing Chu1,a, Danyu Jiang2, Na Zhang 3, Min Zhang 4and Qiang Li1,b 1 Department of Chemistry, East China Normal University, Shanghai 200062, China 2 Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200062, China a 51070606013@ecnu.cn, b qli@chem.ecnu.edu.cn Keywords: BaTiO3; Metatitanic acid; Hydrothermal method Abstract.
Nano-structured Barium Titanate (BaTiO3) was prepared by a hydrothermal method with the reaction between metatitanic acid and an alkaline solution of Ba(OH)2·8H2O.
In this work, a facile hydrothermal preparation of nano-structured BaTiO3 starting from cheap raw materials of metatitanic acid was reported.
XRD pattern of nano-structured BaTiO3 synthesized by hydrothermal reaction Conclusion Nano-structured BaTiO3 was synthesized by a facile hydrothermal reaction starting from cheap metatitanic acid.
A typical SEM image of nano-structured BaTiO3 synthesized by hydrothermal reaction
Online since: January 2005
Authors: Teresa Oh, Kwang Man Lee, Kyung Sik Kim, Sung Bo Oh, Won Hyung Kim, Chi Kyu Choi
The dielectric constant of the films was obtained by C-V measurements using an MIS (Al/SI-O-C film/p-Si) structure.
The dielectric constant of the films was obtained by C-V measurements using an MIS (Al/SI-O-C film/p-Si) structure.
The bonding structure of the organic-inorganic hybrid silica films was formed during the deposition, and the structure did not change even when the annealing process was done [8].
In addition, the cross-link structure improves mechanical properties such as adhesion, in the case of ILD materials.
Dean: Analytical Chemistry Handbook (McGraw-Hill, Inc., New York, 1997).
Online since: December 2013
Authors: Tamara S. Minakova, Maxim М. Sychov, Vadim V. Bakhmetyev, Nina S. Ereminа, Sergey P. Bogdanov, Ilya A. Zyatikov, Ludmila Yu. Minakova
X-ray intensity and spectra, phase structure, and surface properties of synthesized samples depending on the synthesis conditions were studied.
In order to obtain the samples possessing stoichiometric structure, the initial components were taken in the equal amounts.
Acid –basic properties of luminophore surface While investigating any surface it is necessary to know its acid-basic state which is formed in the course of synthesis and reflects the peculiarity of structure and reactivity of the materials.
Crystal structure of β-Zn3(PO4)2, Canadian Journal of Chemistry.. 45(1967), pp. 2303-2312
Sychov, Investigation of surface and luminescent properties of ZnS:Mn2+ nanoluminophores, Physics and Chemistry of glass. 37 (2011), pp. 734-743
Online since: May 2014
Authors: Eiji Yamasue, Hideyuki Okumura, Daisuke Shiba, Keiichi N. Ishihara
According to X-ray line broadening analyses the viscosity and the structure of PCA molecules strongly affect the MC process.
This contaminates powder or alters the chemistry of the powder, where the amount is also affected by type of PCAs.
Based on our X-ray analysis, viscosity, polarity and structure of PCAs are the major parameters controlling the MC process, depending on the kinds of powder and milling medium.
[11] Information on http://www.phs.d211.org/science/smithcw/AP%20Chemistry/ Posted% 20Tables/Lab%20Solvent% 20Info.pdf
Yamamoto, Journal of Computer Aided Chemistry, 7 (2006) 18-29 [17] Z.
Online since: October 2014
Authors: Izua J. Alaniz-Ortez, Thomas Hartmann
Maryland Parkway, Box 4009, Las Vegas, NV 89154-4009, USA 2 University of Nevada – Las Vegas, Department of Chemistry, 4505 S.
Pioneering research on the crystal chemistry of technetium-containing oxides was published by Muller et al. [4], and a series of simple binary and ternary Tc-containing oxide structures are reported, including a variety of spinel, perovskite and pyrochlore compounds, among them is the perovskite SrTcO3.
The perovskite structure type was synthesized after annealing at 770 °C for 7 days, and the layered perovskite structure after annealing at 550 °C for 10 days.
Hereby we intend to investigate crystal chemistry and AC magnetic susceptibility in the system Sr-Ba-Nd-Tc-O.
Crystal Chemistry of some Technetium-Containing Oxides.
Online since: June 2025
Authors: Arima Diah Setiowati, Arum Widyastuti Perdani, Supriyadi Supriyadi, Bambang Purwono
These changes could suggest the formation of complexes or alterations in the chemical structure of pectin or chitosan due to reactions with anthocyanins [9].
Subsequent deprotonation of the carbinol pseudobase leads to ring-opening in the anthocyanins structure, resulting in the yellow chalcone [5,9].
This is attributed to the interaction between anthocyanins, pectin, and chitosan, which promotes hydrogen bonding or alters the C–O group structures, leading to increased cross-linking.
Dinesh, Arabian Journal of Chemistry 10 (2017) S1145–S1157
Wrolstad, in: Current Protocols in Food Analytical Chemistry, 2001, p.