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Samenvatting Colleges Materiaalkunde jaar 2 MZK

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Samenvatting van de colleges van Materiaalkunde.

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Uploaded on
April 20, 2023
Number of pages
12
Written in
2022/2023
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Prekliniek Theorie
Materiaalkunde
HC1 PowerPoint




Materiaalkunde = relatie tussen bindingen, structuur en eigenschappen
- Primaire bindingen (materiaalklassen)
- Secundaire bindingen

Primaire bindingen
1. Covalente binding
Treedt op tussen ongeladen atomen. Bijv. tussen monomeren in polymeren/kunststoffen.’




2. Ion-binding
Treedt op tussen geladen ionen. Voorbeelden (bijv. keramische kroon):
- Glazuur (HA): Ca5(PO4)3OH
- Zirkonium oxide: ZrO2

, 3. Metaalbinding
Tussen metaalatomen (goud, kwik, titanium). Bijv. gouden kroon, amalgaam restauratie,
titanium implantaat.

Secundaire bindingen
=zwak, tussen moleculen.
- Van der Waals-bindingen
- Waterstofbruggen

Hechting tussen 2 vaste stoffen
- Gering aantal contactpunten
- Adhesie tussen vaste stoffen is verwaarloosbaar

Adhesieve verbinding tussen 2 vaste stoffen




Eisen voor hechting:
- Bevochtigbaarheid
= de mate waarin een vloeistof een substraat kan bedekken.
Hydrofobe materialen: kunstharsmatrix composiet.
Hydrofiele tanden: tandweefsels (glazuur, dentine) en vulmiddel composiet (silica)
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