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Laser-assisted microwave plasma processing of ceramic coatings

Title data

Willert-Porada, Monika ; Pontiller-Schymura, Peter ; Park, Ho-Seon ; Rosin, Andreas:
Laser-assisted microwave plasma processing of ceramic coatings.
In: Journal of Ceramic Science and Technology. Vol. 4 (April 2013) Issue 1 . - pp. 1-10.
ISSN 2190-9385
DOI: https://doi.org/10.4416/JCST2013-00003

Abstract in another language

The aim of Laser-Assisted Microwave Plasma Processing of materials, abbreviated as LAMPP, is to utilize a spatially well-confined laser beam to ignite and localize a microwave plasma plume as an energy source for the sintering, melting or recrystallization of ceramic coatings. The energy required for the high-temperature treatment is supplied to a significant extent from the microwave source that feeds the plasma while the laser beam is used to scan the microwave plasma over the surface area to be treated. The phenomena underlying ignition and sustainment of the plasma are described in respect of the two possible ignition mechanisms: Laser-Induced Breakdown, LIB, or Microwave-Induced Breakdown, MIB. The influence of the material to be processed on prevalence of one of these ignition mechanisms is discussed. Examples of equipment built in our laboratory to enable LAMPP in different atmospheres for different substrates and coatings are shown. As potential applications of LAMPP, re-melting of ceramic plasma-sprayed thermal barrier coatings and melting of non-stabilized ZrO2 ceramic for coating purposes are presented.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Microwave plasma; ceramic melt processing; LIB; MIB
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Ehemalige Professoren > Chair Materials Processing - Univ.-Prof. Dr. Monika Willert-Porada
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Faculties
Faculties > Faculty of Engineering Science > Chair Materials Processing
Research Institutions
Research Institutions > Research Units
Faculties > Faculty of Engineering Science > Ehemalige Professoren
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 04 May 2015 13:24
Last Modified: 06 Jul 2016 07:15
URI: https://eref.uni-bayreuth.de/id/eprint/11502