The evalution of properties of ceramic blends for braking systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10238311" target="_blank" >RIV/61989100:27360/17:10238311 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The evalution of properties of ceramic blends for braking systems
Original language description
The construction and used frictional materials are important factors for proper function of brake system. These factors have to absorb significant part of vehicle kinetic and thermal energy during deceleration or stopping. Friction materials in brake systems are very heterogeneous composite composed of up to 20 components. Nowadays, friction materials are divided into three main groups – metallic, carbonic and based on organic resins. Master´s thesis is focused on ceramic brake pads based on organic resins (NAO mix), whose friction components are divided into four main groups – pastes, reinforcing materials, friction modifiers and fillers. All components in the brake pad are bonded by the phenol-formaldehyde resin. Brake pads mixtures are very sensitive to moisture, especially ceramic NAO mix (non-asbestos organics) contains the biggest amount of organic components. In the first stage raw resin was analyzed (fresh and hydrated) by IR-oven, flow index test and simultaneous thermic analysis. In the second stage, the simulation of production and brake pads testing was performed. Chemical composition was determined by X-ray fluorescence spectrometer. Then, compressibility of brake pads was measured (under cold and hot). The measurements identify resin as critical and key material. This fact was proven by dependence between its sensibility character to humidity on increasing compressibility. The main aim of master´s thesis was to eliminate of issues during NAO brake pads production, to find root cause, and finally to described the consequences of high compressibility in real process.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Den doktorandů 2017 : sborník příspěvků : 14. prosince 2017, Ostrava, Česko
ISBN
978-80-248-4126-7
ISSN
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e-ISSN
neuvedeno
Number of pages
4
Pages from-to
17-20
Publisher name
Vysoká škola báňská-Technická univerzita Ostrava
Place of publication
Ostrava
Event location
Ostrava
Event date
Dec 14, 2017
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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