Investigation of the Effect of Surface Roughness on Friction Performance of Brake Pad

BANU SUGÖZÜ | İLKER SUGÖZÜ

Vehicle brake pads are produced by combining more than one material. Having different properties of the material forming the brake pad composition is affect to the friction performance of the vehicle. During braking, high temperatures occur in the vehicle brake pads. Depending on the temperature change, the friction coefficient and wear resistance of the brake pad are desired to be high. In this study, the effect of brake pad surface roughness on friction performance was investigated. The friction coefficient and wear tests of the brake pads with different surface roughness values were examine ...Daha fazlası

OTOMOTİV FREN BALATA MALZEMELERİNDE MAUN CEVİZİ TOZUNUN SÜRTÜNME PERFORMANSINA ETKİSİ

BANU SUGÖZÜ

Bu çalışmada, maun cevizi tozunun fren sürtünme malzemelerinin sürtünme özellikleri üzerindeki etkisi araştırılmıştır. Bir deneysel formülasyonla %5, %10 ve %15 Maun cevizi tozu içerikli 3 farklı sürtünme malzemesi üretilmiştir. Bir fren dinamometresi kullanılarak sürtünme malzemelerinin tribolojik özellikleri elde edilmiştir. %5 ve %10 Maun cevizi tozu içerikli sürtünme malzemeleri sürtünme ve kayma direncinde iyileşmeler göstermiştir.

Investigation of The Effect of Solid Lubricant Particle Sizes on Friction and Wear Properties in Friction Composites: An Experimental Case Study with Graphite

İLKER SUGÖZÜ | BANU SUGÖZÜ

Friction composites consist of many materials with various properties. Solid lubricant is one of these materials. The task of the solid lubricant in the compo-site is to protect the counter surfaces against wear and to reduce noise and vibra-tion. Typical solid lubricants used in the friction composite are graphite, antimo-ny trisulfide, molybdenum disulfide, copper sulfide, etc. The selection suitable solid lubricants for better braking performance is an important issue, as solid lubricants may decompose at high temperatures, leading to undesirable results. The particle size of the solid lubr ...Daha fazlası

ORTAK SAĞLIK VE GÜVENLİK BİRİMİNDE ÇALIŞAN İŞ GÜVENLİĞİ UZMANLARININ İŞ HAYATINDA YAŞADIĞI STRES VE ETKİLERİ

İLKER SUGÖZÜ | BANU SUGÖZÜ

INVESTIGATION OF THE EFFECT OF SURFACE ROUGHNESS ON FRICTION PERFORMANCE OF BRAKE PAD

BANU SUGÖZÜ | İLKER SUGÖZÜ

Effect of micro and nano-sized ZrSiO4 particles on the friction and wear properties of polymer matrix composites

BANU SUGÖZÜ | İLKER SUGÖZÜ

In this study, the size effect of zircon (ZrSiO4) on the tribological characteristics of polymer matrix friction composites were investigated. Hence, four friction composites containing micro and nano-sized zircon particles (5 and 10 wt%) were developed and produced using powder metallurgy method. Their wear and friction characteristics were examined using a friction-wear test device. The weight loss and specific wear rate were measured and compared with that obtained for microsized zircon particles. The surfaces of samples were analyzed using a scanning electron microscope, and less wear was ...Daha fazlası

Influence of Diesel Fuel and Soybean Oil Ethyl Ester Blends on the Performance and Emission Characteristics of a Diesel Engine

BANU SUGÖZÜ

In this study, blends of soybean oil ethyl ester and diesel fuel are tested as alternative fuel in a single cylinder, air cooled pre-combustion chamber diesel engine at different speeds and their effects on engine performance and emissions are analyzed. It is observed that the average moment obtained by 5% soybean oil ethyl ester and diesel fuel blend (SOE5) is 0.53% lower, the level of power obtained is 1.8% lower; however, specific fuel consumption is approximately 4.31% higher than those of diesel fuel. In the experiments conducted with 20% soybean oil ethyl ester and diesel fuel blend (SOE ...Daha fazlası

Production of boric acid added brake friction composite and the effect of heat treatment on braking characterization

İLKER SUGÖZÜ | BANU SUGÖZÜ

Purpose The purpose of this study was to investigate the use of boric acid as a friction modifier material in brake friction composites and to determine the effect of heat treatment applied during production on braking performance. Design/methodology/approach The addition of five different amounts of boric acid was balanced with cashew, which is in the friction modifier material group. The samples were produced in the following order: dry mixing, preforming and hot-pressing. The effect of the heat treatment that can be applied after the hot-pressing process on the braking performance was inves ...Daha fazlası

Friction and Wear Properties of Automobile Brake Linings Containing Borax Powder with Different Grain Sizes

İLKER SUGÖZÜ | BANU SUGÖZÜ

Borax which is an important boron compound, a mineral, and a salt of boric acid, is used as a fire retardant and insulating material. The most important reac-tion in automobile brake systems is heat generation from friction. The heat gen-erated at the interface of disc and lining may cause deformation of the materials forming the lining. Therefore, phenomena such as lining wear and brake fade may be occurred. The aim of this study is to reveal the positive effects of borax additive on lining and experimentally examine the effect of grain size of borax on tribological properties. Lining is prod ...Daha fazlası

Effect of the size on the friction characteristics of brake friction materials: a case study with Al2O3

BANU SUGÖZÜ

Purpose The purpose of this paper is to study the potential of alumina (Al2O3) in nanometer size in automotive brake friction materials. Design/methodology/approach Four brake linings containing alumina differing in particle size (355 µm and 80 nm) and various amount (5 and 10 Wt.%) were designed and produced. The hardness, density and porosity of the samples were measured. All samples were tested on a full-scale brake dynamometer with gray cast iron disc to determine the tribological properties. Detailed examinations on the worn surface were analyzed using a scanning electron microscopy. Find ...Daha fazlası

Modeling and Predicting of Tribological Behaviour of the Automotive Brake Pad Using Response Surface Methodology

BANU SUGÖZÜ

In the present study, wear and frictional behaviours of automotive brake pad sliding against GG 20 cast iron counter face have been investigated experimentally using a pin on disc type friction tester. Wear tests were carried out under dry conditions. A central composite design was used to describe response and to estimate the process parameters in the model. Empirical models have been developed to predict wear loss and friction coefficient as a function of contact pressure and sliding velocity using multiple regression. The statistical analysis show that the contact pressure is identified as ...Daha fazlası

INVESTIGATION OF THE USE OF FE-AL ALLOY IN REPLACE OF COPPER IN AUTOMOTIVE BRAKE PADS

BANU SUGÖZÜ