Qualitative analysis of hafnium diboride based ultra high temperature ceramics under oxyacetylene torch testing at temperatures above 2100°C

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Qualitative analysis of hafnium diboride based ultra high temperature ceramics under oxyacetylene torch testing at temperatures above 2100°C. / Carney, Carmen; Paul, Anish; Venugopal, Saranya; Parthasarathy, Triplicane; Katz, Allan; Binner, Jonathan; Brown, Peter.

In: Journal of the European Ceramic Society, Vol. 34, No. 5, 01.05.2014, p. 1045-1051.

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Carney, Carmen ; Paul, Anish ; Venugopal, Saranya ; Parthasarathy, Triplicane ; Katz, Allan ; Binner, Jonathan ; Brown, Peter. / Qualitative analysis of hafnium diboride based ultra high temperature ceramics under oxyacetylene torch testing at temperatures above 2100°C. In: Journal of the European Ceramic Society. 2014 ; Vol. 34, No. 5. pp. 1045-1051.

Bibtex

@article{3653feb78aa542cbbc29915f556ca19b,
title = "Qualitative analysis of hafnium diboride based ultra high temperature ceramics under oxyacetylene torch testing at temperatures above 2100°C",
abstract = "Oxidation tests were carried out on HfB2-SiC, HfB2-HfC, HfB2-WC-SiC, and HfB2-WSi2 ceramics using an oxyacetylene torch. The samples were oxidized between 2100 and 2300°C. From cross-sectional images, scale non-adherence was noted as a limiting factor in oxidation resistance. The sample with the best scale adherence was HfB2-WSi2. Factors involving scale non-adherence such as vapor pressure, coefficient of thermal expansion mismatch and phase transformations were considered. In comparing the scale adherence of the samples it was hypothesized that vapor pressure buildup is the principal contributing factor in the scale adherence differences observed among the tested samples. However, the coefficient of thermal expansion mismatch and HfO2 phase transformation cannot be neglected as contributing factors to scale non-adherence in all samples.",
keywords = "Hafnium diboride, Oxidation, Silicon carbide, Tungsten silicide, Ultra high temperature ceramics",
author = "Carmen Carney and Anish Paul and Saranya Venugopal and Triplicane Parthasarathy and Allan Katz and Jonathan Binner and Peter Brown",
year = "2014",
month = may,
day = "1",
doi = "10.1016/j.jeurceramsoc.2013.11.018",
language = "English",
volume = "34",
pages = "1045--1051",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier",
number = "5",

}

RIS

TY - JOUR

T1 - Qualitative analysis of hafnium diboride based ultra high temperature ceramics under oxyacetylene torch testing at temperatures above 2100°C

AU - Carney, Carmen

AU - Paul, Anish

AU - Venugopal, Saranya

AU - Parthasarathy, Triplicane

AU - Katz, Allan

AU - Binner, Jonathan

AU - Brown, Peter

PY - 2014/5/1

Y1 - 2014/5/1

N2 - Oxidation tests were carried out on HfB2-SiC, HfB2-HfC, HfB2-WC-SiC, and HfB2-WSi2 ceramics using an oxyacetylene torch. The samples were oxidized between 2100 and 2300°C. From cross-sectional images, scale non-adherence was noted as a limiting factor in oxidation resistance. The sample with the best scale adherence was HfB2-WSi2. Factors involving scale non-adherence such as vapor pressure, coefficient of thermal expansion mismatch and phase transformations were considered. In comparing the scale adherence of the samples it was hypothesized that vapor pressure buildup is the principal contributing factor in the scale adherence differences observed among the tested samples. However, the coefficient of thermal expansion mismatch and HfO2 phase transformation cannot be neglected as contributing factors to scale non-adherence in all samples.

AB - Oxidation tests were carried out on HfB2-SiC, HfB2-HfC, HfB2-WC-SiC, and HfB2-WSi2 ceramics using an oxyacetylene torch. The samples were oxidized between 2100 and 2300°C. From cross-sectional images, scale non-adherence was noted as a limiting factor in oxidation resistance. The sample with the best scale adherence was HfB2-WSi2. Factors involving scale non-adherence such as vapor pressure, coefficient of thermal expansion mismatch and phase transformations were considered. In comparing the scale adherence of the samples it was hypothesized that vapor pressure buildup is the principal contributing factor in the scale adherence differences observed among the tested samples. However, the coefficient of thermal expansion mismatch and HfO2 phase transformation cannot be neglected as contributing factors to scale non-adherence in all samples.

KW - Hafnium diboride

KW - Oxidation

KW - Silicon carbide

KW - Tungsten silicide

KW - Ultra high temperature ceramics

U2 - 10.1016/j.jeurceramsoc.2013.11.018

DO - 10.1016/j.jeurceramsoc.2013.11.018

M3 - Article

AN - SCOPUS:84892477924

VL - 34

SP - 1045

EP - 1051

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 5

ER -