Optical Emission Spectroscopy during Plasmatron Testing of ZrB₂-SiC Ultrahigh-temperature Ceramic Composites

Mickaël Playez; Douglas G. Fletcher; Jochen Marschall; Greg Hilmas; Sumin Zhu; William Fahrenholtz

doi:10.2514/1.39974

Optical Emission Spectroscopy during Plasmatron Testing of ZrB₂-SiC Ultrahigh-temperature Ceramic Composites

Mickaël Playez
, Douglas G. Fletcher
, Jochen Marschall
, Greg Hilmas
, Sumin Zhu
, William Fahrenholtz

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Optical emission spectroscopy is used to investigate the oxidation of a hot-pressed ZrB2-SiC ultrahightemperature ceramic composite tested in the 1.2 MW Plasmatron facility at the von Kármán Institute for Fluid Dynamics. Time-resolved spectra enable the in situ detection and temporal characterization of electronically excited B, BO, andBO2 species concentrations directly adjacent to the oxidizing sample surface. The evolution of these boron species correlates well with the transient formation of a complex multilayer oxide scale containing a silica-rich glassy outer layer that limits oxide growth.

Original language	American English
Journal	Journal of Thermophysics and Heat Transfer
DOIs	https://doi.org/10.2514/1.39974
State	Published - Apr 1 2009

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Materials Science and Engineering

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https://doi.org/10.2514/1.39974

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title = "Optical Emission Spectroscopy during Plasmatron Testing of ZrB₂-SiC Ultrahigh-temperature Ceramic Composites",

abstract = " Optical emission spectroscopy is used to investigate the oxidation of a hot-pressed ZrB2-SiC ultrahightemperature ceramic composite tested in the 1.2 MW Plasmatron facility at the von K{\'a}rm{\'a}n Institute for Fluid Dynamics. Time-resolved spectra enable the in situ detection and temporal characterization of electronically excited B, BO, andBO2 species concentrations directly adjacent to the oxidizing sample surface. The evolution of these boron species correlates well with the transient formation of a complex multilayer oxide scale containing a silica-rich glassy outer layer that limits oxide growth.",

author = "Micka{\"e}l Playez and Fletcher, \{Douglas G.\} and Jochen Marschall and Greg Hilmas and Sumin Zhu and William Fahrenholtz",

year = "2009",

month = apr,

day = "1",

doi = "10.2514/1.39974",

language = "American English",

journal = "Journal of Thermophysics and Heat Transfer",

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TY - JOUR

T1 - Optical Emission Spectroscopy during Plasmatron Testing of ZrB₂-SiC Ultrahigh-temperature Ceramic Composites

AU - Playez, Mickaël

AU - Fletcher, Douglas G.

AU - Marschall, Jochen

AU - Hilmas, Greg

AU - Zhu, Sumin

AU - Fahrenholtz, William

PY - 2009/4/1

Y1 - 2009/4/1

N2 - Optical emission spectroscopy is used to investigate the oxidation of a hot-pressed ZrB2-SiC ultrahightemperature ceramic composite tested in the 1.2 MW Plasmatron facility at the von Kármán Institute for Fluid Dynamics. Time-resolved spectra enable the in situ detection and temporal characterization of electronically excited B, BO, andBO2 species concentrations directly adjacent to the oxidizing sample surface. The evolution of these boron species correlates well with the transient formation of a complex multilayer oxide scale containing a silica-rich glassy outer layer that limits oxide growth.

AB - Optical emission spectroscopy is used to investigate the oxidation of a hot-pressed ZrB2-SiC ultrahightemperature ceramic composite tested in the 1.2 MW Plasmatron facility at the von Kármán Institute for Fluid Dynamics. Time-resolved spectra enable the in situ detection and temporal characterization of electronically excited B, BO, andBO2 species concentrations directly adjacent to the oxidizing sample surface. The evolution of these boron species correlates well with the transient formation of a complex multilayer oxide scale containing a silica-rich glassy outer layer that limits oxide growth.

UR - https://scholarsmine.mst.edu/matsci_eng_facwork/120

UR - https://doi.org/10.2514/1.39974

U2 - 10.2514/1.39974

DO - 10.2514/1.39974

M3 - Article

JO - Journal of Thermophysics and Heat Transfer

JF - Journal of Thermophysics and Heat Transfer

ER -

Optical Emission Spectroscopy during Plasmatron Testing of ZrB₂-SiC Ultrahigh-temperature Ceramic Composites

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