Mechanical Properties and Wear Behavior of Brake Pads Produced from Palm Slag

2011 ◽  
Vol 341-342 ◽  
pp. 26-30 ◽  
Author(s):  
Che Mohd Ruzaidi Ghazali ◽  
H. Kamarudin ◽  
J. B. Shamsul ◽  
M. M. A. Abdullah ◽  
A.R. Rafiza
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Wear Behavior ◽  
Compression Molding ◽  
Brake Pad ◽  
Compression Pressure ◽  
Safety Devices ◽  
Brake Pads ◽  
Inorganic Fillers

Brake pads are important safety devices in vehicles. An effort to avoid the use of asbestos in brake pads has led to the development of asbestos-free brake pads that incorporate various organic and inorganic fillers. Palm slag as a filler in brake pads was investigated in this paper. Different processing pressures were employed during production of samples through compression molding. The properties examined included hardness, compressive strength, and wear behavior. The results showed that brake pad samples prepared with 60 tons of compression pressure resulted in the most desirable properties. Hence, palm slag has its own potential for use as a filler in asbestos-free brake pads.

Comparative Study on Thermal, Compressive, and Wear Properties of Palm Slag Brake Pad Composite with other Fillers

2011 ◽  
Vol 328-330 ◽  
pp. 1636-1641 ◽  
Author(s):  
Che Mohd Ruzaidi Ghazali ◽  
H. Kamarudin ◽  
Shamsul Baharin Jamaludin ◽  
M. M. A. Abdullah
Keyword(s):  
Compressive Strength ◽  
Thermal Properties ◽  
Calcium Carbonate ◽  
Comparative Study ◽  
Wear Behavior ◽  
Waste Materials ◽  
Cost Ratio ◽  
Brake Pad ◽  
Wear Properties ◽  
Brake Pads

The attractive performance-to-cost ratio associated with the incorporation of waste material in composite formulations used to produce brake pads has stimulated the idea of exploring the possible incorporation of additional waste materials in such formulations. Thus, the viability of adding palm slag to the composite formulation used in brake pads was investigated, and the results are reported in this paper. In addition, other fillers, such as calcium carbonate and dolomite, were used for comparative purposes. The properties examined included thermal properties, compressive strength, and wear behavior. The results showed that palm slag has significant potential for use as an alternative to the existing fillers in the composite formulations used to produce brake pads.

Manufacturing Brake Pads by Using Hot Powder Preform Forging for Low Duty Applications

2011 ◽  
Vol 299-300 ◽  
pp. 820-823
Author(s):  
A.A.S. Ghazi ◽  
K. Chandra ◽  
P.S. Misra
Keyword(s):  
Mechanical Properties ◽  
Conventional Technique ◽  
High Density ◽  
Brake Pad ◽  
Friction Materials ◽  
Recovery Test ◽  
Brake Pads ◽  
Powder Preform ◽  
Fade And Recovery ◽  
Materials Used

To develop a high density brake pad for low duty application, a P/M route based on ‘Hot Powder Preform Forging’ was developed, which is not possible by sintering route. The mechanical properties of these materials were characterized using ASTM standards. The limitations of the conventional technique i.e. Compacting and Sintering for the manufacture of brake pads were tried to remove by adopting this technology. It offers better opportunity for pore free materials with better bonding between metallic and non-metallic constituents. Fade and Recovery test were done by using a Krauss Tester. μfade, μrecoveryand μperformancelie within the range of friction materials used for low duty applications.

scholarly journals Development of Asbestos-free Brake Pads Using Bamboo Leaves

2019 ◽  
Vol 3 (2) ◽  
pp. 342-351
Author(s):  
N. O. Adekunle ◽  
K. A. Oladejo ◽  
S. I. Kuye ◽  
A. D. Aikulola
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Wear Rate ◽  
Close Agreement ◽  
Brake Pad ◽  
Flame Resistance ◽  
Brake Pads ◽  
Bamboo Leaves ◽  
Steel Dust ◽  
Automotive Brake

Asbestos-based brake pads are not desirable due to the carcinogenic nature of asbestos. Organic asbestos-free brake automotive brake pad produced from bamboo leaves was evaluated in this study. Ground bamboo leaves were sieved into sieve grades of 100, 200, and 350 μm. The sieved bamboo leaves particles were then combined with 15 % steel dust, 10% graphite, 20% resin, Silicon Carbide varied five (5) times between 35-55 % and 0-20% respectively for each sieve grade to make brake pads of different ratios. The mechanical properties (hardness, compressive strength, density, porosity, wear rate, and flame resistance) of the produced samples were investigated. The results showed that the finer the particle size of the bamboo leaves, the better the mechanical properties of the produced samples. The results of this work when compared with those of the commercial (asbestos based) brake pad showed they were in close agreement except for the wear rate and porosity property. Therefore, bamboo leaves could be used in the production of asbestos free brake pads if the wear rate and porosity properties of the produced samples could be improved.

scholarly journals Effect of Electroless Coatings on the Mechanical Properties and Wear Behavior of Oriented Multiwall Carbon Nanotube-Reinforced Copper Matrix Composites

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2982
Author(s):  
Zhong Zheng ◽  
Jishi Liu ◽  
Jiafeng Tao ◽  
Jing Li ◽  
Wenqian Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Tribological Properties ◽  
Wear Behavior ◽  
Copper Matrix ◽  
Matrix Composites ◽  
Copper Matrix Composites ◽  
Electroless Coatings ◽  
Pure Cu

The effects of electroless coatings on the microstructure and composition of the interface between multi-walled carbon nanotubes (MWCNTs) and a Cu matrix and the mechanical properties and wear behavior of the resulting copper matrix composites were investigated. Ni and Cu coatings were electrolessly plated on MWCNTs and mixed subsequently with copper powder. Then copper matrix composites were prepared by sintering, hot extrusion and cold drawing processes. The results showed that MWCNTs were straight, long, uniformly dispersed and aligned in the composites. The Ni coating is more continuous, dense and complete than a Cu coating. The tensile strength, compressive strength, microhardness and tribological properties of Ni@MWCNTs/Cu composite along the drawing direction were enhanced most. The ultimate tensile strength and compressive strength were 381 MPa and 463 MPa, respectively. The friction coefficient and wear rate were reduced by 59% and 77%, respectively, compared with pure Cu samples. This study provides a new insight into the regulation of tribological properties of composites by their interface.

scholarly journals Effect of grain size on the physicomechanical properties

2020 ◽  
Vol 44 (4) ◽  
pp. 135-144
Author(s):  
C. V. Ossia ◽  
A. Big-Alabo ◽  
E. O. Ekpruke
Keyword(s):  
Thermal Conductivity ◽  
Grain Size ◽  
Compressive Strength ◽  
Cocos Nucifera ◽  
Control Sample ◽  
Physicomechanical Properties ◽  
Interfacial Bonding ◽  
Brake Pad ◽  
Absorption Properties ◽  
Brake Pads

AbstractIn this study, locally available waste coconut (Cocos nucifera) shells (CSs) were investigated as possible replacement for asbestos-based brake pads. The CS-based brake pad was tested for its physicomechanical properties and compared with a commercial brake pad used as control sample. The results showed that (a) an improved interfacial bonding between the CS particles and the binder as the grain size decreases; (b) the 90 μm grain size sample had better physicomechanical properties than the control sample in all tests except the thermal conductivity and stability tests; and (c) the hardness, compressive strength, and density of the CS-based brake pad decreased with increasing grain size, whereas the absorption properties increased with increasing grain size. The study showed that further reduction of the grain size below 90 μm and matrix impregnation with metals of good thermal conductivity could provide significant improvements to properties of the CS-based brake pad.

scholarly journals Low friction hybrid nanocomposite material for brake pad application

2017 ◽  
Author(s):  
◽  
Oluwatoyin Joseph Gbadeyan
Keyword(s):  
Thermal Stability ◽  
Compressive Strength ◽  
Shear Strength ◽  
Superior Performance ◽  
Oil Absorption ◽  
Hybrid Nanocomposite ◽  
Brake Pad ◽  
Brake Pads ◽  
Uniform Dispersion ◽  
Interfacial Temperature

Despite the huge improvements made in the development of vehicle brake pad materials, problems such long stopping distances, noise pollution, and heat dissipation still continue to persist. In this regard, a novel polymer-based hybrid nanocomposite brake pad (HC) has been developed. Here, a combination of carbon-based materials, including those at a nanoscale, was used to produce the brake pad. The coefficient of friction, wear rate, noise level, and interfacial temperature was investigated and compared with that of a commercial brake pad material (CR). It was found that the brake pad performance varied with the formulation of each pad. Hybrid nanocomposite brake pads material exhibited superior performance in most tests when compared to the commercial brake pad. They exhibited a 65% lower wear rate, 55% lower noise level, 90% shorter stopping distance, and 71 % lower interfacial temperature than the commercial brake pad (CR). Furthermore, mechanical properties such as hardness, compressive strength, shear strength, and impact resistance were also evaluated. The material exhibited a 376% higher shear strength, 100% improved compressive strength, 77% greater modulus and 100% higher impact strength than the commercial brake pad. The hardness of both brake pads material was statistically comparable. Additionally, the thermal stability, degradation, water and oil absorption behaviour were measured. It was found that HC brake pad material exhibited a 100% lower water absorption and 80% oil absorption rate. The brake pads also exhibited a thermal stability within the brake pad standard maximum working temperature of 300 -400 0C. The superior performance of hybrid nanocomposite brake pad material observed was due to synergism between the carbon-carbon additives and uniform dispersion of carbon fiber as shown in Figure 4.16. Scanning electron microscopy study was subsequently performed on fracture and worn surfaces of the brake pads. The micrographs show changes in the structural formation after the incorporation of carbon based fillers. It also shows the smooth structure and uniform dispersion of the carbon fiber. The smooth surface of the worn brake pad is an indicative of a harder structure. No ploughing or score marks were evident. Hence, it was deduced that the reinforced had superior mechanical and tribological properties. These improved properties are suggestive of materials that may be successfully used for brake pad application.

Wear behavior of rice straw powder in automotive brake pads

2021 ◽  
Vol 63 (5) ◽  
pp. 458-461
Author(s):  
İbrahim Mutlu ◽  
Ahmet Keskin
Keyword(s):  
Rice Straw ◽  
Wear Behavior ◽  
Friction Material ◽  
Silica Content ◽  
Brake Pad ◽  
Brake Pads ◽  
The Matrix ◽  
Novel Material ◽  
Detrimental Impact ◽  
Automotive Brake

Abstract This paper investigates the use of rice straw powder in a brake pad as a substitute for asbestos which is a carcinogenic with detrimental effects on health. Rice straw powder was used as a novel material in a brake pad. Rice straw powder has a silica content which gives the pad a c eramic-like action. Rice straws were ground after drying in order to produce the powder. Five laboratory varieties were produced, altering the rice straw powder ingredients from 5, 10, 15, 20 and 25 wt.-%, respectively added to other abrasive materials, binder, friction modifiers, solid lubricant, and filler material utilizing conventional techniques. In this study, the friction surface temperature, the wear amount, and the change of the friction coefficient were determined. Additionally, the microstructure specifications of the brake pads were determined using scanning electron microscopy. Experimental results showed that a 15 wt.-% fraction of rice straw powder yielded better wear and thermo-mechanical features as compared with other combinations. The micro-structure shows a uniform distribution of the rice straw powder in the matrix. Hence, rice straw powder can be a possible candidate friction material for producing non-asbestos new brake pad without any detrimental impact.

Mechanical Properties and Morphology of Palm Slag, Calcium Carbonate and Dolomite Filler in Brake Pad Composites

2013 ◽  
Vol 313-314 ◽  
pp. 174-178 ◽  
Author(s):  
Che Mohd Ruzaidi Ghazali ◽  
H. Kamarudin ◽  
Shamsul Baharin Jamaludin ◽  
A.M. Mustafa Al Bakri ◽  
J. Liyana
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Calcium Carbonate ◽  
Wear Rate ◽  
Brake Pad ◽  
Metal Fiber ◽  
Significant Potential ◽  
Sem Micrograph ◽  
Rate Behavior ◽  
Binder Metal

The development of asbestos free brake pad composites using different fillers was investigated with a intention to substitute asbestos which is known hazardous and carcinogenic. Mechanical and morphology studies were made to clarify the mechanism for compressive strength, hardness and wear rate behavior of different filler of brake pad which were prepared by compression molding of mixture of filler (palm slag, calcium carbonate and dolomite) with phenolic as binder, metal fiber as reinforcement, graphite as lubricant and alumina as abrasive. The result showed that palm slag has significant potential to use as filler material in brake pad composite. The wear rate of palm slag composite was comparable with the conventional asbestos based brake pad. The result also supported by SEM micrograph.

Effect of combined drink cans and steel fibers on the impact resistance and mechanical properties of concrete

2020 ◽  
Vol 14 (2) ◽  
pp. 6734-6742
Author(s):  
A. Syamsir ◽  
S. M. Mubin ◽  
N. M. Nor ◽  
V. Anggraini ◽  
S. Nagappan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
Impact Resistance ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Fiber Reinforced ◽  
Indirect Tensile ◽  
The Impact

This study investigated the combine effect of 0.2 % drink cans and steel fibers with volume fractions of 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3% to the mechanical properties and impact resistance of concrete. Hooked-end steel fiber with 30 mm and 0.75 mm length and diameter, respectively was selected for this study.  The drinks cans fiber were twisted manually in order to increase friction between fiber and concrete. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the strength performance of concrete, especially the compressive strength, flexural strength and indirect tensile strength. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the compressive strength, flexural strength and indirect tensile strength by 2.3, 7, and 2 times as compare to batch 1, respectively. Moreover, the impact resistance of fiber reinforced concrete has increase by 7 times as compared to non-fiber concretes. Moreover, the impact resistance of fiber reinforced concrete consistently gave better results as compared to non-fiber concretes. The fiber reinforced concrete turned more ductile as the dosage of fibers was increased and ductility started to decrease slightly after optimum fiber dosage was reached. It was found that concrete with combination of 2% steel and 0.2% drink cans fibers showed the highest compressive, split tensile, flexural as well as impact strength.    

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