The Role of Graphitic Carbon Nitride in the Formulation of Copper-Free Friction Composites Designed for Automotive Brake Pads

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F22%3A10249049" target="_blank" >RIV/61989100:27360/22:10249049 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/22:10249049

Výsledek na webu

<a href="https://www.mdpi.com/2075-4701/12/1/123" target="_blank" >https://www.mdpi.com/2075-4701/12/1/123</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/met12010123" target="_blank" >10.3390/met12010123</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Role of Graphitic Carbon Nitride in the Formulation of Copper-Free Friction Composites Designed for Automotive Brake Pads

Popis výsledku v původním jazyce

In this study, graphitic carbon nitride (g-C3N4, labelled as gCN) was tested in the formulation of copper-free (Cu-free) friction mixtures, which are potentially interesting for brake pad manufacturing. Three formulations of friction composites were prepared starting from a common Cu-free master batch: (i) without graphite, (ii) with graphite and (iii) with gCN. The mixtures were pressed in the form of pins by hot-press moulding. The friction-wear performance of the prepared pins was investigated using a pin-on-disc (PoD) test at room temperature (RT), high temperature (HT) (400 degrees C) and, again, at room temperature (H-RT). The values of the friction coefficient (mu) for the composites with gCN (or graphite) were as follows: (i) RT test, mu(RT) = 0.52 (0.47); (ii) HT test, mu(HT) = 0.37 (0.37); (iii) RT after the HT tests, mu(H-RT) = 0.49 (0.39). With respect to wear resistance, the samples with graphite performed better than the samples without this solid lubricant. To the best of our knowledge, this is the first report regarding the evaluation of the role of gCN in friction composites designed for automotive brake lining applications. The results indicate the main role of gCN as a soft abrasive.

Název v anglickém jazyce

The Role of Graphitic Carbon Nitride in the Formulation of Copper-Free Friction Composites Designed for Automotive Brake Pads

Popis výsledku anglicky

In this study, graphitic carbon nitride (g-C3N4, labelled as gCN) was tested in the formulation of copper-free (Cu-free) friction mixtures, which are potentially interesting for brake pad manufacturing. Three formulations of friction composites were prepared starting from a common Cu-free master batch: (i) without graphite, (ii) with graphite and (iii) with gCN. The mixtures were pressed in the form of pins by hot-press moulding. The friction-wear performance of the prepared pins was investigated using a pin-on-disc (PoD) test at room temperature (RT), high temperature (HT) (400 degrees C) and, again, at room temperature (H-RT). The values of the friction coefficient (mu) for the composites with gCN (or graphite) were as follows: (i) RT test, mu(RT) = 0.52 (0.47); (ii) HT test, mu(HT) = 0.37 (0.37); (iii) RT after the HT tests, mu(H-RT) = 0.49 (0.39). With respect to wear resistance, the samples with graphite performed better than the samples without this solid lubricant. To the best of our knowledge, this is the first report regarding the evaluation of the role of gCN in friction composites designed for automotive brake lining applications. The results indicate the main role of gCN as a soft abrasive.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Metals

ISSN

2075-4701

e-ISSN

2075-4701

Svazek periodika

12

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

nestrankovano

Kód UT WoS článku

000747267900001

EID výsledku v databázi Scopus

2-s2.0-85122378704