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Online since: March 2007
Authors: Claudio Guarnaschelli, P. Folgarait, E. Paravicini Bagliani, R. Demarchi, H. Desimone
Studies on the most promising combination of process parameters, steel chemistry and controlled cooling strategies to produce DP and MP steels have outlined that the volume fraction of martensite (FV,M) and the carbon content of martensite islands (CM) affects ductility and toughness [4, 5].
The mechanical strength is less influenced than ductility by the structure morphology and shows a linear behaviour with FV,M.
In the pre-normalized steel, due to the original ferrite-pearlite structure, austenite formation during inter-critical annealing starts from the pearlite bands, richer in C, i.e. with lower transformation temperatures.
This structure does not allow the ferrite matrix to flow and should be avoided in order to reduce the risk that martensite network could crack during drawing operation.
Online since: August 2013
Authors: Xiao Ming Gao, Feng Fu, Feng Xing Niu, Li Ping Zhang
Preparation, characterization and photocatalytic properties of Ag-loaded Bi2WO6 Xiaoming Gao, Feng Fu*, Fengxing Niu, Liping Zhang Department of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan’an University, Yan’an 716000, China dawn1026@163.com Key words: Photocatalyst; Ag-Bi2WO6; Phenol; Pollutant degradation Abstract.
The shape is irregular sheet structure with the size of 300-600 nm and the crystal grew quite mature.
This demonstrated that all samples with an orthorhombic structure, and the variation of all diffractions and lattice parameters of Bi2WO6 in Ag/ Bi2WO6 samples are not detectable, which suggests that Ag-loaded cannot influence the inside lattice of Bi2WO6, but on the surface.
Higher temperature leads to higher crystallinity, larger grain size, perfect crystal structure, more homogeneous particle dispersion, and all of these enhance the light absorption.
Online since: September 2010
Authors: Norbert Krisztián Kovács, Alexandra Szenti, Ferenc Tuba
Introduction Bone Tissue Engineering is a frontier field of biology, chemistry, medicine and mechanical engineering.
Different studies revealed the structure and the mechanical properties of bones that help us to develop and create a more receptable implant for the patient [1, 2].
One of the adjustments we used was Basic adjustments (the standard settings of the printer), which generated a core-shell structure.
References [1] Currey J.D.: Bones: Structure and Mechanics.
Online since: June 2025
Authors: Napatsakorn Jhonthong, Duenrung Suwannasopa, Weerapong Julsri, Wisan Charee, Viboon Saetang
The center of the laser-melted track was the melting zone (MZ), where the rapid melting and solidification during the process caused a uniform lath martensitic (LM) structure.
This is plausibly owing to the heat accumulation that retards the cooling rate and prevents the laser heated region to form fine grains of hardened structures.
[4] Tricarico, L., et al., Discrete spot laser hardening and remelting with a high-brilliance source for surface structuring of a hypereutectoid steel.
Materials Chemistry and Physics, 2004. 88(2): p. 348-352
Online since: September 2018
Authors: Jakrapong Kaewkhao, Wantana Klysubun, Hong Joo Kim, Natthakridta Chanthima, Yotsakit Ruangtawep, Suchart Kothan, Siriprapa Kaewjaeng
The X-rays absorption near edge structure (XANES) measurements of the glasses were also investigated and discussed.
X-rays absorption near edge structure (XANES) measurements were carried out on the Dy-doped glasses at Beamline 8 of Synchrotron Light Research Institute (SLRI), Thailand [16].
Both the PL and RL results also indicated that the doped Y2O3 glass yielded higher emission intensity, when compared with the doped La2O3 glass, due to the asymmetric structure around the Dy ion in the Y2O3 glass matrices.
Shelby, Introduction to Glass Science and Technology, 2nd ed., the Royal Society of Chemistry, Cambridge, UK (2005)
Online since: November 2012
Authors: Jue Zhu, Qian Chen, Yuan Yuan Ding
It includes phase structure of ettringite[3-6], performance evolution of concrete structure under sulfate attack[7-10], material modification of concrete resistance to sulfate attack[11-13] and diffusion theory of sulfate ion[14-15].
The erosion solution is confected by pure water and sodium sulfate with content of 99% which is produced by Tianjin Fuchen chemistry reagent factory.
The effect of sulfate ion diffusion on the structure of cement stone.
Online since: July 2015
Authors: Mohd Fadhil Nuruddin, Nasir Shafiq, Maisarah Ali, Siti Asmahani Saad
The absorbed silica is then eventually assimilates into its structure during the growth [1].
Mesoporous structure of RHA allows the material to absorb water on internal and external surfaces.
Lea, The Chemistry of Cement and Concrete, 3rd ed., Edward Arnold, London, 1974 [15] D.J.
Ludwig, "Mesoporous structure and pozzolanic reactivity of rice husk ash in cementitious system," Construction and Building Materials, vol. 43, pp. 208-216, 2013.
Online since: April 2014
Authors: Phanawan Whangdee, Pasutha Thunyakitpisal, Sutthima Sriprasertsuk, Dujreutai Pongkao Kashima, Supatra Jinawath
These results are consistent with the observed significantly decreased water contact angle of the anodized Ti-6Al-4V and the notion that the hydrophilicity of the as-anodized films increased because of the increased level of OH groups or oxygen vacancy in the as-anodized film structure.
In accord, the oxygen asymmetry in anodized screw implants was reported to potentially be due to the appearance of a non-stoichiometric structure and Ti–OH formed during anodizing process.
Elliot, Structure and chemistry of the apatites and other calcium orthophosphate, Elsevier, 1994
Online since: June 2020
Authors: Genadijs Sahmenko, Aleksandrs Korjakins, Irina Shvetsova, Elvija Namsone
Magnesium-Based Binders and its Materials Elvija Namsone1,a*, Irina Shvetsova2,b, Genadijs Sahmenko3,c, and Aleksandrs Korjakins4,d 1Riga Technical University, Faculty of Civil Engineering, Institute of Materials and Structures, Kipsalas 6A/6B, Riga, Latvia 2Vladimir State University, Department of Building Materials, Gorky 87, Vladimir Region, Russia 3Riga Technical University, Faculty of Civil Engineering, Institute of Materials and Structures, Kipsalas 6A/6B, Riga, Latvia 4Riga Technical University, Faculty of Civil Engineering, Institute of Materials and Structures, Kipsalas 6A/6B, Riga, Latvia aelvija.namsone@inbox.lv, cgenadijs.sahmenko@rtu.lv, daleksandrs.korjakins@rtu.lv Keywords: magnesium binders, magnesium-based cement, dolomite waste material.
Davidovits, Geopolymer Chemistry and Applications, Second ed., Saint-Quentin, 2008
Online since: December 2025
Authors: Helmut Takahiro Uchida, Makoto Ryo Harada, Tomohiro Hayashi, Taichi Nakamura
A simplified structure of the experimental setup is shown in Figure 1.
A simplified structure of the experimental setup is shown in Figure 5.
V, Theoretical Aspects of Predicting the Electrostatic Properties of Textile, Materials Fiber Chemistry 39 (3) (2007) 225–226
[13] Isao Shinohara, Fujio Yamamoto, Hideyuki Anzai, Shigeru Endo, Chemical structure and electrostatic properties of polymers, Volume 2, Issue 2, June (1976) 99-110 [14] Giacometti, J.