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Online since: July 2012
Authors: Jun Qiao, Xiang Hong Huang, Qian-Feng Zhang
Structure and Thermo-chemical Stability of Sr-Fe-Co-O mixed Metal Oxides Xianghong Huang1a, Jun Qiao1, Qian-Feng Zhang2b 1 College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, PR China 2 Institute of Molecular Engineering and Applied Chemistry, School of Materials Science and Engineering, Anhui University of Technology, Ma’anshan, Anhui 243002, P.
XRD results show that the SrFexCo0.5Oδ powders are composed of perovskite-type cubic structure at both room temperature and high temperature.
The perovskite-type oxides in the form of particulate have evident porosities in the membrane structure.
As reported by Ma et al. [21], the SrFeCo0.5Oδ is a perovskite-type layered structure.
But the structure of FeO layers in the SrFexCo0.5Oδ samples might not be the same as that of SrFeCo0.5Oδ.
Online since: October 2018
Authors: Anton I. Golodnov, Stepan I. Stepanov, Yu.N. Loginov
The problem of medical implants honeycomb structures loading has been stated.
They alloy for creating the objects with a pre-designed structure, internal and external architecture [2].
The structure was similar to the one proposed in [15, 16].
The main characteristics of honeycomb structures are presented in Table 1.
Coelho, Classification of osseointegrated implant surfaces: materials. chemistry and topography.
Online since: January 2024
Authors: Vania Mitha Pratiwi, Lukman Noerochim, Agung Ari Wibowo, Fakhri Akbar Maulana, Hariyati Purwaningsih
This study aims to analysized the effect of addition doped metal (Ti and Zn) on NASICON structure to morphology, materials structure, and electrochemical performance especially ionic conductivity properties.
The Na1+xZr2SixP3-xO12 (0£x£3) structure, one of the well-known NASICON kinds, has the benefit of being a stable crystal structure[4].
The aberrations in the crystal structure are the cause of these modifications.
The conductivity of the generated sample ions changes as a result of variations in the crystal structure.
Journal of Physics and Chemistry of Solids 88: 104-108. 2016. https://doi.org/10.1016/j.jpcs.2015.10.003 [7] Yanli Ruan, Shidong Song, Jingjing Liu, Ping Liu, Bowen Cheng, Xiangyun Song, & Vincent Battaglia. 2017.
Online since: September 2015
Authors: Kuttan Prabhakaran, Sujith Vijayan, Rajaram Narasimman
High specific strength carbon foam prepared from sucrose and multi-walled carbon nanotube Narasimman Rajaram1,a*, Sujith Vijayan1,b and Kuttan Prabhakaran1,c 1Department of Chemistry, Indian Institute of Space Science and Technology, Thiruvananthapuram – 695 547, Kerala, India ar.narasimman87@gmail.com, bsujithvijayan.88@gmail.com, ckp2952002@gmail.com Keywords: Carbon foam, MWNT, compressive strength.
The carbon foams showed cellular structure.
The MWNT-reinforced carbon foams show interconnected cellular structure.
The high specific properties of the materials are always desirable for the crucial applications like thermal protective systems and fire resistance structures in aerospace.
[6] Li WQ, Zhang HB, Xiong X, Xiao F, Influence of fiber content on the structure and properties of short carbon fiber reinforced carbon foam, Materials Science and Engineering: A 527 (2010) 7274-8
Online since: September 2013
Authors: Sheng Lin Yang, Kai Shen
The structure and properties of PGA were also characterized by means of intrinsic viscosity, FTIR, NMR and DSC testing. 1 Introduction Poly(glycolic acid) is an important group of biodegradable polymers as some unique performances.
The structure and properties of PGA were also characterized by means of intrinsic viscosity, FTIR, NMR and DSC testing. 2 Experimental 2.1 Materials Monomer was purchased from Xinmao Chemical Co.
The solvent must be heated up at 50°C to solve the PGA for 2 hours so that the PGA completely solved in HFIP. 3 RESULTS AND DISCUSSION PGA Synthesis and Structure Characterization The structure of PGA was confirmed with FTIR (Figure 1) and 1H NMR (Figure 2).
Journal of Polymer Science: Part A: Polymer Chemistry. 14(2008), p.4704–4711
Online since: November 2010
Authors: Fu Dong Zhu, Yun Shan Wang, Neng Wen Liu
The result shown that the Ni-based alloy cladding, metallurgy bonding with the copperplate, can be performed by taking the method of the YAG laser remelt technology; the structure of the cladding is compact, without defects such as pores and cracks.
Chemistry component of Ni45 powder (w%).
C Cr Si B Fe Ni Granularity 0.2-0.6 7.0-12.0 3.0-4.5 2.0-3.0 <10.0 remainder -140~+320 Results and Discussions Figure 1 shows the macro structure of plasma sprayed layer and copper substrate, it can be seen that the plasma sprayed layer is mainly in grain state, which has a few pores and cracks; the layer is not metallurgically bonded onto copper substrate.
After laser remelting, the layer turns to be compact, the structure comes into being a few branch crystals existing in the zone adjacent to copper substrate (Fig. 2).
In the zone of the interface, there exists Ni and Cu elements, therefore the structure consists of Ni-Cu solid solution.
Online since: September 2024
Authors: Charinee Winotapun, Orathai Boondamnoen, Theara Yann, Phanny Yos, Lee Hwei Voon
The reduction of particle aggregation was found in Alk-DA at both RT and 85 °C as shown in SEM images, indicating the activation by NaOH that effectively breaks down the bulky structure.
Additionally, these activations do not only remove the residues, but also the dissolution of ions from the clay structure.
It is just due to dehydration of chemical water bonded in the opal structure of diatomite.
Oral: Open Chemistry Vol. 19 (2021), p. 451-461
Luo: New Journal of Chemistry Vol. 46 (2022), p. 23268-23275
Online since: February 2011
Authors: Zhi Ming Sun, Jian Yu, Shui Lin Zheng, Chun Hua Bai
It can be clearly seen that, with the increase of ion concentration, the pore structure of bentonites changes greatly.
The pore structure in distilled water and low concentrations of NaCl solution seems more compact, and the sample has a clearer layered crystal structure and fewer holes, with average distribution.
When the hydration solution is MgCl2, the pore structure of bentonite become loose with subsequent shrinkage and cracking.
The adsorbed layer, referred to as the diffuse double layer (DDL) in colloid chemistry, is commonly described using the Stern-Guoy model [13-16].
Mitchell, in: Fundamentals of Soil Behavior, 2nd Edition, John Wiley & Sons, Inc., New York(1993): p.437 [14] H. van Olphen, in: An Introduction to Clay Colloid Chemistry.
Online since: December 2019
Authors: Vasiliy G. Klimenko, Alexander Z. Chernyshev, Alena I. Strelnikova
The components of iron ore concentrate and magnesia binder, having improved sorption properties, significantly accelerates the formation of such a structure.
The structure of the material was studied on a high-resolution scanning electron microscope TESCAN MIRA 3 LMU.
The Fe+3 and Fe+2 cations behave differently in the structure of the magnesian matrix.
Journal of Applied Chemistry. (3) 505–515 [9] N.S.
Perminov, Features of the influence of the additive of iron hydroxide sol on the structure and properties of magnesian stone, Vestnik SURG.
Online since: April 2025
Authors: Aparna Ashok, Neeru Bhagat
Additionally, the focus was restricted to core journals in physics and chemistry, excluding book chapters and conference proceedings.
Examples of descriptors are average atomic number and crystal structure: Strukturbericht type.
Predicting crystal structures with data mining of quantum calculations. 
Chemistry of Materials, 28, 7324-7331
How Evolutionary Crystal Structure Prediction Works and Why.