Innovative research carried out at the nanocenter of the NRC “Kurchatov Institute” – CRISM “Prometey”

2021 ◽  
pp. 82-108
Author(s):  
T. I. Bobkova ◽  
R. Yu. Bystrov ◽  
O. V. Vasilieva ◽  
A. F. Vasiliev ◽  
D. A. Gerashchenkov ◽  
...  
Keyword(s):  
Surface Modification ◽  
Composite Materials ◽  
Magnetron Sputtering ◽  
Alternative Energy ◽  
Technical Equipment ◽  
Structural Ceramics ◽  
Kurchatov Institute ◽  
Biological Objects ◽  
The Past ◽  
Innovative Research

This article presents the results of comprehensive innovative research carried out over the past 15 years at the Nanocenter of the NRC “Kurchatov Institute” – CRISM “Prometey” in the following areas: the creation of coatings based on quasicrystals of the Al-Cu-Fe system, laser synthesis technologies, systems electromagnetic protection of technical equipment and biological objects, structural ceramics and composite materials, technologies for surface modification and magnetron sputtering, obtaining powders by melt spraying, hydrogen and alternative energy.

Microstructural Evolution in Al-Ti Multilayered Film with Annealing

1999 ◽  
Vol 5 (S2) ◽  
pp. 836-837
Author(s):  
R. Mitra ◽  
W.A. Chiou ◽  
A.Madan ◽  
R. Hoffman ◽  
J.R. Weertman
Keyword(s):  
Magnetron Sputtering ◽  
Ingot Metallurgy ◽  
Multilayered Film ◽  
Multilayered Structures ◽  
Multilayered Films ◽  
Specific Strength ◽  
The Past ◽  
High Specific Strength ◽  
Significant Interest ◽  
Deposited Film

There has been a significant interest in the development of dispersion-hardened aluminum for many years for high specific strength and modulus. Such materials are usually processed by powder or ingot metallurgy routes. In this study, Al3 Ti dispersion hardened Al was obtained by annealing Al-Ti multilayers. Al-Ti multilayered films have been characterized in the past by observing the structure of the layers, as well as tensile properties and hardness. This paper reports the structure of Al-Ti multilayers and the evolution of matrix and dispersoid microstructure on annealing.The Al-Ti multilayered structures were prepared by magnetron sputtering using Al and Ti as targets and either Si (100) or NaCl as substrates. The bi-layer thickness was maintained around 16 nm with Ti constituting 12% of the total. The substrate was alternately moved below the Al and Ti targets for the purpose of deposition. The as-deposited film on the substrate and NaCl salts were annealed at 400°C for periods between 1 and 24 h in a vacuum (10−5 torr) furnace.

An Introduction to the Impact Behaviour of Polymer Composites Using Simplified Beam Models

1998 ◽  
Vol 26 (2) ◽  
pp. 89-110 ◽  
Author(s):  
R. A. W. Mines
Keyword(s):  
Composite Materials ◽  
Undergraduate Students ◽  
Progressive Collapse ◽  
Structural Response ◽  
Sandwich Beams ◽  
Three Point Bending ◽  
The Past ◽  
Structural Case ◽  
The University ◽  
The Impact

The paper describes a final-year undergraduate course that has been taught at the University of Liverpool for the past three years. The main aims of the course are to introduce the student to the design of structures using multi-component (composite) materials and to the performance of such structures under impact loading. Given the complexity of generalized composite behaviour and of structural crashworthiness, a simple structural case is considered, namely, a beam subject to three-point bending. A feature of the course is that not only is linear structural response considered but also non-linear (progressive) structural collapse is covered. The course is split into four parts, namely: (i) analysis of composite laminae, (ii) analysis of laminated beams, (iii) local and global effects in sandwich beams, and (iv) post-failure and progressive collapse of sandwich beams. Static and impact loadings are considered. Comments are made on how the theories are simplified and communicated to the undergraduate students.

scholarly journals Self-Healing Materials for Electronics Applications

2022 ◽  
Vol 23 (2) ◽  
pp. 622
Author(s):  
Fouzia Mashkoor ◽  
Sun Jin Lee ◽  
Hoon Yi ◽  
Seung Man Noh ◽  
Changyoon Jeong
Keyword(s):  
Energy Storage ◽  
Composite Materials ◽  
Crack Formation ◽  
Review Article ◽  
Self Healing ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
The Past ◽  
Repair Mechanisms ◽  
Energy Harvesting Devices

Self-healing materials have been attracting the attention of the scientists over the past few decades because of their effectiveness in detecting damage and their autonomic healing response. Self-healing materials are an evolving and intriguing field of study that could lead to a substantial increase in the lifespan of materials, improve the reliability of materials, increase product safety, and lower product replacement costs. Within the past few years, various autonomic and non-autonomic self-healing systems have been developed using various approaches for a variety of applications. The inclusion of appropriate functionalities into these materials by various chemistries has enhanced their repair mechanisms activated by crack formation. This review article summarizes various self-healing techniques that are currently being explored and the associated chemistries that are involved in the preparation of self-healing composite materials. This paper further surveys the electronic applications of self-healing materials in the fields of energy harvesting devices, energy storage devices, and sensors. We expect this article to provide the reader with a far deeper understanding of self-healing materials and their healing mechanisms in various electronics applications.

scholarly journals SURFACE MODIFICATION OF TITANIUM DIOXIDE NANOPARTICLES WITH ACRYLIC ACID/ISOBUTYLENE COPOLYMER UNDER ULTRASONIC TREATMENT

2019 ◽  
Vol 16 (32) ◽  
pp. 338-344
Author(s):  
Nikolay A. BULYCHEV ◽  
Lev N. RABINSKIY
Keyword(s):  
Titanium Dioxide ◽  
Surface Modification ◽  
Composite Materials ◽  
Acrylic Acid ◽  
Ultrasonic Treatment ◽  
Titanium Dioxide Nanoparticles ◽  
Polymer Coatings ◽  
Pigment Surface ◽  
Electrokinetic Sonic Amplitude ◽  
Modification Of Titanium

The influence of the ultrasonic treatment of block copolymer solution on its solid-liquid interface behavior was investigated in detail. The surface modification of titanium dioxide nanoparticles in aqueous dispersions of specially tailor-made periodic acrylic acid/isobutylene copolymer by ultrasonic treatment was studied in order to get new approaches for the creation of hybrid composite materials or polymer coatings. The pigment surface modification by the above copolymer was comparatively investigated regarding conventional adsorption as contrasted to an ultrasonic treatment assisted procedure. The course and efficiency of the polymer adsorption onto the pigment surface were quantified by electrokinetic sonic amplitude measurements. The higher efficiency of the pigment surface coating by the copolymer as achieved by ultrasonic treatment in comparison to conventional adsorption is a consequence of ultrasonically induced pigment surface activation. Two perspective avenues of the utilization of the discovered effects for creation of organic-inorganic composite materials are anticipated: the nanoparticles could first be treated by ultrasound in the presence of polymers and so create a surface modifying coating and the second option is an entrainment of the nanoparticles into the monomer matrix which can be polymerized afterward yielding a polymer with immobilized nanoparticles.

Effect of Surface Modification of Bioactive Glass on Properties of Poly-L-lactide Composite Materials

2012 ◽  
Vol 51 (8) ◽  
pp. 1637-1646 ◽  
Author(s):  
Zhihua Zhou ◽  
Lihua Liu ◽  
Qingquan Liu ◽  
Qingfeng Yi ◽  
Wennan Zeng ◽  
...  
Keyword(s):  
Surface Modification ◽  
Composite Materials ◽  
Bioactive Glass ◽  
Effect Of Surface

Formation of the Structure and Properties of Epoxy-Based Composite Materials

2020 ◽  
Vol 992 ◽  
pp. 336-340
Author(s):  
V.A. Gafarova ◽  
J. V. Bazrova ◽  
L.Z. Teltsova
Keyword(s):  
Composite Materials ◽  
Epoxy Resins ◽  
Structural Integrity ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Structure And Properties ◽  
Gas Industry ◽  
The Past

Over the past fifteen years, Russian and foreign scientists have conducted a large amount of research in the development and use of composite materials based on epoxy resins, including the ways to restore structural integrity. In the oil and gas industry, composite materials are used for repair works.

Effects of Surface Modification on the Properties of Poly(lactide-co-glycolide) Composite Materials

2009 ◽  
Vol 48 (6) ◽  
pp. 658-664 ◽  
Author(s):  
Fan Xin ◽  
Chen Jian ◽  
Ruan Jianming ◽  
Zhou Zhongcheng ◽  
Zou Jianpeng
Keyword(s):  
Surface Modification ◽  
Composite Materials
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