Characterization of Cracking within Thermal Spray Deposits by an Acoustic Emission Method-Extended Abstract

C. C. Berndt, C. K. Lin, S. H. Leigh

研究成果: 雜誌貢獻文章同行評審

3 引文 斯高帕斯(Scopus)

摘要

Four-point bend tests with in situ acoustic emission (AE) were used to study the cracking behavior of alumina-3 % titania materials prepared by gas- and water-stabilized plasma technologies (GSP and WSP, respectively). Catastrophic failure was observed for GSP-sprayed samples while WSP-sprayed samples exhibited microcracking before failure. The amplitude and energy distributions were also investigated, and it was determined that the percentage of macrocracks for GSP-sprayed samples is much larger than for WSP-sprayed samples. The processing effects, which induced differences in microstructure, may account for the differences in AE responses.
原文英語
頁(從 - 到)334-336
頁數3
期刊Journal of Thermal Spray Technology
7
發行號3
DOIs
出版狀態已發佈 - 九月 1998
對外發佈

ASJC Scopus subject areas

  • 凝聚態物理學
  • 表面、塗料和薄膜
  • 材料化學

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