SIMS analysis of the near-surface layer of fibres of small diameter

Lancin, M.; Strat, E. Le; Fries, E.; Miloche, M.

doi:10.1016/s0168-1176(97)00002-5

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…The primary ion beams for the following applications include Cs + , 99 Ga + , 100,101 Ar + , 102 or ReO 4 -, 100 and the mass spectrometers include quadrupoles, TOF, 100,101 or an ion trap. 100 Goshnick et al used SIMS for depth profiling of laboratory generated salt samples that included chlorides, nitrates, sulfates, and carbonates, representing environmental materials.…”

Section: B Secondary Ion Mass Spectrometry (Sims)mentioning

confidence: 99%

“…105 Another surface fiber study, performed by Lancin et al, was accomplished illustrating the capability to apply depth profiling to the outermost layers of fibers. 99 Finally, Nihei et al introduced the gallium focused ion beam, Ga-FIB, which allows for better spatial resolution. 98 It has a beam diameter of less than 0.1 µm that is not only superior to other ion beams but also allows analysis of submicron particles.…”

Section: B Secondary Ion Mass Spectrometry (Sims)mentioning

confidence: 99%

“…The primary ion beams for the following applications include Cs + , Ga + , , Ar + , or ReO 4 - , and the mass spectrometers include quadrupoles, TOF, , or an ion trap …”

Section: Off-line Ms Of Aerosolsmentioning

confidence: 99%

“…Chrysotile asbestos fibers coated with titanium chloride were also examined . Another surface fiber study, performed by Lancin et al, was accomplished illustrating the capability to apply depth profiling to the outermost layers of fibers …”

Section: Off-line Ms Of Aerosolsmentioning

confidence: 99%

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Mass Spectrometry of Aerosols

1999

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Section: B Secondary Ion Mass Spectrometry (Sims)mentioning

confidence: 99%

Section: B Secondary Ion Mass Spectrometry (Sims)mentioning

confidence: 99%

“…The primary ion beams for the following applications include Cs + , Ga + , , Ar + , or ReO 4 - , and the mass spectrometers include quadrupoles, TOF, , or an ion trap …”

Section: Off-line Ms Of Aerosolsmentioning

confidence: 99%

Section: Off-line Ms Of Aerosolsmentioning

confidence: 99%

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Mass Spectrometry of Aerosols

1999

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“…The primary beam consisted of Cs + ions extracted under a voltage of 10 kV. The procedure adopted during the analyses has been described by Lancin et al (1997).…”

mentioning

confidence: 99%

SiC Nicalon fibre-glass matrix composites: interphases and their mechanism of formation

Strat¹,

Lancin²,

Fourches-Coulon³

et al. 1998

Philosophical Magazine A

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The ® bre± matrix reaction that occurs during the processing of a Nicalon SiC ® bre± Pyrex glass matrix composite is analysed. Interphases are characterized by means of various complementary techniques: electron di raction, HRTEM, EDX, EELS, SIMS and XPS. Neither the results of the present study nor those previously obtained for Nicalon SiC ® bre± LAS (Li 2 O± Al 2 O 3 ± SiO 2) glass or LAS + MAS (MgO± Al 2 O 3 ± SiO 2 ) glass± ceramic matrix composites support the available model of reaction. An alternative reaction mechanism is suggested whereby the dissolved and non-bridging oxygen atoms of the matrix di use and oxidize SiC and SiO x C y in the ® bre. The reaction yields carbon and silicon oxycarbide in the ® bre and SiO 2 which dissolves into the matrix. When the oxygen in excess in the matrix is consumed, the reaction stops and the phases undergo a reorganization in the reaction layer which generates two interphases, one carbon rich and the other silicon oxycarbide rich. These interphases are observed at the ® bre periphery in all glass or glass± ceramic matrix composites. § 1. Introduction Glass or glass± ceramic matrix composites are developed for thermostructural applications such as in aircraft parts submitted to severe thermomechanical stresses. Glass± ceramic is reinforced by means of long ® bres that are essentially stronger and less brittle than the matrix. This reinforcement yields composites with high strength and a`pseudoplastic' strain su cient to alleviate the catastrophic rupture mode of a brittle material. Amongst commercial ® bres, the SiC Nicalon 202 ® bre has been successfully used in the last years. The mechanical properties of Nicalon± glass matrix composites depend on the nature of the interphases that develop during material processing (Brennan 1988, Lancin 1991. A good characterization of the reaction between the ® bre and the matrix together with the understanding of this reaction are essential in order to elaborate composites with required speci® cations.Studies of the interphases produced in the course of the ® bre± matrix reaction have been conducted in a number of composites based on various matrices (Brennan 1988, Chen et al. 1989, Bonney and Cooper 1990. The most currently used are Li 2 O-Al 2 O 3 -SiO 2 (LAS) or CaO± Al 2 O 3 -SiO 2 (CAS) containing some additives such as niobium, arsenic or yttrium. In order to explain the formation of interphases, one usually refers to the model proposed by Cooper and Chyung (1987) which

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