Wear Behavior of PAN- and Pitch-Based Carbon Fiber Reinforced Aluminum Alloy Composites under Dry Sliding Condition

Asano, Kazunori; Zainuddin, Muhammad Faiz Bin

doi:10.2320/matertrans.m2017002

Cited by 6 publications

(6 citation statements)

References 10 publications

(21 reference statements)

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“…The lowest air permeability was observed in the sample with 50% Nomex and 50% carbon fibers due to the presence of high-density carbon fibers, which tend to increase the packing of yarn and decrease the porosity. Such findings are supported by the literature [49].…”

Section: Air Permeabilitysupporting

confidence: 90%

“…The cross-relief structure shows relatively higher thickness and thus higher thermal resistance. Thermal resistance has a direct relationship with the thickness of the fabric samples as per the literature [49][50][51]. A blend of 70% Protex and 30% Nomex fibers developed with a vertical tubular knitting structure showed the maximum thermal resistance.…”

Section: Thermal Resistancementioning

confidence: 66%

“…Thermo-physiological comfort is a very important aspect of fabric materials used in next-to-skin applications [49]. This includes the air permeability, thermal resistance and overall moisture management capacity (OMMC).…”

Section: Thermo-physiological Comfort Propertiesmentioning

confidence: 99%

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An Analysis of the Performance and Comfort Properties of Fire-Protective Material by Using Inherently Fire-Retardant Fibers and Knitting Structures

Khan,

Jamshaid,

Mishra

et al. 2023

Materials

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This paper investigates the development of fabric materials using several blends of inherently fire-resistant (FR) fibers and various knitted structures. The samples are evaluated with respect to their performance and comfort-related properties. Inherently fire-resistant fibers, e.g., Nomex, Protex, carbon and FR viscose, were used to develop different structures of knitted fabrics. Cross-miss, cross-relief, and vertical tubular structures were knitted by using optimum fiber blend proportions and combinations of stitches. Several important aspects of the fabric samples were investigated, e.g., their physical, mechanical and serviceability performance. Thermo-physiological and tactile/touch-related comfort properties were evaluated in addition to flame resistance performance. An analysis of mechanical performance indicated that the knitted structure has a significant influence on the tensile strength, bursting strength and pilling resistance. The cross-relief structure proved to be the strongest followed by the cross-miss and vertical tubular structures. The FR station suits made from 70:30 Protex/Nomex exhibited the best combination of tensile and bursting strength; therefore, this material is recommended for making a stable and durable station suit. Interestingly, it was also concluded from the experimental study that knitted samples with a cross-relief structure exhibit the best fire-resistance performance. Fiber blends of 70:30 Protex/Nomex and 70:30 Nomex/carbon were found to be optimum in terms of overall performance. The best flame resistance was achieved with Nomex:carbon fiber blends. These results were confirmed with vertical flammability tests, TGA, DTGA and cone calorimetry analysis. The optimization of blend composition as well as knitting structure/architecture is a crucial finding toward designing the best FR station suit in terms of mechanical, dimensional, thermal, thermo-physiological and flame resistance performance.

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Section: Air Permeabilitysupporting

confidence: 90%

Section: Thermal Resistancementioning

confidence: 66%

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An Analysis of the Performance and Comfort Properties of Fire-Protective Material by Using Inherently Fire-Retardant Fibers and Knitting Structures

Khan,

Jamshaid,

Mishra

et al. 2023

Materials

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“…In order to reduce wear rate and friction related issues, many solid lubricants are introduced in the aluminium matrix. Earlier works reported development of self-lubricating composites reinforced with lubricating materials like graphite and carbon fibers [11,12]. However, the non-wetting and large size graphite particles tend to form defects resulting in premature failure of composites.…”

Section: Introductionmentioning

confidence: 99%

Al/Graphene/CNT hybrid composites: Hardness and sliding wear studies

Naik¹,

Manjunatha²,

Koti³

et al. 2021

FME Transactions

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Graphene and carbon nanotubes are two carbon based materials known for their unique wear and friction properties. It would be quite interesting to understand the wear behavior of aluminium hybrid composites when these two nanosize reinforcements are incorporated into it. The hybrid composites with varying weight fractions of graphene (1, 2, 3 and 5 wt.%) and fixed CNT content of 2 wt.% were produced using powder metallurgy technique. The effect of varying graphene content on hardness and sliding wear of hybrid composites was studied. The wear tests were done as per ASTM G-99 standard with fixed sliding velocity (2 m/s) and sliding distance (1200 m) but varying applied load (10 - 30 N). Worn surface analysis was conducted using scanning electron microscope to arrive at wear mechanisms responsible for wear of aluminium and its hybrid composites. Increase in graphene content led to increase in bulk hardness with highest value of 61 RHN for hybrid composite with 3 wt.% graphene content. The wear rate of hybrid composites was found to be decreasing with enhancement in graphene content. Lower wear rate in hybrid composites was due to the formation of lubricating layer on the worn surface.

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“…It can be concluded that the reinforcing effect of the pitch-based ber was clearly observed only in the pure aluminum at 523 K, and the effect was not observed in the AC8A alloy. On the other hand, this pitchbased ber has an outstanding effect to decrease the thermal expansion 18) , increase the thermal conductivity 20) and improve the machinability 21) and wear resistance 22) of the AC8A alloy. In order to utilize this composite as a wear and heat resistant material, the high temperature strength should be improved.…”

Section: Effects Of Ber-reinforcement On Compressive Properties As Shmentioning

confidence: 99%

Mechanical Properties of Aluminum Composites Reinforced with PAN- and Pitch-Based Short Carbon Fibers

Asano

2017

Mater. Trans.

Self Cite

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Pure aluminum and AC8A aluminum alloy matrix composites, which were reinforced with PAN-and pitch-based short carbon bers, were fabricated by squeeze casting, then the composites were exposed to a heat treatment. The effects of the ber types, composition of the matrix, and heat treatment on the mechanical properties of the composites were investigated. The bers were in a random planar arrangement in the composites. Although the aluminum carbide was formed due to the reaction between the PAN-based ber and pure aluminum during the casting process, there was no reaction products near the PAN-AC8A, pitch-pure aluminum and pitch-AC8A interfaces. Although the ultimate compressive strength of the PAN-based ber composite was greater than that of the pitch-based ber composite under every condition, the strength of the PAN-based ber composite degraded due to the heat treatment when pure aluminum was used as the matrix. Examination of fracture surface indicated that the lower reinforcing effect of the pitch-based ber would be due to delamination at the boundary between the highly-developed graphite crystallites in the ber. A hardness measurement of the bers in the composites using a nano-indenter revealed that the interfacial bonding strength between the pure aluminum and PAN-based ber degraded due to the heat treatment.

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Wear Behavior of PAN- and Pitch-Based Carbon Fiber Reinforced Aluminum Alloy Composites under Dry Sliding Condition

Cited by 6 publications

References 10 publications

An Analysis of the Performance and Comfort Properties of Fire-Protective Material by Using Inherently Fire-Retardant Fibers and Knitting Structures

An Analysis of the Performance and Comfort Properties of Fire-Protective Material by Using Inherently Fire-Retardant Fibers and Knitting Structures

Al/Graphene/CNT hybrid composites: Hardness and sliding wear studies

Mechanical Properties of Aluminum Composites Reinforced with PAN- and Pitch-Based Short Carbon Fibers

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