Application of the hereditary creep theory in assessing the effect of temperature influence on the strength of carbon fibre plastics

Plane stationary shear flow of the nematic liquid crystal with weak surface anchoring is investigated. The effect of temperature, external fields, and the nature of the surface coupling on the formation of orientation instabilities is investigated.

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High performance thermoplastic polymer for the compressive behaviour of carbon fibre reinforced composites

Pigment & Resin Technology ◽

10.1108/prt-10-2019-0090 ◽

2020 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Ankang Liu ◽

Bing Wang ◽

Fei Li

Keyword(s):

Carbon Fibre ◽

Failure Mode ◽

High Performance ◽

Failure Modes ◽

Kink Band ◽

Joint Effect ◽

Effect Of Temperature ◽

Content Type ◽

The Matrix ◽

Forming Temperature

Purpose This paper aims to study the effect of elevated temperature on the compression behaviour of carbon fibre polyphenylene sulphide (CF/PPS) laminates notched and unnotched specimens made by film stacking method (FSM). Design/methodology/approach The surface of CF was coated with a silane coupling agent to form an effective transition layer with PPS, so as to enhance the interfacial interaction between CF and PPS. Considering the influence of fabrication pressure, forming temperature and cooling rate on the properties of laminates to obtain a reasonable preparation process. Conducting a compressive experiment of notched and unnotched specimens at different temperatures, which failure modes were examined by scanning electron microscope and stereo microscope. Findings The experimental observations highlight that with the increase of temperature, the transition failure mode from fibre broken to kink-band appeared in unnotched specimens, which were closely attributed to the matrix state. The notched specimens appeared more complex failure mode, which can be attributed to the joint effect of temperature and opening hole. Research implications A simple way of FSM for composite material laminates has been developed by using woven CF and PPS films. Originality/value The outcome of this study will help to understand the compression response mechanism of composite materials made by FSM at different temperature.

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Effect of temperature influence on elemental iron content in silica-alumina ceramics

Materials Science ◽

10.31044/1684-579x-2019-0-6-37-40 ◽

2019 ◽

pp. 37-40

Author(s):

O. N. Kanygina ◽

◽

I. N. Anisina ◽

O. P. Kushnareva ◽

A. A. Yudin ◽

...

Keyword(s):

Iron Content ◽

Effect Of Temperature ◽

Temperature Influence ◽

Alumina Ceramics ◽

Elemental Iron ◽

Silica Alumina

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A note on the effect of temperature on the friction and wear behaviour of carbon-fibre-reinforced Polyetheretherketone (PEEK-CF30) at dry sliding

International Journal of Microstructure and Materials Properties ◽

10.1504/ijmmp.2005.008128 ◽

2005 ◽

Vol 1 (1) ◽

pp. 3 ◽

Cited By ~ 1

Author(s):

J. Paulo Davim ◽

Rosaria Cardoso

Keyword(s):

Carbon Fibre ◽

Friction And Wear ◽

Effect Of Temperature ◽

Wear Behaviour ◽

Dry Sliding

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A Novel Tool for Visualization of Water Molecular Structure and Its Changes, Expressed on the Scale of Temperature Influence

Molecules ◽

10.3390/molecules25092234 ◽

2020 ◽

Vol 25 (9) ◽

pp. 2234 ◽

Cited By ~ 2

Author(s):

Zoltan Kovacs ◽

Bernhard Pollner ◽

George Bazar ◽

Jelena Muncan ◽

Roumiana Tsenkova

Keyword(s):

Molecular Structure ◽

Pure Water ◽

Molecular Structures ◽

Effect Of Temperature ◽

Temperature Influence ◽

Temperature Changes ◽

Equivalent Effect ◽

Almost All ◽

Spectral Patterns ◽

First Time

Aquaphotomics utilizes water-light interaction for in-depth exploration of water, its structure and role in aqueous and biologic systems. The aquagram, a major analytical tool of aquaphotomics, allows comparison of water molecular structures of different samples by comparing their respective absorbance spectral patterns. Temperature is the strongest perturbation of water changing almost all water species. To better interpret and understand spectral patterns, the objective of this work was to develop a novel, temperature-scaled aquagram that provides standardized information about changes in water molecular structure caused by solutes, with its effects translated to those which would have been caused by respective temperature changes. NIR spectra of Milli-Q water in the temperature range of 20–70 °C and aqueous solutions of potassium chloride in concentration range of 1 to 1000 mM were recorded to demonstrate the applicability of the proposed novel tool. The obtained results presented the influence of salt on the water molecular structure expressed as the equivalent effect of temperature in degrees of Celsius. The temperature-based aquagrams showed the well-known structure breaking and structure making effects of salts on water spectral pattern, for the first time presented in the terms of temperature influence on pure water. This new method enables comparison of spectral patterns providing a universal tool for evaluation of various bio-aqueous systems which can provide better insight into the system’s functionality.

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The interlaminar and intralaminar fracture toughness of carbon-fibre/polymer composites: The effect of temperature

Composites Science and Technology ◽

10.1016/s0266-3538(97)00047-x ◽

1997 ◽

Vol 57 (11) ◽

pp. 1433-1444 ◽

Cited By ~ 52

Author(s):

Kevin D. Cowley ◽

Peter W.R. Beaumont

Keyword(s):

Fracture Toughness ◽

Carbon Fibre ◽

Polymer Composites ◽

Effect Of Temperature

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Nucleation of Disorder in Fe3Al Alloys

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100061574 ◽

1967 ◽

Vol 25 ◽

pp. 312-313

Author(s):

P. R. Swann ◽

W. R. Duff ◽

R. M. Fisher

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Annealing Temperature ◽

Antiphase Domain ◽

Effect Of Temperature ◽

Domain Structures ◽

Transmission Electron ◽

Domain Boundaries ◽

Higher Temperature ◽

The One

Recently we have investigated the phase equilibria and antiphase domain structures of Fe-Al alloys containing from 18 to 50 at.% Al by transmission electron microscopy and Mössbauer techniques. This study has revealed that none of the published phase diagrams are correct, although the one proposed by Rimlinger agrees most closely with our results to be published separately. In this paper observations by transmission electron microscopy relating to the nucleation of disorder in Fe-24% Al will be described. Figure 1 shows the structure after heating this alloy to 776.6°C and quenching. The white areas are B2 micro-domains corresponding to regions of disorder which form at the annealing temperature and re-order during the quench. By examining specimens heated in a temperature gradient of 2°C/cm it is possible to determine the effect of temperature on the disordering reaction very precisely. It was found that disorder begins at existing antiphase domain boundaries but that at a slightly higher temperature (1°C) it also occurs by homogeneous nucleation within the domains. A small (∼ .01°C) further increase in temperature caused these micro-domains to completely fill the specimen.

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The effect of temperature on high-resolution TEM image contrast

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100139573 ◽

1995 ◽

Vol 53 ◽

pp. 640-641

Author(s):

T. Geipel ◽

W. Mader ◽

P. Pirouz

Keyword(s):

Form Factor ◽

Inelastic Scattering ◽

Accurate Method ◽

Waller Factor ◽

Effect Of Temperature ◽

Specimen Thickness ◽

Influence Of Temperature ◽

Debye Waller Factor ◽

Influence Of Temperature On ◽

Atomic Form Factor

Temperature affects both elastic and inelastic scattering of electrons in a crystal. The Debye-Waller factor, B, describes the influence of temperature on the elastic scattering of electrons, whereas the imaginary part of the (complex) atomic form factor, fc = fr + ifi, describes the influence of temperature on the inelastic scattering of electrons (i.e. absorption). In HRTEM simulations, two possible ways to include absorption are: (i) an approximate method in which absorption is described by a phenomenological constant, μ, i.e. fi; - μfr, with the real part of the atomic form factor, fr, obtained from Hartree-Fock calculations, (ii) a more accurate method in which the absorptive components, fi of the atomic form factor are explicitly calculated. In this contribution, the inclusion of both the Debye-Waller factor and absorption on HRTEM images of a (Oll)-oriented GaAs crystal are presented (using the EMS software.Fig. 1 shows the the amplitudes and phases of the dominant 111 beams as a function of the specimen thickness, t, for the cases when μ = 0 (i.e. no absorption, solid line) and μ = 0.1 (with absorption, dashed line).

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