Search results

The focus of the work was placed on the effect of activating solution on the structure and mechanical properties of the synthesised IPs.
Davidovits, J., Geopolymer Chemistry and Applications. 2011, Saint-Quentin, France: Institut Géopolymère
Rietveld, H.M., A method for including the line profiles of neutron powder diffraction peaks in the determination of crystal structures.
Rietveld, H.M., A profile refinement method for nuclear and magnetic structures.
Bernal, S.A., et al., Evolution of binder structure in sodium silicate-activated slag-metakaolin blends.

X-Ray Diffraction (XRD) pattern was used to determine the crystal structure and the average crystallite size of the CuO nanofluids.
The XRD pattern of the prepared sample is indexed to the tetragonal structure of SnO2, and the calculated particle size in the range 8-10nm.
Pictorial View of CuO Nanoparticles Fig 1 Results and Discussion XRD Analysis: The XRD is used as a primary tool to characterize the crystal structure and crystallite size of the nanoparticles.
All the peaks were clearly indexed to a monoclinic structure of CuO.
Yang, (2005), “Room temperature growth of CuO nanorod arrays on copper and their application as a cathode in dye-sensitized solar cells”, Materials Chemistry and Physics, Vol. 93, pp.35-39 [20] F.

The additional element P will engage in the forming of oxide film, and improve the structure and mechanical property of oxide film to achieve the antioxidant effect.
(e) and (f), the rough and rugged oxidation surface formed at 380ºC composite of no qualitative structure floccules.
Adding 0.019wt.% of phosphorus improves its mechanical properties by changing the structure of Sn63Pb37 solder oxidation film, and then increases the protective ability of the surface oxidation film.
Shanghai Science and Technology Publishers. (1989), p.23 [9] Department of Physical Chemistry in Tianjin University.
Physical Chemistry.

Glass formation in the MoO3-La2O3-Nd2O3 system Lyubomir Aleksandrov 1,a, Reni Iordanova1,b, Yanko Dimitriev 2,c, Katsumi Handa3,d, Junko Ide 3, e , Margarita Milanova1,f 1 - Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, G.
Characterization of the amorphous samples was made by differential thermal analysis (DTA) and X-ray absorption fine structure (XAFS) method.
Radial Structure Function 0 2 4 6 8 10 -0.2 0.0 0.2 La LIII-edge χ(k) WAVE VECTOR [A-1 ] 80MoO3-10La2O3-10Nd2O3 90MoO3-10La2O3 Fig. 6.
Radial Structure Function 0 2 4 6 8 -0.1 0.0 0.1 Nd LIII-edge χ(k) WAVE VECTOR [A-1 ] 80MoO3-10La2O3-10Nd2O3 90MoO3-10Nd2O3 Fig.9.
Radial Structure Function 0 5 10 15 20 -0.2 0.0 0.2 χ(k) X-RAY ENERGY [eV] 80MoO3-10La2O3-10Nd2O3 90MoO3-10La2O3 90MoO3-10Nd2O3 Fig. 3.

Structure and dielectric properties of 5 % Ce and Ca co-doped BaTiO3 ceramics were investigated.
The Ba/Ti ratio has dramatic effects on ceramic structure and properties.
The site occupation and valence state of Ce and Ca ions in BaTiO3, and the dielectric properties and defect chemistry of these ceramics were studied.
Their structure and dielectric properties were investigated.
The Ba/Ti ratio has dramatic effects on ceramic structure and properties.

The results showed that the borate had formed, and the six-member ring containing boron-oxygen coordinate structure also formed during the curing process.
In this work, the BBPSFR was synthesized, and the structure, curing process and thermal properties were characterized.
The analysis of 1H NMR spectrum shows that the structure of A and B is coincident with the objective compound, respectively.
The higher Tp, the higher Tg, which depends on the curing conditions, molecular structure, cross-linked degree etc. [7,8].
During the curing process, the six-member ring containing boron-oxygen coordinate structure can form.

The structure and composition of product were analyzed by means of XRD, and BET.
However, as an independent phase, it was difficult to introduce the silicon in a great amount into the structure of aluminophosphate.
In addition, the synthesis chemistry and the formation mechanism have not been fully understood.
But the relatively high amorphous content between 20° and 30° and the weak peak at 7.58° suggests that the crystal structure of products was not very good.
The structure-directing role is less obvious due to the less amount of TEA.

The end result of improvements is the rational use of concrete in the elements and structures of buildings.
In the practice of construction there are spread out elements of round and annulus sections, among which are columns, support risers, pipes and many other structures [6,7,9].
At the same time, the maximum on the dependence curve of the "load-curvature" corresponds to the magnitude of the bearing capacity of the structures.
Gonda, Optimisation of strength in cement pastes, The VI International Congress on the Chemistry of cement (1974) 12
Walraven, Challenges for new materials in concrete structures, Proc. of the XIII-th FIP Congress on Challenges for concrete in the Next Millennium, 1 (1998), 3-8

Highly stable, well coated and uniform films with the compatible structure are obtained.
The Journal of Physical Chemistry C, 119 (2015) 8711-8717
Chemistry of materials, 17 (2005) 893-901
Ravindran, High Pressure effects on electrical resistivity and dielectric properties of nanocrystalline SnO2.Journal of Physics and Chemistry of Solids, 66 (2005) 1621-1627
Chu, Tin oxide nanoribbons with vacancy structures in luminescence-sensitive oxygen sensing.

The holding time in the coilbox can vary substantially, depending on steel chemistry, product type and mill performance; thus the bar temperature profile will differ considerably compared to that observed in conventional mills with only a delay table.
These factors have a major influence on the deformation behavior of microalloyed steels and especially on their behavior between deformation operations, making such grades extremely vulnerable to variabilities in the chemistry and processing conditions.
In a companion paper [5], recent developments that can simplify the structure of such models and improve their adaptability are reviewed.
It has been shown that the Tnr, although determined primarily by the steel chemistry [16], is also a decreasing function of the pass strain, strain rate and interpass time [17, 18].
According to the formalism of Eqs. (1) and (2), the two temperatures, Tnr SRX and Tnr MDRX, will depend on steel chemistry (which determines the activation energies Qs SRX and Qs MDRX), the activation energy for deformation Qdef (which is affected by the occurrence of DRX during the preceding loading and also by the steel chemistry), as well as on the coefficients p, q and n for each softening mechanism and their dependencies on the process parameters.