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Fiber-optic LIBS for evaluation of surface hardness using ambient gas emission
https://repo.qst.go.jp/records/80550
https://repo.qst.go.jp/records/805500390e193-1980-438b-a812-e173c140257b
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-09-07 | |||||
| タイトル | ||||||
| タイトル | Fiber-optic LIBS for evaluation of surface hardness using ambient gas emission | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Nakanishi, Ryuzo
× Nakanishi, Ryuzo× Oba, Hironori× Nakanishi, Ryuzo× Oba, Hironori |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Laser induced breakdown spectroscopy (LIBS) offers a unique tool for in-situ and remote analysis of sample characteristics. Recently, LIBS has been used to evaluate the hardness of a material. This approach capitalizes on the findings that harder surface produce faster laser-induced plasma shockwave, eventually giving rise to higher density plasmas. This promotes excitation and ionization of neutral atoms. Thus, the ratio of the ionic to neutral emission intensity and the electron temperature from LIBS measurements allows us to evaluate the surface hardness. In the present study, we assess the potential use of emission lines from ambient gas instead of that from investigated elements to diagnose surface hardness using a portable fiber-optic LIBS device. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 11th International Conference on Laser-Induced Breakdown Spectroscopy (LIBS2020) | |||||
| 発表年月日 | ||||||
| 日付 | 2020-09-23 | |||||
| 日付タイプ | Issued | |||||
