scholarly journals Preparation and study of thermostable composites based on solid magnesium phosphate and calcium phosphate binders

2021 ◽  
pp. 50-61
Author(s):  
Natalia S. Apanasevich ◽  
Konstantin N. Lapko ◽  
Alexander N. Kudlash ◽  
Aliaksei A. Sokal ◽  
Yury D. Kliaulin ◽  
...  
Keyword(s):  
Composite Materials ◽  
Calcium Phosphate ◽  
Thermal Effects ◽  
High Strength ◽  
Strength Properties ◽  
Magnesium Phosphate ◽  
Phosphate Binders ◽  
Temperature Range ◽  
Low Weight ◽  
Calcium Magnesium

Thermostable composite materials based on solid magnesium phosphate and calcium phosphate, as well as hybrid calcium magnesium phosphate binders have been developed and investigated. Thermal and phase transformations of the phosphate composites have been studied. Strength characteristics of composite materials have been determined in the temperature range of 20–1000 °C. It is shown that the obtained phosphate composites have high strength properties (compressive strength reaches 120–130 MPa) and are characterised by high thermal stability in the temperature range up to 1000 °С. The low weight loss of the studied composites (no more than 10 %) and the absence of significant thermal effects indicate that they are promising for use as a thermostable matrix for obtaining functional composite materials.

Self-setting bioactive calcium–magnesium phosphate cement with high strength and degradability for bone regeneration

2008 ◽  
Vol 4 (6) ◽  
pp. 1873-1884 ◽  
Author(s):  
Fan Wu ◽  
Jie Wei ◽  
Han Guo ◽  
Fangping Chen ◽  
Hua Hong ◽  
...  
Keyword(s):  
Bone Regeneration ◽  
High Strength ◽  
Magnesium Phosphate ◽  
Calcium Magnesium

scholarly journals Digital Shearography for NDT: Phase Measurement Technique and Recent Developments

2018 ◽  
Vol 8 (12) ◽  
pp. 2662 ◽  
Author(s):  
Qihan Zhao ◽  
Xizuo Dan ◽  
Fangyuan Sun ◽  
Yonghong Wang ◽  
Sijin Wu ◽  
...  
Keyword(s):  
Composite Materials ◽  
Measurement Technique ◽  
Composite Structures ◽  
Phase Measurement ◽  
High Sensitivity ◽  
High Strength ◽  
Development Trend ◽  
New Techniques ◽  
Low Weight ◽  
Recent Developments

Composite materials have seen widespread use in the aerospace industry and are becoming increasingly popular in the automotive industry due to their high strength and low weight characteristics. The increasing usage of composite materials has resulted in the need for more effective techniques for nondestructive testing (NDT) of composite structures. Of these techniques, digital shearography is one the most sensitive and accurate methods for NDT. Digital shearography can directly measure strain with high sensitivity when combined with different optical setups, phase-shift techniques, and algorithms. Its simple setup and less sensitivity to environmental disturbances make it particularly well suited for practical NDT applications. This paper provides a review of the phase measurement technique and recent developments in digital shearographic NDT. The introduction of new techniques has expanded the range of digital shearography applications and made it possible to measure larger fields and detect more directional or deeper defects. At the same time, shearography for different materials is also under research, including specular surface materials, metallic materials, etc. Through the discussion of recent developments, the future development trend of digital shearography is analyzed, and the potentials and limitations are demonstrated.

scholarly journals Development of Vinyl Ester and Reed Composite Material with Weight Fraction of 10% and Reinforcement at Different Orientations

2019 ◽  
Vol 9 (3) ◽  
pp. 4306-4309
Author(s):  
Q. A. Kazi ◽  
Q. B. Jamali ◽  
M. T. Bhatti ◽  
U. A. Rajput ◽  
I. A. Kazi ◽  
...  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Natural Fiber ◽  
Tensile Elongation ◽  
High Strength ◽  
Weight Fraction ◽  
Maintenance Cost ◽  
Weight Density ◽  
Low Weight ◽  
The 1960S

Composite materials have been used to resolve industrial problems. Considerable attention from the industrial side started in the 1960s with the introduction of polymer-based composite materials. Their advantages such as low weight (density), resistance to corrosion, high strength and low maintenance cost made composite materials an attractive substitute to conventional materials. A new composite material was developed with 10% natural fiber at 0o, 90o and 0/90o orientations resulting in ample improvements in the mechanical properties as compared to previous studies. The sample at 0/90o orientation gives the best results with tensile, tensile strength, tensile elongation and Young's Modulus values of 2458.19N, 4594.5MPA, 4.7% and 23.0 respectively

scholarly journals Evaluation of Mechanical Properties of Kevlar Fibre Reinforced Aluminium 6061 Sandwich Composites

2018 ◽  
Vol 7 (3.6) ◽  
pp. 382
Author(s):  
B Senthil Kumar ◽  
D Muruganandam ◽  
J Jayapriya
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Epoxy Resin ◽  
Composite Laminate ◽  
High Strength ◽  
Good Property ◽  
Sandwich Composites ◽  
High Stiffness ◽  
Reinforced Composite ◽  
Low Weight

In the present scenario composite materials has got a good value in making a high strength component. Kevlar fibre reinforced composite have a good property of making materials with high strength and low weight. With proper fabrication these Kevlar fibres will produce good property in making components that will be used for specific applications. Our project is dealt with the preparation of a laminate using Kevlar fibre reinforced composite in 0o-90o orientation by using epoxy resin as adhesive and to analyze the mechanical properties of that particular laminate and study that it has high mechanical properties or not. Main objective of this project is to make a composite laminate with high strength, high stiffness, and low weight for various applications. 

Analysis of Mechanical Properties on Roselle Fibre with Polymer Matrix Reinforced Composite

2016 ◽  
Vol 16 ◽  
pp. 1-6 ◽  
Author(s):  
S. Nallusamy
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Weight Ratio ◽  
High Strength ◽  
Strength Properties ◽  
Reinforced Composite ◽  
Composite Field ◽  
Structural Applications

Over the past two decades it has been established that composite materials are the leading emerging materials. The natural fibres present a number of advantages over traditional synthetic fibres because of their better corrosion resistance, excellent thermo-mechanical properties and high strength to weight ratio. Also the composite materials play an important role in maintaining the eco-friendly design requirements. Among this, polymer matrix composite is one of the recent developing sectors on the composite field, because it has high strength with less density as compared to the metal matrix composite. Depending on the applications, the properties of the polymer reinforced composite are improved by modifying compositions, process of fabrication and direction of fibre etc. In this analysis the Roselle Fibre (Hibiscus Sabdariffa) is reinforced with polymer composite by wt % in the mode of compression molding. The mechanical properties of the above fabricated material were analyzed by ASTM Standards and also the characterization of polymer composites were analysed using SEM. The compressive strength and the hardness value were high as compared to other strength properties; hence it is more suitable for compressive and structural applications. The results concluded that the treated fibre with chemical reveals better compatibility with polymer matrix than that of untreated fibre.

Development of Composite Materials for Pefc bipolar Plates

1999 ◽  
Vol 575 ◽  
Author(s):  
Deanna Busick ◽  
Mahlon Wilson
Keyword(s):  
Composite Material ◽  
Corrosion Resistance ◽  
Fuel Cell ◽  
Composite Materials ◽  
Gas Permeability ◽  
High Strength ◽  
Bipolar Plates ◽  
Cost Constraints ◽  
Low Weight

ABSTRACTThe most costly and problematic components of fuel cell stacks may be bipolar plates. Besides meeting cost constraints, bipolar plates must possess a host of other properties including low gas permeability, corrosion resistance, low weight, high strength, and manufacturability. While we have developed a baseline composite material that meets these requirements, further optimization and development have resulted in significant improvements in properties and processability.

Stochastic Micro-Meso Modeling of Cross-Ply Composites for Prediction of Softening

2018 ◽  
Vol 284 ◽  
pp. 120-126
Author(s):  
A.A. Shabley ◽  
S.B. Sapozhnikov ◽  
L.V. Shipulin
Keyword(s):  
Composite Materials ◽  
High Strength ◽  
Middle Layer ◽  
Strength Properties ◽  
Composite Panel ◽  
Automobile Manufacturing ◽  
Level Model ◽  
Micro Level ◽  
Loss Of Strength ◽  
Selection Of

Composites are extensively using in modern industry (aircraft and automobile manufacturing, construction, etc.). Nowadays high-strength and lightweight composite materials, such as FRPs, exhibit elastic and strength anisotropy and deform nonlinearly at high stresses. Also, such materials have small enough failure strain in comparison with metals, and they are drastically more expensive than steel and aluminum alloys. The most important task in the design of structures made of composite materials is the minimization of its weight without loss of strength properties. We presented the method for modeling a UD FRP with randomly arranged fibers at the micro-and meso-level. These two approaches were compared on the problem of the composite panel tension. The selection of the mesomodel mechanical characteristics was based on data of the micro-level model. In the mesomodel, the damage accumulation of middle layer (90° layer) was simulated using the Stochastic Failure criterion (random Mott scatter of layer strength). The calculated curves and data, obtained in micro-and mesomodels, correlate well with each other.

scholarly journals Current technologies for recycling fiber-reinforced composites

2020 ◽  
Vol 70 (3) ◽  
pp. 24-28
Author(s):  
Aleksandra Jelić ◽  
Danijela Kovačević ◽  
Marina Stamenović ◽  
Slaviša Putić
Keyword(s):  
Composite Materials ◽  
New Technologies ◽  
High Strength ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
High Toughness ◽  
Reinforced Composite ◽  
Low Weight

High strength, high toughness, and low weight make fiber-reinforced composite materials important as an alternative to traditional materials. Due to their application in different fields, such as construction, aviation, marine, automotive technologies and biomedicine, their production has increased leading to the increasement of composite wastes. New technologies for managing fiber-reinforced composite wastes have been developed to solve the issue of end-of-life of these materials. The aim of this paper is to emphasize recycling technologies used for fiber reinforced composites, and their potential reusage.

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