Results 81 to 90 of about 885 (219)
High enthalpy testing of UHTC materials for space applications
, 2017 Space vehicles are subjected to severe heat loads when entering a planetary atmosphere and require a powerful thermal protection system (TPS). The protection systems’ thermal efficiency can strongly be enhanced by using surface materials with substantial
Esser, Burkard, Gülhan, Ali, Gülhan, A
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Development of UHTC- Ultra-high-temperature ceramics for aerospace and industrial applications [PDF]
, 2009 Zirconium and Hafnium diborides and carbides belong to the class of Ultra-High-Temperature Ceramics (UHTC) for their high melting point (2700-3900?C).
Bellosi, Alida
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Efficient Synthesis/Sintering Routes to obtain Fully Dense Ultra High Temperature Ceramics (UHTC)
, 2007 Two different synthesis/sintering routes are proposed in this work for the preparation of fully dense 2ZrB(2)-SiC ultra-high-temperature ceramic (UHTC) composites.
ORRU', ROBERTO +3 more
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Application of CCG Sensors to a High-Temperature Structure Subjected to Thermo-Mechanical Load
Sensors, 2016 This paper presents a simple methodology to perform a high temperature coupled thermo-mechanical test using ultra-high temperature ceramic material specimens (UHTCs), which are equipped with chemical composition gratings sensors (CCGs).
Weihua Xie +7 more
doaj +1 more source
EVALUATION OF OXIDATION BEHAVIOR OF UHTC COMPOSITE MATERIALS
, 2015 Oxidation behavior of C-ZrB2-SiC-ZrC under dynamic heating condition at 1800C was investigated. The composite showed better recession and oxidation resistance with the optimized composition.
Mamoru Yano +4 more
openaire +1 more source
National Journal of Community Medicine, 2015 Introduction: National family health survey (NFHS)-3 conducted in India recently has not reported on nutritional status of children in 6 -15 years age group. So this study was carried out to assess the nutritional status of the children aged 6- 15 years
Manmohan Gupta +3 more
doaj
Active Oxidation of a UHTC-Based CMC
, 2012 The active oxidation of ceramic matrix composites (CMC) is a severe problem that must be avoided for multi-use hypersonic vehicles. Much work has been performed studying the active oxidation of silicon-based CMCs such as C/SiC and SiC-coated carbon ...
Glass, David E., Splinter, Scott C.
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Robust UHTC for Sharp Leading Edge Applications
, 2003 Ultrahigh temperature ceramics have performed unreliably due to material flaws and attachment design. These deficiencies are brought to the fore by the low fracture toughness and thermal shock resistance of UHTCs.
Opila, Elizabeth J. +2 more
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, 2018 Background: To achieve the goal of Millennium Development Goal 2 (universal education), 3 (gender equality and women empowerment) and, 5 (improving maternal health), it is important that there is effective menstrual hygiene and knowledge among adolescent
Preeti Gupta +3 more
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Reactive Spark Plasma Sintering and Oxidation of ZrB2-SiC and ZrB2-HfB2-SiC Ceramic Materials
CeramicsThis study presents the fabrication possibilities of ultra-high-temperature ceramics of ZrB2-30 vol.%SiC and (ZrB2-HfB2)-30 vol.% SiC composition using the reaction spark plasma sintering of composite powders ZrB2(HfB2)-(SiO2-C) under two-stage heating ...
Elizaveta P. Simonenko +10 more
doaj +1 more source