scholarly journals The Effect of Temperature on the Tribological Properties of Palm Kernel Activated Carbon-Epoxy Composite

2015 ◽  
Vol 10 (6) ◽  
pp. 428-433 ◽  
Author(s):  
Noor Ayuma Mat Tahir ◽  
Mohd Fadzli Bin Abdollah ◽  
Rafidah Hasan ◽  
Hilmi Amiruddin
Keyword(s):  
Activated Carbon ◽  
Tribological Properties ◽  
Epoxy Composite ◽  
Palm Kernel ◽  
Effect Of Temperature

FRICTIONAL PROPERTIES OF PALM KERNEL ACTIVATED CARBON-EPOXY COMPOSITE UNDER VARIOUS NORMAL LOADS

2015 ◽  
Vol 76 (10) ◽  
Author(s):  
Khai Wei Chua ◽  
Mohd Fadzli Bin Abdollah ◽  
Noor Ayuma Mat Tahir ◽  
Hilmi Amiruddin
Keyword(s):  
Activated Carbon ◽  
Room Temperature ◽  
Epoxy Composite ◽  
Normal Load ◽  
Palm Kernel ◽  
Molding Method ◽  
Frictional Properties ◽  
Pin On Disc ◽  
The Coefficient Of Friction ◽  
Sliding Test

This study investigates the effect of normal load on the frictional properties of palm kernel activated carbon-epoxy (PKAC-E) composite. The PKAC-E composite specimen was fabricated by hot compression molding method. The dry sliding test was performed by using a pin-on-disc tribometer at various normal loads, range from 5 – 100N. The sliding speed and distance were constant. All tests were performed at room temperature. It was found that the coefficient of friction decreases with normal load, though at 60N, friction coefficient increases slightly and remains almost invariant at about 0.04 with normal load. The main conclusion of this study is that PKAC-E composite has a potential for tribological material application but only limited at low normal load under unlubricated conditions.

scholarly journals Influence of contact pressure and sliding speed dependence on the tribological characteristics of an activated carbon-epoxy composite derived from palm kernel under dry sliding conditions

Friction ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 227-236 ◽  
Author(s):  
Dayang Nor Fatin Mahmud ◽  
Mohd Fadzli Bin Abdollah ◽  
Nor Azmmi Bin Masripan ◽  
Noreffendy Tamaldin ◽  
Hilmi Amiruddin
Keyword(s):  
Activated Carbon ◽  
Contact Pressure ◽  
Epoxy Composite ◽  
Palm Kernel ◽  
Tribological Characteristics ◽  
Dry Sliding ◽  
Sliding Speed ◽  
Speed Dependence

Statistical models for predicting wear and friction coefficient of palm kernel activated carbon-epoxy composite using the ANOVA

2017 ◽  
Vol 69 (5) ◽  
pp. 761-767 ◽  
Author(s):  
Noor Ayuma Mat Tahir ◽  
Mohd Fadzli Bin Abdollah ◽  
Rafidah Hasan ◽  
Hilmi Amiruddin ◽  
Muhammad Ilman Hakimi Chua Abdullah
Keyword(s):  
Activated Carbon ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Statistical Models ◽  
Epoxy Composite ◽  
Palm Kernel ◽  
Material Design ◽  
Content Type ◽  
Wear And Friction ◽  
Pin On Disc

Purpose The purpose of this study was to propose statistical models for predicting wear and friction coefficient of the palm kernel activated carbon-epoxy composite using the analysis of variance (ANOVA). Design/methodology/approach All the specimens were formed into 10-mm diameter pins of 30-mm length each. The tribological test was conducted using a pin-on-disc tribometer. The results of the coefficient of friction (COF) and the wear rate were then analysed using the ANOVA. Regression analysis was used to derive the predictive equations for both friction coefficient and wear rate. Findings It was found that the most significant parameter that affects the COF is the weight composition, while for the wear rate, it is the operating temperature. The proposed statistical models have 90-94 per cent reliability. Research limitations/implications The equation models are only limited within the tested parameters and ranges in the plastic deformation region. Originality/value These models can be very useful for material design engineers in avoiding the component failures occurring prematurely.

scholarly journals Effect of extreme cold temperatures on quasi-static indentation and impact behavior of woven carbon fiber epoxy composite sandwich panels with nomex honeycomb core

2021 ◽  
pp. 109963622199387
Author(s):  
Mathilde Jean-St-Laurent ◽  
Marie-Laure Dano ◽  
Marie-Josée Potvin
Keyword(s):  
Epoxy Composite ◽  
Impact Behavior ◽  
Effect Of Temperature ◽  
Cold Temperatures ◽  
Composite Sandwich Panels ◽  
Composite Sandwich ◽  
Static Indentation ◽  
Nomex Honeycomb ◽  
Extreme Cold ◽  
The Impact

The effect of extreme cold temperatures on the quasi-static indentation and the low velocity impact behavior of woven carbon/epoxy composite sandwich panels with Nomex honeycomb core was investigated. Impact tests were performed at room temperature, –70°C, and –150°C. Two sizes of hemispherical impactor were used combined to three different impactor masses. All the impact tests were performed at the same initial impact velocity. The effect of temperature on the impact behavior is investigated by studying the load history, load-displacement curves and transmitted energy as a function of time curves. Impact damage induced at various temperatures was studied using different non-destructive and destructive techniques. Globally, more damages are induced with impact temperature decreasing. The results also show that the effect of temperature on the impact behavior is function of the impactor size.

scholarly journals Epoxy\Epoxy Composite\Epoxy Hybrid Composite Coatings for Tribological Applications—A Review

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 179
Author(s):  
M. M. A. Baig ◽  
M. Abdul Samad
Keyword(s):  
Tribological Properties ◽  
Hybrid Composite ◽  
Review Paper ◽  
Epoxy Composite ◽  
Composite Coatings ◽  
Load Bearing Capacity ◽  
Corrosive Media ◽  
Fluid Handling ◽  
Low Load ◽  
Made In

Epoxy composite coating systems generally find their usage in applications such as, fluid handling systems to protect components from corrosive media. However, their use in demanding tribological applications such as, in sliding components of machines, are known to be limited. This is often attributed to their low load bearing capacity combined with poor thermal stability under severe p-v regimes. Researchers have tried to enhance the tribological properties of the epoxy coatings using a combination of several types of micro/nano sized fillers to produce composite or hybrid composite coatings. Hence, this review paper aims to focus on the recent advances made in developing the epoxy coating systems. Special attention would be paid to the types and properties of nano-fillers that have been commonly used to develop these coatings, different dispersion techniques adopted and the effects that each of these fillers (and their combinations) have on the tribological properties of these coatings.

Effect of temperature on composite films made with activated carbon, graphite, or graphene oxide (GO) in a gelatin matrix

BioResources ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 77-95
Author(s):  
Siqiao Yang ◽  
Haichao Li
Keyword(s):  
Contact Angle ◽  
Activated Carbon ◽  
Water Absorption ◽  
Composite Films ◽  
Effect Of Temperature ◽  
Gelatin Matrix ◽  
Vapour Permeability ◽  
Blending Method ◽  
The Matrix ◽  
Different Temperatures

Activated carbon, graphite, and GO/gelatin composite films were prepared by the blending method. The properties of composites were characterized by tensile strength (TS), elongation at break (EB), water vapour permeability (WVP), water-absorption ability, contact angle, scanning electron microscopy (SEM), and moisture at different temperatures. The properties of GO/gelatin composite films were better when each of three kinds of carbon materials were used as reinforcement phases and added into the matrix gelatin. The results showed that EB and TS of GO/gelatin composite films were both excellent. The moisture of GO/gelatin composite films was greater than the others. SEM micrographs showed that GO had better compatibility and dispersibility with gelatin than activated carbon and graphite. The water absorption of GO/gelatin composite films were low, at 15 °C and 25 °C, and the WVP was low at 35 °C. The WVP of GO/gelatin composite films was lower than the others at different temperatures. The contact angle of GO/gelatin composite films was larger than the others.

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