Monitoring of temperature profiles and surface morphologies during lasersintering of alumina ceramics
(English)In: Journal of Asian Ceramic Societies, ISSN 2187-0764Article in journal (Refereed) In press
Additive manufacturing of alumina by laser is a delicate process and small changes of processing parame-ters might cause less controlled and understood consequences. The real-time monitoring of temperatureprofiles, spectrum profiles and surface morphologies were evaluated in off-axial set-up for controllingthe laser sintering of alumina ceramics. The real-time spectrometer and pyrometer were used for rapidmonitoring of the thermal stability during the laser sintering process. An active illumination imagingsystem successfully recorded the high temperature melt pool and surrounding area simultaneously. Thecaptured images also showed how the defects form and progress during the laser sintering process. Allof these real-time monitoring methods have shown a great potential for on-line quality control duringlaser sintering of ceramics.
Monitoring, Laser sintering, Ceramics, Alumina
Research subject Inorganic Chemistry
IdentifiersURN: urn:nbn:se:su:diva-101053OAI: oai:DiVA.org:su-101053DiVA: diva2:698554