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Online since: June 2014
Authors: Oliver Döbrich, Paul Matthäi, Chokri Cherif
The development of a new type of NCF demands a convergence of diverse disciplines namely mechanics, construction design and chemistry.
After successfully implementing a structural model with its characteristics, large scale models of the noncrimp structure with near microscopic resolution will be generated to examine the deformation behavior of the novel textile structure under deforming conditions.
The result of this simulation shows the alignment of the fiber bundles after compacting the structure without any bonding from knitting yarns or adhesive dots.
To gain knowledge about effects that occur while forming a textile structure with the introduced properties, a large dimensional model will be assembled.
Obviously, the adhesive dot concentration and the adhesive mass per unit cell have a significant effect on the local forming ability of the structure.
After successfully implementing a structural model with its characteristics, large scale models of the noncrimp structure with near microscopic resolution will be generated to examine the deformation behavior of the novel textile structure under deforming conditions.
The result of this simulation shows the alignment of the fiber bundles after compacting the structure without any bonding from knitting yarns or adhesive dots.
To gain knowledge about effects that occur while forming a textile structure with the introduced properties, a large dimensional model will be assembled.
Obviously, the adhesive dot concentration and the adhesive mass per unit cell have a significant effect on the local forming ability of the structure.
Online since: September 2012
Authors: Leonid Ionov, Svetlana Zakharchenko, Georgi Stoychev
Such films, on one hand, mimic movement mechanisms of plants and, on the other hand, are able to self-organize and form complex 3D structures.
Because of non-equal expansion of polymers, the self-folding films are able to form a tube, capsule or more complex structure.
Reprinted with permission of ref [1 and 2], copyright 2010 Royal Society of Chemistry and 2011 American Chemical Society, respectively.
Reproduced by permission of the Royal Society of Chemistry, Ref [4] Applications of self-folding films Controlled encapsulation and release.
Reproduced by permission of the Royal Society of Chemistry, Ref [1] Summary The self-folding polymeric thin films are emerging field, which only starts to develop.
Because of non-equal expansion of polymers, the self-folding films are able to form a tube, capsule or more complex structure.
Reprinted with permission of ref [1 and 2], copyright 2010 Royal Society of Chemistry and 2011 American Chemical Society, respectively.
Reproduced by permission of the Royal Society of Chemistry, Ref [4] Applications of self-folding films Controlled encapsulation and release.
Reproduced by permission of the Royal Society of Chemistry, Ref [1] Summary The self-folding polymeric thin films are emerging field, which only starts to develop.
Online since: February 2022
Authors: Vladimir I. Minaev, Ivan V. Ushakov, Ivan S. Safronov
Rolling, stamping, high-temperature processing and pressing can lead to changes in the structure of the material, loss of unique properties, or complete destruction of the sample [5-11].
With such treatment the thickness and initial structure of the material are practically irrelevant.
Priezjev, The effect of thermal history on the atomic structure and mechanical properties of amorphous alloys, Computational Materials Science. 174 (2020) 109477
Uvarova, Formation of ordered vacancy-deformation structures on metal surface under laser irradiation, Physics and Chemistry of Materials Treatment. 24(2) (1990) 108-114
Savastenko, Plasma chemistry in laser ablation processes, Spectrochimica Acta Part B. 56 (2001) 961-971.
With such treatment the thickness and initial structure of the material are practically irrelevant.
Priezjev, The effect of thermal history on the atomic structure and mechanical properties of amorphous alloys, Computational Materials Science. 174 (2020) 109477
Uvarova, Formation of ordered vacancy-deformation structures on metal surface under laser irradiation, Physics and Chemistry of Materials Treatment. 24(2) (1990) 108-114
Savastenko, Plasma chemistry in laser ablation processes, Spectrochimica Acta Part B. 56 (2001) 961-971.
Online since: July 2011
Authors: Yu Hua Zhu
The influence of grain size on the lattice constant in some nanocrystallites of perovskite structure was studied in experiment.
Sample preparation Sol-gel method was an easy and feasible chemistry preparation method, the crystallization temperature was low, there was the advantageous superiority in synthesizing ultra fine particles sample.
Lattice constant of cubic structure was , where H, K, L were indices of crystallographic planes.
Fig.2 showed that all of the three CaMnO3 samples belonged to the single phase cubic structure.
This indicated that the Cu doped had not changed the original sample’s phase structure.
Sample preparation Sol-gel method was an easy and feasible chemistry preparation method, the crystallization temperature was low, there was the advantageous superiority in synthesizing ultra fine particles sample.
Lattice constant of cubic structure was , where H, K, L were indices of crystallographic planes.
Fig.2 showed that all of the three CaMnO3 samples belonged to the single phase cubic structure.
This indicated that the Cu doped had not changed the original sample’s phase structure.
Online since: September 2017
Authors: Uğur Şen, Şaduman Şen, Merve Torman, K. Emre Öksüz
amervetorman@gmail.com, bkerimemreoksuz@gmail.com csdmnsen@sakarya.edu.tr, dugursen@sakarya.edu.tr
Keywords: BSZ ceramic, solid-state chemistry, perovskites, dielectric properties.
This perovskite structure not only works as a good substrate for growing high-temperature perovskite superconductors [8] but is also a good dielectric material.
Fan, J.T.Wang, Ab initio calculations of the electronic structure and optical properties of ferroelectric tetragonal BaTiO3, J.
Maier: Long-range and short-range structure of proton-conducting Y: BaZrO3.
Şen, Influence of ZrO₂ addition on the structure and dielectric properties of BaTiO₃ ceramics, Acta.
This perovskite structure not only works as a good substrate for growing high-temperature perovskite superconductors [8] but is also a good dielectric material.
Fan, J.T.Wang, Ab initio calculations of the electronic structure and optical properties of ferroelectric tetragonal BaTiO3, J.
Maier: Long-range and short-range structure of proton-conducting Y: BaZrO3.
Şen, Influence of ZrO₂ addition on the structure and dielectric properties of BaTiO₃ ceramics, Acta.
Online since: May 2022
Authors: Bernhard Elsener, Marzia Fantauzzi, Antonella Rossi
The most cost optimal solution is the employment of stainless steel reinforcement in the most exposed zones/parts of the structure.
· Additional work is required to take into account the intrinsic stochastic variability of both Ccrit and Epit References [1] L Bertolini, Steel Corrosion and service life of reinforced concrete structures, Structure and Infrastructure Management, Vol. 4 (2008) pp. 123 - 137,
Hansson, Corrosion of stainless steel in concrete, in Corrosion of Steel in Concrete Structures, ed.
Rossi, Passivation of Steel and Stainless Steel in Alkaline Media Simulating Concrete, Encyclopedia of Interfacial Chemistry, Elsevier (2018) pp. 365 - 375 [9] B.
Rossi, Nickel-free Manganese bearing stainless steel in alkaline media – electrochemistry and surface chemistry, Electrochimica Acta 56 (2011) 4489 – 4497 [11] Ha, H.
· Additional work is required to take into account the intrinsic stochastic variability of both Ccrit and Epit References [1] L Bertolini, Steel Corrosion and service life of reinforced concrete structures, Structure and Infrastructure Management, Vol. 4 (2008) pp. 123 - 137,
Hansson, Corrosion of stainless steel in concrete, in Corrosion of Steel in Concrete Structures, ed.
Rossi, Passivation of Steel and Stainless Steel in Alkaline Media Simulating Concrete, Encyclopedia of Interfacial Chemistry, Elsevier (2018) pp. 365 - 375 [9] B.
Rossi, Nickel-free Manganese bearing stainless steel in alkaline media – electrochemistry and surface chemistry, Electrochimica Acta 56 (2011) 4489 – 4497 [11] Ha, H.
Online since: February 2011
Authors: Lian Chao Wang
The results of films heated at different temperature show that the film heated below crystal temperature has a loose, island amorphous structure, and that of the films heated at 300°C has a compact, regular square structure.
We find that the film heated at 250°C has a loose, island amorphous structure (Fig.5(b).
The square structure (Fig.5(a)) is the crystallite NiO with a lower surface roughness than that of the film heated at 250 °C.
Wang , Materials Chemistry and Physics Vol.77 (2002) , p.384 [16] Crandell R S,Faughuan B W.
[24] Zhong Qikun, Modern Inorganic Synthesis Chemistry , Shantou Press, Shan Tou , 1995 , p149 [25] Agrawal A,Hamid R H,Agrawal R k ,Agrawal, John P,Cronin and Dale M.
We find that the film heated at 250°C has a loose, island amorphous structure (Fig.5(b).
The square structure (Fig.5(a)) is the crystallite NiO with a lower surface roughness than that of the film heated at 250 °C.
Wang , Materials Chemistry and Physics Vol.77 (2002) , p.384 [16] Crandell R S,Faughuan B W.
[24] Zhong Qikun, Modern Inorganic Synthesis Chemistry , Shantou Press, Shan Tou , 1995 , p149 [25] Agrawal A,Hamid R H,Agrawal R k ,Agrawal, John P,Cronin and Dale M.
Online since: August 2011
Authors: Qing Tai Shen, Pei Wu, Le Ping Bu
Shortsighted globosity structure of minuteness grain the originated from basal phase and reinforcement phase were observed, respectively.
Therefore, the existence has the typical eutectic structure in the grain boundary.
The alloy after hot-extruded, the typical eutectic structure is broken and the thinning in the grain boundary, and 1mm following particle by uniform distribution.
It is clear that minuteness particle structure (MPS) cast ingot was strengthened by plastic deformation.
Journal of Physics and Chemistry of Solids 66 (2005) 292-297
Therefore, the existence has the typical eutectic structure in the grain boundary.
The alloy after hot-extruded, the typical eutectic structure is broken and the thinning in the grain boundary, and 1mm following particle by uniform distribution.
It is clear that minuteness particle structure (MPS) cast ingot was strengthened by plastic deformation.
Journal of Physics and Chemistry of Solids 66 (2005) 292-297
Online since: February 2013
Authors: Ashvin R. Jani, P.N. Gajjar, Manjul Kumar, B.Y. Thakore, Mitesh Joshi
Partial structure factor is calculated by using Ashcroft-Langreth equation.
This study is important for metallurgical chemistry and geology which involve the study of core of earth as well as astrophysics which involves the study of interior of planets (the core of the earth and interior of the planet are made up in part of a liquid mixture).
From the literature survey it is established that there are very few models or approaches through which these accurate partial structures and hence total structures can be yield.
Among this the Ashcroft-Langreth (AL) partial structure factor is the most popular in past [6].
Harrison, Elementary electronic structure (World Scientific, Singapore) 1999
This study is important for metallurgical chemistry and geology which involve the study of core of earth as well as astrophysics which involves the study of interior of planets (the core of the earth and interior of the planet are made up in part of a liquid mixture).
From the literature survey it is established that there are very few models or approaches through which these accurate partial structures and hence total structures can be yield.
Among this the Ashcroft-Langreth (AL) partial structure factor is the most popular in past [6].
Harrison, Elementary electronic structure (World Scientific, Singapore) 1999