EFFECT OF NANOSTRUCTURED AL2O3-TIO2 COATING ON PERFORMANCE OF KEVLAR FABRIC

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RAHMANIFARD ROOHOLLAH; ALIPOUR DAVOOD

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:1 Page(s): 131-140

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Title

EFFECT OF NANOSTRUCTURED AL2O3-TIO2 COATING ON PERFORMANCE OF KEVLAR FABRIC

Author(s)

RAHMANIFARD ROOHOLLAH | ALIPOUR DAVOOD | Issue Writer Certificate

Keywords

AL2O3-TIO2 COATINGQ1

THERMAL SPRAYQ1

HIGH VELOCITY IMPACTQ1

KEVLAR FABRICQ1

Abstract

Since woven fabrics have uniqe characteristrics such as light weight, flexibility, high strength, etc. and they are also capable to be improved for mechanical properties by nano thechnology, it is expectal to gain more efficient composite using intrinsic properties of the ceramic nanoparticles and proper coating method. The uniqe properties of the nanoparticles such as high elastic modulus, high strength to weight ratio etc. as well as participating in defeat mechanisms agains external loadings, can be of the factors reinforcing the textiles. Al2O3-13%TiO2 coatings were deposited on KEVLAR FABRIC substrates from nanostructured powders using atmospheric plasma spraying (APS). A complete characterization of the feedstock confirmed its nanostructured nature. Coating microstructures and phase compositions were characterized using SEM, and XRD techniques. The microstructure comprised two clearly differentiated regions. One region, completely fused, consisted mainly of nanometer-sized grains of a-Al2O3 with dissolved Ti+4. The other region, partly fused, retained the microstructure of the starting powder and was principally made up of nanometer -sized grains of g-Al2O3, as confirmed by FESEM. Coatings were in average slightly lower than the values for nanostructured coating. The results of tensile testing on KEVLAR FABRICs before and after coating showed that APS could improve tensile strength up to 60%. HIGH VELOCITY IMPACT test (V50) performed on coated fabrics well indicated that their ballistic limit experienced a significant increase. In addition, the results of V50 showed revealed that APS can decrease final weight of new composite panel compared to plain polyetylen panel with identical protection level.

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APA: Copy

RAHMANIFARD, ROOHOLLAH, & ALIPOUR, DAVOOD. (2018). EFFECT OF NANOSTRUCTURED AL₂O₃-TIO₂ COATING ON PERFORMANCE OF KEVLAR FABRIC. MODARES MECHANICAL ENGINEERING, 18(1 ), 131-140. SID. https://sid.ir/paper/179393/en

Vancouver: Copy

RAHMANIFARD ROOHOLLAH, ALIPOUR DAVOOD. EFFECT OF NANOSTRUCTURED AL₂O₃-TIO₂ COATING ON PERFORMANCE OF KEVLAR FABRIC. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(1 ):131-140. Available from: https://sid.ir/paper/179393/en

IEEE: Copy

ROOHOLLAH RAHMANIFARD, and DAVOOD ALIPOUR, “EFFECT OF NANOSTRUCTURED AL₂O₃-TIO₂ COATING ON PERFORMANCE OF KEVLAR FABRIC,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 1 , pp. 131–140, 2018, [Online]. Available: https://sid.ir/paper/179393/en

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