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REVUE DES COMPOSITES ET DES MATERIAUX AVANCES . Vol. 32, N° 3Mention de date : 06/2022Paru le : 15/06/2022 |
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Ajouter le résultat dans votre panierCompressive and tensile properties of ABS material as a function of 3D printing process parameters / Hind B. Ali in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 32, N° 3 (06/2022)
[article]
Titre : Compressive and tensile properties of ABS material as a function of 3D printing process parameters Type de document : texte imprimé Auteurs : Hind B. Ali, Auteur ; Jawad K. Oleiwi, Auteur ; Farhad M. Othman, Auteur Année de publication : 2022 Article en page(s) : p. 117-123 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Contraintes (mécanique)
Dépôt de fil fondu
Impression tridimensionnelle
Matériaux -- Epaisseur
Matières plastiques -- Propriétés mécaniques
Modélisation par dépôt en fusion
Plan d'expérience
Traction (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : Additive Manufacturing (AM) technologies have been emerged as a fabrication method to obtain engineering components within a short span of time. 3D printing, also referred as additive layer manufacturing technology is one of the powerful methods of rapid prototyping (RP) technique that fabricates three-dimensional engineering components. fused deposition modelling (FDM) is one of the most commonly used additive manufacturing (AM) methods, with applications in modelling, prototyping, and production. Acrylonitrile–butadiene–styrene (ABS) is a widely used industrial thermoplastic that is also the most commonly used material in FDM technology. Understanding the impact of FDM build settings on material characteristics is essential for predicting the behaviour of ABS components. The purpose of this study is to determine the impact of specimen tensile and compressive behaviour on ABS components produced using FDM. The Ultimaker+2 printer is used to create ABS thermoplastic samples for the investigation. The samples are put through their tests using a modified form of ASTM D638 for tensile strength and ASTM D695 for compressive strength. An Instron testing machine is used to put the printed parts to the test. The approach employed was Design of Experiment (DOE). Three primary criteria are used in the plastics experiment: infill density, layer thickness, and infill pattern. We measured the tensile and compressive strengths of zigzag and gyroid specimens, as well as cross specimens. The highest compressive strength at break (25.01 MPa), Young's modulus (2.473 GPa), fracture strength (21.016 MPa), and ultimate tensile stress (23.1 MPa) were all discovered in a sample with 60% infill density, 0.05mm layer thickness, and a GYROID infill pattern. Note de contenu : - Experimental Work : Process parameters - Design of experiments
- Table 1 : Mechanical Characteristics of ABS
- Table 2 : The most important factors and their levels
- Table 3 : L9 orthogonal array
- Table 4 : Design of experiment and tensile and compressive test results (Mpa)
- Table 5 : S/N ratios for tensile and compressive characteristics (MPa)DOI : https://doi.org/10.18280/rcma.320302 En ligne : https://www.iieta.org/download/file/fid/77313 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38178
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Code-barres Cote Support Localisation Section Disponibilité 23830 - Périodique Bibliothèque principale Documentaires Disponible Glycerol /phthalic anhydride novel nano composite for microwave absorbing applications / Batool Abdul Rasool Zaki in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 32, N° 3 (06/2022)
[article]
Titre : Glycerol /phthalic anhydride novel nano composite for microwave absorbing applications Type de document : texte imprimé Auteurs : Batool Abdul Rasool Zaki, Auteur ; Farhan Lafta Rashid, Auteur ; Mohammad N. Al-Baiati, Auteur Année de publication : 2022 Article en page(s) : p. 133-139 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-réflectance
Copolymère glycérol anhydride phtalique
Matériaux hybrides
Micro-ondes
Ondes électromagnétiques -- Absorption
Oxyde de fer
Revêtements -- Propriétés thermiques:Peinture -- Propriétés thermiquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : High-efficiency radar wave absorbing material was prepared utilizing nanoparticles poly (glycerol /phthalic anhydride), and the effect of using these nanocomposites with thermal paint on the properties of electromagnetic absorbing was analyzed and investigated. Results show that when the percentage of nano polymers is increased from 1% to 3%, with the presence of 2.5% of iron oxide, the reflectivity loss value rises dramatically. For the reflectivity up to 27.2dB at a frequency of 8.3 GH and a bandwidth of (8.1-8.2GH), there is a clear attenuation of the radar waves, which is confined within a bandwidth of GH (9-9.3GH). This material can be utilized as a high- efficiency radar wave absorbing applications. Note de contenu : - EXPERIMENTAL PART : Preparation of the polymeric nano material - Preparation of different mixtures proportions- Specimens
- RESULTS AND DISCUSSION : Characterization of prepared novel nano co-polymer- Reflectivity loss
- Table 1 : Mixing ratios and weights of the polymeric material and thermal dyeDOI : https://doi.org/10.18280/rcma.320304 En ligne : https://www.iieta.org/download/file/fid/77315 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38205
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Code-barres Cote Support Localisation Section Disponibilité 23830 - Périodique Bibliothèque principale Documentaires Disponible The effect of chromium on the chemical and physical properties of industrial sludge based geopolymer / Imad El Fellah in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 32, N° 3 (06/2022)
[article]
Titre : The effect of chromium on the chemical and physical properties of industrial sludge based geopolymer Type de document : texte imprimé Auteurs : Imad El Fellah, Auteur ; Rabie Fath Allah, Auteur ; Asmaa Fakih Lanjri, Auteur ; Mohammed Ammari, Auteur ; Laila Ben Allal, Auteur Année de publication : 2022 Article en page(s) : p. 141-147 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Boues résiduaires
Boues thermales -- Analyse
Caractérisation
Chrome
GéopolymèresLes géopolymères sont la réciproque des polymères organiques. À la place de dérivés du pétrole et de la chaîne carbonée, on utilise de la matière minérale composée de silice et d’alumine.
Les géopolymères sont basés sur des alumino-silicates désignés sous le terme poly(sialate), qui est une abréviation de poly(silico-oxo-aluminate) ou (-Si-O-Al-O-)n (soit n le degré de polymérisation). La structure chimique de la Figure 1 montre un géopolymère poly(sialate-siloxo) résultant d'une géosynthèse de poly(silisique) acide (SiO2)n et de potassium alumino-silicate, en milieu alcalin (KOH, NaOH). Dans cette structure, le groupement sialate (Si-O-Al-O-) est un agent de réticulation.
On pense que le mécanisme de la synthèse géochimique se fait par l'intermédiaire d'oligomères (dimère, trimère) qui constituent les véritables groupements structuraux unitaires formant une structure macromoléculaire tridimensionnelle.
Polymères -- Synthèse
Résistance à la compressionIndex. décimale : 668.4 Plastiques, vinyles Résumé : This paper investigates the immobilization of chromium in the industrial sludge-based geopolymer. Mechanical, physical and microstructure properties were used to characterize different samples. The results show that lower heavy metals addition has less effect on the compressive strength. However, excessive addition of Cr(VI) (1.5 and 3%) causes a deterioration of geopolymer matrix with a significant drop of the compressive strength. The compressive strength shows that the use of sodium hydroxide as an alkaline activator is not suitable for chromium immobilization. The use of 1.5 and 3% amount of chromium increases the conductivity of leachates, which explains a change in the microstructure of materials. This is in agreement with the results of compressive strength. XRD patterns of all samples show an amorphous structure with less effect of chromium on the crystalline phases. SEM of the reference sample demonstrates a dense structure of binder. However, the porosity of the matrix increases with the addition of 3% Cr(VI). Note de contenu :
- MATERIALS AND METHODS : Materials - Synthesis of geopolymers - Compressive strength - Conductivity - Characterization
- RESULTS AND DISCUSSION : Compressive strength - The effect of chromium on the conductivity of leachetes - X-ray diffraction analysis (XRD) Scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS)
- Table 1 : Chemical composition of industrial sludge determined by X-ray fluorescence
- Table 2 : The mix proportions used for the preparation of geopolymer samplesDOI : https://doi.org/10.18280/rcma.320305 En ligne : https://www.iieta.org/download/file/fid/77317 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38206
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Code-barres Cote Support Localisation Section Disponibilité 23830 - Périodique Bibliothèque principale Documentaires Disponible Tribological and mechanical performance of epoxy reinforced by fish scales powder / Kifah Ghazi Ali in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 32, N° 3 (06/2022)
[article]
Titre : Tribological and mechanical performance of epoxy reinforced by fish scales powder Type de document : texte imprimé Auteurs : Kifah Ghazi Ali, Auteur ; Ayad Abid Muhmmed, Auteur ; Nabil Kadhim Taieh, Auteur ; Mohanad Kadhim Mejbel, Auteur Année de publication : 2022 Article en page(s) : p. 149-155 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse structurale (ingénierie)
Caractérisation
Composites -- Propriétés mécaniques
Epoxydes
Essais (technologie)
Essais dynamiques
Matériaux -- Renforcement
Poudre d'écailles de poisson
Tribologie (technologie)Index. décimale : 668.4 Plastiques, vinyles Résumé : The study was conducted to use fish scales powder as animal biomass to prepare epoxy composites. Fish scales powder is beneficial in reducing environmental pollutants. The fish scales powder was added to the epoxy matrix for improving the interfacial bonding between the scales and the epoxy matrix. However, a direct method was used to prepare epoxy composites, and samples were cut according to ASTM standards for mechanical and tribological tests. Interfacial interaction between the fish scales powder and epoxy was investigated by FTIR and SEM. It was found that the fish scales powder contents affect the mechanical properties and tribological behaviour of produced composites. Compared to pure epoxy, the load of 10 wt.% fish scales powder increased the tensile strength by 16.0%. As well as, the coefficient of friction was reduced by 16.0% and wear resistance was enhanced by 48.58%. The improvements in the performance of composites are contributed to the hydrogen bonding formed between fish scales powder and epoxy matrix. Note de contenu : - EXPERIMENTAL : Materials - Preparation of fish scales powder /epoxy composites - Characterization and testing
- RESULTS AND DISCUSSION : Structure analysis of the fish scales powder and its composite - Reinforcing analysis - Tensile test - Tribological testDOI : https://doi.org/10.18280/rcma.320306 En ligne : https://www.iieta.org/download/file/fid/77310 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38207
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