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Improvement of Mechanical Properties on a Surface of Bulk Ceramics
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SYSNO ASEP 0332308 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Improvement of Mechanical Properties on a Surface of Bulk Ceramics Překlad názvu Zlepšení mechanických vlastností povrchu keramiky Tvůrce(i) Ctibor, Pavel (UFP-V) RID, ORCID
Kraus, L. (CZ)Zdroj.dok. Proceedings of the 22nd International Conference on Surface Modification Technologies, C120. - Trollhättan : University West, 2009 / Sudarshan T.S. ; Nylen P. - ISBN 978-0-9817065-1-1 Rozsah stran s. 247-254 Poč.str. 8 s. Akce International Conference on Surface Modification Technologies SMT22/22./ Datum konání 22.09.2008-24.09.2008 Místo konání Trollhättan Země SE - Švédsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. SE - Švédsko Klíč. slova Bulk ceramics ; plasma post-treatment ; diode laser ; wear resistance ; mechanical testing Vědní obor RIV JH - Keramika, žáruvzdorné materiály a skla CEP 1QS200430560 GA AV ČR - Akademie věd CEZ AV0Z20430508 - UFP-V (2005-2011) Anotace Ways to improve mechanical properties on a surface of bulk ceramics were presented. First of all, samples of bulk ceramics were superficially remelted by a diode laser Rofin DL 031Q. In the series of following experiments the authors achieved a similar kind of surface treatment with a plasma torch conventionally utilized for plasma spraying. Commercial bulk ceramic materials produced via sintering or casting were treated. The materials were members of ternary systems, such as, magnesia-alumina-silica and zirconia-alumina-silica. Before and after thermal treatment, the microstructure was studied and the microhardness was measured in surface layers and also deep inside the bulk body. Slurry abrasion resistance was determined as well. Microhardness and wear resistance is improved with Eucor and at certain degree also regarding cordierite. The microstructural character of a completely remelted external layer, partly influenced intermediate layers, and the original bulk body is discussed. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2010
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