Properties and application of ceramics in mechanical engineering

Tema ovog završnog rada je „Svojstva i primjena keramiĉkih materijala u strojarstvu“. Pod pojmom keramiĉki materijali, najviše se misli na tehniĉku keramiku koja je zaslužna za izradu dijelova u strojarstvu te u ostalim granama. Tehniĉka keramika obuhvaća sve keramiĉke proizvode i materijale za tehniĉku primjenu. U prvom dijelu rada opisano je što je keramika, podjela keramike te sama proizvodnja keramike. Proizvodnja keramike se obiĉno izvodi pomoću oblikovanja i sinteriranja. U sljedećoj cjelini opisana je struktura i svojstva keramike. Keramika ima dobra svojstva poput visoke tvrdoće, visoke ĉvrstoće, otpornosti na visoke temperature, dobre elektriĉne izolacije, otpornosti na koroziju i trošenje te male gustoće, dok su joj nedostaci mala žilavost, odnosno visoka krhkost, niska vlaĉna ĉvrstoća te visoki troškovi sirovina i postupka oblikovanja. Na kraju ovog rada je sama primjena keramiĉkih materijala u strojarstvu, ali i u nekim drugim granama.The topic of this paper is „Properties and application of ceramics in mechanical engineering“. Considering ceramic materials, most important part is tehnical ceramic that is responsible for the manfacture of parts in mechanical engineering and in other industrial branches. Technical ceramics includes all ceramic products and materials for technical purpose. In the first chapter, is described in general about the ceramics, their properties and divisions. Ceramics processing is commonly conducted using molding and sintering. Following chapter gives detailed description about structure and properties of ceramics. The most expressed ceramical properties are high hardness, high strenght, high temperature resistance, good electrical insulation, corrosion and wear resistance and low density, while its disadvantages are low toughness, high friability, low tensile strenght and high raw material costs shaping process. Next chapter gives description about the application of ceramic materials primarly in mechanical engineering and in some other branches