Results 211 to 220 of about 6,176 (257)

Review on ultra-high temperature boride ceramics

Progress in Materials Science, 2020
Abstract Ceramic materials having melting points higher than 3000 °C and suitable for structural applications at above 2000 °C are commonly known as Ultra-High Temperature Ceramics (UHTCs). Several transition metal di-borides, possessing the desired combinations of thermo-mechanical, physical and chemical properties, form an important sub-class of ...
Brahma Raju Golla, Amartya Mukhopadhyay, Bikramjit Basu   +2 more
exaly   +3 more sources

Preparation of carbon/carbon‐ultra high temperature ceramics composites with ultra high temperature ceramics coating

Journal of the American Ceramic Society, 2018
Abstract In order to increase the oxidation resistance of carbon/carbon (C/C) composites at long‐term high temperature, C/C‐Ultra High Temperature Ceramics composites (UHTCs) with a dual‐layer UHTCs oxidation coating was successfully designed and fabricated.
Lin Xu
exaly   +2 more sources

Ultra-high temperature ceramics for extreme environments

Nature Reviews Materials, 2023
Brian C Wyatt, Srinivasa Kartik Nemani, Gregory E Hilmas   +2 more
exaly   +2 more sources

Ultra High Temperature Ceramics

2013
Most engineering applications concerned with exposure to extremely high temperatures, (>2000°C), and harsh environmental conditions require the use of ceramic materials possessing melting points in excess of ~ 3000°C. Such ceramics, more commonly referred to as ultra high temperature ceramics (UHTCs), are required to possess a desired combination of
Amartya Mukhopadhyay, G. B. Raju, Bikramjit Basu   +2 more
openaire   +1 more source

Mechanical Behaviors of Ultra-High Temperature Ceramics

Advanced Materials Research, 2010
The parameters, such as thermal expansion coefficient and Young's modulus, are considered as a function of temperature and incorporated into ANSYS code to calculate the stress field of UHTCs under high temperature condition in the present work. The stress fields of two kinds of heating cases are calculated and compared.
Fei Fei Zhou, Tao Zeng, Dai Ning Fang, Li Li Jiang   +3 more
openaire   +1 more source

Characterization of Ultra-High Temperature and Polymorphic Ceramics

2021
Material properties are highly dependent on the hierarchy of length and temporal scales experienced by the structure, where atomic levels can influence characterized structures through certain features pertaining to atomic species, their orientations and crystal types.
Ali Radhi, Kamran Behdinan
openaire   +1 more source

Instantaneous nanowelding of ultra‐high temperature ceramics for hypersonics

Journal of the American Ceramic Society, 2021
Abstract Ultra‐high temperature ceramics (UHTCs) are a group of advanced ceramic materials that possess excellent high temperature capabilities, which make them especially suitable for extreme environment engineering applications.
Fangyuan Gai, Joseph Houston Dycus, James M. LeBeau, Luke S. Walker, Erica L. Corral   +4 more
openaire   +1 more source

Joining of ultra-high temperature ceramics

2012
In the last decade, ultra-high temperature ceramics raised renewed interest after the first studies in the 60's. Thanks to their high melting point, superior to any group of materials, and to their set of interesting physical and engineering properties, they find application in aerospace industry, propulsion field, as cladding materials in generation ...
L Silvestroni, D Sciti, L Esposito, A Glaeser   +3 more
openaire   +3 more sources

Metal-Ceramic Interactions in Brazing Ultra High Temperature Diboride Ceramics

2017
In this chapter we reported the most peculiar issues related to the metal-ceramic interactions encountered when joining transition metal diborides of the 4th group (TiB2, ZrB2 and HfB2) which belong to the broader family of ultra high temperature ceramics.
Valenza F, Artini C, Gambaro S, Muolo ML, Passerone A   +4 more
openaire   +4 more sources

Ultra High Temperature Ceramic Composites

2006
Ceramic borides, carbides and nitrides are characterized by high melting points, chemical inertness and relatively good oxidation resistance in extreme environments, such as conditions experienced during reentry. This family of ceramic materials has come to be known as Ultra High Temperature Ceramics (UHTCs).
Matthew J. Gasch, Donald T. Ellerby, Sylvia M. Johnson   +2 more
openaire   +1 more source