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

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

doi:10.1361/105996398770350800

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
卷	7
發行號	3
DOIs	https://doi.org/10.1361/105996398770350800
出版狀態	已發佈 - 九月 1998
對外發佈	是

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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10.1361/105996398770350800

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title = "Characterization of Cracking within Thermal Spray Deposits by an Acoustic Emission Method-Extended Abstract",

abstract = "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.",

keywords = "Acoustic emission, Cracking mechanisms, Cracking of composites, Thermal spray",

author = "Berndt, {C. C.} and Lin, {C. K.} and Leigh, {S. H.}",

note = "Funding Information: This research program has been supported by the National Science Foundation under the MRSEC-NSF-DMR 9632570.",

year = "1998",

month = sep,

doi = "10.1361/105996398770350800",

language = "English",

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AU - Berndt, C. C.

AU - Lin, C. K.

AU - Leigh, S. H.

N1 - Funding Information: This research program has been supported by the National Science Foundation under the MRSEC-NSF-DMR 9632570.

PY - 1998/9

Y1 - 1998/9

N2 - 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.

AB - 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.

KW - Acoustic emission

KW - Cracking mechanisms

KW - Cracking of composites

KW - Thermal spray

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

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