Visokotemperaturni premazi

master's thesis

• Title (english): High-temperature coatings
• Author: Andrea Kraljević
• Mentor: Ivan Stojanović (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-03-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

U ovom radu opisana je visokotemperaturna korozija te je dan uvid u zaštitu od korozije korištenjem visokotemperaturnih premaza te je opisano zaštitno djelovanje premaza te vrste veziva u premazu. Visokotemperaturni premazi imaju ključnu ulogu u zaštiti površina izloženih ekstremnim temperaturama, koroziji i drugim okolišnim utjecajima. Ovakvi premazi bi trebali izdržati dugotrajno izlaganje visokim radnim temperaturama bez pojave oštećenja, održavaju barijerni integritet kako bi se spriječio kontakt podloge s vlagom i ostalim korozivnim tvarima, sadrže postojane pigmente koji nisu osjetljivi na toplinu i prianjaju na podlogu bez ljuštenja. Visokotemperaturni premazi sastoje se od organskih ili anorganskih materijala, a obično su izrađeni od silikonskih smola i pigmenata koji ostaju stabilni čak i kod izlaganja ekstremnoj toplini. U eksperimentalnom dijelu rada ispitane su četiri vrste visokotemperaturnih premaza u slanoj i vlažnoj komori te su uzorci izloženi visokim temperaturama kako bi se vidjelo njihovo ponašanje pri visokim temperaturama. Također je provedeno mjerenje otpora premaza pomoću elektrokemijske impedancijske spektroskopije.

Abstract (english)

This paper describes high-temperature corrosion and provides insight into corrosion protection using high-temperature coatings. The protective action of coatings and the binding agent's role in the coating are explained. High-temperature coatings play a crucial role in safeguarding surfaces exposed to extreme temperatures, corrosion, and other
environmental influences. These coatings should withstand prolonged exposure to high operating temperatures without damage, maintain barrier integrity to prevent substrate contact with moisture and other corrosive substances, and contain stable pigments resistant to heat while adhering to the substrate without peeling. High-temperature coatings consist of organic or inorganic materials, typically made from silicone resins and heat-stable pigments. In the experimental part of the study, four types of high-temperature coatings were tested in a salt spray and humidity chamber, and samples were exposed to high temperatures to observe their behavior under these conditions. Additionally, the resistance of the coatings was measured using electrochemical impedance spectroscopy.

• Keywords: visokotemperaturna korozija; visokotemperaturni premazi; zaštita premazima
• Keywords (english): high-temperature corrosion; high-temperature coatings; coating protection
• Language: croatian
• URN:NBN: urn:nbn:hr:235:936090
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2026-03-28
• Created on: 2024-03-21 10:56:20