scholarly journals Anti-icing Properties on Surfaces through a Functional Composite: Effect of Ionic Salts

ACS Omega ◽  
2018 ◽  
Vol 3 (7) ◽  
pp. 7934-7943 ◽  
Author(s):  
Derya Aydin ◽  
M. Birgul Akolpoglu ◽  
Riza Kizilel ◽  
Seda Kizilel
Keyword(s):  
Composite Effect ◽  
Functional Composite ◽  
Ionic Salts

Functional measures in spinocerebellar ataxia (SCA) – evaluation of a SCA Functional Composite Index

2007 ◽  
Vol 34 (S 2) ◽  
Author(s):  
T Schmitz-Hübsch ◽  
D Timmann-Braun ◽  
S Szymanski ◽  
S Döhlinger ◽  
JS Kang ◽  
...  
Keyword(s):  
Spinocerebellar Ataxia ◽  
Composite Index ◽  
Functional Composite ◽  
Functional Measures

scholarly journals Mechanical Behavior of Hydroxyapatite-Chitosan Composite: Effect of Processing Parameters

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 213
Author(s):  
Hamid Ait Said ◽  
Hassan Noukrati ◽  
Hicham Ben Youcef ◽  
Ayoub Bayoussef ◽  
Hassane Oudadesse ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Compressive Strength ◽  
Mechanical Strength ◽  
Bone Repair ◽  
Mechanical Stability ◽  
Three Dimensional ◽  
Processing Parameters ◽  
Composite Effect ◽  
Solid Liquid ◽  
The Impact

Three-dimensional hydroxyapatite-chitosan (HA-CS) composites were formulated via solid-liquid technic and freeze-drying. The prepared composites had an apatitic nature, which was demonstrated by X-ray diffraction and Infrared spectroscopy analyses. The impact of the solid/liquid (S/L) ratio and the content and the molecular weight of the polymer on the composite mechanical strength was investigated. An increase in the S/L ratio from 0.5 to 1 resulted in an increase in the compressive strength for HA-CSL (CS low molecular weight: CSL) from 0.08 ± 0.02 to 1.95 ± 0.39 MPa and from 0.3 ± 0.06 to 2.40 ± 0.51 MPa for the HA-CSM (CS medium molecular weight: CSM). Moreover, the increase in the amount (1 to 5 wt%) and the molecular weight of the polymer increased the mechanical strength of the composite. The highest compressive strength value (up to 2.40 ± 0.51 MPa) was obtained for HA-CSM (5 wt% of CS) formulated at an S/L of 1. The dissolution tests of the HA-CS composites confirmed their cohesion and mechanical stability in an aqueous solution. Both polymer and apatite are assumed to work together, giving the synergism needed to make effective cylindrical composites, and could serve as a promising candidate for bone repair in the orthopedic field.

A New Functional Composite for Photovoltaic and Sensor Applications

2021 ◽  
pp. 2000785
Author(s):  
Puja Ghosh ◽  
Anurag Roy ◽  
Soumita Mukhopadhyay ◽  
Mousumi Narjinary ◽  
Senthilarasu Sundaram ◽  
...  
Keyword(s):  
Functional Composite ◽  
Sensor Applications

Abrasive wear response of Al-Si–SiCp composite: Effect of friction heat and friction coefficient

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Raj Kumar Singh ◽  
Amit Telang ◽  
Satyabrata Das
Keyword(s):  
Heat Treatment ◽  
Friction Coefficient ◽  
Abrasive Wear ◽  
Applied Load ◽  
Frictional Heating ◽  
Matrix Alloy ◽  
Composite Effect ◽  
Friction Heat ◽  
Wear Response ◽  
Abrasive Size

Abstract The effects of friction heat and friction coefficient on the abrasive wear response of Al-7.5Si–SiCp composite against low-cost hypereutectic (Al-17.5Si) alloy were investigated as functions of the abrasive size and applied load in both as-cast and after heat-treatment conditions. Experiments were performed on pin-on-disc apparatus at 38 –80 μm abrasive size, 5 – 20 N applied load, 100 –400 m abrading (sliding) distances and 1 m s–1 constant sliding speed. The frictional heating of as-cast and heat-treated composite was superior compared to the matrix alloy and hypereutectic alloy, whereas the trend reversed for the friction coefficient. The frictional heating and friction coefficient of the materials increased with the abrasive size and applied load in both as-cast and after heat-treatment. The worn surface and wear debris particles were examined by using field emission scanning electron microscopy to understand the wear mechanism.

Study on Constitutive Modeling for Large Deformation Behavior of Polyethylene Considering Strain Rate Effect

2013 ◽  
Author(s):  
Sijia Zhong ◽  
Jianfeng Shi ◽  
Jinyang Zheng
Keyword(s):  
Strain Rate ◽  
Large Deformation ◽  
Constitutive Modeling ◽  
Deformation Behavior ◽  
True Strain ◽  
True Stress ◽  
Uniaxial Tensile ◽  
Pipeline System ◽  
Composite Effect ◽  
Time Deformation

Polyethylene (PE) pipes have been applied in transportation of key energy medium such as natural gas in the past decades. The mechanical property of PE is of great importance for better design and safer application of PE pipeline system. The large deformation behavior is a key character of PE, not only for its significant strain rate sensitivity, but also for localized necking process after yielding. In this paper, a new constitutive modeling method was proposed to charaterize the rate-denpendent large deformation behavior of PE, in which the true stress is regarded as a function of true stain and true strain rate alone. Uniaxial tensile tests of PE were conducted under various cross-head speeds, and a digital camera was used to record the real-time deformation of specimens. By separating the composite effect into respective effect of local true strain and strain rate on the local true stress in the necking region, a phenomenological model for describing the rate-dependent deformation behavior under uniaxial tension was ealstablished. Model results were validated and found in good agreement with experimental data.

Functional composite polymer materials for electrical purpose

2020 ◽  
Author(s):  
Ekaterina Tsobkallo ◽  
Olga Moskalyuk ◽  
Anna Stepashkina ◽  
Vladimir Yudin
Keyword(s):  
Polymer Materials ◽  
Composite Polymer ◽  
Functional Composite

scholarly journals Heterogeneous ZnO-containing catalysts for efficient biodiesel production

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20465-20478
Author(s):  
Anping Wang ◽  
Wenxuan Quan ◽  
Heng Zhang ◽  
Hu Li ◽  
Song Yang
Keyword(s):  
Composite Materials ◽  
Catalytic Conversion ◽  
Biodiesel Production ◽  
Functional Composite ◽  
Recent Advances

This review introduces recent advances in the catalytic conversion of oils into biodiesel using ZnO functional composite materials.

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