scholarly journals Universal composition–structure–property maps for natural and biomimetic platelet–matrix composites and stacked heterostructures

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Navid Sakhavand ◽  
Rouzbeh Shahsavari
Keyword(s):  
Matrix Composites ◽  
Structure Property ◽  
Composition Structure ◽  
Universal Composition

scholarly journals Layer Shift Factor in Layered Hybrid Perovskites: Univocal Quantitative Descriptor of Composition–Structure–Property Relationships

2021 ◽  
Vol 33 (4) ◽  
pp. 1213-1217 ◽  
Author(s):  
Ekaterina I. Marchenko ◽  
Vadim V. Korolev ◽  
Artem Mitrofanov ◽  
Sergey A. Fateev ◽  
Eugene A. Goodilin ◽  
...  
Keyword(s):  
Shift Factor ◽  
Structure Property ◽  
Structure Property Relationships ◽  
Composition Structure

Effect of pouring temperature on A356-TiB2 MMCs cast in sand and permanent moulds by in-situ method

2016 ◽  
Vol 25 (5-6) ◽  
pp. 165-169
Author(s):  
C. Rajaravi ◽  
P.R. Lakshminarayanan
Keyword(s):  
Evaluation Studies ◽  
Physical And Mechanical Properties ◽  
Xrd Analysis ◽  
Matrix Composites ◽  
Structure Property ◽  
Pouring Temperature ◽  
Matrix Metal ◽  
Property Evaluation ◽  
The Matrix

AbstractThe paper describes a different condition of pouring temperature by sand and permanent mould to produce A356-6 wt% TiB2 metal matrix composites by in-situ method salt metal reaction route. The observation of SEM micrographs shows particle distribution of the TiB2 and it appears in hexagonal shape in Al matrix. The results of X-ray diffraction (XRD) analysis confirmed the formation of those TiB2 particulates and the results showed TiB2 particles are homogeneously dispersed throughout the matrix metal. Subsequent structure-property evaluation studies indicated sub-micron size reinforcement of in-situ formed TiB2 particles with improved physical and mechanical properties as compared to sand and permanent mould of Al-TiB2 composites. From, the permanent mould Al-TiB2 composite has an advantage of increase the properties over sand mould Al-TiB2 composite.

scholarly journals The role of taking into account the interatomic interaction in predicting the complex of structurally-sensitive properties of steels and alloys for special purpose

2018 ◽  
pp. 361-370
Author(s):  
I.R. Snihura ◽  
D.N. Togobitskaya
Keyword(s):  
Computational Models ◽  
State Parameter ◽  
Interatomic Interaction ◽  
Homogeneous System ◽  
Experimental Information ◽  
Structure Property ◽  
Chain Composition ◽  
Forecast Models ◽  
Composition Structure

The aim of the work is to identify the influence of the chemical composition of steels and special-purpose alloys on the formation of their physicochemical and structural-sensitive properties. This problem is solved by mathematical modeling of the inseparable chain «composition - structure – property» taking into account the parameters of interatomic interaction in the melt based on the concept of a directed chemical bond. A steel melt is considered as a chemically homogeneous system, and the state of the melts is expressed through a set of integral parameters, the main of which are: Zy - system charge state parameter (e); r - statistically average internuclear distance (10-1nm); tgα is a constant for each element, which characterizes the change in the radius of the ion as its charge changes. On the basis of experimental information on properties and using the parameters of interatomic interaction, computational models are proposed for predicting the properties of steels and alloys. The forecast models took into account the parameters of micro-inhomogeneity of steel, which ensured a high accuracy of the operational forecast. A comparative analysis of the results of steel melting with the corresponding calculations based on the JMatPro software package confirmed the effectiveness of using the interatomic interaction parameters as models. The proposed models for determining the melting of chromium-nickel steels are recommended for use with the content of basic elements Cr, Ni from 0 to 30%. The research results are recommended for use in industrial environments through the integration of the developed models in the process control system of steelmaking, which will contribute to the directed formation of the composition and properties of smelting products, as well as reducing energy costs.

Composition–Structure–Property Correlations in Rare-Earth-Doped Heavy Metal Oxyfluoride Glasses

2019 ◽  
Vol 123 (36) ◽  
pp. 22478-22490 ◽  
Author(s):  
Carsten Doerenkamp ◽  
Eduar Carvajal ◽  
Claudio J. Magon ◽  
Walter J. G. J. Faria ◽  
J. Pedro Donoso ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Rare Earth ◽  
Structure Property ◽  
Oxyfluoride Glasses ◽  
Composition Structure ◽  
Rare Earth Doped ◽  
Property Correlations

Composition-Structure-Property Relations of Compressed Borosilicate Glasses

2014 ◽  
Vol 2 (2) ◽  
Author(s):  
Mouritz N. Svenson ◽  
Tobias K. Bechgaard ◽  
Søren D. Fuglsang ◽  
Rune H. Pedersen ◽  
Anders Ø. Tjell ◽  
...  
Keyword(s):  
Borosilicate Glasses ◽  
Structure Property ◽  
Property Relations ◽  
Composition Structure

NANOINDENTATION AND ASH CONTENT STUDY OF AGE DEPENDENT CHANGES IN PORCINE CORTICAL BONE

2015 ◽  
Vol 15 (05) ◽  
pp. 1550074 ◽  
Author(s):  
MICHAEL CHITTENDEN ◽  
AHMAD RAEISI NAJAFI ◽  
JUN LI ◽  
IWONA JASIUK
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Cortical Bone ◽  
Age Groups ◽  
Structure Property ◽  
Micro Computed Tomography ◽  
Mineral Contents ◽  
Age Related ◽  
Age Dependent ◽  
Composition Structure

Composition-structure-property relations of bone provide fundamental understanding of bone quality. The objective of this paper was to investigate age dependent changes in the composition, structure and mechanical properties of porcine femoral cortical bone at mid-diaphysis region from six age groups (1, 3.5, 6, 12, 30, 48 months). This study was motivated by the fact that limited data is available in the literature on young porcine cortical bone. Nanoindentation technique with Berkovich fluid cell tip was employed to measure the elastic modulus and hardness. Individual lamellae were indented in the longitudinal direction of bone in different microstructural components (osteonal, interstitial and plexiform bone). A grid of indentations was also made on one bone sample to obtain spatial variations in the elastic modulus and hardness. Ash and water content tests were performed to measure water, organic and mineral contents of bone as a function of age. Finally, high resolution micro-computed tomography was used to measure porosity and visualize three-dimensional void structures. We found that the elastic modulus and hardness of bone increased with age but at different rates in each microstructural component. The mineral content increased correspondingly with age while the porosity decreased. The obtained structure, composition, and mechanical properties data give new insights on the age related changes in young cortical bone and can serve as inputs for and validation of multiscale models of bone.

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