scholarly journals Fabrication and Characterization of Environmental Barrier Coatings by Spray Drying and Atmospheric Plasma Spraying for Protection of Silicon Carbide Ceramics

2014 ◽  
Vol 51 (5) ◽  
pp. 481-486 ◽  
Author(s):  
Fan Jie Feng ◽  
Heung Soo Moon ◽  
Chan Won Kwak ◽  
Ji Yeon Park ◽  
Kee Sung Lee
Keyword(s):  
Silicon Carbide ◽  
Spray Drying ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Barrier Coatings ◽  
Environmental Barrier Coatings ◽  
Fabrication And Characterization ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization

2020 ◽  
Vol 245 ◽  
pp. 122768 ◽  
Author(s):  
Vladimir Dodevski ◽  
Maja C. Pagnacco ◽  
Ivana Radović ◽  
Milena Rosić ◽  
Bojan Janković ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Porous Carbon ◽  
Carbon Structure ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

Raman Scattering Characterization of Polytype in Silicon Carbide Ceramics: Comparison with X-ray Diffraction

2003 ◽  
Vol 86 (5) ◽  
pp. 823-829 ◽  
Author(s):  
Shin-ichi Nakashima ◽  
Makoto Higashihira ◽  
Kouji Maeda ◽  
Hidehiko Tanaka
Keyword(s):  
Silicon Carbide ◽  
Raman Scattering ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

Study of Silicon Carbide Ceramics

2009 ◽  
Vol 1181 ◽  
Author(s):  
Malek Amir Abunaemeh ◽  
Ibidapo Ojo ◽  
Mohamed Seif ◽  
Claudiu Muntele ◽  
Daryush Ila
Keyword(s):  
Silicon Carbide ◽  
Photoelectron Spectroscopy ◽  
Uranium Oxide ◽  
Nuclear Reactor ◽  
X Ray ◽  
Triso Fuel ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics ◽  
Very High

AbstractThe TRISO fuel that is intended to be used for the generation IV nuclear reactor design consists of a fuel kernel of Uranium Oxide (UOx) coated in several layers of materials with different functions. One consideration for some of these layers is Silicon Carbide (SiC) [1]. The design, manufacture and fabrication of SiC are done at the Center for Irradiation of Materials (CIM). This light weight material can maintain dimensional and chemical stability in adverse environments and very high temperatures. The characterization of the elemental makeup of the SiC material used is done using X-ray photoelectron spectroscopy (XPS). Nano-indentation is used to determine the hardness, stiffness and Young's Modulus of the material. Raman Spectroscopy is used to characterize the chemical bonding for different sample preparation temperatures.

Microstructure and Nanomechanical Property of Plasma-Sprayed Nanostructured Yb2SiO5 Environmental Barrier Coatings

2021 ◽  
Author(s):  
Tao Zheng ◽  
Baosheng Xu ◽  
Shun Wang ◽  
Donghui Guo ◽  
Feifei Zhou ◽  
...  
Keyword(s):  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Nanomechanical Property ◽  
Distribution Analysis ◽  
X Ray Diffraction ◽  
Barrier Coatings ◽  
Environmental Barrier Coatings ◽  
X Ray ◽  
Nano Indentation ◽  
Plasma Sprayed

Abstract In this study, nanostructured Yb2SiO5 coatings were prepared by atmospheric plasma spraying (APS) using nanostructured Yb2SiO5 feedstocks. Conventional Yb2SiO5 coatings were selected for comparison. The microstructure and nanomechanical property of the nanostructured and conventional Yb2SiO5 coatings were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and nano-indentation. Results indicate that the surface of the nanostructured Yb2SiO5 coatings is uniform and denser than the conventional Yb2SiO5 coatings. In addition, Weibull distribution analysis shows that the molten state of the nanostructured Yb2SiO5 coatings present a mono-modal distribution, whereas the conventional Yb2SiO5 coatings show a bi-modal distribution, i.e. molten and unmelted zones. The nanostructured Yb2SiO5 coatings have a higher elastic modulus than the conventional Yb2SiO5 coatings (167.37077 ± 16.88070 GPa versus 153.72856 ± 19.69907 GPa), reflecting their high density.

Fabrication and characterization of 8YSZ ceramic based abradable seal coatings by atmospheric plasma spraying

2020 ◽  
Vol 46 (17) ◽  
pp. 26530-26538
Author(s):  
Xiqian Zhang ◽  
Qionglian Yang ◽  
Lin Chen ◽  
Peng Song ◽  
Jing Feng
Keyword(s):  
Plasma Spraying ◽  
Atmospheric Plasma Spraying ◽  
Atmospheric Plasma ◽  
Fabrication And Characterization

Processing and Characterization of Nano Silicon Carbide Ceramics via Precursor Pyrolysis

2010 ◽  
Vol 434-435 ◽  
pp. 162-164
Author(s):  
Dong Lin Zhao ◽  
Lei Zhang ◽  
Zeng Min Shen
Keyword(s):  
Silicon Carbide ◽  
Nitrogen Atmosphere ◽  
Cross Linking ◽  
Mass Ratio ◽  
Ceramic Yield ◽  
Sic Ceramic ◽  
Nano Silicon ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

Nano silicon carbide ceramics were prepared via precursor pyrolysis. Polycarbosilane (PCS) and divinylbenzene (DVB) were selected as a precursor to silicon carbide ceramics and a cross-linking reagent for PCS, respectively. The cross-linking properties and pyrolysis of PCS and DVB were investigated by changing the mass ratios of PCS/DVB. The mass ratio of PCS/DVB has a great effect on silicon carbide ceramic yield. The cured PCS/DVB with a mass ratio of 1:0.5 has the highest SiC ceramic yield (63.1%) at the temperature up to 1500 °C and its pyrolyzates consiste of nano silicon carbide with a diameter of 10-40 nm. The microstructures of the nano silicon carbide ceramics were characterized by SEM and XRD. The pyrolysis behavior of the cured PCS/DVB was characterized by thermogravimetry in nitrogen atmosphere.

Sign in / Sign up

Export Citation Format

Share Document